qubit-argument 0.4.3

Structured, ownership-preserving argument validation for Rust applications
Documentation 
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// =============================================================================
//    Copyright (c) 2025 - 2026 Haixing Hu.
//
//    SPDX-License-Identifier: Apache-2.0
//
//    Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Pattern expectations used by string validation.

/// Whether a string is expected to match a pattern.
///
/// ```compile_fail
/// #![deny(unused_must_use)]
/// use qubit_argument::PatternExpectation;
///
/// PatternExpectation::Match;
/// ```
#[must_use]
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum PatternExpectation {
    /// Requires the string to match the pattern.
    Match,
    /// Requires the string not to match the pattern.
    NoMatch,
}