forked from mirror/go-json
Remove unnecessary dependency on decoder
This commit is contained in:
parent
d7c9594839
commit
3b7d5a6996
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@ -68,7 +68,7 @@ func (d *Decoder) decode(src []byte, header *interfaceHeader) error {
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if err := d.validateType(copiedType, ptr); err != nil {
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return err
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}
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dec, err := d.compileToGetDecoder(typeptr, typ)
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dec, err := decodeCompileToGetDecoder(typeptr, typ)
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if err != nil {
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return err
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}
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@ -127,7 +127,7 @@ func (d *Decoder) Decode(v interface{}) error {
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return err
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}
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dec, err := d.compileToGetDecoder(typeptr, typ)
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dec, err := decodeCompileToGetDecoder(typeptr, typ)
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if err != nil {
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return err
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}
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@ -6,14 +6,13 @@ import (
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"unsafe"
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)
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func (d *Decoder) compileToGetDecoderSlowPath(typeptr uintptr, typ *rtype) (decoder, error) {
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func decodeCompileToGetDecoderSlowPath(typeptr uintptr, typ *rtype) (decoder, error) {
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decoderMap := loadDecoderMap()
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if dec, exists := decoderMap[typeptr]; exists {
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return dec, nil
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}
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d.structTypeToDecoder = map[uintptr]decoder{}
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dec, err := d.compileHead(typ)
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dec, err := decodeCompileHead(typ, map[uintptr]decoder{})
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if err != nil {
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return nil, err
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}
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@ -21,17 +20,17 @@ func (d *Decoder) compileToGetDecoderSlowPath(typeptr uintptr, typ *rtype) (deco
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return dec, nil
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}
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func (d *Decoder) compileHead(typ *rtype) (decoder, error) {
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func decodeCompileHead(typ *rtype, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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switch {
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case rtype_ptrTo(typ).Implements(unmarshalJSONType):
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return newUnmarshalJSONDecoder(rtype_ptrTo(typ), "", ""), nil
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case rtype_ptrTo(typ).Implements(unmarshalTextType):
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return newUnmarshalTextDecoder(rtype_ptrTo(typ), "", ""), nil
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}
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return d.compile(typ.Elem(), "", "")
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return decodeCompile(typ.Elem(), "", "", structTypeToDecoder)
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}
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func (d *Decoder) compile(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompile(typ *rtype, structName, fieldName string, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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switch {
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case rtype_ptrTo(typ).Implements(unmarshalJSONType):
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return newUnmarshalJSONDecoder(rtype_ptrTo(typ), structName, fieldName), nil
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@ -41,51 +40,51 @@ func (d *Decoder) compile(typ *rtype, structName, fieldName string) (decoder, er
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switch typ.Kind() {
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case reflect.Ptr:
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return d.compilePtr(typ, structName, fieldName)
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return decodeCompilePtr(typ, structName, fieldName, structTypeToDecoder)
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case reflect.Struct:
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return d.compileStruct(typ, structName, fieldName)
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return decodeCompileStruct(typ, structName, fieldName, structTypeToDecoder)
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case reflect.Slice:
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elem := typ.Elem()
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if elem.Kind() == reflect.Uint8 {
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return d.compileBytes(elem, structName, fieldName)
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return decodeCompileBytes(elem, structName, fieldName)
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}
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return d.compileSlice(typ, structName, fieldName)
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return decodeCompileSlice(typ, structName, fieldName, structTypeToDecoder)
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case reflect.Array:
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return d.compileArray(typ, structName, fieldName)
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return decodeCompileArray(typ, structName, fieldName, structTypeToDecoder)
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case reflect.Map:
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return d.compileMap(typ, structName, fieldName)
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return decodeCompileMap(typ, structName, fieldName, structTypeToDecoder)
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case reflect.Interface:
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return d.compileInterface(typ, structName, fieldName)
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return decodeCompileInterface(typ, structName, fieldName)
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case reflect.Uintptr:
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return d.compileUint(typ, structName, fieldName)
