diff --git a/.codecov.yml b/.codecov.yml
index f9cba3d..e981345 100644
--- a/.codecov.yml
+++ b/.codecov.yml
@@ -28,4 +28,5 @@ comment:
   require_changes: no
 
 ignore:
-  - internal/encoder/vm_debug
+  - internal/encoder/vm_color
+  - internal/encoder/vm_color_indent
diff --git a/README.md b/README.md
index 695c434..73e3923 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,13 @@ We are accepting requests for features that will be implemented between v0.6.0 a
 If you have the API you need, please submit your issue [here](https://github.com/goccy/go-json/issues).
 For example, I'm thinking of supporting `context.Context` of `json.Marshaler` and decoding using JSON Path.
 
+# Features
+
+- Drop-in replacement of `encoding/json`
+- Fast ( See [Benchmark section](https://github.com/goccy/go-json#benchmarks) )
+- Flexible customization with options
+- Coloring the encoded string
+
 # Installation
 
 ```
diff --git a/benchmarks/encode_test.go b/benchmarks/encode_test.go
index 619c496..b64f47a 100644
--- a/benchmarks/encode_test.go
+++ b/benchmarks/encode_test.go
@@ -67,6 +67,16 @@ func Benchmark_Encode_SmallStruct_SegmentioJson(b *testing.B) {
 	}
 }
 
+func Benchmark_Encode_SmallStruct_GoJsonColored(b *testing.B) {
+	colorOpt := gojson.Colorize(gojson.DefaultColorScheme)
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		if _, err := gojson.MarshalWithOption(NewSmallPayload(), colorOpt); err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
 func Benchmark_Encode_SmallStruct_GoJson(b *testing.B) {
 	b.ReportAllocs()
 	for i := 0; i < b.N; i++ {
@@ -146,6 +156,17 @@ func Benchmark_Encode_SmallStructCached_SegmentioJson(b *testing.B) {
 	}
 }
 
+func Benchmark_Encode_SmallStructCached_GoJsonColored(b *testing.B) {
+	cached := NewSmallPayload()
+	colorOpt := gojson.Colorize(gojson.DefaultColorScheme)
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		if _, err := gojson.MarshalWithOption(cached, colorOpt); err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
 func Benchmark_Encode_SmallStructCached_GoJson(b *testing.B) {
 	cached := NewSmallPayload()
 	b.ReportAllocs()
@@ -221,6 +242,16 @@ func Benchmark_Encode_MediumStruct_SegmentioJson(b *testing.B) {
 	}
 }
 
+func Benchmark_Encode_MediumStruct_GoJsonColored(b *testing.B) {
+	colorOpt := gojson.Colorize(gojson.DefaultColorScheme)
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		if _, err := gojson.MarshalWithOption(NewMediumPayload(), colorOpt); err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
 func Benchmark_Encode_MediumStruct_GoJson(b *testing.B) {
 	b.ReportAllocs()
 	for i := 0; i < b.N; i++ {
@@ -300,6 +331,17 @@ func Benchmark_Encode_MediumStructCached_SegmentioJson(b *testing.B) {
 	}
 }
 
+func Benchmark_Encode_MediumStructCached_GoJsonColored(b *testing.B) {
+	cached := NewMediumPayload()
+	colorOpt := gojson.Colorize(gojson.DefaultColorScheme)
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		if _, err := gojson.MarshalWithOption(cached, colorOpt); err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
 func Benchmark_Encode_MediumStructCached_GoJson(b *testing.B) {
 	cached := NewMediumPayload()
 	b.ReportAllocs()
@@ -375,6 +417,16 @@ func Benchmark_Encode_LargeStruct_SegmentioJson(b *testing.B) {
 	}
 }
 
+func Benchmark_Encode_LargeStruct_GoJsonColored(b *testing.B) {
+	colorOpt := gojson.Colorize(gojson.DefaultColorScheme)
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		if _, err := gojson.MarshalWithOption(NewLargePayload(), colorOpt); err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
 func Benchmark_Encode_LargeStruct_GoJson(b *testing.B) {
 	b.ReportAllocs()
 	for i := 0; i < b.N; i++ {
@@ -454,6 +506,17 @@ func Benchmark_Encode_LargeStructCached_SegmentioJson(b *testing.B) {
 	}
 }
 
+func Benchmark_Encode_LargeStructCached_GoJsonColored(b *testing.B) {
+	cached := NewLargePayload()
+	colorOpt := gojson.Colorize(gojson.DefaultColorScheme)
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		if _, err := gojson.MarshalWithOption(cached, colorOpt); err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
 func Benchmark_Encode_LargeStructCached_GoJson(b *testing.B) {
 	cached := NewLargePayload()
 	b.ReportAllocs()
diff --git a/color.go b/color.go
new file mode 100644
index 0000000..e80b22b
--- /dev/null
+++ b/color.go
@@ -0,0 +1,68 @@
+package json
+
+import (
+	"fmt"
+
+	"github.com/goccy/go-json/internal/encoder"
+)
+
+type (
+	ColorFormat = encoder.ColorFormat
+	ColorScheme = encoder.ColorScheme
+)
+
+const escape = "\x1b"
+
+type colorAttr int
+
+//nolint:deadcode,varcheck
+const (
+	fgBlackColor colorAttr = iota + 30
+	fgRedColor
+	fgGreenColor
+	fgYellowColor
+	fgBlueColor
+	fgMagentaColor
+	fgCyanColor
+	fgWhiteColor
+)
+
+//nolint:deadcode,varcheck
+const (
+	fgHiBlackColor colorAttr = iota + 90
+	fgHiRedColor
+	fgHiGreenColor
+	fgHiYellowColor
+	fgHiBlueColor
+	fgHiMagentaColor
+	fgHiCyanColor
+	fgHiWhiteColor
+)
+
+func createColorFormat(attr colorAttr) ColorFormat {
+	return ColorFormat{
+		Header: wrapColor(attr),
+		Footer: resetColor(),
+	}
+}
+
+func wrapColor(attr colorAttr) string {
+	return fmt.Sprintf("%s[%dm", escape, attr)
+}
+
+func resetColor() string {
+	return wrapColor(colorAttr(0))
+}
+
+var (
+	DefaultColorScheme = &ColorScheme{
+		Int:       createColorFormat(fgHiMagentaColor),
+		Uint:      createColorFormat(fgHiMagentaColor),
+		Float:     createColorFormat(fgHiMagentaColor),
+		Bool:      createColorFormat(fgHiYellowColor),
+		String:    createColorFormat(fgHiGreenColor),
+		Binary:    createColorFormat(fgHiRedColor),
+		ObjectKey: createColorFormat(fgHiCyanColor),
+		Null:      createColorFormat(fgBlueColor),
+	}
+)
diff --git a/color_test.go b/color_test.go
new file mode 100644
index 0000000..c21819d
--- /dev/null
+++ b/color_test.go
@@ -0,0 +1,49 @@
+package json_test
+
+import (
+	"testing"
+
+	"github.com/goccy/go-json"
+)
+
+func TestColorize(t *testing.T) {
+	v := struct {
+		A int
+		B uint
+		C float32
+		D string
+		E bool
+		F []byte
+		G []int
+		H *struct{}
+		I map[string]interface{}
+	}{
+		A: 123,
+		B: 456,
+		C: 3.14,
+		D: "hello",
+		E: true,
+		F: []byte("binary"),
+		G: []int{1, 2, 3, 4},
+		H: nil,
+		I: map[string]interface{}{
+			"mapA": -10,
+			"mapB": 10,
+			"mapC": nil,
+		},
+	}
+	t.Run("marshal with color", func(t *testing.T) {
+		b, err := json.MarshalWithOption(v, json.Colorize(json.DefaultColorScheme))
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log(string(b))
+	})
+	t.Run("marshal indent with color", func(t *testing.T) {
+		b, err := json.MarshalIndentWithOption(v, "", "\t", json.Colorize(json.DefaultColorScheme))
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log("\n" + string(b))
+	})
+}
diff --git a/encode.go b/encode.go
index 16f1a12..ea2bc7c 100644
--- a/encode.go
+++ b/encode.go
@@ -6,6 +6,8 @@ import (
 
 	"github.com/goccy/go-json/internal/encoder"
 	"github.com/goccy/go-json/internal/encoder/vm"
+	"github.com/goccy/go-json/internal/encoder/vm_color"
+	"github.com/goccy/go-json/internal/encoder/vm_color_indent"
 	"github.com/goccy/go-json/internal/encoder/vm_indent"
 )
 
@@ -41,9 +43,9 @@ func (e *Encoder) EncodeWithOption(v interface{}, optFuncs ...EncodeOptionFunc)
 }
 
 func (e *Encoder) encodeWithOption(ctx *encoder.RuntimeContext, v interface{}, optFuncs ...EncodeOptionFunc) error {
-	initOption(ctx.Option)
+	ctx.Option.Flag = 0
 	if e.enabledHTMLEscape {
-		ctx.Option.HTMLEscape = true
+		ctx.Option.Flag |= encoder.HTMLEscapeOption
 	}
 	for _, optFunc := range optFuncs {
 		optFunc(ctx.Option)
@@ -95,8 +97,8 @@ func (e *Encoder) SetIndent(prefix, indent string) {
 func marshal(v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
 	ctx := encoder.TakeRuntimeContext()
 
-	initOption(ctx.Option)
-	ctx.Option.HTMLEscape = true
+	ctx.Option.Flag = 0
+	ctx.Option.Flag |= encoder.HTMLEscapeOption
 	for _, optFunc := range optFuncs {
 		optFunc(ctx.Option)
 	}
@@ -122,8 +124,8 @@ func marshal(v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
 func marshalNoEscape(v interface{}) ([]byte, error) {
 	ctx := encoder.TakeRuntimeContext()
 
-	initOption(ctx.Option)
-	ctx.Option.HTMLEscape = true
+	ctx.Option.Flag = 0
+	ctx.Option.Flag |= encoder.HTMLEscapeOption
 
 	buf, err := encodeNoEscape(ctx, v)
 	if err != nil {
@@ -146,9 +148,8 @@ func marshalNoEscape(v interface{}) ([]byte, error) {
 func marshalIndent(v interface{}, prefix, indent string, optFuncs ...EncodeOptionFunc) ([]byte, error) {
 	ctx := encoder.TakeRuntimeContext()
 
-	initOption(ctx.Option)
-	ctx.Option.HTMLEscape = true
-	ctx.Option.Indent = true
+	ctx.Option.Flag = 0
+	ctx.Option.Flag |= (encoder.HTMLEscapeOption | encoder.IndentOption)
 	for _, optFunc := range optFuncs {
 		optFunc(ctx.Option)
 	}
@@ -253,24 +254,29 @@ func encodeIndent(ctx *encoder.RuntimeContext, v interface{}, prefix, indent str
 }
 
 func encodeRunCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
-	if ctx.Option.Debug {
+	if (ctx.Option.Flag & encoder.DebugOption) != 0 {
+		if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
+			return vm_color.DebugRun(ctx, b, codeSet)
+		}
 		return vm.DebugRun(ctx, b, codeSet)
 	}
+	if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
+		return vm_color.Run(ctx, b, codeSet)
+	}
 	return vm.Run(ctx, b, codeSet)
 }
 
 func encodeRunIndentCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, prefix, indent string) ([]byte, error) {
 	ctx.Prefix = []byte(prefix)
 	ctx.IndentStr = []byte(indent)
-	if ctx.Option.Debug {
+	if (ctx.Option.Flag & encoder.DebugOption) != 0 {
+		if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
+			return vm_color_indent.DebugRun(ctx, b, codeSet)
+		}
 		return vm_indent.DebugRun(ctx, b, codeSet)
 	}
+	if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
+		return vm_color_indent.Run(ctx, b, codeSet)
+	}
 	return vm_indent.Run(ctx, b, codeSet)
 }
-
-func initOption(opt *EncodeOption) {
-	opt.HTMLEscape = false
-	opt.Indent = false
-	opt.UnorderedMap = false
-	opt.Debug = false
-}
diff --git a/internal/cmd/generator/main.go b/internal/cmd/generator/main.go
index 908e4fb..b3fb697 100644
--- a/internal/cmd/generator/main.go
+++ b/internal/cmd/generator/main.go
@@ -286,7 +286,7 @@ func generateVM() error {
 	if err != nil {
 		return err
 	}
-	for _, pkg := range []string{"vm", "vm_indent"} {
+	for _, pkg := range []string{"vm", "vm_indent", "vm_color", "vm_color_indent"} {
 		f.Name.Name = pkg
 		var buf bytes.Buffer
 		printer.Fprint(&buf, fset, f)
diff --git a/internal/cmd/generator/vm.go.tmpl b/internal/cmd/generator/vm.go.tmpl
index 6c1bda1..2091ba1 100644
--- a/internal/cmd/generator/vm.go.tmpl
+++ b/internal/cmd/generator/vm.go.tmpl
@@ -14,7 +14,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
 	var code *encoder.Opcode
-	if ctx.Option.HTMLEscape {
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
 		code = codeSet.EscapeKeyCode
 	} else {
 		code = codeSet.NoescapeKeyCode
@@ -39,7 +39,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.Idx, p)
 			fallthrough
 		case encoder.OpInt:
-			b = appendInt(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpUintPtr:
@@ -53,18 +53,18 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.Idx, p)
 			fallthrough
 		case encoder.OpUint:
-			b = appendUint(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpIntString:
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpUintString:
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -370,7 +370,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				b = appendMapKeyIndent(ctx, code.Next, b)
 			} else {
 				mapCtx := encoder.NewMapContext(mlen)
@@ -385,7 +385,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -414,7 +414,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				}
 			}
 		case encoder.OpMapValue:
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				b = appendColon(ctx, b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
@@ -602,7 +602,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendStructHead(ctx, b)
 			}
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructPtrHeadOmitEmptyInt:
@@ -638,7 +638,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				code = code.NextField
 			} else {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 				code = code.Next
 			}
@@ -671,7 +671,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -709,7 +709,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			} else {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 				code = code.Next
@@ -746,7 +746,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -780,7 +780,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -817,7 +817,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -853,7 +853,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -886,7 +886,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendStructHead(ctx, b)
 			}
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructPtrHeadOmitEmptyUint:
@@ -922,7 +922,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				code = code.NextField
 			} else {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 				code = code.Next
 			}
@@ -955,7 +955,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -993,7 +993,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			} else {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 				code = code.Next
@@ -1030,7 +1030,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -1064,7 +1064,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -1101,7 +1101,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -1137,7 +1137,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3413,7 +3413,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructFieldInt:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructFieldOmitEmptyInt:
