Fix any bugs of encoder

- fix some issues ( #104 #118 #144 #147 )
- fix recursive call operation
- use json.Number of encoding/json
- fix encoding of MarshalJSON and MarshalText
- fix pointer operation
- remove 'anonymous' and 'only' operation
- add test cases for array/slice/map/marshaler
This commit is contained in:
Masaaki Goshima 2021-03-11 19:29:35 +09:00
parent 116df927e2
commit 4167aefe08
27 changed files with 23280 additions and 15654 deletions

View File

@ -15,11 +15,8 @@ type opType struct {
Op string
Code string
HeadToPtrHead func() string
HeadToNPtrHead func() string
HeadToAnonymousHead func() string
HeadToOmitEmptyHead func() string
HeadToStringTagHead func() string
HeadToOnlyHead func() string
PtrHeadToHead func() string
FieldToEnd func() string
FieldToOmitEmptyField func() string
@ -30,14 +27,6 @@ func (t opType) IsHeadToPtrHead() bool {
return t.Op != t.HeadToPtrHead()
}
func (t opType) IsHeadToNPtrHead() bool {
return t.Op != t.HeadToNPtrHead()
}
func (t opType) IsHeadToAnonymousHead() bool {
return t.Op != t.HeadToAnonymousHead()
}
func (t opType) IsHeadToOmitEmptyHead() bool {
return t.Op != t.HeadToOmitEmptyHead()
}
@ -50,10 +39,6 @@ func (t opType) IsPtrHeadToHead() bool {
return t.Op != t.PtrHeadToHead()
}
func (t opType) IsHeadToOnlyHead() bool {
return t.Op != t.HeadToOnlyHead()
}
func (t opType) IsFieldToEnd() bool {
return t.Op != t.FieldToEnd()
}
@ -71,11 +56,8 @@ func createOpType(op, code string) opType {
Op: op,
Code: code,
HeadToPtrHead: func() string { return op },
HeadToNPtrHead: func() string { return op },
HeadToAnonymousHead: func() string { return op },
HeadToOmitEmptyHead: func() string { return op },
HeadToStringTagHead: func() string { return op },
HeadToOnlyHead: func() string { return op },
PtrHeadToHead: func() string { return op },
FieldToEnd: func() string { return op },
FieldToOmitEmptyField: func() string { return op },
@ -127,19 +109,19 @@ func (t opType) codeType() codeType {
}
return codeStructField
}
if strings.Contains(t.String(), "ArrayHead") {
if t.String() == "Array" || t.String() == "ArrayPtr" {
return codeArrayHead
}
if strings.Contains(t.String(), "ArrayElem") {
return codeArrayElem
}
if strings.Contains(t.String(), "SliceHead") {
if t.String() == "Slice" || t.String() == "SlicePtr" {
return codeSliceHead
}
if strings.Contains(t.String(), "SliceElem") {
return codeSliceElem
}
if strings.Contains(t.String(), "MapHead") {
if t.String() == "Map" || t.String() == "MapPtr" {
return codeMapHead
}
if strings.Contains(t.String(), "MapKey") {
@ -159,9 +141,6 @@ func (t opType) headToPtrHead() opType {
if strings.Index(t.String(), "PtrHead") > 0 {
return t
}
if strings.Index(t.String(), "PtrAnonymousHead") > 0 {
return t
}
idx := strings.Index(t.String(), "Field")
if idx == -1 {
@ -169,44 +148,15 @@ func (t opType) headToPtrHead() opType {
}
suffix := "Ptr"+t.String()[idx+len("Field"):]
const toPtrOffset = 12
const toPtrOffset = 3
if strings.Contains(opType(int(t) + toPtrOffset).String(), suffix) {
return opType(int(t) + toPtrOffset)
}
return t
}
func (t opType) headToNPtrHead() opType {
if strings.Index(t.String(), "PtrHead") > 0 {
return t
}
if strings.Index(t.String(), "PtrAnonymousHead") > 0 {
return t
}
idx := strings.Index(t.String(), "Field")
if idx == -1 {
return t
}
suffix := "NPtr"+t.String()[idx+len("Field"):]
const toPtrOffset = 24
if strings.Contains(opType(int(t) + toPtrOffset).String(), suffix) {
return opType(int(t) + toPtrOffset)
}
return t
}
func (t opType) headToAnonymousHead() opType {
const toAnonymousOffset = 6
if strings.Contains(opType(int(t) + toAnonymousOffset).String(), "Anonymous") {
return opType(int(t) + toAnonymousOffset)
}
return t
}
func (t opType) headToOmitEmptyHead() opType {
const toOmitEmptyOffset = 2
const toOmitEmptyOffset = 1
if strings.Contains(opType(int(t) + toOmitEmptyOffset).String(), "OmitEmpty") {
return opType(int(t) + toOmitEmptyOffset)
}
@ -215,25 +165,13 @@ func (t opType) headToOmitEmptyHead() opType {
}
func (t opType) headToStringTagHead() opType {
const toStringTagOffset = 4
const toStringTagOffset = 2
if strings.Contains(opType(int(t) + toStringTagOffset).String(), "StringTag") {
return opType(int(t) + toStringTagOffset)
}
return t
}
func (t opType) headToOnlyHead() opType {
if strings.HasSuffix(t.String(), "Head") || strings.HasSuffix(t.String(), "HeadOmitEmpty") || strings.HasSuffix(t.String(), "HeadStringTag") {
return t
}
const toOnlyOffset = 1
if opType(int(t) + toOnlyOffset).String() == t.String() + "Only" {
return opType(int(t) + toOnlyOffset)
}
return t
}
func (t opType) ptrHeadToHead() opType {
idx := strings.Index(t.String(), "Ptr")
if idx == -1 {
@ -241,7 +179,7 @@ func (t opType) ptrHeadToHead() opType {
}
suffix := t.String()[idx+len("Ptr"):]
const toPtrOffset = 12
const toPtrOffset = 3
if strings.Contains(opType(int(t) - toPtrOffset).String(), suffix) {
return opType(int(t) - toPtrOffset)
}
@ -295,11 +233,11 @@ func (t opType) fieldToStringTagField() opType {
"StructEnd",
}
primitiveTypes := []string{
"int", "uint", "float32", "float64", "bool", "string", "bytes",
"array", "map", "mapLoad", "slice", "struct", "MarshalJSON", "MarshalText", "recursive",
"int", "uint", "float32", "float64", "bool", "string", "bytes", "number",
"array", "map", "slice", "struct", "MarshalJSON", "MarshalText", "recursive",
"intString", "uintString",
"intPtr", "uintPtr", "float32Ptr", "float64Ptr", "boolPtr", "stringPtr", "bytesPtr",
"intNPtr", "uintNPtr", "float32NPtr", "float64NPtr", "boolNPtr", "stringNPtr", "bytesNPtr",
"intPtr", "uintPtr", "float32Ptr", "float64Ptr", "boolPtr", "stringPtr", "bytesPtr", "numberPtr",
"arrayPtr", "mapPtr", "slicePtr", "marshalJSONPtr", "marshalTextPtr", "interfacePtr", "recursivePtr",
}
primitiveTypesUpper := []string{}
for _, typ := range primitiveTypes {
@ -309,17 +247,12 @@ func (t opType) fieldToStringTagField() opType {
createOpType("End", "Op"),
createOpType("Interface", "Op"),
createOpType("Ptr", "Op"),
createOpType("NPtr", "Op"),
createOpType("SliceHead", "SliceHead"),
createOpType("RootSliceHead", "SliceHead"),
createOpType("SliceElem", "SliceElem"),
createOpType("RootSliceElem", "SliceElem"),
createOpType("SliceEnd", "Op"),
createOpType("ArrayHead", "ArrayHead"),
createOpType("ArrayElem", "ArrayElem"),
createOpType("ArrayEnd", "Op"),
createOpType("MapHead", "MapHead"),
createOpType("MapHeadLoad", "MapHead"),
createOpType("MapKey", "MapKey"),
createOpType("MapValue", "MapValue"),
createOpType("MapEnd", "Op"),
@ -331,94 +264,47 @@ func (t opType) fieldToStringTagField() opType {
opTypes = append(opTypes, createOpType(typ, "Op"))
}
for _, typ := range append(primitiveTypesUpper, "") {
for _, ptrOrNot := range []string{"", "Ptr", "NPtr"} {
for _, headType := range []string{"", "Anonymous"} {
for _, ptrOrNot := range []string{"", "Ptr"} {
for _, opt := range []string{"", "OmitEmpty", "StringTag"} {
for _, onlyOrNot := range []string{"", "Only"} {
ptrOrNot := ptrOrNot
headType := headType
opt := opt
typ := typ
onlyOrNot := onlyOrNot
op := fmt.Sprintf(
"StructField%s%sHead%s%s%s",
"StructField%sHead%s%s",
ptrOrNot,
headType,
opt,
typ,
onlyOrNot,
)
opTypes = append(opTypes, opType{
Op: op,
Code: "StructField",
HeadToPtrHead: func() string {
return fmt.Sprintf(
"StructFieldPtr%sHead%s%s%s",
headType,
"StructFieldPtrHead%s%s",
opt,
typ,
onlyOrNot,
)
},
HeadToNPtrHead: func() string {
return fmt.Sprintf(
"StructFieldNPtr%sHead%s%s%s",
headType,
opt,
typ,
onlyOrNot,
)
},
HeadToAnonymousHead: func() string {
return fmt.Sprintf(
"StructField%sAnonymousHead%s%s%s",
ptrOrNot,
opt,
typ,
onlyOrNot,
)
},
HeadToOmitEmptyHead: func() string {
return fmt.Sprintf(
"StructField%s%sHeadOmitEmpty%s%s",
"StructField%sHeadOmitEmpty%s",
ptrOrNot,
headType,
typ,
onlyOrNot,
)
},
HeadToStringTagHead: func() string {
return fmt.Sprintf(
"StructField%s%sHeadStringTag%s%s",
"StructField%sHeadStringTag%s",
ptrOrNot,
headType,
typ,
onlyOrNot,
)
},
HeadToOnlyHead: func() string {
switch typ {
case "", "Array", "Map", "MapLoad", "Slice",
"Struct", "Recursive", "MarshalJSON", "MarshalText",
"IntString", "UintString":
return op
}
return fmt.Sprintf(
"StructField%s%sHead%s%sOnly",
ptrOrNot,
headType,
opt,
typ,
)
},
PtrHeadToHead: func() string {
return fmt.Sprintf(
"StructField%sHead%s%s%s",
headType,
"StructFieldHead%s%s",
opt,
typ,
onlyOrNot,
)
},
FieldToEnd: func() string { return op },
@ -428,8 +314,6 @@ func (t opType) fieldToStringTagField() opType {
}
}
}
}
}
for _, typ := range append(primitiveTypesUpper, "") {
for _, opt := range []string{"", "OmitEmpty", "StringTag"} {
opt := opt
@ -444,15 +328,12 @@ func (t opType) fieldToStringTagField() opType {
Op: op,
Code: "StructField",
HeadToPtrHead: func() string { return op },
HeadToNPtrHead: func() string { return op },
HeadToAnonymousHead: func() string { return op },
HeadToOmitEmptyHead: func() string { return op },
HeadToStringTagHead: func() string { return op },
HeadToOnlyHead: func() string { return op },
PtrHeadToHead: func() string { return op },
FieldToEnd: func() string {
switch typ {
case "", "Array", "Map", "MapLoad", "Slice", "Struct", "Recursive":
case "", "Array", "Map", "Slice", "Struct", "Recursive":
return op
}
return fmt.Sprintf(
@ -490,11 +371,8 @@ func (t opType) fieldToStringTagField() opType {
Op: op,
Code: "StructEnd",
HeadToPtrHead: func() string { return op },
HeadToNPtrHead: func() string { return op },
HeadToAnonymousHead: func() string { return op },
HeadToOmitEmptyHead: func() string { return op },
HeadToStringTagHead: func() string { return op },
HeadToOnlyHead: func() string { return op },
PtrHeadToHead: func() string { return op },
FieldToEnd: func() string { return op },
FieldToOmitEmptyField: func() string { return op },