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return decodeCompileUint(typ, structName, fieldName)
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case reflect.Int:
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return d.compileInt(typ, structName, fieldName)
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return decodeCompileInt(typ, structName, fieldName)
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case reflect.Int8:
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return d.compileInt8(typ, structName, fieldName)
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return decodeCompileInt8(typ, structName, fieldName)
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case reflect.Int16:
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return d.compileInt16(typ, structName, fieldName)
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return decodeCompileInt16(typ, structName, fieldName)
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case reflect.Int32:
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return d.compileInt32(typ, structName, fieldName)
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return decodeCompileInt32(typ, structName, fieldName)
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case reflect.Int64:
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return d.compileInt64(typ, structName, fieldName)
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return decodeCompileInt64(typ, structName, fieldName)
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case reflect.Uint:
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return d.compileUint(typ, structName, fieldName)
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return decodeCompileUint(typ, structName, fieldName)
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case reflect.Uint8:
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return d.compileUint8(typ, structName, fieldName)
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return decodeCompileUint8(typ, structName, fieldName)
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case reflect.Uint16:
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return d.compileUint16(typ, structName, fieldName)
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return decodeCompileUint16(typ, structName, fieldName)
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case reflect.Uint32:
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return d.compileUint32(typ, structName, fieldName)
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return decodeCompileUint32(typ, structName, fieldName)
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case reflect.Uint64:
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return d.compileUint64(typ, structName, fieldName)
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return decodeCompileUint64(typ, structName, fieldName)
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case reflect.String:
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return d.compileString(structName, fieldName)
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return decodeCompileString(structName, fieldName)
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case reflect.Bool:
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return d.compileBool(structName, fieldName)
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return decodeCompileBool(structName, fieldName)
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case reflect.Float32:
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return d.compileFloat32(structName, fieldName)
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return decodeCompileFloat32(structName, fieldName)
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case reflect.Float64:
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return d.compileFloat64(structName, fieldName)
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return decodeCompileFloat64(structName, fieldName)
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}
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return nil, &UnmarshalTypeError{
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Value: "object",
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@ -94,11 +93,11 @@ func (d *Decoder) compile(typ *rtype, structName, fieldName string) (decoder, er
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}
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}
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func (d *Decoder) compileMapKey(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileMapKey(typ *rtype, structName, fieldName string, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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if rtype_ptrTo(typ).Implements(unmarshalTextType) {
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return newUnmarshalTextDecoder(rtype_ptrTo(typ), structName, fieldName), nil
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}
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dec, err := d.compile(typ, structName, fieldName)
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dec, err := decodeCompile(typ, structName, fieldName, structTypeToDecoder)
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if err != nil {
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return nil, err
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}
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@ -122,133 +121,133 @@ ERROR:
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}
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}
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func (d *Decoder) compilePtr(typ *rtype, structName, fieldName string) (decoder, error) {
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dec, err := d.compile(typ.Elem(), structName, fieldName)
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func decodeCompilePtr(typ *rtype, structName, fieldName string, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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dec, err := decodeCompile(typ.Elem(), structName, fieldName, structTypeToDecoder)
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if err != nil {
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return nil, err
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}
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return newPtrDecoder(dec, typ.Elem(), structName, fieldName), nil
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}
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func (d *Decoder) compileInt(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileInt(typ *rtype, structName, fieldName string) (decoder, error) {
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return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
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*(*int)(p) = int(v)
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}), nil
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}
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func (d *Decoder) compileInt8(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileInt8(typ *rtype, structName, fieldName string) (decoder, error) {
