teemperor created this revision.
teemperor added reviewers: martong, a.sidorin.
teemperor added a project: LLDB.
Herald added subscribers: cfe-commits, rnkovacs.
`MustBuildLookupTable` must always be called on a primary context as we
otherwise
trigger an assert, but we don't ensure that this will always happen in our code
right now.
This patch explicitly requests the primary context when doing this call as this
shouldn't break
anything (as calling `getPrimaryContext` on a context which is its own primary
context is a no-op)
but will catch these rare cases where we somehow operate on a declaration
context that is
not its own primary context.
See also D54863 <https://reviews.llvm.org/D54863>.
Repository:
rC Clang
https://reviews.llvm.org/D54898
Files:
lib/AST/ExternalASTMerger.cpp
Index: lib/AST/ExternalASTMerger.cpp
===================================================================
--- lib/AST/ExternalASTMerger.cpp
+++ lib/AST/ExternalASTMerger.cpp
@@ -144,14 +144,14 @@
}
if (auto *ToTag = dyn_cast<TagDecl>(To)) {
ToTag->setHasExternalLexicalStorage();
- ToTag->setMustBuildLookupTable();
+ ToTag->getPrimaryContext()->setMustBuildLookupTable();
assert(Parent.CanComplete(ToTag));
} else if (auto *ToNamespace = dyn_cast<NamespaceDecl>(To)) {
ToNamespace->setHasExternalVisibleStorage();
assert(Parent.CanComplete(ToNamespace));
} else if (auto *ToContainer = dyn_cast<ObjCContainerDecl>(To)) {
ToContainer->setHasExternalLexicalStorage();
- ToContainer->setMustBuildLookupTable();
+ ToContainer->getPrimaryContext()->setMustBuildLookupTable();
assert(Parent.CanComplete(ToContainer));
}
return To;
Index: lib/AST/ExternalASTMerger.cpp
===================================================================
--- lib/AST/ExternalASTMerger.cpp
+++ lib/AST/ExternalASTMerger.cpp
@@ -144,14 +144,14 @@
}
if (auto *ToTag = dyn_cast<TagDecl>(To)) {
ToTag->setHasExternalLexicalStorage();
- ToTag->setMustBuildLookupTable();
+ ToTag->getPrimaryContext()->setMustBuildLookupTable();
assert(Parent.CanComplete(ToTag));
} else if (auto *ToNamespace = dyn_cast<NamespaceDecl>(To)) {
ToNamespace->setHasExternalVisibleStorage();
assert(Parent.CanComplete(ToNamespace));
} else if (auto *ToContainer = dyn_cast<ObjCContainerDecl>(To)) {
ToContainer->setHasExternalLexicalStorage();
- ToContainer->setMustBuildLookupTable();
+ ToContainer->getPrimaryContext()->setMustBuildLookupTable();
assert(Parent.CanComplete(ToContainer));
}
return To;
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