mirror of
https://github.com/golang/go
synced 2024-11-19 12:04:43 -07:00
39 lines
664 B
Go
39 lines
664 B
Go
|
// run -gcflags="-G=3"
|
||
|
|
|
||
|
|
// Copyright 2021 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 main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/json"
|
||
|
|
)
|
||
|
|
|
||
|
|
type A[T any] struct {
|
||
|
|
F1 string `json:"t1"`
|
||
|
|
F2 T `json:"t2"`
|
||
|
|
B B `json:"t3"`
|
||
|
|
}
|
||
|
|
|
||
|
|
type B struct {
|
||
|
|
F4 int `json:"t4"`
|
||
|
|
}
|
||
|
|
|
||
|
|
func a[T any]() {
|
||
|
|
data := `{"t1":"1","t2":2,"t3":{"t4":4}}`
|
||
|
|
a1 := A[T]{}
|
||
|
|
if err := json.Unmarshal([]byte(data), &a1); err != nil {
|
||
|
|
panic(err)
|
||
|
|
}
|
||
|
|
if bytes, err := json.Marshal(&a1); err != nil {
|
||
|
|
panic(err)
|
||
|
|
} else if string(bytes) != data {
|
||
|
|
panic(string(bytes))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
a[int]()
|
||
|
|
}
|