Trait ReadOnlySystemParam 

pub unsafe trait ReadOnlySystemParam: SystemParam { }

A SystemParam that only reads a given World.

Safety

This must only be implemented for SystemParam impls that exclusively read the World passed in to SystemParam::get_param

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ReadOnlySystemParam for ()

impl<'w, 's> ReadOnlySystemParam for DirectionalNavigation<'w>

where ResMut<'w, InputFocus>: ReadOnlySystemParam, Res<'w, DirectionalNavigationMap>: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for IsFocusedHelper<'w, 's>

where Query<'w, 's, &'static ChildOf>: ReadOnlySystemParam, Option<Res<'w, InputFocus>>: ReadOnlySystemParam, Option<Res<'w, InputFocusVisible>>: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam, P9: ReadOnlySystemParam, P10: ReadOnlySystemParam, P11: ReadOnlySystemParam, P12: ReadOnlySystemParam, P13: ReadOnlySystemParam, P14: ReadOnlySystemParam, P15: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam, P9: ReadOnlySystemParam, P10: ReadOnlySystemParam, P11: ReadOnlySystemParam, P12: ReadOnlySystemParam, P13: ReadOnlySystemParam, P14: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam, P9: ReadOnlySystemParam, P10: ReadOnlySystemParam, P11: ReadOnlySystemParam, P12: ReadOnlySystemParam, P13: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam, P9: ReadOnlySystemParam, P10: ReadOnlySystemParam, P11: ReadOnlySystemParam, P12: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam, P9: ReadOnlySystemParam, P10: ReadOnlySystemParam, P11: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam, P9: ReadOnlySystemParam, P10: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8, P9)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam, P9: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7, P8> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7, P8)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam, P8: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6, P7> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6, P7)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5, P6> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5, P6)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4, P5> ReadOnlySystemParam for (P0, P1, P2, P3, P4, P5)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam,

impl<P0, P1, P2, P3, P4> ReadOnlySystemParam for (P0, P1, P2, P3, P4)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam,

impl<P0, P1, P2, P3> ReadOnlySystemParam for (P0, P1, P2, P3)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam,

impl<P0, P1, P2> ReadOnlySystemParam for (P0, P1, P2)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam,

impl<P0, P1> ReadOnlySystemParam for (P0, P1)

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam,

impl<P> ReadOnlySystemParam for (P,)

where P: ReadOnlySystemParam,

impl<T> ReadOnlySystemParam for Option<T>

where T: ReadOnlySystemParam,

impl<T> ReadOnlySystemParam for PhantomData<T>

where T: ?Sized,

impl<T> ReadOnlySystemParam for Result<T, SystemParamValidationError>

where T: ReadOnlySystemParam,

Implementors

impl ReadOnlySystemParam for ExclusiveMarker

impl ReadOnlySystemParam for FilteredResources<'_, '_>

impl ReadOnlySystemParam for NonSendMarker

impl ReadOnlySystemParam for SystemChangeTick

impl ReadOnlySystemParam for SystemName

impl ReadOnlySystemParam for WorldId

impl<'a, 'b, D, F> ReadOnlySystemParam for Single<'a, 'b, D, F>

where D: ReadOnlyQueryData + 'static, F: QueryFilter + 'static,

impl<'a, T> ReadOnlySystemParam for Res<'a, T>

where T: Resource,

impl<'a> ReadOnlySystemParam for &'a Archetypes

impl<'a> ReadOnlySystemParam for &'a Bundles

impl<'a> ReadOnlySystemParam for &'a Components

impl<'a> ReadOnlySystemParam for &'a Entities

impl<'a> ReadOnlySystemParam for &'a EntityAllocator

impl<'a> ReadOnlySystemParam for &'a RemovedComponentMessages

impl<'s, T> ReadOnlySystemParam for Local<'s, T>

where T: FromWorld + Send + 'static,

impl<'w, 's, D, F> ReadOnlySystemParam for Populated<'w, 's, D, F>

where D: ReadOnlyQueryData + 'static, F: QueryFilter + 'static,

impl<'w, 's, D, F> ReadOnlySystemParam for Query<'w, 's, D, F>

where D: ReadOnlyQueryData + 'static, F: QueryFilter + 'static,

impl<'w, 's, D, F> ReadOnlySystemParam for ViewQuery<'w, 's, D, F>

where D: ReadOnlyQueryData + 'static, F: QueryFilter + 'static,

impl<'w, 's, M> ReadOnlySystemParam for MessageMutator<'w, 's, M>

where M: Message, Local<'s, MessageCursor<M>>: ReadOnlySystemParam, ResMut<'w, Messages<M>>: ReadOnlySystemParam,

impl<'w, 's, M> ReadOnlySystemParam for MessageReader<'w, 's, M>

where M: Message, Local<'s, MessageCursor<M>>: ReadOnlySystemParam, Res<'w, Messages<M>>: ReadOnlySystemParam,

impl<'w, 's, M> ReadOnlySystemParam for MessageWriter<'w, M>

where M: Message, ResMut<'w, Messages<M>>: ReadOnlySystemParam,

impl<'w, 's, P0, P1, P2, P3, P4, P5, P6, P7> ReadOnlySystemParam for ParamSet<'w, 's, (P0, P1, P2, P3, P4, P5, P6, P7)>