View File

@ -5,6 +5,9 @@ import (
)
func compact(dst *bytes.Buffer, src []byte, escape bool) error {
if len(src) == 0 {
return errUnexpectedEndOfJSON("", 0)
}
length := len(src)
for cursor := 0; cursor < length; cursor++ {
c := src[cursor]

1859
cover_array_test.go Normal file

File diff suppressed because it is too large Load Diff

View File

@ -1774,11 +1774,11 @@ func TestCoverBool(t *testing.T) {
enc.SetIndent("", " ")
}
if err := enc.Encode(test.data); err != nil {
t.Fatalf("%s(htmlEscape:%T): %+v: %s", test.name, htmlEscape, test.data, err)
t.Fatalf("%s(htmlEscape:%v,indent:%v): %+v: %s", test.name, htmlEscape, indent, test.data, err)
}
stdresult := encodeByEncodingJSON(test.data, indent, htmlEscape)
if buf.String() != stdresult {
t.Errorf("%s(htmlEscape:%T): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, stdresult, buf.String())
t.Errorf("%s(htmlEscape:%v,indent:%v): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, indent, stdresult, buf.String())
}
}
}

View File

@ -19,6 +19,9 @@ func float32ptr(v float32) *float32 { return &v }
func float64ptr(v float64) *float64 { return &v }
func stringptr(v string) *string { return &v }
func boolptr(v bool) *bool { return &v }
func sliceptr(v []int) *[]int { return &v }
func arrayptr(v [2]int) *[2]int { return &v }
func mapptr(v map[string]int) *map[string]int { return &v }
func encodeByEncodingJSON(data interface{}, indent, escape bool) string {
var buf bytes.Buffer

View File

@ -408,6 +408,29 @@ func TestCoverInt16(t *testing.T) {
}{A: nil, B: nil},
},
// PtrHeadInt16NilMultiFields
{
name: "PtrHeadInt16NilMultiFields",
data: (*struct {
A int16 `json:"a"`
B int16 `json:"b"`
})(nil),
},
{
name: "PtrHeadInt16NilMultiFieldsOmitEmpty",
data: (*struct {
A int16 `json:"a,omitempty"`
B int16 `json:"b,omitempty"`
})(nil),
},
{
name: "PtrHeadInt16NilMultiFieldsString",
data: (*struct {
A int16 `json:"a,string"`
B int16 `json:"b,string"`
})(nil),
},
// PtrHeadInt16NilMultiFields
{
name: "PtrHeadInt16NilMultiFields",

View File

@ -1774,11 +1774,11 @@ func TestCoverInt(t *testing.T) {
enc.SetIndent("", " ")
}
if err := enc.Encode(test.data); err != nil {
t.Fatalf("%s(htmlEscape:%T): %+v: %s", test.name, htmlEscape, test.data, err)
t.Fatalf("%s(htmlEscape:%v,indent:%v): %+v: %s", test.name, htmlEscape, indent, test.data, err)
}
stdresult := encodeByEncodingJSON(test.data, indent, htmlEscape)
if buf.String() != stdresult {
t.Errorf("%s(htmlEscape:%T): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, stdresult, buf.String())
t.Errorf("%s(htmlEscape:%v,indent:%v): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, indent, stdresult, buf.String())
}
}
}

1859
cover_map_test.go Normal file

File diff suppressed because it is too large Load Diff

3546
cover_marshal_json_test.go Normal file

File diff suppressed because it is too large Load Diff

3546
cover_marshal_text_test.go Normal file

File diff suppressed because it is too large Load Diff

1859
cover_slice_test.go Normal file

File diff suppressed because it is too large Load Diff

View File

@ -1793,11 +1793,11 @@ func TestCoverString(t *testing.T) {
enc.SetIndent("", " ")
}
if err := enc.Encode(test.data); err != nil {
t.Fatalf("%s(htmlEscape:%T): %v: %s", test.name, htmlEscape, test.data, err)
t.Fatalf("%s(htmlEscape:%v,indent:%v): %v: %s", test.name, htmlEscape, indent, test.data, err)
}
stdresult := encodeByEncodingJSON(test.data, indent, htmlEscape)
if buf.String() != stdresult {
t.Errorf("%s(htmlEscape:%T): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, stdresult, buf.String())
t.Errorf("%s(htmlEscape:%v,indent:%v): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, indent, stdresult, buf.String())
}
}
}

View File

@ -1774,11 +1774,11 @@ func TestCoverUint16(t *testing.T) {
enc.SetIndent("", " ")
}
if err := enc.Encode(test.data); err != nil {
t.Fatalf("%s(htmlEscape:%T): %+v: %s", test.name, htmlEscape, test.data, err)
t.Fatalf("%s(htmlEscape:%v,indent:%v): %+v: %s", test.name, htmlEscape, indent, test.data, err)
}
stdresult := encodeByEncodingJSON(test.data, indent, htmlEscape)
if buf.String() != stdresult {
t.Errorf("%s(htmlEscape:%T): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, stdresult, buf.String())
t.Errorf("%s(htmlEscape:%v,indent:%v): doesn't compatible with encoding/json. expected %q but got %q", test.name, htmlEscape, indent, stdresult, buf.String())
}
}
}

