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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
96 lines
3.0 KiB
Go
96 lines
3.0 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:build goexperiment.jsonv2
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package json
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import (
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"bytes"
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jsonv1 "encoding/json" //nolint:depguard // this package wraps it
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"encoding/json/jsontext" //nolint:depguard // this package wraps it
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jsonv2 "encoding/json/v2" //nolint:depguard // this package wraps it
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"io"
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)
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// JSONv2 implements Interface via encoding/json/v2
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// Requires GOEXPERIMENT=jsonv2 to be set at build time
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type JSONv2 struct {
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marshalOptions jsonv2.Options
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marshalKeepOptionalEmptyOptions jsonv2.Options
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unmarshalOptions jsonv2.Options
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unmarshalCaseInsensitiveOptions jsonv2.Options
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}
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var jsonV2 JSONv2
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func init() {
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commonMarshalOptions := []jsonv2.Options{
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jsonv2.FormatNilSliceAsNull(true),
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jsonv2.FormatNilMapAsNull(true),
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}
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jsonV2.marshalOptions = jsonv2.JoinOptions(commonMarshalOptions...)
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jsonV2.unmarshalOptions = jsonv2.DefaultOptionsV2()
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// By default, "json/v2" omitempty removes all `""` empty strings, no matter where it comes from.
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// v1 has a different behavior: if the `""` is from a null pointer, or a Marshal function, it is kept.
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// Golang issue: https://github.com/golang/go/issues/75623 encoding/json/v2: unable to make omitempty work with pointer or Optional type with goexperiment.jsonv2
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jsonV2.marshalKeepOptionalEmptyOptions = jsonv2.JoinOptions(append(commonMarshalOptions, jsonv1.OmitEmptyWithLegacySemantics(true))...)
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// Some legacy code uses case-insensitive matching (for example: parsing oci.ImageConfig)
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jsonV2.unmarshalCaseInsensitiveOptions = jsonv2.JoinOptions(jsonv2.MatchCaseInsensitiveNames(true))
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}
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func getDefaultJSONHandler() Interface {
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return &jsonV2
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}
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func MarshalKeepOptionalEmpty(v any) ([]byte, error) {
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return jsonv2.Marshal(v, jsonV2.marshalKeepOptionalEmptyOptions)
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}
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func (j *JSONv2) Marshal(v any) ([]byte, error) {
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return jsonv2.Marshal(v, j.marshalOptions)
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}
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func (j *JSONv2) Unmarshal(data []byte, v any) error {
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return jsonv2.Unmarshal(data, v, j.unmarshalOptions)
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}
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func (j *JSONv2) NewEncoder(writer io.Writer) Encoder {
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return &jsonV2Encoder{writer: writer, opts: j.marshalOptions}
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}
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func (j *JSONv2) NewDecoder(reader io.Reader) Decoder {
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return &jsonV2Decoder{reader: reader, opts: j.unmarshalOptions}
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}
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// Indent implements Interface using standard library (JSON v2 doesn't have Indent yet)
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func (*JSONv2) Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
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return jsonv1.Indent(dst, src, prefix, indent)
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}
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type jsonV2Encoder struct {
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writer io.Writer
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opts jsonv2.Options
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}
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func (e *jsonV2Encoder) Encode(v any) error {
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return jsonv2.MarshalWrite(e.writer, v, e.opts)
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}
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type jsonV2Decoder struct {
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reader io.Reader
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opts jsonv2.Options
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}
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func (d *jsonV2Decoder) Decode(v any) error {
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return jsonv2.UnmarshalRead(d.reader, v, d.opts)
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}
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func NewDecoderCaseInsensitive(reader io.Reader) Decoder {
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return &jsonV2Decoder{reader: reader, opts: jsonV2.unmarshalCaseInsensitiveOptions}
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}
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type Value = jsontext.Value
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