perf: improve try_to_add of module concatenation#11279
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LingyuCoder merged 2 commits intomainfrom Aug 5, 2025
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Pull Request Overview
This PR improves the performance of the try_to_add function in the module concatenation plugin by implementing several caching optimizations. The changes reduce unnecessary module graph lookups, runtime calculations, and connection activity checks during module concatenation.
- Optimizes
getCachedReadableIdentifier()calls to avoid repeated module lookups - Caches module runtime information to prevent recalculation
- Caches connection active states to avoid repeated
is_activecalls
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| module_concatenation_plugin.rs | Refactors function signatures, adds caching mechanisms for runtime and connection states, implements new helper function for optimized connection activity checks |
| concatenated_module.rs | Updates all calls to get_cached_readable_identifier() to use new signature with module identifier instead of module instance |
crates/rspack_plugin_javascript/src/plugin/module_concatenation_plugin.rs
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crates/rspack_plugin_javascript/src/plugin/module_concatenation_plugin.rs
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crates/rspack_plugin_javascript/src/plugin/module_concatenation_plugin.rs
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JSerFeng
approved these changes
Aug 5, 2025
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Summary
getCachedReadableIdentifier()to prevent unnecessary getting module instance by identifier from module graphtry_to_addis_activeevery time of callingtry_to_addBefore:

After:

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