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markerr's Introduction

markerr

GoDoc

Install

go get github.com/nametake/markerr

Usage

package main

import (
	"errors"
	"fmt"

	"github.com/nametake/markerr"
)

func main() {
	err := errors.New("cause")
	err = markerr.Mark(err, "warning")
	err = fmt.Errorf("first: %w", err)
	err = fmt.Errorf("second: %w", err)

	fmt.Println(err)                     // second: first: warning: cause
	fmt.Println(markerr.TakeMarker(err)) // warning cause
	err = errors.Unwrap(err)
	fmt.Println(err) // first: warning: cause
	err = errors.Unwrap(err)
	fmt.Println(err) // warning: cause
	err = errors.Unwrap(err)
	fmt.Println(err) // cause
}

markerr's People

Contributors

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