go/test/method7.go
Matthew Dempsky 950a56899a cmd/compile: fix method expressions with anonymous receivers
Method expressions with anonymous receiver types like "struct { T }.m"
require wrapper functions, which we weren't always creating. This in
turn resulted in linker errors.

This CL ensures that we generate wrapper functions for any anonymous
receiver types used in a method expression.

Fixes #22444.

Change-Id: Ia8ac27f238c2898965e57b82a91d959792d2ddd4
Reviewed-on: https://go-review.googlesource.com/105044
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-06 15:39:11 +00:00

56 lines
940 B
Go

// run
// Copyright 2017 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.
// Test forms of method expressions T.m where T is
// a literal type.
package main
var got, want string
type I interface {
m()
}
type S struct {
}
func (S) m() { got += " m()" }
func (S) m1(s string) { got += " m1(" + s + ")" }
type T int
func (T) m2() { got += " m2()" }
func main() {
// method expressions with named receiver types
I.m(S{})
want += " m()"
S.m1(S{}, "a")
want += " m1(a)"
// method expressions with literal receiver types
f := interface{ m1(string) }.m1
f(S{}, "b")
want += " m1(b)"
interface{ m1(string) }.m1(S{}, "c")
want += " m1(c)"
x := S{}
interface{ m1(string) }.m1(x, "d")
want += " m1(d)"
g := struct{ T }.m2
g(struct{ T }{})
want += " m2()"
if got != want {
panic("got" + got + ", want" + want)
}
}