Golang 实现获取当前函数名称和文件行号等操作

// 获取正在运行的函数名
func runFuncName()string{
    pc := make([]uintptr,1)
    runtime.Callers(2,pc)
    f := runtime.FuncForPC(pc[0])
    return f.Name()
}

package main 
import(
    "fmt"
    "runtime"
)
 
// 获取正在运行的函数名
func runFuncName()string{
    pc := make([]uintptr,1)
    runtime.Callers(2,pc)
    f := runtime.FuncForPC(pc[0])
    return f.Name()
}
 
func test1(){
    i:=0
    fmt.Println("i =",i)
    fmt.Println("FuncName1 =",runFuncName())
}
 
func test2(){
    i:=1
    fmt.Println("i =",i)
    fmt.Println("FuncName2 =",runFuncName())
}
 
func main(){
    fmt.Println("打印运行中的函数名")
    test1()
    test2()
}

func Caller(skip int) (pc uintptr, file string, line int, ok bool) {

_, file, line, ok := runtime.Caller(1)

- runtime
- -file1.go
- -file2.go
- -main.go

package main
import (
	"fmt"
	"path"
	"runtime"
)
func main(){
	name, funcName, line := f2(0)
	fmt.Printf("file:%v;function:%v;line:%d",name,funcName,line)
}
func getLocation(skip int)(fileName ,funcName string ,line int){
	pc, file, line, ok := runtime.Caller(skip)
	if !ok {
		fmt.Println("get info failed")
		return
	}
	fmt.Println(pc,file)
	fileName = path.Base(file)
	funcName = runtime.FuncForPC(pc).Name()
	return
}

package main
func f1(skip int)(fileName ,funcName string ,line int){
 fileName, funcName, line = getLocation(skip)
 return
}

package main
func f2(skip int)(fileName ,funcName string ,line int){
 return f1(skip)
}

func main(){
 name, funcName, line := f2(3)
 fmt.Printf("file:%v;function:%v;line:%d",name,funcName,line)
 //output:file:main.go;function:main.main;line:10
}