qubit-function 0.16.0

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.
// =============================================================================
//! Defines the `ArcBinaryFunction` public type.

use super::ArcBiFunction;

/// A shared thread-safe binary function with matching input types.
///
/// Represents a thread-safe binary function that takes two values of type `T`
/// and produces a value of type `R`. Similar to Java's `BiFunction<T, T, R>`
/// with shared, thread-safe ownership.
///
/// # Examples
///
/// ```rust
/// use qubit_function::{ArcBinaryFunction, BiFunction};
///
/// let multiply: ArcBinaryFunction<i32, i32> = ArcBinaryFunction::new(|x: &i32, y: &i32| *x * *y);
/// let multiply_clone = multiply.clone();
/// assert_eq!(multiply.apply(&6, &7), 42);
/// assert_eq!(multiply_clone.apply(&6, &7), 42);
/// ```
pub type ArcBinaryFunction<T, R> = ArcBiFunction<T, T, R>;