@@ -3422,7 +3422,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3430,7 +3430,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3441,7 +3441,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3453,7 +3453,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3462,7 +3462,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3474,7 +3474,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -3485,7 +3485,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3493,7 +3493,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructFieldUint:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructFieldOmitEmptyUint:
@@ -3502,7 +3502,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3510,7 +3510,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3521,7 +3521,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3533,7 +3533,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3542,7 +3542,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3554,7 +3554,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -3565,7 +3565,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -4297,7 +4297,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructEndInt:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
 		case encoder.OpStructEndOmitEmptyInt:
@@ -4306,7 +4306,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4316,7 +4316,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4327,7 +4327,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4341,7 +4341,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4350,7 +4350,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4364,7 +4364,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendStructEnd(ctx, code, b)
@@ -4375,7 +4375,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4385,7 +4385,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructEndUint:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
 		case encoder.OpStructEndOmitEmptyUint:
@@ -4394,7 +4394,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4404,7 +4404,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4415,7 +4415,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4429,7 +4429,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4438,7 +4438,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4452,7 +4452,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendStructEnd(ctx, code, b)
@@ -4463,7 +4463,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
diff --git a/internal/encoder/compiler.go b/internal/encoder/compiler.go
index ea05f3f..f9937a4 100644
--- a/internal/encoder/compiler.go
+++ b/internal/encoder/compiler.go
@@ -1456,7 +1456,7 @@ func compileStruct(ctx *compileContext, isPtr bool) (*Opcode, error) {
 		}
 		var key string
 		if ctx.escapeKey {
-			rctx := &RuntimeContext{Option: &Option{HTMLEscape: true}}
+			rctx := &RuntimeContext{Option: &Option{Flag: HTMLEscapeOption}}
 			key = fmt.Sprintf(`%s:`, string(AppendString(rctx, []byte{}, tag.Key)))
 		} else {
 			key = fmt.Sprintf(`"%s":`, tag.Key)
diff --git a/internal/encoder/encoder.go b/internal/encoder/encoder.go
index 0a737c9..5368ce3 100644
--- a/internal/encoder/encoder.go
+++ b/internal/encoder/encoder.go
@@ -375,7 +375,7 @@ func AppendMarshalJSON(ctx *RuntimeContext, code *Opcode, b []byte, v interface{
 	}
 	marshalBuf := ctx.MarshalBuf[:0]
 	marshalBuf = append(append(marshalBuf, bb...), nul)
-	compactedBuf, err := compact(b, marshalBuf, ctx.Option.HTMLEscape)
+	compactedBuf, err := compact(b, marshalBuf, (ctx.Option.Flag&HTMLEscapeOption) != 0)
 	if err != nil {
 		return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
 	}
@@ -410,7 +410,7 @@ func AppendMarshalJSONIndent(ctx *RuntimeContext, code *Opcode, b []byte, v inte
 		marshalBuf,
 		string(ctx.Prefix)+strings.Repeat(string(ctx.IndentStr), int(ctx.BaseIndent+code.Indent)),
 		string(ctx.IndentStr),
-		ctx.Option.HTMLEscape,
+		(ctx.Option.Flag&HTMLEscapeOption) != 0,
 	)
 	if err != nil {
 		return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
diff --git a/internal/encoder/int.go b/internal/encoder/int.go
index caec074..3a3482d 100644
--- a/internal/encoder/int.go
+++ b/internal/encoder/int.go
@@ -53,7 +53,7 @@ func numMask(numBitSize uint8) uint64 {
 	return 1<<numBitSize - 1
 }
 
-func AppendInt(out []byte, u64 uint64, code *Opcode) []byte {
+func AppendInt(_ *RuntimeContext, out []byte, u64 uint64, code *Opcode) []byte {
 	mask := numMask(code.NumBitSize)
 	n := u64 & mask
 	negative := (u64>>(code.NumBitSize-1))&1 == 1
@@ -96,7 +96,7 @@ func AppendInt(out []byte, u64 uint64, code *Opcode) []byte {
 	return append(out, b[i:]...)
 }
 
-func AppendUint(out []byte, u64 uint64, code *Opcode) []byte {
+func AppendUint(_ *RuntimeContext, out []byte, u64 uint64, code *Opcode) []byte {
 	mask := numMask(code.NumBitSize)
 	n := u64 & mask
 	if n < 10 {
diff --git a/internal/encoder/option.go b/internal/encoder/option.go
index 0e61a1f..76a43ae 100644
--- a/internal/encoder/option.go
+++ b/internal/encoder/option.go
@@ -1,8 +1,37 @@
 package encoder
 
+type OptionFlag uint8
+
+const (
+	HTMLEscapeOption OptionFlag = 1 << iota
+	IndentOption
+	UnorderedMapOption
+	DebugOption
+	ColorizeOption
+)
+
 type Option struct {
-	HTMLEscape   bool
-	Indent       bool
-	UnorderedMap bool
-	Debug        bool
+	Flag        OptionFlag
+	ColorScheme *ColorScheme
 }
+
+type EncodeFormat struct {
+	Header string
+	Footer string
+}
+
+type EncodeFormatScheme struct {
+	Int       EncodeFormat
+	Uint      EncodeFormat
+	Float     EncodeFormat
+	Bool      EncodeFormat
+	String    EncodeFormat
+	Binary    EncodeFormat
+	ObjectKey EncodeFormat
+	Null      EncodeFormat
+}
+
+type (
+	ColorScheme = EncodeFormatScheme
+	ColorFormat = EncodeFormat
+)
diff --git a/internal/encoder/string.go b/internal/encoder/string.go
index da2c26d..a699dba 100644
--- a/internal/encoder/string.go
+++ b/internal/encoder/string.go
@@ -406,7 +406,7 @@ func stringToUint64Slice(s string) []uint64 {
 }
 
 func AppendString(ctx *RuntimeContext, buf []byte, s string) []byte {
-	if !ctx.Option.HTMLEscape {
+	if ctx.Option.Flag&HTMLEscapeOption == 0 {
 		return appendString(buf, s)
 	}
 	valLen := len(s)
diff --git a/internal/encoder/vm/debug_vm.go b/internal/encoder/vm/debug_vm.go
index 7bd8d12..05509fe 100644
--- a/internal/encoder/vm/debug_vm.go
+++ b/internal/encoder/vm/debug_vm.go
@@ -9,7 +9,7 @@ import (
 func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	defer func() {
 		var code *encoder.Opcode
-		if ctx.Option.HTMLEscape {
+		if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
 			code = codeSet.EscapeKeyCode
 		} else {
 			code = codeSet.NoescapeKeyCode
diff --git a/internal/encoder/vm/hack.go b/internal/encoder/vm/hack.go
index 27bf348..65252b4 100644
--- a/internal/encoder/vm/hack.go
+++ b/internal/encoder/vm/hack.go
@@ -2,8 +2,8 @@ package vm
 
 import (
 	// HACK: compile order
-	// `vm`, `vm_indent` packages uses a lot of memory to compile,
+	// `vm`, `vm_indent`, `vm_color`, `vm_color_indent` packages uses a lot of memory to compile,
 	// so forcibly make dependencies and avoid compiling in concurrent.
-	// dependency order: vm => vm_indent
+	// dependency order: vm => vm_indent => vm_color => vm_color_indent
 	_ "github.com/goccy/go-json/internal/encoder/vm_indent"
 )
diff --git a/internal/encoder/vm/vm.go b/internal/encoder/vm/vm.go
index 6c1bda1..2091ba1 100644
--- a/internal/encoder/vm/vm.go
+++ b/internal/encoder/vm/vm.go
@@ -14,7 +14,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
 	var code *encoder.Opcode
-	if ctx.Option.HTMLEscape {
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
 		code = codeSet.EscapeKeyCode
 	} else {
 		code = codeSet.NoescapeKeyCode
@@ -39,7 +39,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.Idx, p)
 			fallthrough
 		case encoder.OpInt:
-			b = appendInt(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpUintPtr:
@@ -53,18 +53,18 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.Idx, p)
 			fallthrough
 		case encoder.OpUint:
-			b = appendUint(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpIntString:
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpUintString:
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -370,7 +370,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				b = appendMapKeyIndent(ctx, code.Next, b)
 			} else {
 				mapCtx := encoder.NewMapContext(mlen)
@@ -385,7 +385,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -414,7 +414,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				}
 			}
 		case encoder.OpMapValue:
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				b = appendColon(ctx, b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
@@ -602,7 +602,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendStructHead(ctx, b)
 			}
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructPtrHeadOmitEmptyInt:
@@ -638,7 +638,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				code = code.NextField
 			} else {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 				code = code.Next
 			}
@@ -671,7 +671,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -709,7 +709,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			} else {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 				code = code.Next
@@ -746,7 +746,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -780,7 +780,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -817,7 +817,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -853,7 +853,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -886,7 +886,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendStructHead(ctx, b)
 			}
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructPtrHeadOmitEmptyUint:
@@ -922,7 +922,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				code = code.NextField
 			} else {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 				code = code.Next
 			}
@@ -955,7 +955,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -993,7 +993,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			} else {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 				code = code.Next
@@ -1030,7 +1030,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -1064,7 +1064,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -1101,7 +1101,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -1137,7 +1137,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3413,7 +3413,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructFieldInt:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructFieldOmitEmptyInt:
@@ -3422,7 +3422,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3430,7 +3430,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3441,7 +3441,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3453,7 +3453,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3462,7 +3462,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3474,7 +3474,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -3485,7 +3485,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3493,7 +3493,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructFieldUint:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructFieldOmitEmptyUint:
@@ -3502,7 +3502,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3510,7 +3510,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3521,7 +3521,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3533,7 +3533,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3542,7 +3542,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3554,7 +3554,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -3565,7 +3565,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -4297,7 +4297,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructEndInt:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
 		case encoder.OpStructEndOmitEmptyInt:
@@ -4306,7 +4306,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4316,7 +4316,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4327,7 +4327,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4341,7 +4341,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4350,7 +4350,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4364,7 +4364,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendStructEnd(ctx, code, b)
@@ -4375,7 +4375,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4385,7 +4385,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructEndUint:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
 		case encoder.OpStructEndOmitEmptyUint:
@@ -4394,7 +4394,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4404,7 +4404,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4415,7 +4415,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4429,7 +4429,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4438,7 +4438,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4452,7 +4452,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendStructEnd(ctx, code, b)
@@ -4463,7 +4463,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
diff --git a/internal/encoder/vm_color/debug_vm.go b/internal/encoder/vm_color/debug_vm.go
new file mode 100644
index 0000000..6a6a33d
--- /dev/null
+++ b/internal/encoder/vm_color/debug_vm.go
@@ -0,0 +1,34 @@
+package vm_color
+
+import (
+	"fmt"
+
+	"github.com/goccy/go-json/internal/encoder"
+)
+
+func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
+	var code *encoder.Opcode
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
+		code = codeSet.EscapeKeyCode
+	} else {
+		code = codeSet.NoescapeKeyCode
+	}
+
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Println("=============[DEBUG]===============")
+			fmt.Println("* [TYPE]")
+			fmt.Println(codeSet.Type)
+			fmt.Printf("\n")
+			fmt.Println("* [ALL OPCODE]")
+			fmt.Println(code.Dump())
+			fmt.Printf("\n")
+			fmt.Println("* [CONTEXT]")
+			fmt.Printf("%+v\n", ctx)
+			fmt.Println("===================================")
+			panic(err)
+		}
+	}()
+
+	return Run(ctx, b, codeSet)
+}
diff --git a/internal/encoder/vm_color/hack.go b/internal/encoder/vm_color/hack.go
new file mode 100644
index 0000000..12ec56c
--- /dev/null
+++ b/internal/encoder/vm_color/hack.go
@@ -0,0 +1,9 @@
+package vm_color
+
+import (
+	// HACK: compile order
+	// `vm`, `vm_indent`, `vm_color`, `vm_color_indent` packages uses a lot of memory to compile,
+	// so forcibly make dependencies and avoid compiling in concurrent.
