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