golang获取调用者的方法名及所在源码行数

• 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())
  

• 输入结果

  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，性能较差不建议使用

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