+	// dependency order: vm => vm_indent => vm_color => vm_color_indent
+	_ "github.com/goccy/go-json/internal/encoder/vm_color_indent"
+)
diff --git a/internal/encoder/vm_color/util.go b/internal/encoder/vm_color/util.go
new file mode 100644
index 0000000..58dd9eb
--- /dev/null
+++ b/internal/encoder/vm_color/util.go
@@ -0,0 +1,279 @@
+package vm_color
+
+import (
+	"encoding/json"
+	"fmt"
+	"unsafe"
+
+	"github.com/goccy/go-json/internal/encoder"
+	"github.com/goccy/go-json/internal/runtime"
+)
+
+const uintptrSize = 4 << (^uintptr(0) >> 63)
+
+var (
+	errUnsupportedValue = encoder.ErrUnsupportedValue
+	errUnsupportedFloat = encoder.ErrUnsupportedFloat
+	mapiterinit         = encoder.MapIterInit
+	mapiterkey          = encoder.MapIterKey
+	mapitervalue        = encoder.MapIterValue
+	mapiternext         = encoder.MapIterNext
+	maplen              = encoder.MapLen
+)
+
+type emptyInterface struct {
+	typ *runtime.Type
+	ptr unsafe.Pointer
+}
+
+func errUnimplementedOp(op encoder.OpType) error {
+	return fmt.Errorf("encoder: opcode %s has not been implemented", op)
+}
+
+func load(base uintptr, idx uint32) uintptr {
+	addr := base + uintptr(idx)
+	return **(**uintptr)(unsafe.Pointer(&addr))
+}
+
+func store(base uintptr, idx uint32, p uintptr) {
+	addr := base + uintptr(idx)
+	**(**uintptr)(unsafe.Pointer(&addr)) = p
+}
+
+func loadNPtr(base uintptr, idx uint32, ptrNum uint8) uintptr {
+	addr := base + uintptr(idx)
+	p := **(**uintptr)(unsafe.Pointer(&addr))
+	for i := uint8(0); i < ptrNum; i++ {
+		if p == 0 {
+			return 0
+		}
+		p = ptrToPtr(p)
+	}
+	return p
+}
+
+func ptrToUint64(p uintptr) uint64              { return **(**uint64)(unsafe.Pointer(&p)) }
+func ptrToFloat32(p uintptr) float32            { return **(**float32)(unsafe.Pointer(&p)) }
+func ptrToFloat64(p uintptr) float64            { return **(**float64)(unsafe.Pointer(&p)) }
+func ptrToBool(p uintptr) bool                  { return **(**bool)(unsafe.Pointer(&p)) }
+func ptrToBytes(p uintptr) []byte               { return **(**[]byte)(unsafe.Pointer(&p)) }
+func ptrToNumber(p uintptr) json.Number         { return **(**json.Number)(unsafe.Pointer(&p)) }
+func ptrToString(p uintptr) string              { return **(**string)(unsafe.Pointer(&p)) }
+func ptrToSlice(p uintptr) *runtime.SliceHeader { return *(**runtime.SliceHeader)(unsafe.Pointer(&p)) }
+func ptrToPtr(p uintptr) uintptr {
+	return uintptr(**(**unsafe.Pointer)(unsafe.Pointer(&p)))
+}
+func ptrToNPtr(p uintptr, ptrNum uint8) uintptr {
+	for i := uint8(0); i < ptrNum; i++ {
+		if p == 0 {
+			return 0
+		}
+		p = ptrToPtr(p)
+	}
+	return p
+}
+
+func ptrToUnsafePtr(p uintptr) unsafe.Pointer {
+	return *(*unsafe.Pointer)(unsafe.Pointer(&p))
+}
+func ptrToInterface(code *encoder.Opcode, p uintptr) interface{} {
+	return *(*interface{})(unsafe.Pointer(&emptyInterface{
+		typ: code.Type,
+		ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
+	}))
+}
+
+func appendInt(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
+	format := ctx.Option.ColorScheme.Int
+	b = append(b, format.Header...)
+	b = encoder.AppendInt(ctx, b, v, code)
+	return append(b, format.Footer...)
+}
+
+func appendUint(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
+	format := ctx.Option.ColorScheme.Uint
+	b = append(b, format.Header...)
+	b = encoder.AppendUint(ctx, b, v, code)
+	return append(b, format.Footer...)
+}
+
+func appendFloat32(ctx *encoder.RuntimeContext, b []byte, v float32) []byte {
+	format := ctx.Option.ColorScheme.Float
+	b = append(b, format.Header...)
+	b = encoder.AppendFloat32(ctx, b, v)
+	return append(b, format.Footer...)
+}
+
+func appendFloat64(ctx *encoder.RuntimeContext, b []byte, v float64) []byte {
+	format := ctx.Option.ColorScheme.Float
+	b = append(b, format.Header...)
+	b = encoder.AppendFloat64(ctx, b, v)
+	return append(b, format.Footer...)
+}
+
+func appendString(ctx *encoder.RuntimeContext, b []byte, v string) []byte {
+	format := ctx.Option.ColorScheme.String
+	b = append(b, format.Header...)
+	b = encoder.AppendString(ctx, b, v)
+	return append(b, format.Footer...)
+}
+
+func appendByteSlice(ctx *encoder.RuntimeContext, b []byte, src []byte) []byte {
+	format := ctx.Option.ColorScheme.Binary
+	b = append(b, format.Header...)
+	b = encoder.AppendByteSlice(ctx, b, src)
+	return append(b, format.Footer...)
+}
+
+func appendNumber(ctx *encoder.RuntimeContext, b []byte, n json.Number) ([]byte, error) {
+	format := ctx.Option.ColorScheme.Int
+	b = append(b, format.Header...)
+	bb, err := encoder.AppendNumber(ctx, b, n)
+	if err != nil {
+		return nil, err
+	}
+	return append(bb, format.Footer...), nil
+}
+
+func appendBool(ctx *encoder.RuntimeContext, b []byte, v bool) []byte {
+	format := ctx.Option.ColorScheme.Bool
+	b = append(b, format.Header...)
+	if v {
+		b = append(b, "true"...)
+	} else {
+		b = append(b, "false"...)
+	}
+	return append(b, format.Footer...)
+}
+
+func appendNull(ctx *encoder.RuntimeContext, b []byte) []byte {
+	format := ctx.Option.ColorScheme.Null
+	b = append(b, format.Header...)
+	b = append(b, "null"...)
+	return append(b, format.Footer...)
+}
+
+func appendComma(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, ',')
+}
+
+func appendColon(_ *encoder.RuntimeContext, b []byte) []byte {
+	last := len(b) - 1
+	b[last] = ':'
+	return b
+}
+
+func appendMapKeyValue(_ *encoder.RuntimeContext, _ *encoder.Opcode, b, key, value []byte) []byte {
+	b = append(b, key[:len(key)-1]...)
+	b = append(b, ':')
+	return append(b, value...)
+}
+
+func appendMapEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
+	last := len(b) - 1
+	b[last] = '}'
+	b = append(b, ',')
+	return b
+}
+
+func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, _ *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
+	ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(iface))
+	ifaceCodeSet, err := encoder.CompileToGetCodeSet(uintptr(unsafe.Pointer(iface.typ)))
+	if err != nil {
+		return nil, err
+	}
+
+	totalLength := uintptr(codeSet.CodeLength)
+	nextTotalLength := uintptr(ifaceCodeSet.CodeLength)
+
+	curlen := uintptr(len(ctx.Ptrs))
+	offsetNum := ptrOffset / uintptrSize
+
+	newLen := offsetNum + totalLength + nextTotalLength
+	if curlen < newLen {
+		ctx.Ptrs = append(ctx.Ptrs, make([]uintptr, newLen-curlen)...)
+	}
+	oldPtrs := ctx.Ptrs
+
+	newPtrs := ctx.Ptrs[(ptrOffset+totalLength*uintptrSize)/uintptrSize:]
+	newPtrs[0] = uintptr(iface.ptr)
+
+	ctx.Ptrs = newPtrs
+
+	bb, err := Run(ctx, b, ifaceCodeSet)
+	if err != nil {
+		return nil, err
+	}
+
+	ctx.Ptrs = oldPtrs
+	return bb, nil
+}
+
+func appendMarshalJSON(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
+	return encoder.AppendMarshalJSON(ctx, code, b, v)
+}
+
+func appendMarshalText(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
+	format := ctx.Option.ColorScheme.String
+	b = append(b, format.Header...)
+	bb, err := encoder.AppendMarshalText(ctx, code, b, v)
+	if err != nil {
+		return nil, err
+	}
+	return append(bb, format.Footer...), nil
+}
+
+func appendArrayHead(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
+	return append(b, '[')
+}
+
+func appendArrayEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
+	last := len(b) - 1
+	b[last] = ']'
+	return append(b, ',')
+}
+
+func appendEmptyArray(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, '[', ']', ',')
+}
+
+func appendEmptyObject(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, '{', '}', ',')
+}
+
+func appendObjectEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
+	last := len(b) - 1
+	b[last] = '}'
+	return append(b, ',')
+}
+
+func appendStructHead(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, '{')
+}
+
+func appendStructKey(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	format := ctx.Option.ColorScheme.ObjectKey
+	b = append(b, format.Header...)
+	b = append(b, code.Key[:len(code.Key)-1]...)
+	b = append(b, format.Footer...)
+
+	return append(b, ':')
+}
+
+func appendStructEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
+	return append(b, '}', ',')
+}
+
+func appendStructEndSkipLast(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	last := len(b) - 1
+	if b[last] == ',' {
+		b[last] = '}'
+		return appendComma(ctx, b)
+	}
+	return appendStructEnd(ctx, code, b)
+}
+
+func restoreIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, _ uintptr)               {}
+func storeIndent(_ uintptr, _ *encoder.Opcode, _ uintptr)                                 {}
+func appendMapKeyIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte    { return b }
+func appendArrayElemIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte { return b }
diff --git a/internal/encoder/vm_color/vm.go b/internal/encoder/vm_color/vm.go
new file mode 100644
index 0000000..0ac3179
--- /dev/null
+++ b/internal/encoder/vm_color/vm.go
@@ -0,0 +1,4998 @@
+// Code generated by internal/cmd/generator. DO NOT EDIT!
