Struct ClosureRef 

pub struct ClosureRef<State, Input, Output> { /* private fields */ }

A Closure does not own its state, and only refers to the state when called.

Correspond to unnamable closures like:

|...| { /* only refers captured variables */ }

Examples:

// state refered as reference in body, but moved to the closure
let add_ten:ClosureRef<i32,(i32,),i32>
    = closure!(ref state=10 => move |i| i+*state);
assert_eq!(add_ten.stable_call((1,)),11);
let mut offset:ClosureRef<Point,(i32,i32),Point>
    = closure!(ref state=Point::new(10,20) => move |a,b| Point::new(state.x+a,state.y+b));
let p = offset.stable_call_mut((1,2));
assert_eq!(p.x,11);
assert_eq!(p.y,22);

Implementations

impl<State, Input, Output> ClosureRef<State, Input, Output>

pub fn new(f: fn(&State, Input) -> Output, t: State) -> Self

pub fn call_with_state(&self, s: &State, i: Input) -> Output

Trait Implementations

impl<State, Input, Output> Clone for ClosureRef<State, Input, Output>

where State: Clone,

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<State, Input, Output> StableFn<Input> for ClosureRef<State, Input, Output>

fn stable_call(&self, i: Input) -> Output

impl<State, Input, Output> StableFnMut<Input> for ClosureRef<State, Input, Output>

fn stable_call_mut(&mut self, i: Input) -> Output

impl<State, Input, Output> StableFnOnce<Input> for ClosureRef<State, Input, Output>

type Output = Output

fn stable_call_once(self, i: Input) -> Output

impl<State, Input, Output> Copy for ClosureRef<State, Input, Output>

where State: Copy,