forked from gitea/gitea
113 lines
2.6 KiB
Go
113 lines
2.6 KiB
Go
package jsoniter
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import (
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"encoding/json"
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"github.com/modern-go/reflect2"
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"strconv"
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"unsafe"
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)
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type Number string
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// String returns the literal text of the number.
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func (n Number) String() string { return string(n) }
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// Float64 returns the number as a float64.
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func (n Number) Float64() (float64, error) {
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return strconv.ParseFloat(string(n), 64)
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}
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// Int64 returns the number as an int64.
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func (n Number) Int64() (int64, error) {
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return strconv.ParseInt(string(n), 10, 64)
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}
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func CastJsonNumber(val interface{}) (string, bool) {
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switch typedVal := val.(type) {
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case json.Number:
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return string(typedVal), true
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case Number:
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return string(typedVal), true
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}
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return "", false
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}
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var jsonNumberType = reflect2.TypeOfPtr((*json.Number)(nil)).Elem()
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var jsoniterNumberType = reflect2.TypeOfPtr((*Number)(nil)).Elem()
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func createDecoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValDecoder {
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if typ.AssignableTo(jsonNumberType) {
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return &jsonNumberCodec{}
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}
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if typ.AssignableTo(jsoniterNumberType) {
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return &jsoniterNumberCodec{}
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}
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return nil
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}
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func createEncoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValEncoder {
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if typ.AssignableTo(jsonNumberType) {
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return &jsonNumberCodec{}
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}
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if typ.AssignableTo(jsoniterNumberType) {
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return &jsoniterNumberCodec{}
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}
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return nil
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}
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type jsonNumberCodec struct {
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}
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func (codec *jsonNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
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switch iter.WhatIsNext() {
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case StringValue:
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*((*json.Number)(ptr)) = json.Number(iter.ReadString())
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case NilValue:
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iter.skipFourBytes('n', 'u', 'l', 'l')
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*((*json.Number)(ptr)) = ""
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default:
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*((*json.Number)(ptr)) = json.Number([]byte(iter.readNumberAsString()))
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}
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}
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func (codec *jsonNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
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number := *((*json.Number)(ptr))
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if len(number) == 0 {
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stream.writeByte('0')
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} else {
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stream.WriteRaw(string(number))
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}
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}
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func (codec *jsonNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
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return len(*((*json.Number)(ptr))) == 0
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}
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type jsoniterNumberCodec struct {
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}
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func (codec *jsoniterNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
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switch iter.WhatIsNext() {
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case StringValue:
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*((*Number)(ptr)) = Number(iter.ReadString())
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case NilValue:
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iter.skipFourBytes('n', 'u', 'l', 'l')
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*((*Number)(ptr)) = ""
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default:
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*((*Number)(ptr)) = Number([]byte(iter.readNumberAsString()))
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}
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}
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func (codec *jsoniterNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
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number := *((*Number)(ptr))
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if len(number) == 0 {
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stream.writeByte('0')
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} else {
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stream.WriteRaw(string(number))
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}
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}
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func (codec *jsoniterNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
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return len(*((*Number)(ptr))) == 0
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}
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