View File

@ -80,7 +80,7 @@ func decodeCompile(typ *rtype, structName, fieldName string, structTypeToDecoder
case reflect.Uint64:
return decodeCompileUint64(typ, structName, fieldName)
case reflect.String:
return decodeCompileString(structName, fieldName)
return decodeCompileString(typ, structName, fieldName)
case reflect.Bool:
return decodeCompileBool(structName, fieldName)
case reflect.Float32:
@ -203,7 +203,12 @@ func decodeCompileFloat64(structName, fieldName string) (decoder, error) {
}), nil
}
func decodeCompileString(structName, fieldName string) (decoder, error) {
func decodeCompileString(typ *rtype, structName, fieldName string) (decoder, error) {
if typ == type2rtype(jsonNumberType) {
return newNumberDecoder(structName, fieldName, func(p unsafe.Pointer, v Number) {
*(*Number)(p) = v
}), nil
}
return newStringDecoder(structName, fieldName), nil
}

View File

@ -1,11 +1,12 @@
package json
import (
"strconv"
"unsafe"
)
type numberDecoder struct {
*floatDecoder
stringDecoder *stringDecoder
op func(unsafe.Pointer, Number)
structName string
fieldName string
@ -13,7 +14,7 @@ type numberDecoder struct {
func newNumberDecoder(structName, fieldName string, op func(unsafe.Pointer, Number)) *numberDecoder {
return &numberDecoder{
floatDecoder: newFloatDecoder(structName, fieldName, nil),
stringDecoder: newStringDecoder(structName, fieldName),
op: op,
structName: structName,
fieldName: fieldName,
@ -21,22 +22,97 @@ func newNumberDecoder(structName, fieldName string, op func(unsafe.Pointer, Numb
}
func (d *numberDecoder) decodeStream(s *stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.floatDecoder.decodeStreamByte(s)
bytes, err := d.decodeStreamByte(s)
if err != nil {
return err
}
if _, err := strconv.ParseFloat(*(*string)(unsafe.Pointer(&bytes)), 64); err != nil {
return &SyntaxError{msg: err.Error(), Offset: s.totalOffset()}
}
d.op(p, Number(string(bytes)))
s.reset()
return nil
}
func (d *numberDecoder) decode(buf []byte, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.floatDecoder.decodeByte(buf, cursor)
bytes, c, err := d.decodeByte(buf, cursor)
if err != nil {
return 0, err
}
if _, err := strconv.ParseFloat(*(*string)(unsafe.Pointer(&bytes)), 64); err != nil {
return 0, &SyntaxError{msg: err.Error(), Offset: c}
}
cursor = c
s := *(*string)(unsafe.Pointer(&bytes))
d.op(p, Number(s))
return cursor, nil
}
func (d *numberDecoder) decodeStreamByte(s *stream) ([]byte, error) {
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return floatBytes(s), nil
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case '"':
return d.stringDecoder.decodeStreamByte(s)
case nul:
if s.read() {
continue
}
goto ERROR
default:
goto ERROR
}
}
ERROR:
return nil, errUnexpectedEndOfJSON("json.Number", s.totalOffset())
}
func (d *numberDecoder) decodeByte(buf []byte, cursor int64) ([]byte, int64, error) {
buflen := int64(len(buf))
for ; cursor < buflen; cursor++ {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
continue
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
start := cursor
cursor++
for ; cursor < buflen; cursor++ {
if floatTable[buf[cursor]] {
continue
}
break
}
num := buf[start:cursor]
return num, cursor, nil
case 'n':
if cursor+3 >= buflen {
return nil, 0, errUnexpectedEndOfJSON("null", cursor)
}
if buf[cursor+1] != 'u' {
return nil, 0, errInvalidCharacter(buf[cursor+1], "null", cursor)
}
if buf[cursor+2] != 'l' {
return nil, 0, errInvalidCharacter(buf[cursor+2], "null", cursor)
}
if buf[cursor+3] != 'l' {
return nil, 0, errInvalidCharacter(buf[cursor+3], "null", cursor)
}
cursor += 4
return nil, cursor, nil
case '"':
return d.stringDecoder.decodeByte(buf, cursor)
default:
return nil, 0, errUnexpectedEndOfJSON("json.Number", cursor)
}
}
return nil, 0, errUnexpectedEndOfJSON("json.Number", cursor)
}

View File

@ -1251,31 +1251,31 @@ var unmarshalTests = []unmarshalTest{
in: `invalid`, // 143
ptr: new(json.Number),
err: json.NewSyntaxError(
`json: invalid character v as null`,
`json: json.Number unexpected end of JSON input`,
1,
),
},
{
in: `"invalid"`, // 144
ptr: new(json.Number),
err: fmt.Errorf(`strconv.ParseFloat: parsing "\"invalid\"": invalid syntax`),
err: fmt.Errorf(`strconv.ParseFloat: parsing "invalid": invalid syntax`),
},
{
in: `{"A":"invalid"}`, // 145
ptr: new(struct{ A json.Number }),
err: fmt.Errorf(`strconv.ParseFloat: parsing "\"invalid\"": invalid syntax`),
err: fmt.Errorf(`strconv.ParseFloat: parsing "invalid": invalid syntax`),
},
{
in: `{"A":"invalid"}`, // 146
ptr: new(struct {
A json.Number `json:",string"`
}),
err: fmt.Errorf(`json: null unexpected end of JSON input`),
err: fmt.Errorf(`json: json.Number unexpected end of JSON input`),
},
{
in: `{"A":"invalid"}`, // 147
ptr: new(map[string]json.Number),
err: fmt.Errorf(`strconv.ParseFloat: parsing "\"invalid\"": invalid syntax`),
err: fmt.Errorf(`strconv.ParseFloat: parsing "invalid": invalid syntax`),
},
/*
// invalid UTF-8 is coerced to valid UTF-8.
@ -1836,6 +1836,7 @@ func TestUnmarshal(t *testing.T) {
// Check round trip also decodes correctly.
if tt.err == nil {
//fmt.Println("iface = ", v.Interface(), v.Type())
enc, err := json.Marshal(v.Interface())
if err != nil {
t.Errorf("#%d: error re-marshaling: %v", i, err)

144
encode.go
View File

@ -2,10 +2,14 @@ package json
import (
"bytes"
"encoding"
"encoding/base64"
"fmt"
"io"
"math"
"reflect"
"strconv"
"strings"
"sync"
"unsafe"
)
@ -358,7 +362,147 @@ func encodeByteSlice(b []byte, src []byte) []byte {
return append(append(b, buf...), '"')
}
func encodeNumber(b []byte, n Number) ([]byte, error) {
if len(n) == 0 {
return append(b, '0'), nil
}
for i := 0; i < len(n); i++ {
if !floatTable[n[i]] {
return nil, fmt.Errorf("json: invalid number literal %q", n)
}
}
b = append(b, n...)
return b, nil
}
func appendIndent(ctx *encodeRuntimeContext, b []byte, indent int) []byte {
b = append(b, ctx.prefix...)
return append(b, bytes.Repeat(ctx.indentStr, ctx.baseIndent+indent)...)
}
func encodeIsNilForMarshaler(v interface{}) bool {
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Interface, reflect.Map, reflect.Ptr:
return rv.IsNil()
case reflect.Slice:
return rv.IsNil() || rv.Len() == 0
}
return false
}
func encodeMarshalJSON(code *opcode, b []byte, v interface{}, escape bool) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if code.addrForMarshaler {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
marshaler, ok := v.(Marshaler)
if !ok {
return encodeNull(b), nil
}
bb, err := marshaler.MarshalJSON()
if err != nil {
return nil, &MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
buf := bytes.NewBuffer(b)
//TODO: we should validate buffer with `compact`
if err := compact(buf, bb, escape); err != nil {
return nil, &MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
return buf.Bytes(), nil
}
func encodeMarshalJSONIndent(ctx *encodeRuntimeContext, code *opcode, b []byte, v interface{}, indent int, escape bool) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if code.addrForMarshaler {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
marshaler, ok := v.(Marshaler)
if !ok {
return encodeNull(b), nil
}
bb, err := marshaler.MarshalJSON()
if err != nil {
return nil, &MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
var compactBuf bytes.Buffer
if err := compact(&compactBuf, bb, escape); err != nil {
return nil, &MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
var indentBuf bytes.Buffer
if err := encodeWithIndent(
&indentBuf,
compactBuf.Bytes(),
string(ctx.prefix)+strings.Repeat(string(ctx.indentStr), ctx.baseIndent+indent+1),
string(ctx.indentStr),
); err != nil {
return nil, &MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
return append(b, indentBuf.Bytes()...), nil
}
func encodeMarshalText(code *opcode, b []byte, v interface{}, escape bool) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if code.addrForMarshaler {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
marshaler, ok := v.(encoding.TextMarshaler)
if !ok {
return encodeNull(b), nil
}
bytes, err := marshaler.MarshalText()
if err != nil {
return nil, &MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
if escape {
return encodeEscapedString(b, *(*string)(unsafe.Pointer(&bytes))), nil
}
return encodeNoEscapedString(b, *(*string)(unsafe.Pointer(&bytes))), nil
}
func encodeMarshalTextIndent(code *opcode, b []byte, v interface{}, escape bool) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if code.addrForMarshaler {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
marshaler, ok := v.(encoding.TextMarshaler)
if !ok {
return encodeNull(b), nil
}
bytes, err := marshaler.MarshalText()
if err != nil {
return nil, &MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
if escape {
return encodeEscapedString(b, *(*string)(unsafe.Pointer(&bytes))), nil
}
return encodeNoEscapedString(b, *(*string)(unsafe.Pointer(&bytes))), nil
}

