| Dan Willemsen | bc60c3c | 2021-12-15 01:09:00 -0800 | [diff] [blame] | 1 | // run -gcflags="-G=3" |
| 2 | |
| 3 | // Copyright 2021 The Go Authors. All rights reserved. |
| 4 | // Use of this source code is governed by a BSD-style |
| 5 | // license that can be found in the LICENSE file. |
| 6 | |
| 7 | package main |
| 8 | |
| 9 | import ( |
| 10 | "encoding/json" |
| 11 | ) |
| 12 | |
| 13 | type A[T any] struct { |
| 14 | F1 string `json:"t1"` |
| 15 | F2 T `json:"t2"` |
| 16 | B B `json:"t3"` |
| 17 | } |
| 18 | |
| 19 | type B struct { |
| 20 | F4 int `json:"t4"` |
| 21 | } |
| 22 | |
| 23 | func 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 | |
| 36 | func main() { |
| 37 | a[int]() |
| 38 | } |