[PATCH] D133945: [clang][ASTImporter] DeclContext::localUncachedLookup: Continue lookup into decl chain when regular lookup fails

[Michael Buch via Phabricator via cfe-commits]

Michael137 updated this revision to Diff 460718.
Michael137 added a comment.

- Rebase


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133945/new/

https://reviews.llvm.org/D133945

Files:
  clang/lib/AST/DeclBase.cpp
  clang/unittests/AST/ASTImporterTest.cpp
  lldb/test/API/lang/cpp/gmodules/template-with-same-arg/TestTemplateWithSameArg.py


Index: lldb/test/API/lang/cpp/gmodules/template-with-same-arg/TestTemplateWithSameArg.py
===================================================================
--- lldb/test/API/lang/cpp/gmodules/template-with-same-arg/TestTemplateWithSameArg.py
+++ lldb/test/API/lang/cpp/gmodules/template-with-same-arg/TestTemplateWithSameArg.py
@@ -34,7 +34,6 @@
         self.main_source_file = lldb.SBFileSpec("main.cpp")
 
     @add_test_categories(["gmodules"])
-    @skipIf(bugnumber='rdar://96581048')
     def test_same_template_arg(self):
         lldbutil.run_to_source_breakpoint(self, "Break here", self.main_source_file)
 
@@ -51,7 +50,6 @@
             ])
 
     @add_test_categories(["gmodules"])
-    @skipIf(bugnumber='rdar://96581048')
     def test_duplicate_decls(self):
         lldbutil.run_to_source_breakpoint(self, "Break here", self.main_source_file)
 
Index: clang/unittests/AST/ASTImporterTest.cpp
===================================================================
--- clang/unittests/AST/ASTImporterTest.cpp
+++ clang/unittests/AST/ASTImporterTest.cpp
@@ -4924,9 +4924,9 @@
   FooDC->getRedeclContext()->localUncachedLookup(FooName, FoundDecls);
   EXPECT_EQ(FoundDecls.size(), 0u);
 
-  // Cannot find in the LookupTable of its LexicalDC (A).
+  // Finds via linear search of its LexicalDC (A).
   FooLexicalDC->getRedeclContext()->localUncachedLookup(FooName, FoundDecls);
-  EXPECT_EQ(FoundDecls.size(), 0u);
+  EXPECT_EQ(FoundDecls.size(), 1u);
 
   // Can't find in the list of Decls of the DC.
   EXPECT_EQ(findInDeclListOfDC(FooDC, FooName), nullptr);
Index: clang/lib/AST/DeclBase.cpp
===================================================================
--- clang/lib/AST/DeclBase.cpp
+++ clang/lib/AST/DeclBase.cpp
@@ -1771,7 +1771,8 @@
   if (!hasExternalVisibleStorage() && !hasExternalLexicalStorage() && Name) {
     lookup_result LookupResults = lookup(Name);
     Results.insert(Results.end(), LookupResults.begin(), LookupResults.end());
-    return;
+    if (!Results.empty())
+      return;
   }
 
   // If we have a lookup table, check there first. Maybe we'll get lucky.


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