go/core/errs/err_cause.go

/*
---------------------------------------------------------
   Project activething
   Active Thing (activething.com) git.activething.com/go

   File name  err_cause.go
   Created by DEV
   Modified   23/10/2023

   Copyright 2023 activething.com
---------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
*/

package errs

import "activething.com/go/gogo/core/opts"

type (

	// ErrCause
	// Define una estructura para almacenar un error y su causa previa
	// Implmenta error, Unwrap
	//
	ErrCause struct {
		error
		cause error
	}
)


func NewErrCause(err, cause error) *ErrCause {
	if err == nil {
		if cause == nil {
			return nil
		}
		return &ErrCause{error: cause}
	}
	return &ErrCause{error: err, cause: cause}
}


func (e ErrCause) WithInfo(options ...opts.OptionFnc[ErrInfo]) *ErrInfo {
	return NewErrInfo(e, options...) }


func (e ErrCause) Stack() StackTrace {
	return getStackTrace(e.cause) }

func (e ErrCause) Cause() error {
	return e.cause }


func (e ErrCause) Unwrap() error {
	return e.cause }



/*
   ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

   I HAVE NO DESIRE TO WALK ON WATER," SAID SIDDHARTA.
   "LET THE OLD SHRAMANAS SATISFY THEMSELVES WITH SUCH SKILLS.

   SIDDHARTA
   - HERMANN HESSE -

   :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

*/