+package vm_color
+
+import (
+	"math"
+	"sort"
+	"unsafe"
+
+	"github.com/goccy/go-json/internal/encoder"
+)
+
+func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
+	recursiveLevel := 0
+	ptrOffset := uintptr(0)
+	ctxptr := ctx.Ptr()
+	var code *encoder.Opcode
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
+		code = codeSet.EscapeKeyCode
+	} else {
+		code = codeSet.NoescapeKeyCode
+	}
+
+	for {
+		switch code.Op {
+		default:
+			return nil, errUnimplementedOp(code.Op)
+		case encoder.OpPtr:
+			p := load(ctxptr, code.Idx)
+			code = code.Next
+			store(ctxptr, code.Idx, ptrToPtr(p))
+		case encoder.OpIntPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpInt:
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpUintPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpUint:
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpIntString:
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpUintString:
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpFloat32Ptr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpFloat32:
+			b = appendFloat32(ctx, b, ptrToFloat32(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpFloat64Ptr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpFloat64:
+			v := ptrToFloat64(load(ctxptr, code.Idx))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStringPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpString:
+			b = appendString(ctx, b, ptrToString(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpBoolPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpBool:
+			b = appendBool(ctx, b, ptrToBool(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpBytesPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpBytes:
+			b = appendByteSlice(ctx, b, ptrToBytes(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpNumberPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpNumber:
+			bb, err := appendNumber(ctx, b, ptrToNumber(load(ctxptr, code.Idx)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpInterfacePtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpInterface:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			for _, seen := range ctx.SeenPtr {
+				if p == seen {
+					return nil, errUnsupportedValue(code, p)
+				}
+			}
+			ctx.SeenPtr = append(ctx.SeenPtr, p)
+			iface := (*emptyInterface)(ptrToUnsafePtr(p))
+			if iface.ptr == nil {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			bb, err := appendInterface(ctx, codeSet, code, b, iface, ptrOffset)
+			if err != nil {
+				return nil, err
+			}
+			ctxptr = ctx.Ptr()
+			ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]
+
+			b = bb
+			code = code.Next
+		case encoder.OpMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToPtr(p))
+			fallthrough
+		case encoder.OpMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			if (code.Flags&encoder.IsNilableTypeFlags) != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToPtr(p))
+			fallthrough
+		case encoder.OpMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = append(b, `""`...)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			if (code.Flags&encoder.IsNilableTypeFlags) != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpSlicePtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpSlice:
+			p := load(ctxptr, code.Idx)
+			slice := ptrToSlice(p)
+			if p == 0 || slice.Data == nil {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.ElemIdx, 0)
+			store(ctxptr, code.Length, uintptr(slice.Len))
+			store(ctxptr, code.Idx, uintptr(slice.Data))
+			if slice.Len > 0 {
+				b = appendArrayHead(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, uintptr(slice.Data))
+			} else {
+				b = appendEmptyArray(ctx, b)
+				code = code.End.Next
+			}
+		case encoder.OpSliceElem:
+			idx := load(ctxptr, code.ElemIdx)
+			length := load(ctxptr, code.Length)
+			idx++
+			if idx < length {
+				b = appendArrayElemIndent(ctx, code, b)
+				store(ctxptr, code.ElemIdx, idx)
+				data := load(ctxptr, code.Idx)
+				size := uintptr(code.Size)
+				code = code.Next
+				store(ctxptr, code.Idx, data+idx*size)
+			} else {
+				b = appendArrayEnd(ctx, code, b)
+				code = code.End.Next
+			}
+		case encoder.OpArrayPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpArray:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			if code.Length > 0 {
+				b = appendArrayHead(ctx, code, b)
+				store(ctxptr, code.ElemIdx, 0)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				b = appendEmptyArray(ctx, b)
+				code = code.End.Next
+			}
+		case encoder.OpArrayElem:
+			idx := load(ctxptr, code.ElemIdx)
+			idx++
+			if idx < uintptr(code.Length) {
+				b = appendArrayElemIndent(ctx, code, b)
+				store(ctxptr, code.ElemIdx, idx)
+				p := load(ctxptr, code.Idx)
+				size := uintptr(code.Size)
+				code = code.Next
+				store(ctxptr, code.Idx, p+idx*size)
+			} else {
+				b = appendArrayEnd(ctx, code, b)
+				code = code.End.Next
+			}
+		case encoder.OpMapPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			uptr := ptrToUnsafePtr(p)
+			mlen := maplen(uptr)
+			if mlen <= 0 {
+				b = appendEmptyObject(ctx, b)
+				code = code.End.Next
+				break
+			}
+			b = appendStructHead(ctx, b)
+			iter := mapiterinit(code.Type, uptr)
+			ctx.KeepRefs = append(ctx.KeepRefs, iter)
+			store(ctxptr, code.ElemIdx, 0)
+			store(ctxptr, code.Length, uintptr(mlen))
+			store(ctxptr, code.MapIter, uintptr(iter))
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
+				b = appendMapKeyIndent(ctx, code.Next, b)
+			} else {
+				mapCtx := encoder.NewMapContext(mlen)
+				mapCtx.Pos = append(mapCtx.Pos, len(b))
+				ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(mapCtx))
+				store(ctxptr, code.End.MapPos, uintptr(unsafe.Pointer(mapCtx)))
+			}
+			key := mapiterkey(iter)
+			store(ctxptr, code.Next.Idx, uintptr(key))
+			code = code.Next
+		case encoder.OpMapKey:
+			idx := load(ctxptr, code.ElemIdx)
+			length := load(ctxptr, code.Length)
+			idx++
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
+				if idx < length {
+					b = appendMapKeyIndent(ctx, code, b)
+					store(ctxptr, code.ElemIdx, idx)
+					ptr := load(ctxptr, code.MapIter)
+					iter := ptrToUnsafePtr(ptr)
+					key := mapiterkey(iter)
+					store(ctxptr, code.Next.Idx, uintptr(key))
+					code = code.Next
+				} else {
+					b = appendObjectEnd(ctx, code, b)
+					code = code.End.Next
+				}
+			} else {
+				ptr := load(ctxptr, code.End.MapPos)
+				mapCtx := (*encoder.MapContext)(ptrToUnsafePtr(ptr))
+				mapCtx.Pos = append(mapCtx.Pos, len(b))
+				if idx < length {
+					ptr := load(ctxptr, code.MapIter)
+					iter := ptrToUnsafePtr(ptr)
+					store(ctxptr, code.ElemIdx, idx)
+					key := mapiterkey(iter)
+					store(ctxptr, code.Next.Idx, uintptr(key))
+					code = code.Next
+				} else {
+					code = code.End
+				}
+			}
+		case encoder.OpMapValue:
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
+				b = appendColon(ctx, b)
+			} else {
+				ptr := load(ctxptr, code.End.MapPos)
+				mapCtx := (*encoder.MapContext)(ptrToUnsafePtr(ptr))
+				mapCtx.Pos = append(mapCtx.Pos, len(b))
+			}
+			ptr := load(ctxptr, code.MapIter)
+			iter := ptrToUnsafePtr(ptr)
+			value := mapitervalue(iter)
+			store(ctxptr, code.Next.Idx, uintptr(value))
+			mapiternext(iter)
+			code = code.Next
+		case encoder.OpMapEnd:
+			// this operation only used by sorted map.
+			length := int(load(ctxptr, code.Length))
+			ptr := load(ctxptr, code.MapPos)
+			mapCtx := (*encoder.MapContext)(ptrToUnsafePtr(ptr))
+			pos := mapCtx.Pos
+			for i := 0; i < length; i++ {
+				startKey := pos[i*2]
+				startValue := pos[i*2+1]
+				var endValue int
+				if i+1 < length {
+					endValue = pos[i*2+2]
+				} else {
+					endValue = len(b)
+				}
+				mapCtx.Slice.Items = append(mapCtx.Slice.Items, encoder.MapItem{
+					Key:   b[startKey:startValue],
+					Value: b[startValue:endValue],
+				})
+			}
+			sort.Sort(mapCtx.Slice)
+			buf := mapCtx.Buf
+			for _, item := range mapCtx.Slice.Items {
+				buf = appendMapKeyValue(ctx, code, buf, item.Key, item.Value)
+			}
+			buf = appendMapEnd(ctx, code, buf)
+			b = b[:pos[0]]
+			b = append(b, buf...)
+			mapCtx.Buf = buf
+			encoder.ReleaseMapContext(mapCtx)
+			code = code.Next
+		case encoder.OpRecursivePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpRecursive:
+			ptr := load(ctxptr, code.Idx)
+			if ptr != 0 {
+				if recursiveLevel > encoder.StartDetectingCyclesAfter {
+					for _, seen := range ctx.SeenPtr {
+						if ptr == seen {
+							return nil, errUnsupportedValue(code, ptr)
+						}
+					}
+				}
+			}
+			ctx.SeenPtr = append(ctx.SeenPtr, ptr)
+			c := code.Jmp.Code
+			curlen := uintptr(len(ctx.Ptrs))
+			offsetNum := ptrOffset / uintptrSize
+			oldOffset := ptrOffset
+			ptrOffset += code.Jmp.CurLen * uintptrSize
+			oldBaseIndent := ctx.BaseIndent
+			ctx.BaseIndent += code.Indent - 1
+
+			newLen := offsetNum + code.Jmp.CurLen + code.Jmp.NextLen
+			if curlen < newLen {
+				ctx.Ptrs = append(ctx.Ptrs, make([]uintptr, newLen-curlen)...)
