golang获取调用者的方法名及所在源码行数

golang获取调用者的方法名及所在源码行数

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· golang

golang 获取调用者的方法名及所在源码行数

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，存在性能问题