Trait bo::lense::Lense[−][src]

pub trait Lense {
    type Object;
    type Value;
    fn get(&self, obj: &Self::Object) -> Self::Value;

    fn set(&self, obj: &Self::Object, val: &Self::Value) -> Self::Object;
}

Associated Types

type Object[src]

type Value[src]

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Required methods

fn get(&self, obj: &Self::Object) -> Self::Value[src]

fn set(&self, obj: &Self::Object, val: &Self::Value) -> Self::Object[src]

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Implementors

impl<'composite, OUTER, INNER, VALUE, L1, L2> Lense for Compose<'composite, OUTER, INNER, VALUE, L1, L2> where
    L1: 'composite + Lense<Object = OUTER, Value = INNER>,
    L2: 'composite + Lense<Object = INNER, Value = VALUE>, [src]

type Object = OUTER

type Value = VALUE

impl<O, V, G, S> Lense for L<O, V, G, S> where
    G: Fn(&O) -> V,
    S: Fn(&O, &V) -> O, [src]

type Object = O

type Value = V

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