cgp-tests 0.5.0

Context-generic programming meta crate
Documentation 
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use cgp::prelude::*;

#[cgp_type]
pub trait HasFooType {
    type Foo;
}

#[cgp_type]
pub trait HasBarType {
    type Bar;
}

#[cgp_getter]
pub trait HasFooBar: HasFooType + HasBarType {
    fn foo_bar(foo: &Self::Foo) -> &Self::Bar;
}

#[cgp_context]
pub struct App;

#[derive(HasField)]
pub struct Foo {
    pub bar: u32,
}

delegate_components! {
    AppComponents {
        FooTypeProviderComponent:
            UseType<Foo>,
        BarTypeProviderComponent:
            UseType<u32>,
        FooBarGetterComponent:
            UseField<Symbol!("bar")>,
    }
}

#[test]
fn test_non_self_getter() {
    let foo = Foo { bar: 42 };

    let bar = App::foo_bar(&foo);
    assert_eq!(bar, &42);
}