mirror of
https://github.com/golang/go
synced 2024-11-18 01:24:49 -07:00
687f2acf6a
Conversions to regular concrete types should not be rewritten during stenciling. Fixes #47740 Change-Id: I2b45e22f962dcd2e18bd6cc876ebc0f850860822 Reviewed-on: https://go-review.googlesource.com/c/go/+/342989 Trust: Keith Randall <khr@golang.org> Trust: Dan Scales <danscales@google.com> Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
38 lines
704 B
Go
38 lines
704 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 "fmt"
|
|
|
|
type Exp[Ty any] interface {
|
|
Eval() Ty
|
|
}
|
|
|
|
type Lit[Ty any] Ty
|
|
|
|
func (lit Lit[Ty]) Eval() Ty { return Ty(lit) }
|
|
func (lit Lit[Ty]) String() string { return fmt.Sprintf("(lit %v)", Ty(lit)) }
|
|
|
|
type Eq[Ty any] struct {
|
|
a Exp[Ty]
|
|
b Exp[Ty]
|
|
}
|
|
|
|
func (e Eq[Ty]) String() string {
|
|
return fmt.Sprintf("(eq %v %v)", e.a, e.b)
|
|
}
|
|
|
|
var (
|
|
e0 = Eq[int]{Lit[int](128), Lit[int](64)}
|
|
e1 = Eq[bool]{Lit[bool](true), Lit[bool](true)}
|
|
)
|
|
|
|
func main() {
|
|
fmt.Printf("%v\n", e0)
|
|
fmt.Printf("%v\n", e1)
|
|
}
|