+			}
+			ctxptr = ctx.Ptr() + ptrOffset // assign new ctxptr
+
+			store(ctxptr, c.Idx, ptr)
+			store(ctxptr, c.End.Next.Idx, oldOffset)
+			store(ctxptr, c.End.Next.ElemIdx, uintptr(unsafe.Pointer(code.Next)))
+			storeIndent(ctxptr, c, uintptr(oldBaseIndent))
+			code = c
+			recursiveLevel++
+		case encoder.OpRecursiveEnd:
+			recursiveLevel--
+
+			// restore ctxptr
+			restoreIndent(ctx, code, ctxptr)
+			offset := load(ctxptr, code.Idx)
+			ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]
+
+			codePtr := load(ctxptr, code.ElemIdx)
+			code = (*encoder.Opcode)(ptrToUnsafePtr(codePtr))
+			ctxptr = ctx.Ptr() + offset
+			ptrOffset = offset
+		case encoder.OpStructPtrHead:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHead:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && ((code.Flags&encoder.IndirectFlags) != 0 || code.Next.Op == encoder.OpStructEnd) {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags&encoder.AnonymousKeyFlags) == 0 && len(code.Key) > 0 {
+				b = appendStructKey(ctx, code, b)
+			}
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmpty:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmpty:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && ((code.Flags&encoder.IndirectFlags) != 0 || code.Next.Op == encoder.OpStructEnd) {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			p += uintptr(code.Offset)
+			if p == 0 || (ptrToPtr(p) == 0 && (code.Flags&encoder.IsNextOpPtrTypeFlags) != 0) {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadInt:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadInt:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyInt:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyInt:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadIntString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadIntString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyIntString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyIntString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadUint:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadUint:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUint:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUint:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadUintString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadUintString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUintString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUintString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat32:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat32:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat32String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat32String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat64:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat64:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat64String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat64String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat64(ctx, b, v)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, ptrToString(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToString(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadStringString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadStringString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p+uintptr(code.Offset)))))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyStringString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyStringString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToString(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, v)))
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, ptrToString(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, ptrToString(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadBool:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadBool:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBool:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBool:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructPtrHeadBoolString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadBoolString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBoolString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBoolString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructPtrHeadBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendBool(ctx, b, ptrToBool(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadBytes:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadBytes:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendByteSlice(ctx, b, ptrToBytes(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBytes:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBytes:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToBytes(p + uintptr(code.Offset))
+			if len(v) == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadNumber:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadNumber:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumber:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumber:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadNumberString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadNumberString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = append(bb, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumberString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumberString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadArray, encoder.OpStructPtrHeadSlice:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadArray, encoder.OpStructHeadSlice:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmptyArray:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyArray:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			p += uintptr(code.Offset)
+			b = appendStructKey(ctx, code, b)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmptySlice:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptySlice:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			p += uintptr(code.Offset)
+			slice := ptrToSlice(p)
+			if slice.Len == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadArrayPtr, encoder.OpStructPtrHeadSlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadArrayPtr, encoder.OpStructHeadSlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.NextField
+			} else {
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadOmitEmptyArrayPtr, encoder.OpStructPtrHeadOmitEmptySlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyArrayPtr, encoder.OpStructHeadOmitEmptySlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if p != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p + uintptr(code.Offset))
+			}
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmptyMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p + uintptr(code.Offset))
+			}
+			if maplen(ptrToUnsafePtr(p)) == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.NextField
+				break
+			}
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.NextField
+			} else {
+				if (code.Flags & encoder.IndirectFlags) != 0 {
+					p = ptrToNPtr(p, code.PtrNum)
+				}
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadOmitEmptyMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p == 0 {
+				code = code.NextField
+				break
+			}
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p == 0 {
+				code = code.NextField
+			} else {
+				if (code.Flags & encoder.IndirectFlags) != 0 {
+					p = ptrToNPtr(p, code.PtrNum)
+				}
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadMarshalJSON {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadOmitEmptyMarshalJSON {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			iface := ptrToInterface(code, p)
+			if (code.Flags&encoder.NilCheckFlags) != 0 && encoder.IsNilForMarshaler(iface) {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalJSON(ctx, code, b, iface)
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadMarshalText {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadOmitEmptyMarshalText {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructField:
+			if code.Flags&encoder.AnonymousKeyFlags == 0 {
+				b = appendStructKey(ctx, code, b)
+			}
+			p := load(ctxptr, code.Idx) + uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmpty:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if ptrToPtr(p) == 0 && (code.Flags&encoder.IsNextOpPtrTypeFlags) != 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructFieldInt:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyInt:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldIntString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyIntString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldIntPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldIntPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUint:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUint:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUintString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUintString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUintPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUintPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32String:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat64(ctx, b, v)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			v := ptrToFloat64(p)
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, ptrToString(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldStringString:
+			p := load(ctxptr, code.Idx)
+			s := ptrToString(p + uintptr(code.Offset))
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, string(appendString(ctx, []byte{}, s)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyStringString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, v)))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldStringPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, ptrToString(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, ptrToString(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldStringPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBool:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBool:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBoolString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBoolString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBoolPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendBool(ctx, b, ptrToBool(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBytes:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendByteSlice(ctx, b, ptrToBytes(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBytes:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBytes(p + uintptr(code.Offset))
+			if len(v) > 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBytesPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumber:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumber:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumberString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = append(bb, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumberString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumberPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				code = code.NextField
+				break
+			}
+			iface := ptrToInterface(code, p)
+			if (code.Flags&encoder.NilCheckFlags) != 0 && encoder.IsNilForMarshaler(iface) {
+				code = code.NextField
+				break
+			}
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendMarshalJSON(ctx, code, b, iface)
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructFieldMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldMarshalText:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalText:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				code = code.NextField
+				break
+			}
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructFieldMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldArray:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyArray:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldArrayPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyArrayPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructFieldSlice:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptySlice:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			slice := ptrToSlice(p)
+			if slice.Len == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructFieldSlicePtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptySlicePtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructFieldMap:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyMap:
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p == 0 || maplen(ptrToUnsafePtr(p)) == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructFieldMapPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p != 0 {
+				p = ptrToNPtr(p, code.PtrNum)
+			}
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyMapPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p != 0 {
+				p = ptrToNPtr(p, code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructFieldStruct:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyStruct:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if ptrToPtr(p) == 0 && (code.Flags&encoder.IsNextOpPtrTypeFlags) != 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructAnonymousEnd:
+			code = code.Next
+		case encoder.OpStructEnd:
+			b = appendStructEndSkipLast(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndInt:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyInt:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, u64, code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndIntString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyIntString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndIntPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndIntPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUint:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUint:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, u64, code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUintString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUintString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUintPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUintPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32String:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32Ptr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32PtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat64(ctx, b, v)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat64(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat64(ctx, b, v)
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64Ptr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendStructEnd(ctx, code, b)
+				code = code.Next
+				break
+			}
+			v := ptrToFloat64(p)
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64PtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, ptrToString(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndStringString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			s := ptrToString(p + uintptr(code.Offset))
+			b = appendString(ctx, b, string(appendString(ctx, []byte{}, s)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyStringString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, v)))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndStringPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, ptrToString(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, ptrToString(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndStringPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBool:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBool:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBoolString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBoolString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBoolPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendBool(ctx, b, ptrToBool(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBoolPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBytes:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendByteSlice(ctx, b, ptrToBytes(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBytes:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBytes(p + uintptr(code.Offset))
+			if len(v) > 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBytesPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumber:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendStructEnd(ctx, code, bb)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumber:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = appendStructEnd(ctx, code, bb)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumberString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = append(bb, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumberString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumberPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendStructEnd(ctx, code, bb)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumberPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpEnd:
+			goto END
+		}
+	}
+END:
+	return b, nil
+}
diff --git a/internal/encoder/vm_color_indent/debug_vm.go b/internal/encoder/vm_color_indent/debug_vm.go
new file mode 100644
index 0000000..a68bbf6
--- /dev/null
+++ b/internal/encoder/vm_color_indent/debug_vm.go
@@ -0,0 +1,34 @@
+package vm_color_indent
+
+import (
+	"fmt"
+
+	"github.com/goccy/go-json/internal/encoder"
+)
+
+func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
+	var code *encoder.Opcode
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
+		code = codeSet.EscapeKeyCode
+	} else {
+		code = codeSet.NoescapeKeyCode
+	}
+
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Println("=============[DEBUG]===============")
+			fmt.Println("* [TYPE]")
+			fmt.Println(codeSet.Type)
+			fmt.Printf("\n")
+			fmt.Println("* [ALL OPCODE]")
+			fmt.Println(code.Dump())
+			fmt.Printf("\n")
+			fmt.Println("* [CONTEXT]")
+			fmt.Printf("%+v\n", ctx)
+			fmt.Println("===================================")
+			panic(err)
+		}
+	}()
+
+	return Run(ctx, b, codeSet)
+}
diff --git a/internal/encoder/vm_color_indent/util.go b/internal/encoder/vm_color_indent/util.go
new file mode 100644
index 0000000..58f88e5
--- /dev/null
+++ b/internal/encoder/vm_color_indent/util.go
@@ -0,0 +1,304 @@
+package vm_color_indent
+
+import (
+	"encoding/json"
+	"fmt"
+	"unsafe"
+
+	"github.com/goccy/go-json/internal/encoder"
+	"github.com/goccy/go-json/internal/runtime"
+)
+
+const uintptrSize = 4 << (^uintptr(0) >> 63)
+
+var (
+	appendIndent        = encoder.AppendIndent
+	appendStructEnd     = encoder.AppendStructEndIndent
+	errUnsupportedValue = encoder.ErrUnsupportedValue
+	errUnsupportedFloat = encoder.ErrUnsupportedFloat
+	mapiterinit         = encoder.MapIterInit
+	mapiterkey          = encoder.MapIterKey
+	mapitervalue        = encoder.MapIterValue
+	mapiternext         = encoder.MapIterNext
+	maplen              = encoder.MapLen
+)
+
+type emptyInterface struct {
+	typ *runtime.Type
+	ptr unsafe.Pointer
+}
+
+func errUnimplementedOp(op encoder.OpType) error {
+	return fmt.Errorf("encoder (indent): opcode %s has not been implemented", op)
+}
+
+func load(base uintptr, idx uint32) uintptr {
+	addr := base + uintptr(idx)
+	return **(**uintptr)(unsafe.Pointer(&addr))
+}
+
+func store(base uintptr, idx uint32, p uintptr) {
+	addr := base + uintptr(idx)
+	**(**uintptr)(unsafe.Pointer(&addr)) = p
+}
+
+func loadNPtr(base uintptr, idx uint32, ptrNum uint8) uintptr {
+	addr := base + uintptr(idx)
+	p := **(**uintptr)(unsafe.Pointer(&addr))
+	for i := uint8(0); i < ptrNum; i++ {
+		if p == 0 {
+			return 0
+		}
+		p = ptrToPtr(p)
+	}
+	return p
+}
+
+func ptrToUint64(p uintptr) uint64              { return **(**uint64)(unsafe.Pointer(&p)) }
+func ptrToFloat32(p uintptr) float32            { return **(**float32)(unsafe.Pointer(&p)) }
+func ptrToFloat64(p uintptr) float64            { return **(**float64)(unsafe.Pointer(&p)) }
+func ptrToBool(p uintptr) bool                  { return **(**bool)(unsafe.Pointer(&p)) }
+func ptrToBytes(p uintptr) []byte               { return **(**[]byte)(unsafe.Pointer(&p)) }
+func ptrToNumber(p uintptr) json.Number         { return **(**json.Number)(unsafe.Pointer(&p)) }
+func ptrToString(p uintptr) string              { return **(**string)(unsafe.Pointer(&p)) }
+func ptrToSlice(p uintptr) *runtime.SliceHeader { return *(**runtime.SliceHeader)(unsafe.Pointer(&p)) }
+func ptrToPtr(p uintptr) uintptr {
+	return uintptr(**(**unsafe.Pointer)(unsafe.Pointer(&p)))
+}
+func ptrToNPtr(p uintptr, ptrNum uint8) uintptr {
+	for i := uint8(0); i < ptrNum; i++ {
+		if p == 0 {
+			return 0
+		}
+		p = ptrToPtr(p)
+	}
+	return p
+}
+
+func ptrToUnsafePtr(p uintptr) unsafe.Pointer {
+	return *(*unsafe.Pointer)(unsafe.Pointer(&p))
+}
+func ptrToInterface(code *encoder.Opcode, p uintptr) interface{} {
+	return *(*interface{})(unsafe.Pointer(&emptyInterface{
+		typ: code.Type,
+		ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
+	}))
+}
+
+func appendInt(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
+	format := ctx.Option.ColorScheme.Int
+	b = append(b, format.Header...)
+	b = encoder.AppendInt(ctx, b, v, code)
+	return append(b, format.Footer...)
+}
+
+func appendUint(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
+	format := ctx.Option.ColorScheme.Uint
+	b = append(b, format.Header...)
+	b = encoder.AppendUint(ctx, b, v, code)
+	return append(b, format.Footer...)
+}
+
+func appendFloat32(ctx *encoder.RuntimeContext, b []byte, v float32) []byte {
+	format := ctx.Option.ColorScheme.Float
+	b = append(b, format.Header...)
+	b = encoder.AppendFloat32(ctx, b, v)
+	return append(b, format.Footer...)
+}
+
+func appendFloat64(ctx *encoder.RuntimeContext, b []byte, v float64) []byte {
+	format := ctx.Option.ColorScheme.Float
+	b = append(b, format.Header...)
+	b = encoder.AppendFloat64(ctx, b, v)
+	return append(b, format.Footer...)
+}
+
+func appendString(ctx *encoder.RuntimeContext, b []byte, v string) []byte {
+	format := ctx.Option.ColorScheme.String
+	b = append(b, format.Header...)
+	b = encoder.AppendString(ctx, b, v)
+	return append(b, format.Footer...)
+}
+
+func appendByteSlice(ctx *encoder.RuntimeContext, b []byte, src []byte) []byte {
+	format := ctx.Option.ColorScheme.Binary
+	b = append(b, format.Header...)
+	b = encoder.AppendByteSlice(ctx, b, src)
+	return append(b, format.Footer...)
+}
+
+func appendNumber(ctx *encoder.RuntimeContext, b []byte, n json.Number) ([]byte, error) {
+	format := ctx.Option.ColorScheme.Int
+	b = append(b, format.Header...)
