[6.2 🍒][Dependency Scanning] Miscellaneous fixes to import statement info serialization #81254
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…rialization - Deserialization of binary module dependencies was still relying on stale code (e.g. 'currentModuleImports', 'currentOptionalModuleImports') from serialized import strings, instead of the now in-use import infos. - Imports without a source location (e.g. implicit imports of stdlib) were not getting serialized at all - Optional import arrays were not being written out at all
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@swift-ci test |
nkcsgexi
approved these changes
May 2, 2025
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Cherry-pick of #80723
Explanation: This change is an overall code improvement to handling of
importstatement information as it gets serialized into the dependency scanner incremental build state.importstatement data technically isn't crucially important to get serialized, as up-to-date modules will have their imports already resolved, and non-up-to-date modules will have their imports re-scanned, but the code change still cleans up overall handling to ensure serialized state is consistent.currentModuleImports,currentOptionalModuleImports) from serialized import strings, instead of the now in-use import infos.Risk: Low, serialization of
importstatements is now more sound than it was before. Though they should not get used often much.Testing: Added tests to test suite
Original PRs: #80723
Reviewers: @cachemeifyoucan