qubit_fs/spi/copy_decline_reason.rs
1// =============================================================================
2// Copyright (c) 2026 Haixing Hu.
3//
4// SPDX-License-Identifier: Apache-2.0
5//
6// Licensed under the Apache License, Version 2.0.
7// =============================================================================
8// facade.
9//! Provider copy-decline reasons.
10
11/// Reason a provider declined its optional copy fast path.
12///
13/// # Examples
14///
15/// ```rust
16/// use qubit_fs::spi::CopyDeclineReason;
17///
18/// assert!(matches!(CopyDeclineReason::NotImplemented, CopyDeclineReason::NotImplemented));
19/// ```
20#[derive(Clone, Copy, Debug, Eq, PartialEq)]
21#[non_exhaustive]
22pub enum CopyDeclineReason {
23 /// The provider does not implement a copy primitive.
24 NotImplemented,
25 /// The provider primitive cannot safely serve this particular request.
26 NotApplicable,
27}