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test/typeparam/struct.go
50 строк
801 B
Alan Donovan
cmd/compile: export/import materialized aliases
05 апр 2024, 19:29
05 апр 2024, 19:29
b24ec88
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// run // 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 Eint2 = Eint 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)) } }