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63 lines
1.5 KiB
63 lines
1.5 KiB
// ------------------------------------------------------------------------
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// Project active2
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// Active Thing (activething.com) git.activething.com/go
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//
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// File name err_cause.go
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// Created by DEV
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// Modified 20/03/2024
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//
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// Copyright 2024 activething.com
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// ------------------------------------------------------------------------
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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package errs
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import "fmt"
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type (
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ErrCause struct {
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error
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cause error
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}
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)
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func NewErrCause (err, cause error) *ErrCause {
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if err == nil {
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if cause == nil {
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return nil
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}
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return &ErrCause{ error: cause }
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}
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return &ErrCause {
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error: err,
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cause: cause,
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}
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}
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func (e ErrCause) Cause () error {
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return e.cause }
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func (e ErrCause) Unwrap() error {
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return e.cause }
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func (e ErrCause) String() string {
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return fmt.Sprintf("%s <- %s",e.Error(),e.cause.Error()) }
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func (e ErrCause) ToErrInfo (options ...ErrInfoFnc) *ErrInfo {
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return NewErrInfo(e,options...) } |