Struct BoxConditionalBiTransformer 

pub struct BoxConditionalBiTransformer<T, U, R> { /* private fields */ }

BoxConditionalBiTransformer struct

A conditional bi-transformer that only executes when a bi-predicate is satisfied. Uses BoxBiTransformer and BoxBiPredicate for single ownership semantics.

This type is typically created by calling BoxBiTransformer::when() and is designed to work with the or_else() method to create if-then-else logic.

Features

• Single Ownership: Not cloneable, consumes self on use
• Conditional Execution: Only transforms when bi-predicate returns true
• Chainable: Can add or_else branch to create if-then-else logic
• Implements BiTransformer: Can be used anywhere a BiTransformer is expected

Examples

With or_else Branch

use prism3_function::{BiTransformer, BoxBiTransformer};

let add = BoxBiTransformer::new(|x: i32, y: i32| x + y);
let multiply = BoxBiTransformer::new(|x: i32, y: i32| x * y);
let conditional = add.when(|x: &i32, y: &i32| *x > 0).or_else(multiply);

assert_eq!(conditional.apply(5, 3), 8);  // when branch executed
assert_eq!(conditional.apply(-5, 3), -15); // or_else branch executed

Author

Haixing Hu

Implementations

impl<T, U, R> BoxConditionalBiTransformer<T, U, R>

where T: 'static, U: 'static, R: 'static,

pub fn or_else<F>(self, else_transformer: F) -> BoxBiTransformer<T, U, R>

where F: BiTransformer<T, U, R> + 'static,

Adds an else branch

Executes the original transformer when the condition is satisfied, otherwise executes else_transformer.

Parameters

• else_transformer - The transformer for the else branch

Returns

Returns a new bi-transformer with if-then-else logic

Trait Implementations

impl<T, U, R> Debug for BoxConditionalBiTransformer<T, U, R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T, U, R> Display for BoxConditionalBiTransformer<T, U, R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.