exceptions.go

package main 

import (
	"fmt"
	"runtime"
)

func catchPanic(err *error, functionName string) {

  // recover gets the last panic		
  if r := recover(); r != nil {
    // Capture the stack trace
    buf := make([]byte, 10000)
    runtime.Stack(buf, false)

    fmt.Printf("%s : Stack Trace : %s", functionName, string(buf)) 

    if err != nil {
      *err = fmt.Errorf("%v", r)
    }
  }
}

func test(){
	/**
	 * Defer is a special function that executes after the current function executes!
	 * Deferers are executed in a LAST-IN FIRST-OUT FASHION 
	 * (stacks all panic calls)
	 */
	var err *error
	defer catchPanic(err, "main")
		
	panic("SOMETHING WENT TERRIBLY WRONG!!!")
}

func main(){
	/*var err error 
	defer catchPanic(&err, "main")*/

	test()

	fmt.Println("\n\nthe code continues :P\n\n")

}