
Aaron Alaniz developed Metro AssistedFactory support in the slackhq/circuit repository, enabling runtime injection of Navigator and Screen instances into presenters for Metro projects. He implemented this by extending the Circuit code generation pipeline, introducing METRO codegen mode handling within the CircuitSymbolProcessorProvider, and updating annotation processing logic to support assisted injection scenarios. Using Kotlin and Java, Aaron focused on annotation processing and dependency injection to ensure seamless integration with Metro’s @AssistedFactory annotation. The work included comprehensive test updates to validate new injection paths, reflecting a focused and in-depth approach to feature delivery within a targeted, well-scoped commit.

June 2025: Delivered Metro AssistedFactory support in Circuit codegen, enabling runtime injection of Navigator and Screen instances into presenters in Metro projects. Added METRO codegen mode handling in CircuitSymbolProcessorProvider and updated tests for assisted injection scenarios. Changes consolidated in a targeted commit: 2b2a430cdc40396f985c60d06490e80e52d04a4c ("Update Metro @Assisted inject support (#2150)").
June 2025: Delivered Metro AssistedFactory support in Circuit codegen, enabling runtime injection of Navigator and Screen instances into presenters in Metro projects. Added METRO codegen mode handling in CircuitSymbolProcessorProvider and updated tests for assisted injection scenarios. Changes consolidated in a targeted commit: 2b2a430cdc40396f985c60d06490e80e52d04a4c ("Update Metro @Assisted inject support (#2150)").
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