go/test/fixedbugs/issue27557.go

42 строки
949 B
Go

// errorcheck -0 -l -m
// Copyright 2019 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
var sink interface{}
func f1() {
var t T
f := t.noescape // ERROR "t.noescape does not escape"
f()
}
func f2() {
var t T // ERROR "moved to heap"
f := t.escape // ERROR "t.escape does not escape"
f()
}
func f3() {
var t T // ERROR "moved to heap"
f := t.returns // ERROR "t.returns does not escape"
sink = f()
}
type T struct{}
func (t *T) noescape() {} // ERROR "t does not escape"
func (t *T) escape() { sink = t } // ERROR "leaking param: t$"
func (t *T) returns() *T { return t } // ERROR "leaking param: t to result ~r0 level=0"
func (t *T) recursive() { // ERROR "leaking param: t$"
sink = t
var t2 T // ERROR "moved to heap"
f := t2.recursive // ERROR "t2.recursive does not escape"
f()
}