aboutsummaryrefslogtreecommitdiff
path: root/clang/lib/AST/ASTStructuralEquivalence.cpp
AgeCommit message (Collapse)AuthorFilesLines
2017-07-01[Modules] Implement ODR-like semantics for tag types in C/ObjCBruno Cardoso Lopes1-10/+48
Allow ODR for ObjC/C in the sense that we won't keep more that one definition around (merge them). However, ensure the decl pass the structural compatibility check in C11 6.2.7/1, for that, reuse the structural equivalence checks used by the ASTImporter. Few other considerations: - Create error diagnostics for tag types mismatches and thread them into the structural equivalence checks. - Note that by doing this we only support redefinition between types that are considered "compatible types" by C. This is mixed approach of the suggestions discussed in http://lists.llvm.org/pipermail/cfe-dev/2017-March/053257.html Differential Revision: https://reviews.llvm.org/D31778 rdar://problem/31909368 llvm-svn: 306918
2017-06-03Added LLVM_FALLTHROUGH to address warning: this statement may fall through. NFC.Galina Kistanova1-0/+1
llvm-svn: 304650
2017-05-13[ASTImporter] Improve handling of incomplete typesSean Callanan1-0/+5
ASTImporter has some bugs when it's importing types that themselves come from an ExternalASTSource. This is exposed particularly in the behavior when comparing complete TagDecls with forward declarations. This patch does several things: - Adds a test case making sure that conflicting forward-declarations are resolved correctly; - Extends the clang-import-test harness to test two-level importing, so that we make sure we complete types when necessary; and - Fixes a few bugs I found this way. Failure to complete types was one; however, I also discovered that complete RecordDecls aren't properly added to the redecls chain for existing forward declarations. llvm-svn: 302975
2017-04-28[ASTImporter] Move structural equivalence context to its own file. NFCIBruno Cardoso Lopes1-0/+1318
Create a header and impl file for the structural equivalence context. This is to allow other users outside clang importer. NFCI Differential Revision: https://reviews.llvm.org/D31777 rdar://problem/30167717 llvm-svn: 301604