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40 lines
1.2 KiB
40 lines
1.2 KiB
// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
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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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// Package cause provides functions for building wrapped errors.
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package cause
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import (
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"fmt"
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"strings"
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)
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// Wrap returns a new error wrapping cause with the additional message.
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func Wrap(cause error, msg string, args ...interface{}) error {
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s := fmt.Sprintf(msg, args...)
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return fmt.Errorf("%v. Cause: %w", s, cause)
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}
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// Merge merges all the errors into a single newline delimited error.
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func Merge(errs ...error) error {
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if len(errs) == 0 {
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return nil
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}
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strs := make([]string, len(errs))
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for i, err := range errs {
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strs[i] = err.Error()
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}
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return fmt.Errorf("%v", strings.Join(strs, "\n"))
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}
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