Struct bevy::ecs::schedule::ReportExecutionOrderAmbiguities
[−]pub struct ReportExecutionOrderAmbiguities;Expand description
When this resource is present in the App’s Resources,
each SystemStage will log a report containing
pairs of systems with ambiguous execution order.
Systems that access the same Component or Resource within the same stage risk an ambiguous order that could result in logic bugs, unless they have an explicit execution ordering constraint between them.
This occurs because, in the absence of explicit constraints, systems are executed in an unstable, arbitrary order within each stage that may vary between runs and frames.
Some ambiguities reported by the ambiguity checker may be warranted (to allow two systems to run
without blocking each other) or spurious, as the exact combination of archetypes used may
prevent them from ever conflicting during actual gameplay. You can resolve the warnings produced
by the ambiguity checker by adding .before or .after to one of the conflicting systems
referencing the other system to force a specific ordering.
The checker may report a system more times than the amount of constraints it would actually need to have unambiguous order with regards to a group of already-constrained systems.
Trait Implementations
impl Default for ReportExecutionOrderAmbiguities
impl Default for ReportExecutionOrderAmbiguities
fn default() -> ReportExecutionOrderAmbiguities
fn default() -> ReportExecutionOrderAmbiguities
Returns the “default value” for a type. Read more
Auto Trait Implementations
impl RefUnwindSafe for ReportExecutionOrderAmbiguities
impl Send for ReportExecutionOrderAmbiguities
impl Sync for ReportExecutionOrderAmbiguities
impl Unpin for ReportExecutionOrderAmbiguities
impl UnwindSafe for ReportExecutionOrderAmbiguities
Blanket Implementations
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