Module insert_event_resource

Checks for the Events<T> resource being manually inserted with App::init_resource() or App::insert_resource() instead of with App::add_event().

Motivation

Unless you have intentionally and knowingly initialized the Events<T> resource in this way, events and their resources should be initialized with App::add_event() because it automatically handles dropping old events. Just adding Events<T> makes no such guarantee, and will likely result in a memory leak.

For more information, please see the documentation on App::add_event() and Events<T>.

Example

#[derive(Event)]
struct MyEvent;

fn plugin(app: &mut App) {
    app.init_resource::<Events<MyEvent>>();
}

Use instead:

#[derive(Event)]
struct MyEvent;

fn plugin(app: &mut App) {
    app.add_event::<MyEvent>();
}

Structs

InsertEventResource

Statics

INSERT_EVENT_RESOURCE

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