================
@@ -10181,6 +10184,151 @@ TEST_P(ImportTemplateParmDeclDefaultValue,
FromD, FromDInherited);
}
+TEST_P(ASTImporterOptionSpecificTestBase, ImportIntoReopenedNamespaceNoMatch1)
{
+ const char *ToCode =
+ R"(
+ namespace a {
+ }
+ namespace a {
+ struct X { int A; };
+ }
+ )";
+ Decl *ToTU = getToTuDecl(ToCode, Lang_CXX11);
+ const char *Code =
+ R"(
+ namespace a {
+ struct X { char A; };
+ }
+ )";
+ Decl *FromTU = getTuDecl(Code, Lang_CXX11);
+ auto *FromX = FirstDeclMatcher<CXXRecordDecl>().match(
+ FromTU, cxxRecordDecl(hasName("X")));
+ auto *ImportedX = Import(FromX, Lang_CXX11);
+ EXPECT_FALSE(ImportedX);
+}
+
+TEST_P(ASTImporterOptionSpecificTestBase, ImportIntoReopenedNamespaceNoMatch2)
{
+ const char *ToCode =
+ R"(
+ namespace a {
+ struct X { int A; };
+ }
+ namespace a {
+ }
+ )";
+ Decl *ToTU = getToTuDecl(ToCode, Lang_CXX11);
+ const char *Code =
+ R"(
+ namespace a {
+ struct X { char A; };
+ }
+ )";
+ Decl *FromTU = getTuDecl(Code, Lang_CXX11);
+ auto *FromX = FirstDeclMatcher<CXXRecordDecl>().match(
+ FromTU, cxxRecordDecl(hasName("X")));
+ auto *ImportedX = Import(FromX, Lang_CXX11);
+ EXPECT_FALSE(ImportedX);
+}
+
+TEST_P(ASTImporterOptionSpecificTestBase, ImportIntoReopenedNamespaceMatch1) {
+ const char *ToCode =
+ R"(
+ namespace a {
+ }
+ namespace a {
+ struct X { int A; };
+ }
+ )";
+ Decl *ToTU = getToTuDecl(ToCode, Lang_CXX11);
+ const char *Code =
+ R"(
+ namespace a {
+ struct X { int A; };
+ }
+ )";
+ Decl *FromTU = getTuDecl(Code, Lang_CXX11);
+ auto *FromX = FirstDeclMatcher<CXXRecordDecl>().match(
+ FromTU, cxxRecordDecl(hasName("X")));
+ auto *ToX = FirstDeclMatcher<CXXRecordDecl>().match(
+ ToTU, cxxRecordDecl(hasName("X")));
+ auto *ImportedX = Import(FromX, Lang_CXX11);
+ EXPECT_EQ(ImportedX, ToX);
----------------
Michael137 wrote:
Would this have failed in the past?
https://github.com/llvm/llvm-project/pull/118466
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