+	bb, err := encoder.AppendNumber(ctx, b, n)
+	if err != nil {
+		return nil, err
+	}
+	return append(bb, format.Footer...), nil
+}
+
+func appendBool(ctx *encoder.RuntimeContext, b []byte, v bool) []byte {
+	format := ctx.Option.ColorScheme.Bool
+	b = append(b, format.Header...)
+	if v {
+		b = append(b, "true"...)
+	} else {
+		b = append(b, "false"...)
+	}
+	return append(b, format.Footer...)
+}
+
+func appendNull(ctx *encoder.RuntimeContext, b []byte) []byte {
+	format := ctx.Option.ColorScheme.Null
+	b = append(b, format.Header...)
+	b = append(b, "null"...)
+	return append(b, format.Footer...)
+}
+
+func appendComma(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, ',', '\n')
+}
+
+func appendColon(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, ':', ' ')
+}
+
+func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, code *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
+	ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(iface))
+	ifaceCodeSet, err := encoder.CompileToGetCodeSet(uintptr(unsafe.Pointer(iface.typ)))
+	if err != nil {
+		return nil, err
+	}
+
+	totalLength := uintptr(codeSet.CodeLength)
+	nextTotalLength := uintptr(ifaceCodeSet.CodeLength)
+
+	curlen := uintptr(len(ctx.Ptrs))
+	offsetNum := ptrOffset / uintptrSize
+
+	newLen := offsetNum + totalLength + nextTotalLength
+	if curlen < newLen {
+		ctx.Ptrs = append(ctx.Ptrs, make([]uintptr, newLen-curlen)...)
+	}
+	oldPtrs := ctx.Ptrs
+
+	newPtrs := ctx.Ptrs[(ptrOffset+totalLength*uintptrSize)/uintptrSize:]
+	newPtrs[0] = uintptr(iface.ptr)
+
+	ctx.Ptrs = newPtrs
+
+	oldBaseIndent := ctx.BaseIndent
+	ctx.BaseIndent = code.Indent
+	bb, err := Run(ctx, b, ifaceCodeSet)
+	if err != nil {
+		return nil, err
+	}
+	ctx.BaseIndent = oldBaseIndent
+
+	ctx.Ptrs = oldPtrs
+
+	return bb, nil
+}
+
+func appendMapKeyValue(ctx *encoder.RuntimeContext, code *encoder.Opcode, b, key, value []byte) []byte {
+	b = appendIndent(ctx, b, code.Indent+1)
+	b = append(b, key...)
+	b[len(b)-2] = ':'
+	b[len(b)-1] = ' '
+	return append(b, value...)
+}
+
+func appendMapEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	b = b[:len(b)-2]
+	b = append(b, '\n')
+	b = appendIndent(ctx, b, code.Indent)
+	return append(b, '}', ',', '\n')
+}
+
+func appendArrayHead(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	b = append(b, '[', '\n')
+	return appendIndent(ctx, b, code.Indent+1)
+}
+
+func appendArrayEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	b = b[:len(b)-2]
+	b = append(b, '\n')
+	b = appendIndent(ctx, b, code.Indent)
+	return append(b, ']', ',', '\n')
+}
+
+func appendEmptyArray(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, '[', ']', ',', '\n')
+}
+
+func appendEmptyObject(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, '{', '}', ',', '\n')
+}
+
+func appendObjectEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	last := len(b) - 1
+	b[last] = '\n'
+	b = appendIndent(ctx, b, code.Indent-1)
+	return append(b, '}', ',', '\n')
+}
+
+func appendMarshalJSON(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
+	return encoder.AppendMarshalJSONIndent(ctx, code, b, v)
+}
+
+func appendMarshalText(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
+	format := ctx.Option.ColorScheme.String
+	b = append(b, format.Header...)
+	bb, err := encoder.AppendMarshalTextIndent(ctx, code, b, v)
+	if err != nil {
+		return nil, err
+	}
+	return append(bb, format.Footer...), nil
+}
+
+func appendStructHead(_ *encoder.RuntimeContext, b []byte) []byte {
+	return append(b, '{', '\n')
+}
+
+func appendStructKey(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	b = appendIndent(ctx, b, code.Indent)
+
+	format := ctx.Option.ColorScheme.ObjectKey
+	b = append(b, format.Header...)
+	b = append(b, code.Key[:len(code.Key)-1]...)
+	b = append(b, format.Footer...)
+
+	return append(b, ':', ' ')
+}
+
+func appendStructEndSkipLast(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	last := len(b) - 1
+	if b[last-1] == '{' {
+		b[last] = '}'
+	} else {
+		if b[last] == '\n' {
+			// to remove ',' and '\n' characters
+			b = b[:len(b)-2]
+		}
+		b = append(b, '\n')
+		b = appendIndent(ctx, b, code.Indent-1)
+		b = append(b, '}')
+	}
+	return appendComma(ctx, b)
+}
+
+func restoreIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, ctxptr uintptr) {
+	ctx.BaseIndent = uint32(load(ctxptr, code.Length))
+}
+
+func storeIndent(ctxptr uintptr, code *encoder.Opcode, indent uintptr) {
+	store(ctxptr, code.End.Next.Length, indent)
+}
+
+func appendArrayElemIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	return appendIndent(ctx, b, code.Indent+1)
+}
+
+func appendMapKeyIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
+	return appendIndent(ctx, b, code.Indent)
+}
diff --git a/internal/encoder/vm_color_indent/vm.go b/internal/encoder/vm_color_indent/vm.go
new file mode 100644
index 0000000..cd619ca
--- /dev/null
+++ b/internal/encoder/vm_color_indent/vm.go
@@ -0,0 +1,4998 @@
+// Code generated by internal/cmd/generator. DO NOT EDIT!
+package vm_color_indent
+
+import (
+	"math"
+	"sort"
+	"unsafe"
+
+	"github.com/goccy/go-json/internal/encoder"
+)
+
+func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
+	recursiveLevel := 0
+	ptrOffset := uintptr(0)
+	ctxptr := ctx.Ptr()
+	var code *encoder.Opcode
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
+		code = codeSet.EscapeKeyCode
+	} else {
+		code = codeSet.NoescapeKeyCode
+	}
+
+	for {
+		switch code.Op {
+		default:
+			return nil, errUnimplementedOp(code.Op)
+		case encoder.OpPtr:
+			p := load(ctxptr, code.Idx)
+			code = code.Next
+			store(ctxptr, code.Idx, ptrToPtr(p))
+		case encoder.OpIntPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpInt:
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpUintPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpUint:
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpIntString:
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpUintString:
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpFloat32Ptr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpFloat32:
+			b = appendFloat32(ctx, b, ptrToFloat32(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpFloat64Ptr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpFloat64:
+			v := ptrToFloat64(load(ctxptr, code.Idx))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStringPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpString:
+			b = appendString(ctx, b, ptrToString(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpBoolPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpBool:
+			b = appendBool(ctx, b, ptrToBool(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpBytesPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpBytes:
+			b = appendByteSlice(ctx, b, ptrToBytes(load(ctxptr, code.Idx)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpNumberPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpNumber:
+			bb, err := appendNumber(ctx, b, ptrToNumber(load(ctxptr, code.Idx)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpInterfacePtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpInterface:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			for _, seen := range ctx.SeenPtr {
+				if p == seen {
+					return nil, errUnsupportedValue(code, p)
+				}
+			}
+			ctx.SeenPtr = append(ctx.SeenPtr, p)
+			iface := (*emptyInterface)(ptrToUnsafePtr(p))
+			if iface.ptr == nil {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			bb, err := appendInterface(ctx, codeSet, code, b, iface, ptrOffset)
+			if err != nil {
+				return nil, err
+			}
+			ctxptr = ctx.Ptr()
+			ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]
+
+			b = bb
+			code = code.Next
+		case encoder.OpMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToPtr(p))
+			fallthrough
+		case encoder.OpMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			if (code.Flags&encoder.IsNilableTypeFlags) != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToPtr(p))
+			fallthrough
+		case encoder.OpMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = append(b, `""`...)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			if (code.Flags&encoder.IsNilableTypeFlags) != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpSlicePtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpSlice:
+			p := load(ctxptr, code.Idx)
+			slice := ptrToSlice(p)
+			if p == 0 || slice.Data == nil {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.ElemIdx, 0)
+			store(ctxptr, code.Length, uintptr(slice.Len))
+			store(ctxptr, code.Idx, uintptr(slice.Data))
+			if slice.Len > 0 {
+				b = appendArrayHead(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, uintptr(slice.Data))
+			} else {
+				b = appendEmptyArray(ctx, b)
+				code = code.End.Next
+			}
+		case encoder.OpSliceElem:
+			idx := load(ctxptr, code.ElemIdx)
+			length := load(ctxptr, code.Length)
+			idx++
+			if idx < length {
+				b = appendArrayElemIndent(ctx, code, b)
+				store(ctxptr, code.ElemIdx, idx)
+				data := load(ctxptr, code.Idx)
+				size := uintptr(code.Size)
+				code = code.Next
+				store(ctxptr, code.Idx, data+idx*size)
+			} else {
+				b = appendArrayEnd(ctx, code, b)
+				code = code.End.Next
+			}
+		case encoder.OpArrayPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpArray:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			if code.Length > 0 {
+				b = appendArrayHead(ctx, code, b)
+				store(ctxptr, code.ElemIdx, 0)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				b = appendEmptyArray(ctx, b)
+				code = code.End.Next
+			}
+		case encoder.OpArrayElem:
+			idx := load(ctxptr, code.ElemIdx)
+			idx++
+			if idx < uintptr(code.Length) {
+				b = appendArrayElemIndent(ctx, code, b)
+				store(ctxptr, code.ElemIdx, idx)
+				p := load(ctxptr, code.Idx)
+				size := uintptr(code.Size)
+				code = code.Next
+				store(ctxptr, code.Idx, p+idx*size)
+			} else {
+				b = appendArrayEnd(ctx, code, b)
+				code = code.End.Next
+			}
+		case encoder.OpMapPtr:
+			p := loadNPtr(ctxptr, code.Idx, code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, p)
+			fallthrough
+		case encoder.OpMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.End.Next
+				break
+			}
+			uptr := ptrToUnsafePtr(p)
+			mlen := maplen(uptr)
+			if mlen <= 0 {
+				b = appendEmptyObject(ctx, b)
+				code = code.End.Next
+				break
+			}
+			b = appendStructHead(ctx, b)
+			iter := mapiterinit(code.Type, uptr)
+			ctx.KeepRefs = append(ctx.KeepRefs, iter)
+			store(ctxptr, code.ElemIdx, 0)
+			store(ctxptr, code.Length, uintptr(mlen))
+			store(ctxptr, code.MapIter, uintptr(iter))
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
+				b = appendMapKeyIndent(ctx, code.Next, b)
+			} else {
+				mapCtx := encoder.NewMapContext(mlen)
+				mapCtx.Pos = append(mapCtx.Pos, len(b))
+				ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(mapCtx))
+				store(ctxptr, code.End.MapPos, uintptr(unsafe.Pointer(mapCtx)))
+			}
+			key := mapiterkey(iter)
+			store(ctxptr, code.Next.Idx, uintptr(key))
+			code = code.Next
+		case encoder.OpMapKey:
+			idx := load(ctxptr, code.ElemIdx)
+			length := load(ctxptr, code.Length)
+			idx++
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
+				if idx < length {
+					b = appendMapKeyIndent(ctx, code, b)
+					store(ctxptr, code.ElemIdx, idx)
+					ptr := load(ctxptr, code.MapIter)
+					iter := ptrToUnsafePtr(ptr)
+					key := mapiterkey(iter)
+					store(ctxptr, code.Next.Idx, uintptr(key))
+					code = code.Next
+				} else {
+					b = appendObjectEnd(ctx, code, b)
+					code = code.End.Next
+				}
+			} else {
+				ptr := load(ctxptr, code.End.MapPos)
+				mapCtx := (*encoder.MapContext)(ptrToUnsafePtr(ptr))
+				mapCtx.Pos = append(mapCtx.Pos, len(b))
+				if idx < length {
+					ptr := load(ctxptr, code.MapIter)
+					iter := ptrToUnsafePtr(ptr)
+					store(ctxptr, code.ElemIdx, idx)
+					key := mapiterkey(iter)
+					store(ctxptr, code.Next.Idx, uintptr(key))
+					code = code.Next
+				} else {
+					code = code.End
+				}
+			}
+		case encoder.OpMapValue:
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
+				b = appendColon(ctx, b)
+			} else {
+				ptr := load(ctxptr, code.End.MapPos)
+				mapCtx := (*encoder.MapContext)(ptrToUnsafePtr(ptr))
+				mapCtx.Pos = append(mapCtx.Pos, len(b))
+			}
+			ptr := load(ctxptr, code.MapIter)
+			iter := ptrToUnsafePtr(ptr)
+			value := mapitervalue(iter)
+			store(ctxptr, code.Next.Idx, uintptr(value))
+			mapiternext(iter)
+			code = code.Next
+		case encoder.OpMapEnd:
+			// this operation only used by sorted map.
