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Support fallible one-shot systems #19677

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#19678
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Support fallible one-shot systems#19677
#19678
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A-ECSEntities, components, systems, and eventsC-FeatureA new feature, making something new possibleD-ModestA "normal" level of difficulty; suitable for simple features or challenging fixesM-Needs-Release-NoteWork that should be called out in the blog due to impactS-Ready-For-ImplementationThis issue is ready for an implementation PR. Go for it!
@Pascualex

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@Pascualex
Pascualex
opened on Jun 16, 2025

What problem does this solve or what need does it fill?

v0.16 introduced Unified ECS Error Handling. This new approach works well for scheduled systems and observers but doesn't seem to be properly supported for one-shot systems.

What solution would you like?

Support returning Result from one-shot systems.

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    A-ECSEntities, components, systems, and eventsC-FeatureA new feature, making something new possibleD-ModestA "normal" level of difficulty; suitable for simple features or challenging fixesM-Needs-Release-NoteWork that should be called out in the blog due to impactS-Ready-For-ImplementationThis issue is ready for an implementation PR. Go for it!

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