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return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
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*(*int8)(p) = int8(v)
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}), nil
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}
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func (d *Decoder) compileInt16(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileInt16(typ *rtype, structName, fieldName string) (decoder, error) {
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return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
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*(*int16)(p) = int16(v)
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}), nil
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}
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func (d *Decoder) compileInt32(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileInt32(typ *rtype, structName, fieldName string) (decoder, error) {
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return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
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*(*int32)(p) = int32(v)
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}), nil
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}
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func (d *Decoder) compileInt64(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileInt64(typ *rtype, structName, fieldName string) (decoder, error) {
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return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
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*(*int64)(p) = v
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}), nil
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}
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func (d *Decoder) compileUint(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileUint(typ *rtype, structName, fieldName string) (decoder, error) {
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return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
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*(*uint)(p) = uint(v)
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}), nil
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}
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func (d *Decoder) compileUint8(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileUint8(typ *rtype, structName, fieldName string) (decoder, error) {
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return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
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*(*uint8)(p) = uint8(v)
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}), nil
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}
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func (d *Decoder) compileUint16(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileUint16(typ *rtype, structName, fieldName string) (decoder, error) {
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return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
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*(*uint16)(p) = uint16(v)
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}), nil
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}
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func (d *Decoder) compileUint32(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileUint32(typ *rtype, structName, fieldName string) (decoder, error) {
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return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
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*(*uint32)(p) = uint32(v)
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}), nil
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}
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func (d *Decoder) compileUint64(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileUint64(typ *rtype, structName, fieldName string) (decoder, error) {
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return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
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*(*uint64)(p) = v
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}), nil
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}
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func (d *Decoder) compileFloat32(structName, fieldName string) (decoder, error) {
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func decodeCompileFloat32(structName, fieldName string) (decoder, error) {
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return newFloatDecoder(structName, fieldName, func(p unsafe.Pointer, v float64) {
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*(*float32)(p) = float32(v)
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}), nil
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}
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func (d *Decoder) compileFloat64(structName, fieldName string) (decoder, error) {
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func decodeCompileFloat64(structName, fieldName string) (decoder, error) {
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return newFloatDecoder(structName, fieldName, func(p unsafe.Pointer, v float64) {
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*(*float64)(p) = v
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}), nil
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}
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func (d *Decoder) compileString(structName, fieldName string) (decoder, error) {
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func decodeCompileString(structName, fieldName string) (decoder, error) {
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return newStringDecoder(structName, fieldName), nil
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}
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func (d *Decoder) compileBool(structName, fieldName string) (decoder, error) {
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func decodeCompileBool(structName, fieldName string) (decoder, error) {
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return newBoolDecoder(structName, fieldName), nil
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}
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func (d *Decoder) compileBytes(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileBytes(typ *rtype, structName, fieldName string) (decoder, error) {
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return newBytesDecoder(typ, structName, fieldName), nil
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}
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func (d *Decoder) compileSlice(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileSlice(typ *rtype, structName, fieldName string, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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elem := typ.Elem()
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decoder, err := d.compile(elem, structName, fieldName)
