[IDE][DocSupport] Fix DocInfo missing decls when generated for clang submodules #31589
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…submodules. Out handling of clang submodules was handled differently between DocInfo and InterfaceGen. For InterfaceGen submodules were mapped back to their top-level clang modules (or their Swift overlay if it had one) before being passed into printSubmoduleInterface, along with the dot separated name of the submodule. For DocInfo, they were not, and only the rightmost component of their name was passed. The call to retrieve the decls from a ModuleDecl doesn't work if the ModuleDecl wraps a clang submodule, so we were missing these decls. InterfaceGen for submodules also shouldn't have been mapping the module back to the overlay of top-level clang module, as that meant we ended up printing import decls from the Swift overlay in the submodule's interface. Resolves rdar://problem/57338105
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@swift-ci please test |
akyrtzi
approved these changes
May 6, 2020
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Our handling of clang submodules was different between DocInfo and InterfaceGen. For InterfaceGen submodules were mapped back to their top-level clang modules (or their Swift overlay if it had one) before being passed into printSubmoduleInterface, along with the dot separated name of the submodule.
For DocInfo, they were not, and only the rightmost component of their name was passed. The call to retrieve the decls from a ModuleDecl doesn't work if the ModuleDecl wraps a clang submodule, so we were missing these decls.
InterfaceGen for submodules also shouldn't have been mapping it back to the Swift overlay of its top-level clang module, as that meant we ended up printing import decls from the Swift overlay in the submodule's interface. It should have stopped at the top-level clang module.
This change makes them both (and swift-ide-test) just pass in the submodule ModuleDecl directly without mapping it, and maps it within printSubmoduleInterface (now unified with printModuleInterface since it handles both) where appropriate.
Resolves rdar://problem/57338105