View File

@ -24,6 +24,7 @@ type opcodeSet struct {
var (
marshalJSONType = reflect.TypeOf((*Marshaler)(nil)).Elem()
marshalTextType = reflect.TypeOf((*encoding.TextMarshaler)(nil)).Elem()
jsonNumberType = reflect.TypeOf(Number(""))
)
func encodeCompileToGetCodeSetSlowPath(typeptr uintptr) (*opcodeSet, error) {
@ -56,42 +57,44 @@ func encodeCompileToGetCodeSetSlowPath(typeptr uintptr) (*opcodeSet, error) {
func encodeCompileHead(ctx *encodeCompileContext) (*opcode, error) {
typ := ctx.typ
switch {
case typ.Implements(marshalJSONType):
case encodeImplementsMarshalJSON(typ):
return encodeCompileMarshalJSON(ctx)
case rtype_ptrTo(typ).Implements(marshalJSONType):
return encodeCompileMarshalJSONPtr(ctx)
case typ.Implements(marshalTextType):
case encodeImplementsMarshalText(typ):
return encodeCompileMarshalText(ctx)
case rtype_ptrTo(typ).Implements(marshalTextType):
return encodeCompileMarshalTextPtr(ctx)
}
isPtr := false
orgType := typ
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
isPtr = true
}
switch {
case encodeImplementsMarshalJSON(typ):
return encodeCompileMarshalJSON(ctx)
case encodeImplementsMarshalText(typ):
return encodeCompileMarshalText(ctx)
}
if typ.Kind() == reflect.Map {
return encodeCompileMap(ctx.withType(typ), isPtr)
if isPtr {
return encodeCompilePtr(ctx.withType(rtype_ptrTo(typ)))
}
return encodeCompileMap(ctx.withType(typ))
} else if typ.Kind() == reflect.Struct {
code, err := encodeCompileStruct(ctx.withType(typ), isPtr)
if err != nil {
return nil, err
}
encodeConvertHeadOnlyCode(code, isPtr)
encodeOptimizeStructEnd(code)
encodeLinkRecursiveCode(code)
return code, nil
} else if isPtr && typ.Implements(marshalTextType) {
typ = orgType
} else if isPtr && typ.Implements(marshalJSONType) {
typ = orgType
}
code, err := encodeCompile(ctx.withType(typ))
code, err := encodeCompile(ctx.withType(typ), isPtr)
if err != nil {
return nil, err
}
encodeConvertHeadOnlyCode(code, isPtr)
encodeOptimizeStructEnd(code)
encodeLinkRecursiveCode(code)
return code, nil
@ -100,9 +103,7 @@ func encodeCompileHead(ctx *encodeCompileContext) (*opcode, error) {
func encodeLinkRecursiveCode(c *opcode) {
for code := c; code.op != opEnd && code.op != opStructFieldRecursiveEnd; {
switch code.op {
case opStructFieldRecursive,
opStructFieldPtrAnonymousHeadRecursive,
opStructFieldAnonymousHeadRecursive:
case opStructFieldRecursive, opStructFieldRecursivePtr:
if code.jmp.linked {
code = code.next
continue
@ -143,7 +144,7 @@ func encodeLinkRecursiveCode(c *opcode) {
func encodeOptimizeStructEnd(c *opcode) {
for code := c; code.op != opEnd; {
if code.op == opStructFieldRecursive {
if code.op == opStructFieldRecursive || code.op == opStructFieldRecursivePtr {
// ignore if exists recursive operation
return
}
@ -163,7 +164,13 @@ func encodeOptimizeStructEnd(c *opcode) {
switch code.op {
case opStructEnd:
prev := code.prevField
if strings.Contains(prev.op.String(), "Head") {
prevOp := prev.op.String()
if strings.Contains(prevOp, "Head") ||
strings.Contains(prevOp, "Slice") ||
strings.Contains(prevOp, "Array") ||
strings.Contains(prevOp, "Map") ||
strings.Contains(prevOp, "MarshalJSON") ||
strings.Contains(prevOp, "MarshalText") {
// not exists field
code = code.next
break
@ -182,96 +189,62 @@ func encodeOptimizeStructEnd(c *opcode) {
}
}
func encodeConvertHeadOnlyCode(c *opcode, isPtrHead bool) {
if c.nextField == nil {
return
func encodeImplementsMarshalJSON(typ *rtype) bool {
if !typ.Implements(marshalJSONType) {
return false
}
if c.nextField.op.codeType() != codeStructEnd {
return
}
switch c.op {
case opStructFieldHead:
encodeConvertHeadOnlyCode(c.next, false)
if !strings.Contains(c.next.op.String(), "Only") {
return
}
c.op = opStructFieldHeadOnly
case opStructFieldHeadOmitEmpty:
encodeConvertHeadOnlyCode(c.next, false)
if !strings.Contains(c.next.op.String(), "Only") {
return
}
c.op = opStructFieldHeadOmitEmptyOnly
case opStructFieldHeadStringTag:
encodeConvertHeadOnlyCode(c.next, false)
if !strings.Contains(c.next.op.String(), "Only") {
return
}
c.op = opStructFieldHeadStringTagOnly
case opStructFieldPtrHead:
}
if strings.Contains(c.op.String(), "Marshal") {
return
}
if strings.Contains(c.op.String(), "Slice") {
return
}
if strings.Contains(c.op.String(), "Map") {
return
}
isPtrOp := strings.Contains(c.op.String(), "Ptr")
if isPtrOp && !isPtrHead {
c.op = c.op.headToOnlyHead()
} else if !isPtrOp && isPtrHead {
c.op = c.op.headToPtrHead().headToOnlyHead()
} else if isPtrOp && isPtrHead {
c.op = c.op.headToPtrHead().headToOnlyHead()
}
}
func encodeImplementsMarshaler(typ *rtype) bool {
switch {
case typ.Implements(marshalJSONType):
return true
case rtype_ptrTo(typ).Implements(marshalJSONType):
return true
case typ.Implements(marshalTextType):
return true
case rtype_ptrTo(typ).Implements(marshalTextType):
if typ.Kind() != reflect.Ptr {
return true
}
// type kind is reflect.Ptr
if !typ.Elem().Implements(marshalJSONType) {
return true
}
// needs to dereference
return false
}
func encodeCompile(ctx *encodeCompileContext) (*opcode, error) {
func encodeImplementsMarshalText(typ *rtype) bool {
if !typ.Implements(marshalTextType) {
return false
}
if typ.Kind() != reflect.Ptr {
return true
}
// type kind is reflect.Ptr
if !typ.Elem().Implements(marshalTextType) {
return true
}
// needs to dereference
return false
}
func encodeCompile(ctx *encodeCompileContext, isPtr bool) (*opcode, error) {
typ := ctx.typ
switch {
case typ.Implements(marshalJSONType):
case encodeImplementsMarshalJSON(typ):
return encodeCompileMarshalJSON(ctx)
case rtype_ptrTo(typ).Implements(marshalJSONType):
return encodeCompileMarshalJSONPtr(ctx)
case typ.Implements(marshalTextType):
case encodeImplementsMarshalText(typ):
return encodeCompileMarshalText(ctx)
case rtype_ptrTo(typ).Implements(marshalTextType):
return encodeCompileMarshalTextPtr(ctx)
}
switch typ.Kind() {
case reflect.Ptr:
return encodeCompilePtr(ctx)
case reflect.Slice:
elem := typ.Elem()
if !encodeImplementsMarshaler(elem) && elem.Kind() == reflect.Uint8 {
if elem.Kind() == reflect.Uint8 {
p := rtype_ptrTo(elem)
if !p.Implements(marshalJSONType) && !p.Implements(marshalTextType) {
return encodeCompileBytes(ctx)
}
}
return encodeCompileSlice(ctx)
case reflect.Array:
return encodeCompileArray(ctx)
case reflect.Map:
return encodeCompileMap(ctx, true)
return encodeCompileMap(ctx)
case reflect.Struct:
return encodeCompileStruct(ctx, false)
return encodeCompileStruct(ctx, isPtr)
case reflect.Interface:
return encodeCompileInterface(ctx)
case reflect.Int:
@ -308,13 +281,51 @@ func encodeCompile(ctx *encodeCompileContext) (*opcode, error) {
return nil, &UnsupportedTypeError{Type: rtype2type(typ)}
}
func encodeConvertPtrOp(code *opcode) opType {
ptrHeadOp := code.op.headToPtrHead()
if code.op != ptrHeadOp {
return ptrHeadOp
}
switch code.op {
case opInt:
return opIntPtr
case opUint:
return opUintPtr
case opFloat32:
