qubit-function 0.18.2

Functional programming traits and Box/Rc/Arc adapters for Rust, inspired by Java functional interfaces
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// =============================================================================
//    Copyright (c) 2025 - 2026 Haixing Hu.
//
//    SPDX-License-Identifier: Apache-2.0
//
//    Licensed under the Apache License, Version 2.0.
// =============================================================================
//! # Task Function Module
//!
//! Provides zero-argument task-oriented functional abstractions.
//!
//! `Callable` represents a reusable computation that returns `Result<R, E>`.
//! `Runnable` represents a reusable action that returns `Result<(), E>`. Both
//! abstractions are intentionally fallible and support task submission in
//! executor-style workflows.
//! `CallableWith` and `RunnableWith` are their mutable-input counterparts for
//! executor APIs that pass protected state into the task.
//!
//! One-time equivalents are also provided as `CallableOnce` and `RunnableOnce`
//! for move-only callable use cases.
//!
//! Semantic task traits remain thread-neutral. Choose `Box*` for movable
//! executor tasks, `LocalBox*` for local callbacks with non-`Send` captures,
//! and `Arc*` for shared synchronized tasks.

pub mod callable;
#[cfg(feature = "once")]
pub mod callable_once;
pub mod callable_with;
pub mod runnable;
#[cfg(feature = "once")]
pub mod runnable_once;
pub mod runnable_with;

#[cfg(feature = "stateful")]
pub use callable::ArcCallable;
pub use callable::BoxCallable;
pub use callable::Callable;
pub use callable::LocalBoxCallable;
#[cfg(feature = "rc")]
pub use callable::RcCallable;
#[cfg(feature = "once")]
pub use callable_once::BoxCallableOnce;
#[cfg(feature = "once")]
pub use callable_once::CallableOnce;
#[cfg(feature = "once")]
pub use callable_once::LocalBoxCallableOnce;
#[cfg(feature = "stateful")]
pub use callable_with::ArcCallableWith;
pub use callable_with::BoxCallableWith;
pub use callable_with::CallableWith;
pub use callable_with::LocalBoxCallableWith;
#[cfg(feature = "rc")]
pub use callable_with::RcCallableWith;
#[cfg(feature = "stateful")]
pub use runnable::ArcRunnable;
pub use runnable::BoxRunnable;
pub use runnable::LocalBoxRunnable;
#[cfg(feature = "rc")]
pub use runnable::RcRunnable;
pub use runnable::Runnable;
#[cfg(feature = "once")]
pub use runnable_once::BoxRunnableOnce;
#[cfg(feature = "once")]
pub use runnable_once::LocalBoxRunnableOnce;
#[cfg(feature = "once")]
pub use runnable_once::RunnableOnce;
#[cfg(feature = "stateful")]
pub use runnable_with::ArcRunnableWith;
pub use runnable_with::BoxRunnableWith;
pub use runnable_with::LocalBoxRunnableWith;
#[cfg(feature = "rc")]
pub use runnable_with::RcRunnableWith;
pub use runnable_with::RunnableWith;