forked from mirror/go-json
100 lines
1.8 KiB
Go
100 lines
1.8 KiB
Go
package json
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import (
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"unsafe"
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)
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type encodeCompileContext struct {
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typ *rtype
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withIndent bool
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root bool
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opcodeIndex int
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ptrIndex int
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indent int
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parent *encodeCompileContext
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}
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func (c *encodeCompileContext) context() *encodeCompileContext {
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return &encodeCompileContext{
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typ: c.typ,
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withIndent: c.withIndent,
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root: c.root,
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opcodeIndex: c.opcodeIndex,
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ptrIndex: c.ptrIndex,
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indent: c.indent,
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parent: c,
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}
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}
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func (c *encodeCompileContext) withType(typ *rtype) *encodeCompileContext {
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ctx := c.context()
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ctx.typ = typ
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return ctx
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}
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func (c *encodeCompileContext) incIndent() *encodeCompileContext {
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ctx := c.context()
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ctx.indent++
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return ctx
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}
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func (c *encodeCompileContext) decIndent() *encodeCompileContext {
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ctx := c.context()
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ctx.indent--
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return ctx
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}
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func (c *encodeCompileContext) incIndex() {
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c.incOpcodeIndex()
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c.incPtrIndex()
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}
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func (c *encodeCompileContext) decIndex() {
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c.decOpcodeIndex()
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c.decPtrIndex()
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}
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func (c *encodeCompileContext) incOpcodeIndex() {
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c.opcodeIndex++
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if c.parent != nil {
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c.parent.incOpcodeIndex()
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}
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}
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func (c *encodeCompileContext) decOpcodeIndex() {
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c.opcodeIndex--
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if c.parent != nil {
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c.parent.decOpcodeIndex()
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}
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}
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func (c *encodeCompileContext) incPtrIndex() {
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c.ptrIndex++
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if c.parent != nil {
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c.parent.incPtrIndex()
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}
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}
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func (c *encodeCompileContext) decPtrIndex() {
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c.ptrIndex--
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if c.parent != nil {
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c.parent.decPtrIndex()
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}
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}
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type encodeRuntimeContext struct {
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ptrs []uintptr
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keepRefs []unsafe.Pointer
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}
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func (c *encodeRuntimeContext) init(p uintptr) {
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c.ptrs[0] = p
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c.keepRefs = c.keepRefs[:0]
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}
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func (c *encodeRuntimeContext) ptr() uintptr {
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header := (*sliceHeader)(unsafe.Pointer(&c.ptrs))
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return uintptr(header.data)
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}
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