| // run |
| |
| // Copyright 2017 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 main |
| |
| import ( |
| "runtime" |
| ) |
| |
| func main() { |
| println(caller().frame.Function) |
| |
| // Used to erroneously print "main.call.name" instead of |
| // "main.main". |
| println(caller().name()) |
| } |
| |
| func caller() call { |
| var pcs [3]uintptr |
| n := runtime.Callers(1, pcs[:]) |
| frames := runtime.CallersFrames(pcs[:n]) |
| frame, _ := frames.Next() |
| frame, _ = frames.Next() |
| |
| return call{frame: frame} |
| } |
| |
| type call struct { |
| frame runtime.Frame |
| } |
| |
| func (c call) name() string { |
| return c.frame.Function |
| } |
