lego/vendor/github.com/json-iterator/go/reflect_slice.go
Ludovic Fernandez 6004e599ed Manage vendor (#557)
* feat: add dep configuration files.

* chore: add vendor folder.

* refactor: update Dockerfile.

* review: remove git from Dockerfile.

* review: remove RUN apk.

* review: dep status.

* feat: added .dockerignore
2018-05-30 16:28:41 -06:00

99 lines
2.6 KiB
Go

package jsoniter
import (
"fmt"
"github.com/modern-go/reflect2"
"io"
"unsafe"
)
func decoderOfSlice(ctx *ctx, typ reflect2.Type) ValDecoder {
sliceType := typ.(*reflect2.UnsafeSliceType)
decoder := decoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
return &sliceDecoder{sliceType, decoder}
}
func encoderOfSlice(ctx *ctx, typ reflect2.Type) ValEncoder {
sliceType := typ.(*reflect2.UnsafeSliceType)
encoder := encoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
return &sliceEncoder{sliceType, encoder}
}
type sliceEncoder struct {
sliceType *reflect2.UnsafeSliceType
elemEncoder ValEncoder
}
func (encoder *sliceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
if encoder.sliceType.UnsafeIsNil(ptr) {
stream.WriteNil()
return
}
length := encoder.sliceType.UnsafeLengthOf(ptr)
if length == 0 {
stream.WriteEmptyArray()
return
}
stream.WriteArrayStart()
encoder.elemEncoder.Encode(encoder.sliceType.UnsafeGetIndex(ptr, 0), stream)
for i := 1; i < length; i++ {
stream.WriteMore()
elemPtr := encoder.sliceType.UnsafeGetIndex(ptr, i)
encoder.elemEncoder.Encode(elemPtr, stream)
}
stream.WriteArrayEnd()
if stream.Error != nil && stream.Error != io.EOF {
stream.Error = fmt.Errorf("%v: %s", encoder.sliceType, stream.Error.Error())
}
}
func (encoder *sliceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
return encoder.sliceType.UnsafeLengthOf(ptr) == 0
}
type sliceDecoder struct {
sliceType *reflect2.UnsafeSliceType
elemDecoder ValDecoder
}
func (decoder *sliceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
decoder.doDecode(ptr, iter)
if iter.Error != nil && iter.Error != io.EOF {
iter.Error = fmt.Errorf("%v: %s", decoder.sliceType, iter.Error.Error())
}
}
func (decoder *sliceDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) {
c := iter.nextToken()
sliceType := decoder.sliceType
if c == 'n' {
iter.skipThreeBytes('u', 'l', 'l')
sliceType.UnsafeSetNil(ptr)
return
}
if c != '[' {
iter.ReportError("decode slice", "expect [ or n, but found "+string([]byte{c}))
return
}
c = iter.nextToken()
if c == ']' {
sliceType.UnsafeSet(ptr, sliceType.UnsafeMakeSlice(0, 0))
return
}
iter.unreadByte()
sliceType.UnsafeGrow(ptr, 1)
elemPtr := sliceType.UnsafeGetIndex(ptr, 0)
decoder.elemDecoder.Decode(elemPtr, iter)
length := 1
for c = iter.nextToken(); c == ','; c = iter.nextToken() {
idx := length
length += 1
sliceType.UnsafeGrow(ptr, length)
elemPtr = sliceType.UnsafeGetIndex(ptr, idx)
decoder.elemDecoder.Decode(elemPtr, iter)
}
if c != ']' {
iter.ReportError("decode slice", "expect ], but found "+string([]byte{c}))
return
}
}