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decoder, err := decodeCompile(elem, structName, fieldName, structTypeToDecoder)
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if err != nil {
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return nil, err
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}
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return newSliceDecoder(decoder, elem, elem.Size(), structName, fieldName), nil
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}
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func (d *Decoder) compileArray(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileArray(typ *rtype, structName, fieldName string, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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elem := typ.Elem()
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decoder, err := d.compile(elem, structName, fieldName)
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decoder, err := decodeCompile(elem, structName, fieldName, structTypeToDecoder)
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if err != nil {
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return nil, err
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}
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return newArrayDecoder(decoder, elem, typ.Len(), structName, fieldName), nil
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}
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func (d *Decoder) compileMap(typ *rtype, structName, fieldName string) (decoder, error) {
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keyDec, err := d.compileMapKey(typ.Key(), structName, fieldName)
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func decodeCompileMap(typ *rtype, structName, fieldName string, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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keyDec, err := decodeCompileMapKey(typ.Key(), structName, fieldName, structTypeToDecoder)
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if err != nil {
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return nil, err
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}
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valueDec, err := d.compile(typ.Elem(), structName, fieldName)
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valueDec, err := decodeCompile(typ.Elem(), structName, fieldName, structTypeToDecoder)
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if err != nil {
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return nil, err
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}
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return newMapDecoder(typ, typ.Key(), keyDec, typ.Elem(), valueDec, structName, fieldName), nil
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}
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func (d *Decoder) compileInterface(typ *rtype, structName, fieldName string) (decoder, error) {
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return newInterfaceDecoder(d, typ, structName, fieldName), nil
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func decodeCompileInterface(typ *rtype, structName, fieldName string) (decoder, error) {
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return newInterfaceDecoder(typ, structName, fieldName), nil
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}
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func (d *Decoder) removeConflictFields(fieldMap map[string]*structFieldSet, conflictedMap map[string]struct{}, dec *structDecoder, baseOffset uintptr) {
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func decodeRemoveConflictFields(fieldMap map[string]*structFieldSet, conflictedMap map[string]struct{}, dec *structDecoder, baseOffset uintptr) {
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for k, v := range dec.fieldMap {
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if _, exists := conflictedMap[k]; exists {
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// already conflicted key
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@ -303,16 +302,16 @@ func (d *Decoder) removeConflictFields(fieldMap map[string]*structFieldSet, conf
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}
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}
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func (d *Decoder) compileStruct(typ *rtype, structName, fieldName string) (decoder, error) {
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func decodeCompileStruct(typ *rtype, structName, fieldName string, structTypeToDecoder map[uintptr]decoder) (decoder, error) {
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fieldNum := typ.NumField()
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conflictedMap := map[string]struct{}{}
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fieldMap := map[string]*structFieldSet{}
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typeptr := uintptr(unsafe.Pointer(typ))
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if dec, exists := d.structTypeToDecoder[typeptr]; exists {
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if dec, exists := structTypeToDecoder[typeptr]; exists {
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return dec, nil
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}
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structDec := newStructDecoder(structName, fieldName, fieldMap)
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d.structTypeToDecoder[typeptr] = structDec
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structTypeToDecoder[typeptr] = structDec
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structName = typ.Name()
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for i := 0; i < fieldNum; i++ {
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field := typ.Field(i)
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@ -320,7 +319,7 @@ func (d *Decoder) compileStruct(typ *rtype, structName, fieldName string) (decod
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continue
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}
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tag := structTagFromField(field)
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dec, err := d.compile(type2rtype(field.Type), structName, field.Name)
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dec, err := decodeCompile(type2rtype(field.Type), structName, field.Name, structTypeToDecoder)
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if err != nil {
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return nil, err
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}
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@ -330,7 +329,7 @@ func (d *Decoder) compileStruct(typ *rtype, structName, fieldName string) (decod
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// recursive definition
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continue
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}
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d.removeConflictFields(fieldMap, conflictedMap, stDec, field.Offset)
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decodeRemoveConflictFields(fieldMap, conflictedMap, stDec, field.Offset)
