jyknight added a comment.
I suspect we also need to support saving/loading some of this information in
the serialized AST, e.g. clang/lib/Serialization/ASTWriter.cpp has code to save
the HeaderInfo data, around line 1650. And around line 2174, code to save the
macros per submodule. We'll also need to save the pragma-once-header-state
per-submodule too, I think.
================
Comment at: clang/lib/Lex/HeaderSearch.cpp:1264
+ if (FileInfo.isPragmaOnce || FileInfo.isImport){
+ if (FileInfo.isModuleHeader && M != nullptr){
+ if (PP.isIncludeVisibleInLocalModule(File, M)) return false;
----------------
I don't think whether the header you're trying to include is modular or not
(isModuleHeader) should matter here, just whether we have a current module M or
not.
================
Comment at: clang/lib/Lex/HeaderSearch.cpp:1266
+ if (PP.isIncludeVisibleInLocalModule(File, M)) return false;
+ else PP.setIncludeVisibleForHeader(File, M);
+ } else {
----------------
I wonder if this should be just using the CurSubmoduleState. Actually, is "M"
even needed in this function at all -- why isn't everything just using
CurSubmoduleState? (It's very likely I'm just confused about what the semantics
of this are...).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D75951/new/
https://reviews.llvm.org/D75951
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