core_crypto/error/
wrapper.rs

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// Wire
// Copyright (C) 2022 Wire Swiss GmbH

// This program 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.

// This program 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 this program. If not, see http://www.gnu.org/licenses/.

/// A wrapped operation failed, but we captured some context about what was happening
#[derive(Debug, thiserror::Error)]
#[error("{context}")]
pub struct WrappedContextualError<T> {
    /// What was happening in the caller
    pub context: &'static str,
    /// What happened
    #[source]
    pub source: T,
}

impl<T> WrappedContextualError<T> {
    pub fn wrap<E>(context: &'static str) -> impl FnOnce(E) -> Self
    where
        E: Into<T>,
    {
        move |source| Self {
            source: source.into(),
            context,
        }
    }
}