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} else if pdec, ok := dec.(*ptrDecoder); ok {
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contentDec := pdec.contentDecoder()
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if pdec.typ == typ {
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@ -416,7 +415,7 @@ func (d *Decoder) compileStruct(typ *rtype, structName, fieldName string) (decod
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}
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}
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}
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delete(d.structTypeToDecoder, typeptr)
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delete(structTypeToDecoder, typeptr)
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structDec.tryOptimize()
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return structDec, nil
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}
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@ -2,9 +2,9 @@
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package json
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func (d *Decoder) compileToGetDecoder(typeptr uintptr, typ *rtype) (decoder, error) {
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func decodeCompileToGetDecoder(typeptr uintptr, typ *rtype) (decoder, error) {
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if typeptr > maxTypeAddr {
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return d.compileToGetDecoderSlowPath(typeptr, typ)
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return decodeCompileToGetDecoderSlowPath(typeptr, typ)
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}
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index := typeptr - baseTypeAddr
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@ -12,8 +12,7 @@ func (d *Decoder) compileToGetDecoder(typeptr uintptr, typ *rtype) (decoder, err
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return dec, nil
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}
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d.structTypeToDecoder = map[uintptr]decoder{}
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dec, err := d.compileHead(typ)
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dec, err := decodeCompileHead(typ, map[uintptr]decoder{})
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if err != nil {
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return nil, err
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}
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@ -8,9 +8,9 @@ import (
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var decMu sync.RWMutex
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func (d *Decoder) compileToGetDecoder(typeptr uintptr, typ *rtype) (decoder, error) {
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func decodeCompileToGetDecoder(typeptr uintptr, typ *rtype) (decoder, error) {
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if typeptr > maxTypeAddr {
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return d.compileToGetDecoderSlowPath(typeptr, typ)
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return decodeCompileToGetDecoderSlowPath(typeptr, typ)
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}
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index := typeptr - baseTypeAddr
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@ -21,8 +21,7 @@ func (d *Decoder) compileToGetDecoder(typeptr uintptr, typ *rtype) (decoder, err
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}
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decMu.RUnlock()
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d.structTypeToDecoder = map[uintptr]decoder{}
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dec, err := d.compileHead(typ)
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dec, err := decodeCompileHead(typ, map[uintptr]decoder{})
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if err != nil {
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return nil, err
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}
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@ -10,15 +10,13 @@ type interfaceDecoder struct {
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typ *rtype
|
||||
structName string
|
||||
fieldName string
|
||||
dec *Decoder
|
||||
}
|
||||
|
||||
func newInterfaceDecoder(dec *Decoder, typ *rtype, structName, fieldName string) *interfaceDecoder {
|
||||
func newInterfaceDecoder(typ *rtype, structName, fieldName string) *interfaceDecoder {
|
||||
return &interfaceDecoder{
|
||||
typ: typ,
|
||||
structName: structName,
|
||||
fieldName: fieldName,
|
||||
dec: dec,
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -84,7 +82,7 @@ func (d *interfaceDecoder) decodeStreamEmptyInterface(s *stream, p unsafe.Pointe
|
|||
stringType,
|
||||
newStringDecoder(d.structName, d.fieldName),
|
||||
interfaceMapType.Elem(),
|
||||
newInterfaceDecoder(d.dec, d.typ, d.structName, d.fieldName),
|
||||
newInterfaceDecoder(d.typ, d.structName, d.fieldName),
|
||||
d.structName,
|
||||
d.fieldName,
|
||||
).decodeStream(s, ptr); err != nil {
|
||||
|
@ -96,7 +94,7 @@ func (d *interfaceDecoder) decodeStreamEmptyInterface(s *stream, p unsafe.Pointe
|
|||
var v []interface{}
|
||||
ptr := unsafe.Pointer(&v)
|
||||
if err := newSliceDecoder(
|
||||
newInterfaceDecoder(d.dec, d.typ, d.structName, d.fieldName),
|
||||
newInterfaceDecoder(d.typ, d.structName, d.fieldName),
|
||||
d.typ,
|
||||
d.typ.Size(),
|
||||
d.structName,
|
||||
|
@ -190,7 +188,7 @@ func (d *interfaceDecoder) decodeStream(s *stream, p unsafe.Pointer) error {
|
|||
*(*interface{})(p) = nil
|
||||
return nil
|
||||
}
|
||||
decoder, err := d.dec.compileToGetDecoder(uintptr(unsafe.Pointer(typ)), typ)
|
||||
decoder, err := decodeCompileToGetDecoder(uintptr(unsafe.Pointer(typ)), typ)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -230,7 +228,7 @@ func (d *interfaceDecoder) decode(buf []byte, cursor int64, p unsafe.Pointer) (i
|
|||
**(**interface{})(unsafe.Pointer(&p)) = nil
|
||||
return cursor, nil
|
||||
}
|
||||
decoder, err := d.dec.compileToGetDecoder(uintptr(unsafe.Pointer(typ)), typ)
|
||||
decoder, err := decodeCompileToGetDecoder(uintptr(unsafe.Pointer(typ)), typ)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
@ -248,7 +246,7 @@ func (d *interfaceDecoder) decodeEmptyInterface(buf []byte, cursor int64, p unsa
|
|||
stringType,
|
||||
newStringDecoder(d.structName, d.fieldName),
|
||||
interfaceMapType.Elem(),
|
||||
newInterfaceDecoder(d.dec, d.typ, d.structName, d.fieldName),
|
||||
newInterfaceDecoder(d.typ, d.structName, d.fieldName),
|
||||
d.structName, d.fieldName,
|
||||
)
|
||||
cursor, err := dec.decode(buf, cursor, ptr)
|
||||
|
@ -261,7 +259,7 @@ func (d *interfaceDecoder) decodeEmptyInterface(buf []byte, cursor int64, p unsa
|
|||
var v []interface{}
|
||||
ptr := unsafe.Pointer(&v)
|
||||
dec := newSliceDecoder(
|
||||
newInterfaceDecoder(d.dec, d.typ, d.structName, d.fieldName),
|
||||
newInterfaceDecoder(d.typ, d.structName, d.fieldName),
|
||||
d.typ,
|
||||
d.typ.Size(),
|
||||
d.structName, d.fieldName,
|
||||
|
|
Loading…
Reference in New Issue