+			length := int(load(ctxptr, code.Length))
+			ptr := load(ctxptr, code.MapPos)
+			mapCtx := (*encoder.MapContext)(ptrToUnsafePtr(ptr))
+			pos := mapCtx.Pos
+			for i := 0; i < length; i++ {
+				startKey := pos[i*2]
+				startValue := pos[i*2+1]
+				var endValue int
+				if i+1 < length {
+					endValue = pos[i*2+2]
+				} else {
+					endValue = len(b)
+				}
+				mapCtx.Slice.Items = append(mapCtx.Slice.Items, encoder.MapItem{
+					Key:   b[startKey:startValue],
+					Value: b[startValue:endValue],
+				})
+			}
+			sort.Sort(mapCtx.Slice)
+			buf := mapCtx.Buf
+			for _, item := range mapCtx.Slice.Items {
+				buf = appendMapKeyValue(ctx, code, buf, item.Key, item.Value)
+			}
+			buf = appendMapEnd(ctx, code, buf)
+			b = b[:pos[0]]
+			b = append(b, buf...)
+			mapCtx.Buf = buf
+			encoder.ReleaseMapContext(mapCtx)
+			code = code.Next
+		case encoder.OpRecursivePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				code = code.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpRecursive:
+			ptr := load(ctxptr, code.Idx)
+			if ptr != 0 {
+				if recursiveLevel > encoder.StartDetectingCyclesAfter {
+					for _, seen := range ctx.SeenPtr {
+						if ptr == seen {
+							return nil, errUnsupportedValue(code, ptr)
+						}
+					}
+				}
+			}
+			ctx.SeenPtr = append(ctx.SeenPtr, ptr)
+			c := code.Jmp.Code
+			curlen := uintptr(len(ctx.Ptrs))
+			offsetNum := ptrOffset / uintptrSize
+			oldOffset := ptrOffset
+			ptrOffset += code.Jmp.CurLen * uintptrSize
+			oldBaseIndent := ctx.BaseIndent
+			ctx.BaseIndent += code.Indent - 1
+
+			newLen := offsetNum + code.Jmp.CurLen + code.Jmp.NextLen
+			if curlen < newLen {
+				ctx.Ptrs = append(ctx.Ptrs, make([]uintptr, newLen-curlen)...)
+			}
+			ctxptr = ctx.Ptr() + ptrOffset // assign new ctxptr
+
+			store(ctxptr, c.Idx, ptr)
+			store(ctxptr, c.End.Next.Idx, oldOffset)
+			store(ctxptr, c.End.Next.ElemIdx, uintptr(unsafe.Pointer(code.Next)))
+			storeIndent(ctxptr, c, uintptr(oldBaseIndent))
+			code = c
+			recursiveLevel++
+		case encoder.OpRecursiveEnd:
+			recursiveLevel--
+
+			// restore ctxptr
+			restoreIndent(ctx, code, ctxptr)
+			offset := load(ctxptr, code.Idx)
+			ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]
+
+			codePtr := load(ctxptr, code.ElemIdx)
+			code = (*encoder.Opcode)(ptrToUnsafePtr(codePtr))
+			ctxptr = ctx.Ptr() + offset
+			ptrOffset = offset
+		case encoder.OpStructPtrHead:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHead:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && ((code.Flags&encoder.IndirectFlags) != 0 || code.Next.Op == encoder.OpStructEnd) {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags&encoder.AnonymousKeyFlags) == 0 && len(code.Key) > 0 {
+				b = appendStructKey(ctx, code, b)
+			}
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmpty:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmpty:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && ((code.Flags&encoder.IndirectFlags) != 0 || code.Next.Op == encoder.OpStructEnd) {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			p += uintptr(code.Offset)
+			if p == 0 || (ptrToPtr(p) == 0 && (code.Flags&encoder.IsNextOpPtrTypeFlags) != 0) {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadInt:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadInt:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyInt:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyInt:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadIntString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadIntString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyIntString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyIntString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadUint:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadUint:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUint:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUint:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadUintString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadUintString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUintString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUintString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat32:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat32:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat32String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat32String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat64:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat64:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat64String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadFloat64String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat64(ctx, b, v)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64String:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64String:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v == 0 {
+				code = code.NextField
+			} else {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, ptrToString(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToString(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadStringString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadStringString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p+uintptr(code.Offset)))))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyStringString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyStringString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToString(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, v)))
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, ptrToString(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, ptrToString(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadBool:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadBool:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBool:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBool:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructPtrHeadBoolString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadBoolString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBoolString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBoolString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructPtrHeadBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendBool(ctx, b, ptrToBool(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadBytes:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadBytes:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendByteSlice(ctx, b, ptrToBytes(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBytes:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBytes:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToBytes(p + uintptr(code.Offset))
+			if len(v) == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, v)
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadNumber:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadNumber:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumber:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumber:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadNumberString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadNumberString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = append(bb, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumberString:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumberString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v == "" {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructPtrHeadArray, encoder.OpStructPtrHeadSlice:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadArray, encoder.OpStructHeadSlice:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmptyArray:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyArray:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			p += uintptr(code.Offset)
+			b = appendStructKey(ctx, code, b)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmptySlice:
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p := load(ctxptr, code.Idx)
+				if p == 0 {
+					if code.Flags&encoder.AnonymousHeadFlags == 0 {
+						b = appendNull(ctx, b)
+						b = appendComma(ctx, b)
+					}
+					code = code.End.Next
+					break
+				}
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptySlice:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			p += uintptr(code.Offset)
+			slice := ptrToSlice(p)
+			if slice.Len == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadArrayPtr, encoder.OpStructPtrHeadSlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadArrayPtr, encoder.OpStructHeadSlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.NextField
+			} else {
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadOmitEmptyArrayPtr, encoder.OpStructPtrHeadOmitEmptySlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyArrayPtr, encoder.OpStructHeadOmitEmptySlicePtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if p != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p + uintptr(code.Offset))
+			}
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructPtrHeadOmitEmptyMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMap:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p != 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				p = ptrToPtr(p + uintptr(code.Offset))
+			}
+			if maplen(ptrToUnsafePtr(p)) == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.NextField
+				break
+			}
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.NextField
+			} else {
+				if (code.Flags & encoder.IndirectFlags) != 0 {
+					p = ptrToNPtr(p, code.PtrNum)
+				}
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadOmitEmptyMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMapPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p == 0 {
+				code = code.NextField
+				break
+			}
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p == 0 {
+				code = code.NextField
+			} else {
+				if (code.Flags & encoder.IndirectFlags) != 0 {
+					p = ptrToNPtr(p, code.PtrNum)
+				}
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructPtrHeadMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadMarshalJSON {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadOmitEmptyMarshalJSON {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			iface := ptrToInterface(code, p)
+			if (code.Flags&encoder.NilCheckFlags) != 0 && encoder.IsNilForMarshaler(iface) {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalJSON(ctx, code, b, iface)
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadMarshalText {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			}
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalText:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				if (code.Flags&encoder.IndirectFlags) != 0 || code.Op == encoder.OpStructPtrHeadOmitEmptyMarshalText {
+					p = ptrToPtr(p + uintptr(code.Offset))
+				}
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructPtrHeadMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			b = appendStructKey(ctx, code, b)
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructPtrHeadOmitEmptyMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			store(ctxptr, code.Idx, ptrToNPtr(p, code.PtrNum))
+			fallthrough
+		case encoder.OpStructHeadOmitEmptyMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			if p == 0 && (code.Flags&encoder.IndirectFlags) != 0 {
+				if code.Flags&encoder.AnonymousHeadFlags == 0 {
+					b = appendNull(ctx, b)
+					b = appendComma(ctx, b)
+				}
+				code = code.End.Next
+				break
+			}
+			if (code.Flags & encoder.IndirectFlags) != 0 {
+				p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			}
+			if code.Flags&encoder.AnonymousHeadFlags == 0 {
+				b = appendStructHead(ctx, b)
+			}
+			if p == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+				b = appendComma(ctx, b)
+				code = code.Next
+			}
+		case encoder.OpStructField:
+			if code.Flags&encoder.AnonymousKeyFlags == 0 {
+				b = appendStructKey(ctx, code, b)
+			}
+			p := load(ctxptr, code.Idx) + uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmpty:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if ptrToPtr(p) == 0 && (code.Flags&encoder.IsNextOpPtrTypeFlags) != 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructFieldInt:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyInt:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldIntString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyIntString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldIntPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldIntPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUint:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUint:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, u64, code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUintString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUintString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUintPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldUintPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32String:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat64(ctx, b, v)
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendComma(ctx, b)
+				code = code.Next
+				break
+			}
+			v := ptrToFloat64(p)
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, ptrToString(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldStringString:
+			p := load(ctxptr, code.Idx)
+			s := ptrToString(p + uintptr(code.Offset))
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, string(appendString(ctx, []byte{}, s)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyStringString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, v)))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldStringPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, ptrToString(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, ptrToString(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldStringPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBool:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBool:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBoolString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBoolString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, v)
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBoolPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendBool(ctx, b, ptrToBool(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBytes:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendByteSlice(ctx, b, ptrToBytes(p+uintptr(code.Offset)))
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBytes:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBytes(p + uintptr(code.Offset))
+			if len(v) > 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, v)
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldBytesPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumber:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumber:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumberString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = append(bb, '"')
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumberString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumberPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			b = appendStructKey(ctx, code, b)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendComma(ctx, b)
+			}
+			code = code.Next
+		case encoder.OpStructFieldMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalJSON:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				code = code.NextField
+				break
+			}
+			iface := ptrToInterface(code, p)
+			if (code.Flags&encoder.NilCheckFlags) != 0 && encoder.IsNilForMarshaler(iface) {
+				code = code.NextField
+				break
+			}
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendMarshalJSON(ctx, code, b, iface)
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructFieldMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalJSONPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalJSON(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldMarshalText:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalText:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if (code.Flags & encoder.IsNilableTypeFlags) != 0 {
+				p = ptrToPtr(p)
+			}
+			if p == 0 && (code.Flags&encoder.NilCheckFlags) != 0 {
+				code = code.NextField
+				break
+			}
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+			if err != nil {
+				return nil, err
+			}
+			b = appendComma(ctx, bb)
+			code = code.Next
+		case encoder.OpStructFieldMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendComma(ctx, b)
+			code = code.Next
+		case encoder.OpStructFieldOmitEmptyMarshalTextPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendMarshalText(ctx, code, b, ptrToInterface(code, p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendComma(ctx, bb)
+			}
+			code = code.Next
+		case encoder.OpStructFieldArray:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyArray:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldArrayPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyArrayPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructFieldSlice:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptySlice:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			slice := ptrToSlice(p)
+			if slice.Len == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructFieldSlicePtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptySlicePtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructFieldMap:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyMap:
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p == 0 || maplen(ptrToUnsafePtr(p)) == 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructFieldMapPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p != 0 {
+				p = ptrToNPtr(p, code.PtrNum)
+			}
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyMapPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToPtr(p + uintptr(code.Offset))