return opFloat32Ptr
case opFloat64:
return opFloat64Ptr
case opString:
return opStringPtr
case opBool:
return opBoolPtr
case opBytes:
return opBytesPtr
case opArray:
return opArrayPtr
case opSlice:
return opSlicePtr
case opMap:
return opMapPtr
case opMarshalJSON:
return opMarshalJSONPtr
case opMarshalText:
return opMarshalTextPtr
case opInterface:
return opInterfacePtr
case opStructFieldRecursive:
return opStructFieldRecursivePtr
}
return code.op
}
func encodeCompileKey(ctx *encodeCompileContext) (*opcode, error) {
typ := ctx.typ
switch {
case rtype_ptrTo(typ).Implements(marshalJSONType):
return encodeCompileMarshalJSONPtr(ctx)
case rtype_ptrTo(typ).Implements(marshalTextType):
return encodeCompileMarshalTextPtr(ctx)
case encodeImplementsMarshalJSON(typ):
return encodeCompileMarshalJSON(ctx)
case encodeImplementsMarshalText(typ):
return encodeCompileMarshalText(ctx)
}
switch typ.Kind() {
case reflect.Ptr:
@ -350,46 +361,31 @@ func encodeCompileKey(ctx *encodeCompileContext) (*opcode, error) {
}
func encodeCompilePtr(ctx *encodeCompileContext) (*opcode, error) {
ptrOpcodeIndex := ctx.opcodeIndex
ptrIndex := ctx.ptrIndex
ctx.incIndex()
code, err := encodeCompile(ctx.withType(ctx.typ.Elem()))
code, err := encodeCompile(ctx.withType(ctx.typ.Elem()), true)
if err != nil {
return nil, err
}
ptrHeadOp := code.op.headToPtrHead()
if code.op != ptrHeadOp {
code.op = ptrHeadOp
code.decOpcodeIndex()
ctx.decIndex()
code.op = encodeConvertPtrOp(code)
code.ptrNum++
return code, nil
}
c := ctx.context()
c.opcodeIndex = ptrOpcodeIndex
c.ptrIndex = ptrIndex
return newOpCodeWithNext(c, opPtr, code), nil
}
func encodeCompileMarshalJSON(ctx *encodeCompileContext) (*opcode, error) {
code := newOpCode(ctx, opMarshalJSON)
ctx.incIndex()
return code, nil
typ := ctx.typ
if !typ.Implements(marshalJSONType) && rtype_ptrTo(typ).Implements(marshalJSONType) {
code.addrForMarshaler = true
}
func encodeCompileMarshalJSONPtr(ctx *encodeCompileContext) (*opcode, error) {
code := newOpCode(ctx.withType(rtype_ptrTo(ctx.typ)), opMarshalJSON)
ctx.incIndex()
return code, nil
}
func encodeCompileMarshalText(ctx *encodeCompileContext) (*opcode, error) {
code := newOpCode(ctx, opMarshalText)
ctx.incIndex()
return code, nil
typ := ctx.typ
if !typ.Implements(marshalTextType) && rtype_ptrTo(typ).Implements(marshalTextType) {
code.addrForMarshaler = true
}
func encodeCompileMarshalTextPtr(ctx *encodeCompileContext) (*opcode, error) {
code := newOpCode(ctx.withType(rtype_ptrTo(ctx.typ)), opMarshalText)
ctx.incIndex()
return code, nil
}
@ -593,7 +589,13 @@ func encodeCompileFloat64(ctx *encodeCompileContext) (*opcode, error) {
}
func encodeCompileString(ctx *encodeCompileContext) (*opcode, error) {
code := newOpCode(ctx, opString)
var op opType
if ctx.typ == type2rtype(jsonNumberType) {
op = opNumber
} else {
op = opString
}
code := newOpCode(ctx, op)
ctx.incIndex()
return code, nil
}
@ -624,7 +626,7 @@ func encodeCompileSlice(ctx *encodeCompileContext) (*opcode, error) {
header := newSliceHeaderCode(ctx)
ctx.incIndex()
code, err := encodeCompile(ctx.withType(ctx.typ.Elem()).incIndent())
code, err := encodeCompileSliceElem(ctx.withType(elem).incIndent())
if err != nil {
return nil, err
}
@ -648,6 +650,18 @@ func encodeCompileSlice(ctx *encodeCompileContext) (*opcode, error) {
return (*opcode)(unsafe.Pointer(header)), nil
}
func encodeCompileSliceElem(ctx *encodeCompileContext) (*opcode, error) {
typ := ctx.typ
switch {
case !typ.Implements(marshalJSONType) && rtype_ptrTo(typ).Implements(marshalJSONType):
return encodeCompileMarshalJSON(ctx)
case !typ.Implements(marshalTextType) && rtype_ptrTo(typ).Implements(marshalTextType):
return encodeCompileMarshalText(ctx)
default:
return encodeCompile(ctx, false)
}
}
func encodeCompileArray(ctx *encodeCompileContext) (*opcode, error) {
ctx.root = false
typ := ctx.typ
@ -658,7 +672,7 @@ func encodeCompileArray(ctx *encodeCompileContext) (*opcode, error) {
header := newArrayHeaderCode(ctx, alen)
ctx.incIndex()
code, err := encodeCompile(ctx.withType(elem).incIndent())
code, err := encodeCompile(ctx.withType(elem).incIndent(), false)
if err != nil {
return nil, err
}
@ -697,12 +711,12 @@ func mapiternext(it unsafe.Pointer)
//go:noescape
func maplen(m unsafe.Pointer) int
func encodeCompileMap(ctx *encodeCompileContext, withLoad bool) (*opcode, error) {
func encodeCompileMap(ctx *encodeCompileContext) (*opcode, error) {
// header => code => value => code => key => code => value => code => end
// ^ |
// |_______________________|
ctx = ctx.incIndent()
header := newMapHeaderCode(ctx, withLoad)
header := newMapHeaderCode(ctx)
ctx.incIndex()
typ := ctx.typ
@ -716,7 +730,7 @@ func encodeCompileMap(ctx *encodeCompileContext, withLoad bool) (*opcode, error)
ctx.incIndex()
valueType := typ.Elem()
valueCode, err := encodeCompile(ctx.withType(valueType))
valueCode, err := encodeCompile(ctx.withType(valueType), false)
if err != nil {
return nil, err
}
@ -745,174 +759,122 @@ func encodeCompileMap(ctx *encodeCompileContext, withLoad bool) (*opcode, error)
return (*opcode)(unsafe.Pointer(header)), nil
}
func encodeTypeToHeaderType(ctx *encodeCompileContext, code *opcode) opType {
func encodeTypeToHeaderType(code *opcode) opType {
switch code.op {
case opPtr:
ptrNum := 1
c := code
ctx.decIndex()
for {
if code.next.op == opPtr {
ptrNum++
code = code.next
ctx.decIndex()
continue
}
break
}
c.ptrNum = ptrNum
if ptrNum > 1 {
switch code.next.op {
case opInt:
c.mask = code.next.mask
c.rshiftNum = code.next.rshiftNum
return opStructFieldHeadIntNPtr
case opUint:
c.mask = code.next.mask
return opStructFieldHeadUintNPtr
case opFloat32:
return opStructFieldHeadFloat32NPtr
case opFloat64:
return opStructFieldHeadFloat64NPtr
case opString:
return opStructFieldHeadStringNPtr
case opBool:
return opStructFieldHeadBoolNPtr
}
} else {
switch code.next.op {
case opInt:
c.mask = code.next.mask
c.rshiftNum = code.next.rshiftNum
return opStructFieldHeadIntPtr
case opUint:
c.mask = code.next.mask
return opStructFieldHeadUintPtr
case opFloat32:
return opStructFieldHeadFloat32Ptr
case opFloat64:
return opStructFieldHeadFloat64Ptr
case opString:
return opStructFieldHeadStringPtr
case opBool:
return opStructFieldHeadBoolPtr
}
}
case opInt:
return opStructFieldHeadInt
case opIntPtr:
return opStructFieldHeadIntPtr
case opUint:
return opStructFieldHeadUint
case opUintPtr:
return opStructFieldHeadUintPtr
case opFloat32:
return opStructFieldHeadFloat32
case opFloat32Ptr:
return opStructFieldHeadFloat32Ptr
case opFloat64:
return opStructFieldHeadFloat64
case opFloat64Ptr:
return opStructFieldHeadFloat64Ptr
case opString:
return opStructFieldHeadString
case opStringPtr:
return opStructFieldHeadStringPtr
case opNumber:
return opStructFieldHeadNumber
case opNumberPtr:
return opStructFieldHeadNumberPtr
case opBool:
return opStructFieldHeadBool
case opMapHead:
case opBoolPtr:
