feat(ecs): implement fallible observer systems #17731
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This commit builds on top of the work done in bevyengine#16589 and bevyengine#17051, by adding support for fallible observer systems. As with the previous work, the actual results of the observer system are suppressed by default, but the intention is to provide a way to handle errors in a global way. Until then, you can use a `PipeSystem` to manually handle results. Signed-off-by: Jean Mertz <[email protected]>
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You can now configure error handlers for fallible systems. These can be configured on several levels: - Globally via `App::set_systems_error_handler` - Per-schedule via `Schedule::set_error_handler` - Per-system via a piped system (this is existing functionality) The "fallible_systems" example demonstrates the new functionality. This builds on top of bevyengine#17731, bevyengine#16589, bevyengine#17051. Signed-off-by: Jean Mertz <[email protected]>
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@alice-i-cecile I suppose we’ll want this for 0.16 as well? |
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| /// An example of a system that calls several fallible functions with the questionmark operator. | ||
| /// An example of a system that calls several fallible functions with the question mark operator. | ||
| /// | ||
| /// See: <https://doc.rust-lang.org/reference/expressions/operator-expr.html#the-question-mark-operator> |
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| @@ -386,7 +386,8 @@ fn observer_system_runner<E: Event, B: Bundle, S: ObserverSystem<E, B>>( | |||
| unsafe { | |||
| (*system).update_archetype_component_access(world); | |||
| if (*system).validate_param_unsafe(world) { | |||
| (*system).run_unsafe(trigger, world); | |||
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Reading this block of code makes me feel like Im a kid running in the street 😆
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Signed-off-by: Jean Mertz <[email protected]>
Signed-off-by: Jean Mertz <[email protected]>
Resolved in 6e120a2. |
Signed-off-by: Jean Mertz <[email protected]>
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You can now configure error handlers for fallible systems. These can be configured on several levels: - Globally via `App::set_systems_error_handler` - Per-schedule via `Schedule::set_error_handler` - Per-system via a piped system (this is existing functionality) The default handler of panicking on error keeps the same behavior as before this commit. The "fallible_systems" example demonstrates the new functionality. This builds on top of #17731, #16589, #17051. --------- Signed-off-by: Jean Mertz <[email protected]>
Signed-off-by: Jean Mertz <[email protected]>
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This PR has been rebased on main, and now incorporates the "configurable error handling for fallible systems" from #17753. |
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This commit builds on top of the work done in #16589 and #17051, by adding support for fallible observer systems.
As with the previous work, the actual results of the observer system are suppressed for now, but the intention is to provide a way to handle errors in a global way.
Until then, you can use a
PipeSystemto manually handle results.