[PATCH] D142384: [C++20] Fix a crash with modules.
Utkarsh Saxena via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Feb 2 08:05:35 PST 2023
usaxena95 updated this revision to Diff 494314.
usaxena95 marked an inline comment as done.
usaxena95 added a comment.
Addressed comments.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D142384/new/
https://reviews.llvm.org/D142384
Files:
clang/lib/AST/Decl.cpp
Index: clang/lib/AST/Decl.cpp
===================================================================
--- clang/lib/AST/Decl.cpp
+++ clang/lib/AST/Decl.cpp
@@ -4769,7 +4769,10 @@
RecordDecl::field_iterator RecordDecl::field_begin() const {
if (hasExternalLexicalStorage() && !hasLoadedFieldsFromExternalStorage())
LoadFieldsFromExternalStorage();
-
+ // This is necessary for correctness for C++ with modules.
+ // FIXME: Come up with a test case that breaks without definition.
+ if (RecordDecl *D = getDefinition(); D && D != this)
+ return D->field_begin();
return field_iterator(decl_iterator(FirstDecl));
}
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