Traceable error for the go lang

Each error contains information where it is occurred and prints this information.
Usage example

package mytest  

import (
    "errors"
    "github.com/steptosky/go-traceable-error/errt"
)  

func myFunc() error {
    err := errors.New("test")
    if err != nil {
        return errt.NewFrom(err)
    }
    return nil
}

Result example:

    Trace: Error_test.go:21
        Error: err3
    Trace: Error_test.go:20
        Error: err2
    Trace: Error_test.go:19
        Error: err1
        Error: err0  // original go error, does not have trace information

    Trace: Error_test.go:36
        Error: err3
    Trace: Error_test.go:35
        Error: err2
    Trace: Error_test.go:34
        Error: err1
    Trace: Error_test.go:33
        Error: err0

Source printing is disabled

    Error: err3
    Error: err2
    Error: err1
    Error: err0

Installation

With go

go get github.com/steptosky/go-traceable-error/errt

With go dep

dep ensure -add github.com/steptosky/go-traceable-error/errt