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 `BoxBinaryOperator` public type.

use super::BoxBiTransformer;

// ============================================================================
// Type Aliases for BinaryOperator (BiTransformer<T, T, T>)
// ============================================================================

/// A singly owned binary transformation closed over one type.
///
/// Represents a binary operator that takes two values of type `T` and produces
/// a value of the same type `T`, with single ownership semantics. Equivalent to
/// Java's `BinaryOperator<T>`.
///
/// # Examples
///
/// ```rust
/// use qubit_function::{BoxBinaryOperator, BiTransformer};
///
/// let add: BoxBinaryOperator<i32> = BoxBinaryOperator::new(|x, y| x + y);
/// assert_eq!(add.apply(20, 22), 42);
/// ```
pub type BoxBinaryOperator<T> = BoxBiTransformer<T, T, T>;