return opStructFieldHeadBoolPtr
case opMap:
return opStructFieldHeadMap
case opMapHeadLoad:
return opStructFieldHeadMapLoad
case opArrayHead:
case opMapPtr:
code.op = opMap
return opStructFieldHeadMapPtr
case opArray:
return opStructFieldHeadArray
case opSliceHead:
case opArrayPtr:
code.op = opArray
return opStructFieldHeadArrayPtr
case opSlice:
return opStructFieldHeadSlice
case opStructFieldHead:
return opStructFieldHeadStruct
case opSlicePtr:
code.op = opSlice
return opStructFieldHeadSlicePtr
case opMarshalJSON:
return opStructFieldHeadMarshalJSON
case opMarshalJSONPtr:
return opStructFieldHeadMarshalJSONPtr
case opMarshalText:
return opStructFieldHeadMarshalText
case opMarshalTextPtr:
return opStructFieldHeadMarshalTextPtr
}
return opStructFieldHead
}
func encodeTypeToFieldType(ctx *encodeCompileContext, code *opcode) opType {
func encodeTypeToFieldType(code *opcode) opType {
switch code.op {
case opPtr:
ptrNum := 1
ctx.decIndex()
c := code
for {
if code.next.op == opPtr {
ptrNum++
code = code.next
ctx.decIndex()
continue
}
break
}
c.ptrNum = ptrNum
if ptrNum > 1 {
switch code.next.op {
case opInt:
c.mask = code.next.mask
c.rshiftNum = code.next.rshiftNum
return opStructFieldIntNPtr
case opUint:
c.mask = code.next.mask
return opStructFieldUintNPtr
case opFloat32:
return opStructFieldFloat32NPtr
case opFloat64:
return opStructFieldFloat64NPtr
case opString:
return opStructFieldStringNPtr
case opBool:
return opStructFieldBoolNPtr
}
} else {
switch code.next.op {
case opInt:
c.mask = code.next.mask
c.rshiftNum = code.next.rshiftNum
return opStructFieldIntPtr
case opUint:
c.mask = code.next.mask
return opStructFieldUintPtr
case opFloat32:
return opStructFieldFloat32Ptr
case opFloat64:
return opStructFieldFloat64Ptr
case opString:
return opStructFieldStringPtr
case opBool:
return opStructFieldBoolPtr
}
}
case opInt:
return opStructFieldInt
case opIntPtr:
return opStructFieldIntPtr
case opUint:
return opStructFieldUint
case opUintPtr:
return opStructFieldUintPtr
case opFloat32:
return opStructFieldFloat32
case opFloat32Ptr:
return opStructFieldFloat32Ptr
case opFloat64:
return opStructFieldFloat64
case opFloat64Ptr:
return opStructFieldFloat64Ptr
case opString:
return opStructFieldString
case opStringPtr:
return opStructFieldStringPtr
case opNumber:
return opStructFieldNumber
case opNumberPtr:
return opStructFieldNumberPtr
case opBool:
return opStructFieldBool
case opMapHead:
case opBoolPtr:
return opStructFieldBoolPtr
case opMap:
return opStructFieldMap
case opMapHeadLoad:
return opStructFieldMapLoad
case opArrayHead:
case opMapPtr:
code.op = opMap
return opStructFieldMapPtr
case opArray:
return opStructFieldArray
case opSliceHead:
case opArrayPtr:
code.op = opArray
return opStructFieldArrayPtr
case opSlice:
return opStructFieldSlice
case opStructFieldHead:
return opStructFieldStruct
case opSlicePtr:
code.op = opSlice
return opStructFieldSlicePtr
case opMarshalJSON:
return opStructFieldMarshalJSON
case opMarshalJSONPtr:
return opStructFieldMarshalJSONPtr
case opMarshalText:
return opStructFieldMarshalText
case opMarshalTextPtr:
return opStructFieldMarshalTextPtr
}
return opStructField
}
func encodeOptimizeStructHeader(ctx *encodeCompileContext, code *opcode, tag *structTag) opType {
headType := encodeTypeToHeaderType(ctx, code)
func encodeOptimizeStructHeader(code *opcode, tag *structTag) opType {
headType := encodeTypeToHeaderType(code)
switch {
case tag.isOmitEmpty:
headType = headType.headToOmitEmptyHead()
@ -922,8 +884,8 @@ func encodeOptimizeStructHeader(ctx *encodeCompileContext, code *opcode, tag *st
return headType
}
func encodeOptimizeStructField(ctx *encodeCompileContext, code *opcode, tag *structTag) opType {
fieldType := encodeTypeToFieldType(ctx, code)
func encodeOptimizeStructField(code *opcode, tag *structTag) opType {
fieldType := encodeTypeToFieldType(code)
switch {
case tag.isOmitEmpty:
fieldType = fieldType.fieldToOmitEmptyField()
@ -950,7 +912,7 @@ func encodeCompiledCode(ctx *encodeCompileContext) *opcode {
func encodeStructHeader(ctx *encodeCompileContext, fieldCode *opcode, valueCode *opcode, tag *structTag) *opcode {
fieldCode.indent--
op := encodeOptimizeStructHeader(ctx, valueCode, tag)
op := encodeOptimizeStructHeader(valueCode, tag)
fieldCode.op = op
fieldCode.mask = valueCode.mask
fieldCode.rshiftNum = valueCode.rshiftNum
@ -960,16 +922,35 @@ func encodeStructHeader(ctx *encodeCompileContext, fieldCode *opcode, valueCode
opStructFieldHeadSlice,
opStructFieldHeadArray,
opStructFieldHeadMap,
opStructFieldHeadMapLoad,
opStructFieldHeadStruct,
opStructFieldHeadOmitEmpty,
opStructFieldHeadOmitEmptySlice,
opStructFieldHeadStringTagSlice,
opStructFieldHeadOmitEmptyArray,
opStructFieldHeadStringTagArray,
opStructFieldHeadOmitEmptyMap,
opStructFieldHeadOmitEmptyMapLoad,
opStructFieldHeadStringTagMap,
opStructFieldHeadOmitEmptyStruct,
opStructFieldHeadStringTag:
return valueCode.beforeLastCode()
case opStructFieldHeadSlicePtr,
opStructFieldHeadOmitEmptySlicePtr,
opStructFieldHeadStringTagSlicePtr,
opStructFieldHeadArrayPtr,
opStructFieldHeadOmitEmptyArrayPtr,
opStructFieldHeadStringTagArrayPtr,
opStructFieldHeadMapPtr,
opStructFieldHeadOmitEmptyMapPtr,
opStructFieldHeadStringTagMapPtr:
return valueCode.beforeLastCode()
case opStructFieldHeadMarshalJSONPtr,
opStructFieldHeadOmitEmptyMarshalJSONPtr,
opStructFieldHeadStringTagMarshalJSONPtr,
opStructFieldHeadMarshalTextPtr,
opStructFieldHeadOmitEmptyMarshalTextPtr,
opStructFieldHeadStringTagMarshalTextPtr:
ctx.decOpcodeIndex()
return (*opcode)(unsafe.Pointer(fieldCode))
}
ctx.decOpcodeIndex()
return (*opcode)(unsafe.Pointer(fieldCode))
@ -977,26 +958,38 @@ func encodeStructHeader(ctx *encodeCompileContext, fieldCode *opcode, valueCode
func encodeStructField(ctx *encodeCompileContext, fieldCode *opcode, valueCode *opcode, tag *structTag) *opcode {
code := (*opcode)(unsafe.Pointer(fieldCode))
op := encodeOptimizeStructField(ctx, valueCode, tag)
op := encodeOptimizeStructField(valueCode, tag)
fieldCode.op = op
fieldCode.ptrNum = valueCode.ptrNum
fieldCode.mask = valueCode.mask
fieldCode.rshiftNum = valueCode.rshiftNum
fieldCode.jmp = valueCode.jmp
switch op {
case opStructField,
opStructFieldSlice,
opStructFieldArray,
opStructFieldMap,
opStructFieldMapLoad,
opStructFieldStruct,
opStructFieldOmitEmpty,
opStructFieldOmitEmptySlice,
opStructFieldStringTagSlice,
opStructFieldOmitEmptyArray,
opStructFieldStringTagArray,
opStructFieldOmitEmptyMap,
opStructFieldOmitEmptyMapLoad,
opStructFieldStringTagMap,
opStructFieldOmitEmptyStruct,
opStructFieldStringTag:
return valueCode.beforeLastCode()
case opStructFieldSlicePtr,
opStructFieldOmitEmptySlicePtr,
opStructFieldStringTagSlicePtr,
opStructFieldArrayPtr,
opStructFieldOmitEmptyArrayPtr,
opStructFieldStringTagArrayPtr,
opStructFieldMapPtr,
opStructFieldOmitEmptyMapPtr,
opStructFieldStringTagMapPtr:
return valueCode.beforeLastCode()
}
ctx.decIndex()
return code
@ -1006,7 +999,10 @@ func encodeIsNotExistsField(head *opcode) bool {
if head == nil {
return false
}
if head.op != opStructFieldAnonymousHead {
if head.op != opStructFieldHead {
return false
}
if !head.anonymousHead {
return false
}
if head.next == nil {
@ -1068,14 +1064,17 @@ func encodeAnonymousStructFieldPairMap(tags structTags, named string, valueCode
removedFields := map[*opcode]struct{}{}
for {
existsKey := tags.existsKey(f.displayKey)
op := f.op.headToAnonymousHead()
if existsKey && (f.next.op == opStructFieldPtrAnonymousHeadRecursive || f.next.op == opStructFieldAnonymousHeadRecursive) {
isHeadOp := strings.Contains(f.op.String(), "Head")
if existsKey && strings.Contains(f.op.String(), "Recursive") {
// through
} else if op != f.op {
} else if isHeadOp && !f.anonymousHead {
if existsKey {
f.op = opStructFieldAnonymousHead
// TODO: need to remove this head
f.op = opStructFieldHead
f.anonymousKey = true
f.anonymousHead = true
} else if named == "" {
f.op = op
f.anonymousHead = true
}
} else if named == "" && f.op == opStructEnd {
f.op = opStructAnonymousEnd
@ -1121,7 +1120,7 @@ func encodeAnonymousFieldPairRecursively(named string, valueCode *opcode) map[st
f := valueCode
var prevAnonymousField *opcode
for {
if f.displayKey != "" && strings.Contains(f.op.String(), "Anonymous") {
if f.displayKey != "" && f.anonymousHead {
key := fmt.Sprintf("%s.%s", named, f.displayKey)
anonymousFields[key] = append(anonymousFields[key], structFieldPair{
prevField: prevAnonymousField,
@ -1158,7 +1157,9 @@ func encodeOptimizeConflictAnonymousFields(anonymousFields map[string][]structFi
if !fieldPair.linked {
if fieldPair.prevField == nil {
// head operation
fieldPair.curField.op = opStructFieldAnonymousHead
fieldPair.curField.op = opStructFieldHead
fieldPair.curField.anonymousHead = true
fieldPair.curField.anonymousKey = true
} else {
diff := fieldPair.curField.nextField.displayIdx - fieldPair.curField.displayIdx
for i := 0; i < diff; i++ {
@ -1176,7 +1177,9 @@ func encodeOptimizeConflictAnonymousFields(anonymousFields map[string][]structFi
if !fieldPair.linked {
if fieldPair.prevField == nil {
// head operation
fieldPair.curField.op = opStructFieldAnonymousHead
fieldPair.curField.op = opStructFieldHead
fieldPair.curField.anonymousHead = true
fieldPair.curField.anonymousKey = true
} else {
diff := fieldPair.curField.nextField.displayIdx - fieldPair.curField.displayIdx
removedFields[fieldPair.curField] = struct{}{}
@ -1209,7 +1212,10 @@ func encodeCompileStruct(ctx *encodeCompileContext, isPtr bool) (*opcode, error)
// ^ |
// |__________|
fieldNum := typ.NumField()
indirect := ifaceIndir(typ)
//fmt.Println("indirect = ", indirect, "type = ", typ, "isPtr = ", isPtr)
fieldIdx := 0
disableIndirectConversion := false
var (
head *opcode
code *opcode
@ -1228,30 +1234,66 @@ func encodeCompileStruct(ctx *encodeCompileContext, isPtr bool) (*opcode, error)
for i, tag := range tags {
field := tag.field
fieldType := type2rtype(field.Type)
if isPtr && i == 0 {
// head field of pointer structure at top level
// if field type is pointer and implements MarshalJSON or MarshalText,
// it need to operation of dereference of pointer.
if field.Type.Kind() == reflect.Ptr &&
(field.Type.Implements(marshalJSONType) || field.Type.Implements(marshalTextType)) {
fieldType = rtype_ptrTo(fieldType)
}
}
fieldOpcodeIndex := ctx.opcodeIndex
fieldPtrIndex := ctx.ptrIndex
ctx.incIndex()
valueCode, err := encodeCompile(ctx.withType(fieldType))
nilcheck := true
var valueCode *opcode
isNilValue := fieldType.Kind() == reflect.Ptr || fieldType.Kind() == reflect.Interface || fieldType.Kind() == reflect.Slice || fieldType.Kind() == reflect.Map
addrForMarshaler := false
if i == 0 && fieldNum == 1 && isPtr && !isNilValue && rtype_ptrTo(fieldType).Implements(marshalJSONType) && !fieldType.Implements(marshalJSONType) {
// *struct{ field T } => struct { field *T }
// func (*T) MarshalJSON() ([]byte, error)
// move pointer position from head to first field
code, err := encodeCompileMarshalJSON(ctx.withType(rtype_ptrTo(fieldType)))
if err != nil {
return nil, err
}
valueCode = code
nilcheck = false
indirect = false
disableIndirectConversion = true
} else if i == 0 && fieldNum == 1 && isPtr && !isNilValue && rtype_ptrTo(fieldType).Implements(marshalTextType) && !fieldType.Implements(marshalTextType) {
// *struct{ field T } => struct { field *T }
// func (*T) MarshalText() ([]byte, error)
// move pointer position from head to first field
code, err := encodeCompileMarshalText(ctx.withType(rtype_ptrTo(fieldType)))
if err != nil {
return nil, err
}
valueCode = code
nilcheck = false
indirect = false
disableIndirectConversion = true
} else if isPtr && !fieldType.Implements(marshalJSONType) && rtype_ptrTo(fieldType).Implements(marshalJSONType) {
// *struct{ field T }
// func (*T) MarshalJSON() ([]byte, error)
code, err := encodeCompileMarshalJSON(ctx.withType(fieldType))
if err != nil {
return nil, err
}
addrForMarshaler = true
nilcheck = false
valueCode = code
} else if isPtr && !fieldType.Implements(marshalTextType) && rtype_ptrTo(fieldType).Implements(marshalTextType) {
// *struct{ field T }
// func (*T) MarshalText() ([]byte, error)
code, err := encodeCompileMarshalText(ctx.withType(fieldType))
if err != nil {
return nil, err
}
addrForMarshaler = true
nilcheck = false
valueCode = code
} else {
code, err := encodeCompile(ctx.withType(fieldType), isPtr)
if err != nil {
return nil, err
}
valueCode = code
}
if field.Anonymous {
if valueCode.op == opPtr && valueCode.next.op == opStructFieldRecursive {
valueCode = valueCode.next
valueCode.decOpcodeIndex()
ctx.decIndex()
valueCode.op = opStructFieldPtrHeadRecursive
}
tagKey := ""
if tag.isTaggedKey {
tagKey = tag.key
@ -1259,6 +1301,14 @@ func encodeCompileStruct(ctx *encodeCompileContext, isPtr bool) (*opcode, error)
for k, v := range encodeAnonymousStructFieldPairMap(tags, tagKey, valueCode) {
anonymousFields[k] = append(anonymousFields[k], v...)
}
valueCode.decIndent()
// fix issue144
if !(isPtr && strings.Contains(valueCode.op.String(), "Marshal")) {
valueCode.indirect = indirect
}
} else {
valueCode.indirect = indirect
}
key := fmt.Sprintf(`"%s":`, tag.key)
escapedKey := fmt.Sprintf(`%s:`, string(encodeEscapedString([]byte{}, tag.key)))
@ -1274,6 +1324,9 @@ func encodeCompileStruct(ctx *encodeCompileContext, isPtr bool) (*opcode, error)
isTaggedKey: tag.isTaggedKey,
displayKey: tag.key,
offset: field.Offset,
indirect: indirect,
nilcheck: nilcheck,
addrForMarshaler: addrForMarshaler,
}
if fieldIdx == 0 {
fieldCode.headIdx = fieldCode.idx
@ -1333,5 +1386,9 @@ func encodeCompileStruct(ctx *encodeCompileContext, isPtr bool) (*opcode, error)
delete(ctx.structTypeToCompiledCode, typeptr)
if !disableIndirectConversion && !head.indirect && isPtr {
head.indirect = true
}
return ret, nil
}

