Is it possible get information about caller function in Golang?

by

You can use runtime.Caller for easily retrieving information about the caller:

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

Example #1: Print caller file name and line number: https://play.golang.org/p/cdO4Z4ApHS

package main

import (
    "fmt"
    "runtime"
)

func foo() {
    _, file, no, ok := runtime.Caller(1)
    if ok {
        fmt.Printf("called from %s#%d\n", file, no)
    }
}

func main() {
    foo()
}

Example #2: Get more information with runtime.FuncForPC: https://play.golang.org/p/y8mpQq2mAv

package main

import (
    "fmt"
    "runtime"
)

func foo() {
    pc, _, _, ok := runtime.Caller(1)
    details := runtime.FuncForPC(pc)
    if ok && details != nil {
        fmt.Printf("called from %s\n", details.Name())
    }
}

func main() {
    foo()
}

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