Struct RcConditionalBiTransformer 

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

RcConditionalBiTransformer struct

A single-threaded conditional bi-transformer that only executes when a bi-predicate is satisfied. Uses RcBiTransformer and RcBiPredicate for shared ownership within a single thread.

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

Features

• Shared Ownership: Cloneable via Rc, multiple owners allowed
• Single-Threaded: Not thread-safe, cannot be sent across threads
• Conditional Execution: Only transforms when bi-predicate returns true
• No Lock Overhead: More efficient than ArcConditionalBiTransformer

Examples

use prism3_function::{BiTransformer, RcBiTransformer};

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

let conditional_clone = conditional.clone();

assert_eq!(conditional.apply(5, 3), 8);
assert_eq!(conditional_clone.apply(-5, 3), -15);

Author

Haixing Hu

Implementations

impl<T, U, R> RcConditionalBiTransformer<T, U, R>

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

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

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

Adds an else branch (single-threaded shared version)

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

Parameters

• else_transformer - The bi-transformer for the else branch, can be:
  • Closure: |x: T, y: U| -> R
  • RcBiTransformer<T, U, R>, BoxBiTransformer<T, U, R>
  • Any type implementing BiTransformer<T, U, R>

Returns

Returns the composed RcBiTransformer<T, U, R>

Examples

Using a closure (recommended)

use prism3_function::{BiTransformer, RcBiTransformer};

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

assert_eq!(conditional.apply(5, 3), 8);
assert_eq!(conditional.apply(-5, 3), -15);

Trait Implementations

impl<T, U, R> Clone for RcConditionalBiTransformer<T, U, R>

fn clone(&self) -> Self

Clones the conditional bi-transformer

Creates a new instance that shares the underlying bi-transformer and bi-predicate with the original instance.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.