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https://github.com/golang/go
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38 lines
658 B
Go
38 lines
658 B
Go
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// run
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"runtime"
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)
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func main() {
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println(caller().frame.Function)
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// Used to erroneously print "main.call.name" instead of
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// "main.main".
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println(caller().name())
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}
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func caller() call {
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var pcs [3]uintptr
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n := runtime.Callers(1, pcs[:])
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frames := runtime.CallersFrames(pcs[:n])
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frame, _ := frames.Next()
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frame, _ = frames.Next()
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return call{frame: frame}
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}
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type call struct {
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frame runtime.Frame
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}
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func (c call) name() string {
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return c.frame.Function
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}
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