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99f24c33b0
Add proto.Marshal. Change-Id: If7254bb4c4cbbee782a2a163762f9fcf98e7ab08 Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/167388 Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package mapsort provides sorted access to maps.
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package mapsort
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import (
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"sort"
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"github.com/golang/protobuf/v2/reflect/protoreflect"
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)
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// Range iterates over every map entry in sorted key order,
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// calling f for each key and value encountered.
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func Range(mapv protoreflect.Map, keyKind protoreflect.Kind, f func(protoreflect.MapKey, protoreflect.Value) bool) {
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var keys []protoreflect.MapKey
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mapv.Range(func(key protoreflect.MapKey, _ protoreflect.Value) bool {
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keys = append(keys, key)
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return true
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})
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sort.Slice(keys, func(i, j int) bool {
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switch keyKind {
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case protoreflect.BoolKind:
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return !keys[i].Bool() && keys[j].Bool()
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case protoreflect.Int32Kind,
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protoreflect.Sint32Kind,
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protoreflect.Sfixed32Kind,
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protoreflect.Int64Kind,
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protoreflect.Sint64Kind,
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protoreflect.Sfixed64Kind:
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return keys[i].Int() < keys[j].Int()
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case protoreflect.Uint32Kind,
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protoreflect.Fixed32Kind,
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protoreflect.Uint64Kind,
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protoreflect.Fixed64Kind:
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return keys[i].Uint() < keys[j].Uint()
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default:
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return keys[i].String() < keys[j].String()
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}
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})
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for _, key := range keys {
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if !f(key, mapv.Get(key)) {
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break
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}
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}
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}
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