Trait BinaryOperatorOnce 

pub trait BinaryOperatorOnce<T>: BiTransformerOnce<T, T, T> { }

BinaryOperatorOnce trait - marker trait for one-time use binary operators

A one-time use binary operator takes two values of type T and produces a value of the same type T, consuming self in the process. This trait extends BiTransformerOnce<T, T, T> to provide semantic clarity for same-type binary operations with consuming semantics. Equivalent to Java’s BinaryOperator<T> but with FnOnce semantics.

Automatic Implementation

This trait is automatically implemented for all types that implement BiTransformerOnce<T, T, T>, so you don’t need to implement it manually.

Type Parameters

• T - The type of both input values and the output value

Examples

Using in generic constraints

use prism3_function::{BinaryOperatorOnce, BiTransformerOnce};

fn combine<T, O>(a: T, b: T, op: O) -> T
where
    O: BinaryOperatorOnce<T>,
{
    op.apply_once(a, b)
}

let multiply = |x: i32, y: i32| x * y;
assert_eq!(combine(6, 7, multiply), 42);

Author

Hu Haixing

Implementors

impl<F, T> BinaryOperatorOnce<T> for F

where F: BiTransformerOnce<T, T, T>, T: 'static,

Blanket implementation of BinaryOperatorOnce for all BiTransformerOnce<T, T, T>

This automatically implements BinaryOperatorOnce<T> for any type that implements BiTransformerOnce<T, T, T>.

Author

Hu Haixing