Trait Query

pub trait Query: Query {
    type Item<'world>;
}

Query signature: one access type or a tuple containing up to four access types.

Required Associated Types

type Item<'world>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<A: Access> Query for (A,)

type Item<'world> = (<A as Access>::Item<'world>,)

impl<A: Access, B: Access> Query for (A, B)

type Item<'world> = (<A as Access>::Item<'world>, <B as Access>::Item<'world>)

impl<A: Access, B: Access, C: Access> Query for (A, B, C)

type Item<'world> = (<A as Access>::Item<'world>, <B as Access>::Item<'world>, <C as Access>::Item<'world>)

impl<A: Access, B: Access, C: Access, D: Access> Query for (A, B, C, D)

type Item<'world> = (<A as Access>::Item<'world>, <B as Access>::Item<'world>, <C as Access>::Item<'world>, <D as Access>::Item<'world>)

Implementors

impl<A: Access> Query for A

type Item<'world> = <A as Access>::Item<'world>