Source file test/typeparam/issue48317.go

     1  // run
     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  }
    39  

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