golang获取调用者的方法名及所在源码行数

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golang获取调用者的方法名及所在源码行数 - 个人博客 (jxy.xj.cn)

代码如下

参数：skip是要提升的堆栈帧数，0-当前函数，1-上一层函数，....

返回值：

pc是uintptr这个返回的是函数指针

file是函数所在文件名目录

line所在行号

ok 是否可以获取到信息

  pc0, file0, line0, ok0 := runtime.Caller(0)
  logs.Error(" runtime.Caller(0) pc0:",pc0)
  logs.Error(" runtime.Caller(0) file0:",file0)
  logs.Error(" runtime.Caller(0) line0:",line0)
  logs.Error(" runtime.Caller(0) ok0:",ok0)
  f0 := runtime.FuncForPC(pc0)
  logs.Error(" runtime.FuncForPC(pc0):",f0.Name())
  pc1, file1, line1, ok1 := runtime.Caller(1)
  logs.Error(" runtime.Caller(1) pc1:",pc1)
  logs.Error(" runtime.Caller(1) file1:",file1)
  logs.Error(" runtime.Caller(1) line1:",line1)
  logs.Error(" runtime.Caller(1) ok1:",ok1)
  f1 := runtime.FuncForPC(pc1)
  logs.Error(" runtime.FuncForPC(pc1):",f1.Name())
  pc2, file2, line2, ok2 := runtime.Caller(2)
  logs.Error(" runtime.Caller(2) pc2:",pc2)
  logs.Error(" runtime.Caller(2) file2:",file2)
  logs.Error(" runtime.Caller(2) line2:",line2)
  logs.Error(" runtime.Caller(2) ok2:",ok2)
  f2 := runtime.FuncForPC(pc2)
  logs.Error(" runtime.FuncForPC(pc2):",f2.Name())

• 输出结果

 2020/11/02 10:19:29.568 [E]   runtime.Caller(0) pc0: 18149024
 2020/11/02 10:19:29.571 [E]   runtime.Caller(0) file0: 
   E:/svn/golang/src/eastwan.com/xy-icnc/service/base/base_service.go
 2020/11/02 10:19:29.571 [E]   runtime.Caller(0) line0: 1087
 2020/11/02 10:19:29.571 [E]   runtime.Caller(0) ok0: true
 2020/11/02 10:19:29.572 [E]   runtime.FuncForPC(pc0): 
   eastwan.com/xy-icnc/service/base.Logs
 2020/11/02 10:19:29.573 [E]   runtime.Caller(1) pc1: 20331156
 2020/11/02 10:19:29.574 [E]   runtime.Caller(1) file1: 
   E:/svn/golang/src/eastwan.com/xy-icnc/service/device_tpm/device_tpm_service.go
 2020/11/02 10:19:29.574 [E]   runtime.Caller(1) line1: 362
 2020/11/02 10:19:29.575 [E]   runtime.Caller(1) ok1: true
 2020/11/02 10:19:29.575 [E]   runtime.FuncForPC(pc1): 
   eastwan.com/xy-icnc/service/device_tpm.TPFunStatisticTabAntData.func2.1
 2020/11/02 10:19:29.575 [E]   runtime.Caller(2) pc2: 4449304
 2020/11/02 10:19:29.576 [E]   runtime.Caller(2) 
   file2: D:/Program Files/go/Go/src/runtime/panic.go
 2020/11/02 10:19:29.576 [E]   runtime.Caller(2) line2: 975
 2020/11/02 10:19:29.576 [E]   runtime.Caller(2) ok2: true
 2020/11/02 10:19:29.577 [E]   runtime.FuncForPC(pc2): runtime.gopanic

• 注意

  runtime.Caller 的通过不断迭代的方法获取信息，存在性能问题