Trait BuildableSystemParam

pub trait BuildableSystemParam: SystemParam {
    type Builder<'b>;

    // Required method
    fn build(
        world: &mut World,
        meta: &mut SystemMeta,
        func: impl FnOnce(&mut Self::Builder<'_>),
    ) -> Self::State;
}

A parameter that can be built with SystemBuilder

Required Associated Types

type Builder<'b>

A mutable reference to this type will be passed to the builder function

Required Methods

fn build( world: &mut World, meta: &mut SystemMeta, func: impl FnOnce(&mut Self::Builder<'_>), ) -> Self::State

Constructs SystemParam::State for Self using a given builder function

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.

Implementors

impl<'w, 's, D: QueryData + 'static, F: QueryFilter + 'static> BuildableSystemParam for Query<'w, 's, D, F>

type Builder<'b> = QueryBuilder<'b, D, F>

impl<'w, T: FromWorld + Send + 'static> BuildableSystemParam for Local<'w, T>

type Builder<'b> = T