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errors.go
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/
errors.go
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// Copyright (c) 2024 Proton AG
//
// This file is part of Proton Mail Bridge.
//
// Proton Mail Bridge is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Proton Mail Bridge is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
package internal
import (
"errors"
"fmt"
)
// ErrCause returns the cause of the error, the inner-most error in the wrapped chain.
func ErrCause(err error) error {
cause := err
for errors.Unwrap(cause) != nil {
cause = errors.Unwrap(cause)
}
return cause
}
func ErrCauseType(err error) string {
return fmt.Sprintf("%T", ErrCause(err))
}