go lostcancel 源码
golang lostcancel 代码
文件路径：/src/cmd/vet/testdata/lostcancel/lostcancel.go
// Copyright 2016 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 lostcancel
import "context"
func _() {
var _, cancel = context.WithCancel(context.Background()) // ERROR "the cancel function is not used on all paths \(possible context leak\)"
if false {
_ = cancel
}
} // ERROR "this return statement may be reached without using the cancel var defined on line 10"
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