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// 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 (
"fmt"
)
type E[T any] struct {
v T
}
type S1 struct {
E[int]
v string
}
type Eint = E[int]
type Ebool = E[bool]
type S2 struct {
Eint
Ebool
v string
}
type S3 struct {
*E[int]
}
func main() {
s1 := S1{Eint{2}, "foo"}
if got, want := s1.E.v, 2; got != want {
panic(fmt.Sprintf("got %d, want %d", got, want))
}
s2 := S2{Eint{3}, Ebool{true}, "foo"}
if got, want := s2.Eint.v, 3; got != want {
panic(fmt.Sprintf("got %d, want %d", got, want))
}
var s3 S3
s3.E = &Eint{4}
if got, want := s3.E.v, 4; got != want {
panic(fmt.Sprintf("got %d, want %d", got, want))
}
}
|
