golang获取调用者的方法名及所在源码行数
个人博客地址:
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
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