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam, P7: ReadOnlySystemParam,

impl<'w, 's, P0, P1, P2, P3, P4, P5, P6> ReadOnlySystemParam for ParamSet<'w, 's, (P0, P1, P2, P3, P4, P5, P6)>

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam, P6: ReadOnlySystemParam,

impl<'w, 's, P0, P1, P2, P3, P4, P5> ReadOnlySystemParam for ParamSet<'w, 's, (P0, P1, P2, P3, P4, P5)>

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam, P5: ReadOnlySystemParam,

impl<'w, 's, P0, P1, P2, P3, P4> ReadOnlySystemParam for ParamSet<'w, 's, (P0, P1, P2, P3, P4)>

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam, P4: ReadOnlySystemParam,

impl<'w, 's, P0, P1, P2, P3> ReadOnlySystemParam for ParamSet<'w, 's, (P0, P1, P2, P3)>

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam, P3: ReadOnlySystemParam,

impl<'w, 's, P0, P1, P2> ReadOnlySystemParam for ParamSet<'w, 's, (P0, P1, P2)>

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam, P2: ReadOnlySystemParam,

impl<'w, 's, P0, P1> ReadOnlySystemParam for ParamSet<'w, 's, (P0, P1)>

where P0: ReadOnlySystemParam, P1: ReadOnlySystemParam,

impl<'w, 's, P0> ReadOnlySystemParam for ParamSet<'w, 's, (P0,)>

where P0: ReadOnlySystemParam,

impl<'w, 's, P> ReadOnlySystemParam for StaticSystemParam<'w, 's, P>

where P: ReadOnlySystemParam + 'static,

impl<'w, 's, T> ReadOnlySystemParam for ComponentIdFor<'s, T>

where T: Component, Local<'s, InitComponentId<T>>: ReadOnlySystemParam,

impl<'w, 's, T> ReadOnlySystemParam for RemovedComponents<'w, 's, T>

where T: Component, ComponentIdFor<'s, T>: ReadOnlySystemParam, Local<'s, RemovedComponentReader<T>>: ReadOnlySystemParam, &'w RemovedComponentMessages: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for Commands<'w, 's>

where Deferred<'s, CommandQueue>: ReadOnlySystemParam, &'w Entities: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for Diagnostics<'w, 's>

where Res<'w, DiagnosticsStore>: ReadOnlySystemParam, Deferred<'s, DiagnosticsBuffer>: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for FallbackImageMsaa<'w>

where ResMut<'w, FallbackImageFormatMsaaCache>: ReadOnlySystemParam, Res<'w, RenderDevice>: ReadOnlySystemParam, Res<'w, RenderQueue>: ReadOnlySystemParam, Res<'w, DefaultImageSampler>: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for FlushCommands<'w>

where ResMut<'w, PendingCommandBuffers>: ReadOnlySystemParam, Res<'w, RenderQueue>: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for ParallelCommands<'w, 's>

where Deferred<'s, ParallelCommandQueue>: ReadOnlySystemParam, &'w EntityAllocator: ReadOnlySystemParam, &'w Entities: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for PickingMessageWriters<'w>

where MessageWriter<'w, Pointer<Cancel>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Click>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Press>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<DragDrop>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<DragEnd>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<DragEnter>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Drag>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<DragLeave>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<DragOver>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<DragStart>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Scroll>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Move>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Out>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Over>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Leave>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Enter>>: ReadOnlySystemParam, MessageWriter<'w, Pointer<Release>>: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for RenderContext<'w, 's>

where Deferred<'s, RenderContextState>: ReadOnlySystemParam, Res<'w, RenderDevice>: ReadOnlySystemParam, Option<Res<'w, DiagnosticsRecorder>>: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for TransformHelper<'w, 's>

where Query<'w, 's, &'static ChildOf>: ReadOnlySystemParam, Query<'w, 's, &'static Transform>: ReadOnlySystemParam,

impl<'w, 's> ReadOnlySystemParam for VisibilityExtractionSystemParam<'w, 's>

where Extract<'w, 's, Query<'static, 'static, &'static RenderEntity>>: ReadOnlySystemParam,

impl<'w, T> ReadOnlySystemParam for NonSend<'w, T>

impl<'w> ReadOnlySystemParam for &'w World

impl<P> ReadOnlySystemParam for Extract<'_, '_, P>

where P: ReadOnlySystemParam,

impl<T> ReadOnlySystemParam for Deferred<'_, T>

where T: SystemBuffer,

impl<T> ReadOnlySystemParam for If<T>

where T: ReadOnlySystemParam,