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Code Issues Releases Activity

#12 implement omitempty

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This commit is contained in:
Tao Wen
2017-03-08 07:38:25 -08:00
parent ceb8c8a733
commit d1aa59e34e
5 changed files with 150 additions and 10 deletions
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30
feature_reflect.go
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@ -22,6 +22,7 @@ type Decoder interface {
}
type Encoder interface {
isEmpty(ptr unsafe.Pointer) bool
encode(ptr unsafe.Pointer, stream *Stream)
encodeInterface(val interface{}, stream *Stream)
}
@ -59,6 +60,10 @@ func (encoder *funcEncoder) encodeInterface(val interface{}, stream *Stream) {
WriteToStream(val, stream, encoder)
}
func (encoder *funcEncoder) isEmpty(ptr unsafe.Pointer) bool {
return false
}
var DECODERS unsafe.Pointer
var ENCODERS unsafe.Pointer
@ -187,6 +192,14 @@ func (encoder *optionalEncoder) encodeInterface(val interface{}, stream *Stream)
WriteToStream(val, stream, encoder)
}
func (encoder *optionalEncoder) isEmpty(ptr unsafe.Pointer) bool {
if *((*unsafe.Pointer)(ptr)) == nil {
return true
} else {
return encoder.valueEncoder.isEmpty(*((*unsafe.Pointer)(ptr)))
}
}
type mapDecoder struct {
mapType reflect.Type
elemType reflect.Type
@ -240,6 +253,14 @@ func (encoder *mapEncoder) encodeInterface(val interface{}, stream *Stream) {
WriteToStream(val, stream, encoder)
}
func (encoder *mapEncoder) isEmpty(ptr unsafe.Pointer) bool {
mapInterface := encoder.mapInterface
mapInterface.word = ptr
realInterface := (*interface{})(unsafe.Pointer(&mapInterface))
realVal := reflect.ValueOf(*realInterface)
return realVal.Len() == 0
}
type mapInterfaceEncoder struct {
mapType reflect.Type
elemType reflect.Type
@ -269,6 +290,15 @@ func (encoder *mapInterfaceEncoder) encodeInterface(val interface{}, stream *Str
WriteToStream(val, stream, encoder)
}
func (encoder *mapInterfaceEncoder) isEmpty(ptr unsafe.Pointer) bool {
mapInterface := encoder.mapInterface
mapInterface.word = ptr
realInterface := (*interface{})(unsafe.Pointer(&mapInterface))
realVal := reflect.ValueOf(*realInterface)
return realVal.Len() == 0
}
// emptyInterface is the header for an interface{} value.
type emptyInterface struct {
typ *struct{}