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Current Path: /opt/golang/1.17.2/src/encoding/json

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📁 ..
📄 bench_test.go(8.57 KB)
📄 decode.go(35.29 KB)
📄 decode_test.go(61.95 KB)
📄 encode.go(38.39 KB)
📄 encode_test.go(28.27 KB)
📄 example_marshaling_test.go(1.23 KB)
📄 example_test.go(6.06 KB)
📄 example_text_marshaling_test.go(1.23 KB)
📄 fold.go(3.39 KB)
📄 fold_test.go(2.89 KB)
📄 fuzz.go(798 B)
📄 indent.go(3.4 KB)
📄 number_test.go(2.2 KB)
📄 scanner.go(16.03 KB)
📄 scanner_test.go(6.16 KB)
📄 stream.go(12.92 KB)
📄 stream_test.go(11.18 KB)
📄 tables.go(4.16 KB)
📄 tagkey_test.go(2.67 KB)
📄 tags.go(1.05 KB)
📄 tags_test.go(565 B)
📁 testdata

Editing: example_text_marshaling_test.go

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package json_test

import (
	"encoding/json"
	"fmt"
	"log"
	"strings"
)

type Size int

const (
	Unrecognized Size = iota
	Small
	Large
)

func (s *Size) UnmarshalText(text []byte) error {
	switch strings.ToLower(string(text)) {
	default:
		*s = Unrecognized
	case "small":
		*s = Small
	case "large":
		*s = Large
	}
	return nil
}

func (s Size) MarshalText() ([]byte, error) {
	var name string
	switch s {
	default:
		name = "unrecognized"
	case Small:
		name = "small"
	case Large:
		name = "large"
	}
	return []byte(name), nil
}

func Example_textMarshalJSON() {
	blob := `["small","regular","large","unrecognized","small","normal","small","large"]`
	var inventory []Size
	if err := json.Unmarshal([]byte(blob), &inventory); err != nil {
		log.Fatal(err)
	}

counts := make(map[Size]int)
	for _, size := range inventory {
		counts[size] += 1
	}

fmt.Printf("Inventory Counts:\n* Small:        %d\n* Large:        %d\n* Unrecognized: %d\n",
		counts[Small], counts[Large], counts[Unrecognized])

// Output:
	// Inventory Counts:
	// * Small:        3
	// * Large:        2
	// * Unrecognized: 3
}

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Editing: example_text_marshaling_test.go

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