View File

@ -18,7 +18,11 @@ type opcode struct {
displayKey string // key text to display
isTaggedKey bool // whether tagged key
anonymousKey bool // whether anonymous key
anonymousHead bool // whether anonymous head or not
root bool // whether root
indirect bool // whether indirect or not
nilcheck bool // whether needs to nilcheck or not
addrForMarshaler bool // whether needs to addr for marshaler or not
rshiftNum uint8 // use to take bit for judging whether negative integer or not
mask uint64 // mask for number
indent int // indent number
@ -90,7 +94,11 @@ func (c *opcode) copy(codeMap map[uintptr]*opcode) *opcode {
rshiftNum: c.rshiftNum,
isTaggedKey: c.isTaggedKey,
anonymousKey: c.anonymousKey,
anonymousHead: c.anonymousHead,
root: c.root,
indirect: c.indirect,
nilcheck: c.nilcheck,
addrForMarshaler: c.addrForMarshaler,
indent: c.indent,
idx: c.idx,
headIdx: c.headIdx,
@ -172,6 +180,18 @@ func (c *opcode) decOpcodeIndex() {
}
}
func (c *opcode) decIndent() {
for code := c; code.op != opEnd; {
code.indent--
switch code.op.codeType() {
case codeArrayElem, codeSliceElem, codeMapKey:
code = code.end
default:
code = code.next
}
}
}
func (c *opcode) dumpHead(code *opcode) string {
var length uintptr
if code.op.codeType() == codeArrayHead {
@ -360,7 +380,7 @@ func newSliceHeaderCode(ctx *encodeCompileContext) *opcode {
ctx.incPtrIndex()
length := opcodeOffset(ctx.ptrIndex)
return &opcode{
op: opSliceHead,
op: opSlice,
displayIdx: ctx.opcodeIndex,
idx: idx,
headIdx: idx,
@ -388,7 +408,7 @@ func newArrayHeaderCode(ctx *encodeCompileContext, alen int) *opcode {
ctx.incPtrIndex()
elemIdx := opcodeOffset(ctx.ptrIndex)
return &opcode{
op: opArrayHead,
op: opArray,
displayIdx: ctx.opcodeIndex,
idx: idx,
headIdx: idx,
@ -406,17 +426,12 @@ func newArrayElemCode(ctx *encodeCompileContext, head *opcode, length int, size
elemIdx: head.elemIdx,
headIdx: head.headIdx,
length: uintptr(length),
indent: ctx.indent,
size: size,
}
}
func newMapHeaderCode(ctx *encodeCompileContext, withLoad bool) *opcode {
var op opType
if withLoad {
op = opMapHeadLoad
} else {
op = opMapHead
}
func newMapHeaderCode(ctx *encodeCompileContext) *opcode {
idx := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
elemIdx := opcodeOffset(ctx.ptrIndex)
@ -425,7 +440,7 @@ func newMapHeaderCode(ctx *encodeCompileContext, withLoad bool) *opcode {
ctx.incPtrIndex()
mapIter := opcodeOffset(ctx.ptrIndex)
return &opcode{
op: op,
op: opMap,
typ: ctx.typ,
displayIdx: ctx.opcodeIndex,
idx: idx,

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View File

@ -3,6 +3,7 @@ package json_test
import (
"bytes"
"encoding"
stdjson "encoding/json"
"errors"
"fmt"
"log"
@ -1674,3 +1675,117 @@ func TestOmitEmpty(t *testing.T) {
t.Errorf(" got: %s\nwant: %s\n", got, optionalsExpected)
}
}
type testNullStr string
func (v *testNullStr) MarshalJSON() ([]byte, error) {
if *v == "" {
return []byte("null"), nil
}
return []byte(*v), nil
}
func TestIssue147(t *testing.T) {
type T struct {
Field1 string `json:"field1"`
Field2 testNullStr `json:"field2,omitempty"`
}
got, err := json.Marshal(T{
Field1: "a",
Field2: "b",
})
if err != nil {
t.Fatal(err)
}
expect, _ := stdjson.Marshal(T{
Field1: "a",
Field2: "b",
})
if !bytes.Equal(expect, got) {
t.Fatalf("expect %q but got %q", string(expect), string(got))
}
}
type testIssue144 struct {
name string
number int64
}
func (v *testIssue144) MarshalJSON() ([]byte, error) {
if v.name != "" {
return json.Marshal(v.name)
}
return json.Marshal(v.number)
}
func TestIssue144(t *testing.T) {
type Embeded struct {
Field *testIssue144 `json:"field,omitempty"`
}
type T struct {
Embeded
}
{
v := T{
Embeded: Embeded{Field: &testIssue144{name: "hoge"}},
}
got, err := json.Marshal(v)
if err != nil {
t.Fatal(err)
}
expect, _ := stdjson.Marshal(v)
if !bytes.Equal(expect, got) {
t.Fatalf("expect %q but got %q", string(expect), string(got))
}
}
{
v := &T{
Embeded: Embeded{Field: &testIssue144{name: "hoge"}},
}
got, err := json.Marshal(v)
if err != nil {
t.Fatal(err)
}
expect, _ := stdjson.Marshal(v)
if !bytes.Equal(expect, got) {
t.Fatalf("expect %q but got %q", string(expect), string(got))
}
}
}
func TestIssue118(t *testing.T) {
type data struct {
Columns []string `json:"columns"`
Rows1 [][]string `json:"rows1"`
Rows2 [][]string `json:"rows2"`
}
v := data{Columns: []string{"1", "2", "3"}}
got, err := json.MarshalIndent(v, "", " ")
if err != nil {
t.Fatal(err)
}
expect, _ := stdjson.MarshalIndent(v, "", " ")
if !bytes.Equal(expect, got) {
t.Fatalf("expect %q but got %q", string(expect), string(got))
}
}
func TestIssue104(t *testing.T) {
type A struct {
Field1 string
Field2 int
Field3 float64
}
type T struct {
Field A
}
got, err := json.Marshal(T{})
if err != nil {
t.Fatal(err)
}
expect, _ := stdjson.Marshal(T{})
if !bytes.Equal(expect, got) {
t.Fatalf("expect %q but got %q", string(expect), string(got))
}
}

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36
json.go
View File

@ -2,8 +2,8 @@ package json
import (
"bytes"
"encoding/json"
"errors"
"strconv"
)
// Marshaler is the interface implemented by types that
@ -281,39 +281,7 @@ func UnmarshalNoEscape(data []byte, v interface{}) error {
type Token interface{}
// A Number represents a JSON number literal.
type Number string
// String returns the literal text of the number.
func (n Number) String() string { return string(n) }
// Float64 returns the number as a float64.
func (n Number) Float64() (float64, error) {
return strconv.ParseFloat(string(n), 64)
}
// Int64 returns the number as an int64.
func (n Number) Int64() (int64, error) {
return strconv.ParseInt(string(n), 10, 64)
}
func (n Number) MarshalJSON() ([]byte, error) {
if n == "" {
return []byte("0"), nil
}
if _, err := n.Float64(); err != nil {
return nil, err
}
return []byte(n), nil
}
func (n *Number) UnmarshalJSON(b []byte) error {
s := string(b)
if _, err := strconv.ParseFloat(s, 64); err != nil {
return &SyntaxError{msg: err.Error()}
}
*n = Number(s)
return nil
}
type Number = json.Number
// RawMessage is a raw encoded JSON value.
// It implements Marshaler and Unmarshaler and can

View File

@ -244,6 +244,10 @@ func (t *rtype) Out(i int) reflect.Type {
return rtype_Out(t, i)
}
//go:linkname ifaceIndir reflect.ifaceIndir
//go:noescape
func ifaceIndir(*rtype) bool
//go:linkname rtype2type reflect.toType
//go:noescape
func rtype2type(t *rtype) reflect.Type