go escape_goto 源码
golang escape_goto 代码
文件路径：/test/escape_goto.go
// errorcheck -0 -m -l
// 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.
// Test escape analysis for goto statements.
package escape
var x bool
func f1() {
var p *int
loop:
if x {
goto loop
}
// BAD: We should be able to recognize that there
// aren't any more "goto loop" after here.
p = new(int) // ERROR "escapes to heap"
_ = p
}
func f2() {
var p *int
if x {
loop:
goto loop
} else {
p = new(int) // ERROR "does not escape"
}
_ = p
}
func f3() {
var p *int
if x {
loop:
goto loop
}
p = new(int) // ERROR "does not escape"
_ = p
}
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