golang/test/tailcall.go

30 lines
805 B
Go

// errorcheck -0 -d=tailcall=1
// Copyright 2024 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 p
// Test that when generating wrappers for methods, we generate a tail call to the pointer version of
// the method, if that method is not inlineable. We use go:noinline here to force the non-inlineability
// condition.
//go:noinline
func (f *Foo) Get2Vals() [2]int { return [2]int{f.Val, f.Val + 1} }
func (f *Foo) Get3Vals() [3]int { return [3]int{f.Val, f.Val + 1, f.Val + 2} }
type Foo struct{ Val int }
type Bar struct { // ERROR "tail call emitted for the method \(\*Foo\).Get2Vals wrapper"
int64
*Foo // needs a method wrapper
string
}
var i any
func init() {
i = Bar{1, nil, "first"}
}