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// Copyright (c) 2022 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exerrors
import (
"errors"
"fmt"
)
type DualError struct {
High error
Low error
}
func NewDualError(high, low error) DualError {
return DualError{high, low}
}
func (err DualError) Is(other error) bool {
return errors.Is(other, err.High) || errors.Is(other, err.Low)
}
func (err DualError) Unwrap() error {
return err.Low
}
func (err DualError) Error() string {
return fmt.Sprintf("%v: %v", err.High, err.Low)
}
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