error with code and message

gerror.go

package gerror

import (
    "fmt"
)

// Error with an code in int type
type Error struct {
    code    int
    message string
}

// NewError returns an Error object
func NewError(c int, m string) Error {
    return Error{c, m}
}

// Code returns the code of error
func (e Error) Code() int {
    return e.code
}

// Message returns the message of error
func (e Error) Message() string {
    return e.message
}

// Error implement Error() of error interface
func (e Error) Error() string {
    return fmt.Sprintf("code: %d, message: %s", e.code, e.message)
}

// Same returns true if error has the same code with another
func (e Error) Same(anoter Error) bool {
    return e.code == anoter.code
}