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go/test/fixedbugs/issue4167.go
Rémy Oudompheng bcea0dd1d0 cmd/gc: fix inlining internal error with T.Method calls.
The compiler was confused when inlining a T.Method(f()) call
where f returns multiple values: support for this was marked
as TODO.

Variadic calls are not supported but are not inlined either.
Add a test preventively for that case.

Fixes #4167.

R=golang-dev, rsc, lvd
CC=golang-dev
https://golang.org/cl/6871043
2012-12-03 13:39:40 +01:00

51 lines
877 B
Go

// run
// Copyright 2012 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.
// Issue 4167: inlining of a (*T).Method expression taking
// its arguments from a multiple return breaks the compiler.
package main
type pa []int
type p int
func (this *pa) func1() (v *p, c int) {
for _ = range *this {
c++
}
v = (*p)(&c)
return
}
func (this *pa) func2() p {
return (*p).func3(this.func1())
}
func (this *p) func3(f int) p {
return *this
}
func (this *pa) func2dots() p {
return (*p).func3(this.func1())
}
func (this *p) func3dots(f ...int) p {
return *this
}
func main() {
arr := make(pa, 13)
length := arr.func2()
if int(length) != len(arr) {
panic("length != len(arr)")
}
length = arr.func2dots()
if int(length) != len(arr) {
panic("length != len(arr)")
}
}