forked from moisespsena-go/ugo
/
json.go
215 lines (189 loc) · 4.46 KB
/
json.go
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// Copyright (c) 2022-2023 Ozan Hacıbekiroğlu.
// Use of this source code is governed by a MIT License
// that can be found in the LICENSE file.
package json
import (
"encoding/json"
"fmt"
"reflect"
"github.com/gad-lang/gad"
"github.com/gad-lang/gad/registry"
)
func init() {
registry.RegisterObjectConverter(reflect.TypeOf(json.RawMessage(nil)),
func(in any) (any, bool) {
rm := in.(json.RawMessage)
if rm == nil {
return &RawMessage{Value: gad.Bytes{}}, true
}
return &RawMessage{Value: rm}, true
},
)
registry.RegisterAnyConverter(reflect.TypeOf((*RawMessage)(nil)),
func(in any) (any, bool) {
rm := in.(*RawMessage)
return json.RawMessage(rm.Value), true
},
)
}
// gad:doc
// ## Important Note
// All numeric types is unmarshaled to `gad.Decimal` type.
// gad:doc
// ## Types
// ### encoderOptions
//
// ToInterface Type
//
// ```go
// // EncoderOptions represents the encoding options (quote, html escape) to
// // Marshal any Object.
// type EncoderOptions struct {
// gad.ObjectImpl
// Value gad.Object
// Quote bool
// EscapeHTML bool
// }
// ```
var EncoderOptionsType = &gad.BuiltinObjType{
NameValue: "encoderOptions",
}
// EncoderOptions represents the encoding options (quote, html escape) to
// Marshal any Object.
type EncoderOptions struct {
gad.ObjectImpl
Value gad.Object
Quote bool
EscapeHTML bool
}
func (eo *EncoderOptions) Type() gad.ObjectType {
return EncoderOptionsType
}
// ToString implements gad.Object interface.
func (eo *EncoderOptions) ToString() string {
return fmt.Sprintf("encoderOptions{Quote:%t EscapeHTML:%t Value:%s}",
eo.Quote, eo.EscapeHTML, eo.Value)
}
// gad:doc
// #### encoderOptions Getters
//
//
// | Selector | Return Type |
// |:----------|:------------|
// |.Value | any |
// |.Quote | bool |
// |.EscapeHTML| bool |
// IndexGet implements gad.Object interface.
func (eo *EncoderOptions) IndexGet(_ *gad.VM, index gad.Object) (ret gad.Object, err error) {
switch index.ToString() {
case "Value":
ret = eo.Value
case "Quote":
ret = gad.Bool(eo.Quote)
case "EscapeHTML":
ret = gad.Bool(eo.EscapeHTML)
default:
ret = gad.Nil
}
return
}
// gad:doc
// #### encoderOptions Setters
//
//
// | Selector | Value Type |
// |:----------|:------------|
// |.Value | any |
// |.Quote | bool |
// |.EscapeHTML| bool |
// IndexSet implements gad.Object interface.
func (eo *EncoderOptions) IndexSet(_ *gad.VM, index, value gad.Object) error {
switch index.ToString() {
case "Value":
eo.Value = value
case "Quote":
eo.Quote = !value.IsFalsy()
case "EscapeHTML":
eo.EscapeHTML = !value.IsFalsy()
default:
return gad.ErrInvalidIndex
}
return nil
}
// gad:doc
// ## Types
// ### rawMessage
//
// ToInterface Type
//
// ```go
// // RawMessage represents raw encoded json message to directly use value of
// // MarshalJSON without encoding.
// type RawMessage struct {
// gad.ObjectImpl
// Value []byte
// }
// ```
var RawMessageType = &gad.BuiltinObjType{
NameValue: "rawMessage",
}
// RawMessage represents raw encoded json message to directly use value of
// MarshalJSON without encoding.
type RawMessage struct {
gad.ObjectImpl
Value []byte
}
var _ Marshaler = (*RawMessage)(nil)
func (rm *RawMessage) Type() gad.ObjectType {
return RawMessageType
}
// ToString implements gad.Object interface.
func (rm *RawMessage) ToString() string {
return string(rm.Value)
}
// MarshalJSON implements Marshaler interface and returns rm as the JSON
// encoding of rm.Value.
func (rm *RawMessage) MarshalJSON() ([]byte, error) {
if rm == nil || rm.Value == nil {
return []byte("null"), nil
}
return rm.Value, nil
}
// gad:doc
// #### rawMessage Getters
//
//
// | Selector | Return Type |
// |:----------|:------------|
// |.Value | bytes |
// IndexGet implements gad.Object interface.
func (rm *RawMessage) IndexGet(_ *gad.VM, index gad.Object) (ret gad.Object, err error) {
switch index.ToString() {
case "Value":
ret = gad.Bytes(rm.Value)
default:
ret = gad.Nil
}
return
}
// gad:doc
// #### rawMessage Setters
//
//
// | Selector | Value Type |
// |:----------|:------------|
// |.Value | bytes |
// IndexSet implements gad.Object interface.
func (rm *RawMessage) IndexSet(_ *gad.VM, index, value gad.Object) error {
switch index.ToString() {
case "Value":
if v, ok := gad.ToBytes(value); ok {
rm.Value = v
} else {
return gad.ErrType
}
default:
return gad.ErrInvalidIndex
}
return nil
}