[ASTImporter] Import TemplateParameterLists in function templates.
Summary: Correct missing import of TemplateParameterList in function decl.
Reviewers: martong, a.sidorin, shafik
Reviewed By: martong
Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60461
llvm-svn: 360132
diff --git a/clang/unittests/AST/ASTImporterTest.cpp b/clang/unittests/AST/ASTImporterTest.cpp
index 7cac2b5..952e6f9 100644
--- a/clang/unittests/AST/ASTImporterTest.cpp
+++ b/clang/unittests/AST/ASTImporterTest.cpp
@@ -5083,6 +5083,24 @@
EXPECT_FALSE(ImportedD->getUnderlyingType()->isIncompleteType());
}
+TEST_P(ASTImporterOptionSpecificTestBase, ImportTemplateParameterLists) {
+ auto Code =
+ R"(
+ template<class T>
+ int f() { return 0; }
+ template <> int f<int>() { return 4; }
+ )";
+
+ Decl *FromTU = getTuDecl(Code, Lang_CXX);
+ auto *FromD = FirstDeclMatcher<FunctionDecl>().match(FromTU,
+ functionDecl(hasName("f"), isExplicitTemplateSpecialization()));
+ ASSERT_EQ(FromD->getNumTemplateParameterLists(), 1);
+
+ auto *ToD = Import(FromD, Lang_CXX);
+ // The template parameter list should exist.
+ EXPECT_EQ(ToD->getNumTemplateParameterLists(), 1);
+}
+
struct ASTImporterLookupTableTest : ASTImporterOptionSpecificTestBase {};
TEST_P(ASTImporterLookupTableTest, OneDecl) {