================
@@ -182,6 +183,30 @@ void IncrementalParser::CleanUpPTU(TranslationUnitDecl
*MostRecentTU) {
}
}
+ auto *ECCD = S.getASTContext().getExternCContextDecl();
+ if (auto *Map = ECCD->getPrimaryContext()->getLookupPtr()) {
+ for (auto &&[Key, List] : *Map) {
+ DeclContextLookupResult R = List.getLookupResult();
+ std::vector<NamedDecl *> NamedDeclsToRemove;
+ for (NamedDecl *D : R) {
+ // Implicitly generated C decl is not attached to the current TU but
+ // lexically attached to the recent TU, so we need to check the lexical
+ // context.
----------------
vgvassilev wrote:
That part makes me uncomfortable. We try to iterate over the lookup candidates
in this case. However, is there a route from the `MostRecentTU` to the
declaration that was created. Isn't it part from the DeclContext part of the
object? If there is no way to get it, then there is some logical flow in either
clang, where the implicit declaration creation does not respect the active TU
or something else.
https://github.com/llvm/llvm-project/pull/178648
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