+			if p != 0 {
+				p = ptrToNPtr(p, code.PtrNum)
+			}
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			} else {
+				code = code.NextField
+			}
+		case encoder.OpStructFieldStruct:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			code = code.Next
+			store(ctxptr, code.Idx, p)
+		case encoder.OpStructFieldOmitEmptyStruct:
+			p := load(ctxptr, code.Idx)
+			p += uintptr(code.Offset)
+			if ptrToPtr(p) == 0 && (code.Flags&encoder.IsNextOpPtrTypeFlags) != 0 {
+				code = code.NextField
+			} else {
+				b = appendStructKey(ctx, code, b)
+				code = code.Next
+				store(ctxptr, code.Idx, p)
+			}
+		case encoder.OpStructAnonymousEnd:
+			code = code.Next
+		case encoder.OpStructEnd:
+			b = appendStructEndSkipLast(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndInt:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyInt:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, u64, code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndIntString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyIntString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndIntPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyIntPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndIntPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyIntPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendInt(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUint:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUint:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, u64, code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUintString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUintString:
+			p := load(ctxptr, code.Idx)
+			u64 := ptrToUint64(p + uintptr(code.Offset))
+			v := u64 & ((1 << code.NumBitSize) - 1)
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, u64, code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUintPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUintPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndUintPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyUintPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendUint(ctx, b, ptrToUint64(p), code)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32String:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat32(ctx, b, ptrToFloat32(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat32(p + uintptr(code.Offset))
+			if v != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32Ptr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat32PtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat32PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat32(ctx, b, ptrToFloat32(p))
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = appendFloat64(ctx, b, v)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = appendFloat64(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendFloat64(ctx, b, v)
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64String:
+			p := load(ctxptr, code.Idx)
+			v := ptrToFloat64(p + uintptr(code.Offset))
+			if v != 0 {
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64Ptr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+				b = appendStructEnd(ctx, code, b)
+				code = code.Next
+				break
+			}
+			v := ptrToFloat64(p)
+			if math.IsInf(v, 0) || math.IsNaN(v) {
+				return nil, errUnsupportedFloat(v)
+			}
+			b = appendFloat64(ctx, b, v)
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64Ptr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndFloat64PtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyFloat64PtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				v := ptrToFloat64(p)
+				if math.IsInf(v, 0) || math.IsNaN(v) {
+					return nil, errUnsupportedFloat(v)
+				}
+				b = append(b, '"')
+				b = appendFloat64(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendString(ctx, b, ptrToString(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndStringString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			s := ptrToString(p + uintptr(code.Offset))
+			b = appendString(ctx, b, string(appendString(ctx, []byte{}, s)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyStringString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToString(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, v)))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndStringPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, ptrToString(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyStringPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, ptrToString(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndStringPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyStringPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendString(ctx, b, string(appendString(ctx, []byte{}, ptrToString(p))))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBool:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBool:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBoolString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			b = appendBool(ctx, b, ptrToBool(p+uintptr(code.Offset)))
+			b = append(b, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBoolString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBool(p + uintptr(code.Offset))
+			if v {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, v)
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBoolPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendBool(ctx, b, ptrToBool(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBoolPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBoolPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBoolPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				b = appendBool(ctx, b, ptrToBool(p))
+				b = append(b, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBytes:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = appendByteSlice(ctx, b, ptrToBytes(p+uintptr(code.Offset)))
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBytes:
+			p := load(ctxptr, code.Idx)
+			v := ptrToBytes(p + uintptr(code.Offset))
+			if len(v) > 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, v)
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndBytesPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyBytesPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = appendByteSlice(ctx, b, ptrToBytes(p))
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumber:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = appendStructEnd(ctx, code, bb)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumber:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = appendStructEnd(ctx, code, bb)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumberString:
+			p := load(ctxptr, code.Idx)
+			b = appendStructKey(ctx, code, b)
+			b = append(b, '"')
+			bb, err := appendNumber(ctx, b, ptrToNumber(p+uintptr(code.Offset)))
+			if err != nil {
+				return nil, err
+			}
+			b = append(bb, '"')
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumberString:
+			p := load(ctxptr, code.Idx)
+			v := ptrToNumber(p + uintptr(code.Offset))
+			if v != "" {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, v)
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumberPtr:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = bb
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumberPtr:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = appendStructEnd(ctx, code, bb)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpStructEndNumberPtrString:
+			b = appendStructKey(ctx, code, b)
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p == 0 {
+				b = appendNull(ctx, b)
+			} else {
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+			}
+			b = appendStructEnd(ctx, code, b)
+			code = code.Next
+		case encoder.OpStructEndOmitEmptyNumberPtrString:
+			p := load(ctxptr, code.Idx)
+			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
+			if p != 0 {
+				b = appendStructKey(ctx, code, b)
+				b = append(b, '"')
+				bb, err := appendNumber(ctx, b, ptrToNumber(p))
+				if err != nil {
+					return nil, err
+				}
+				b = append(bb, '"')
+				b = appendStructEnd(ctx, code, b)
+			} else {
+				b = appendStructEndSkipLast(ctx, code, b)
+			}
+			code = code.Next
+		case encoder.OpEnd:
+			goto END
+		}
+	}
+END:
+	return b, nil
+}
diff --git a/internal/encoder/vm_indent/debug_vm.go b/internal/encoder/vm_indent/debug_vm.go
index b3822f5..4cfd17a 100644
--- a/internal/encoder/vm_indent/debug_vm.go
+++ b/internal/encoder/vm_indent/debug_vm.go
@@ -8,7 +8,7 @@ import (
 
 func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	var code *encoder.Opcode
-	if ctx.Option.HTMLEscape {
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
 		code = codeSet.EscapeKeyCode
 	} else {
 		code = codeSet.NoescapeKeyCode
diff --git a/internal/encoder/vm_indent/hack.go b/internal/encoder/vm_indent/hack.go
index bddd9e3..9e245bf 100644
--- a/internal/encoder/vm_indent/hack.go
+++ b/internal/encoder/vm_indent/hack.go
@@ -1,6 +1,9 @@
 package vm_indent
 
-// HACK: compile order
-// `vm`, `vm_indent` packages uses a lot of memory to compile,
-// so forcibly make dependencies and avoid compiling in concurrent.
-// dependency order: vm => vm_indent
+import (
+	// HACK: compile order
+	// `vm`, `vm_indent`, `vm_color`, `vm_color_indent` packages uses a lot of memory to compile,
+	// so forcibly make dependencies and avoid compiling in concurrent.
+	// dependency order: vm => vm_indent => vm_color => vm_color_indent
+	_ "github.com/goccy/go-json/internal/encoder/vm_color"
+)
diff --git a/internal/encoder/vm_indent/vm.go b/internal/encoder/vm_indent/vm.go
index b9cd1d2..a4eb235 100644
--- a/internal/encoder/vm_indent/vm.go
+++ b/internal/encoder/vm_indent/vm.go
@@ -14,7 +14,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
 	var code *encoder.Opcode
-	if ctx.Option.HTMLEscape {
+	if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
 		code = codeSet.EscapeKeyCode
 	} else {
 		code = codeSet.NoescapeKeyCode
@@ -39,7 +39,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.Idx, p)
 			fallthrough
 		case encoder.OpInt:
-			b = appendInt(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpUintPtr:
@@ -53,18 +53,18 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.Idx, p)
 			fallthrough
 		case encoder.OpUint:
-			b = appendUint(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpIntString:
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendInt(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpUintString:
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(load(ctxptr, code.Idx)), code)
+			b = appendUint(ctx, b, ptrToUint64(load(ctxptr, code.Idx)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -370,7 +370,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				b = appendMapKeyIndent(ctx, code.Next, b)
 			} else {
 				mapCtx := encoder.NewMapContext(mlen)
@@ -385,7 +385,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -414,7 +414,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				}
 			}
 		case encoder.OpMapValue:
-			if ctx.Option.UnorderedMap {
+			if (ctx.Option.Flag & encoder.UnorderedMapOption) != 0 {
 				b = appendColon(ctx, b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
@@ -602,7 +602,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendStructHead(ctx, b)
 			}
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructPtrHeadOmitEmptyInt:
@@ -638,7 +638,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				code = code.NextField
 			} else {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 				code = code.Next
 			}
@@ -671,7 +671,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -709,7 +709,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			} else {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 				code = code.Next
@@ -746,7 +746,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -780,7 +780,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -817,7 +817,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -853,7 +853,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -886,7 +886,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendStructHead(ctx, b)
 			}
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructPtrHeadOmitEmptyUint:
@@ -922,7 +922,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				code = code.NextField
 			} else {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 				code = code.Next
 			}
@@ -955,7 +955,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -993,7 +993,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			} else {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 				code = code.Next
@@ -1030,7 +1030,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -1064,7 +1064,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			}
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -1101,7 +1101,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -1137,7 +1137,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3413,7 +3413,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructFieldInt:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructFieldOmitEmptyInt:
@@ -3422,7 +3422,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3430,7 +3430,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3441,7 +3441,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3453,7 +3453,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3462,7 +3462,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3474,7 +3474,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -3485,7 +3485,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3493,7 +3493,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructFieldUint:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendComma(ctx, b)
 			code = code.Next
 		case encoder.OpStructFieldOmitEmptyUint:
@@ -3502,7 +3502,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3510,7 +3510,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3521,7 +3521,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -3533,7 +3533,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendComma(ctx, b)
 			code = code.Next
@@ -3542,7 +3542,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendComma(ctx, b)
 			}
 			code = code.Next
@@ -3554,7 +3554,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendComma(ctx, b)
@@ -3565,7 +3565,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendComma(ctx, b)
 			}
@@ -4297,7 +4297,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructEndInt:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
 		case encoder.OpStructEndOmitEmptyInt:
@@ -4306,7 +4306,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4316,7 +4316,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendInt(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendInt(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4327,7 +4327,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, u64, code)
+				b = appendInt(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4341,7 +4341,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4350,7 +4350,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4364,7 +4364,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendStructEnd(ctx, code, b)
@@ -4375,7 +4375,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendInt(b, ptrToUint64(p), code)
+				b = appendInt(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4385,7 +4385,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 		case encoder.OpStructEndUint:
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
 		case encoder.OpStructEndOmitEmptyUint:
@@ -4394,7 +4394,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			v := u64 & ((1 << code.NumBitSize) - 1)
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4404,7 +4404,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p := load(ctxptr, code.Idx)
 			b = appendStructKey(ctx, code, b)
 			b = append(b, '"')
-			b = appendUint(b, ptrToUint64(p+uintptr(code.Offset)), code)
+			b = appendUint(ctx, b, ptrToUint64(p+uintptr(code.Offset)), code)
 			b = append(b, '"')
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4415,7 +4415,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if v != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, u64, code)
+				b = appendUint(ctx, b, u64, code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
@@ -4429,7 +4429,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p == 0 {
 				b = appendNull(ctx, b)
 			} else {
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 			}
 			b = appendStructEnd(ctx, code, b)
 			code = code.Next
@@ -4438,7 +4438,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			p = ptrToNPtr(p+uintptr(code.Offset), code.PtrNum)
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = appendStructEnd(ctx, code, b)
 			} else {
 				b = appendStructEndSkipLast(ctx, code, b)
@@ -4452,7 +4452,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 				b = appendNull(ctx, b)
 			} else {
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 			}
 			b = appendStructEnd(ctx, code, b)
@@ -4463,7 +4463,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
 			if p != 0 {
 				b = appendStructKey(ctx, code, b)
 				b = append(b, '"')
-				b = appendUint(b, ptrToUint64(p), code)
+				b = appendUint(ctx, b, ptrToUint64(p), code)
 				b = append(b, '"')
 				b = appendStructEnd(ctx, code, b)
 			} else {
diff --git a/option.go b/option.go
index cd2bdfe..444ffd0 100644
--- a/option.go
+++ b/option.go
@@ -10,12 +10,19 @@ type EncodeOptionFunc func(*EncodeOption)
 
 func UnorderedMap() EncodeOptionFunc {
 	return func(opt *EncodeOption) {
-		opt.UnorderedMap = true
+		opt.Flag |= encoder.UnorderedMapOption
 	}
 }
 
 func Debug() EncodeOptionFunc {
 	return func(opt *EncodeOption) {
-		opt.Debug = true
+		opt.Flag |= encoder.DebugOption
+	}
+}
+
+func Colorize(scheme *ColorScheme) EncodeOptionFunc {
+	return func(opt *EncodeOption) {
+		opt.Flag |= encoder.ColorizeOption
+		opt.ColorScheme = scheme
 	}
 }