codekingpro/portable-devtools

1// run2 3// Copyright 2021 The Go Authors. All rights reserved.4// Use of this source code is governed by a BSD-style5// license that can be found in the LICENSE file.6 7package main8 9import (10	"encoding/json"11)12 13type A[T any] struct {14	F1 string `json:"t1"`15	F2 T      `json:"t2"`16	B  B      `json:"t3"`17}18 19type B struct {20	F4 int `json:"t4"`21}22 23func a[T any]() {24	data := `{"t1":"1","t2":2,"t3":{"t4":4}}`25	a1 := A[T]{}26	if err := json.Unmarshal([]byte(data), &a1); err != nil {27		panic(err)28	}29	if bytes, err := json.Marshal(&a1); err != nil {30		panic(err)31	} else if string(bytes) != data {32		panic(string(bytes))33	}34}35 36func main() {37	a[int]()38}39