[PATCH] D28671: [ASTMatchers] add typeAliasTemplateDecl matcher.
Eric Liu via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Fri Jan 13 04:33:46 PST 2017
ioeric created this revision.
ioeric added a reviewer: hokein.
ioeric added a subscriber: cfe-commits.
Herald added a subscriber: klimek.
https://reviews.llvm.org/D28671
Files:
include/clang/ASTMatchers/ASTMatchers.h
unittests/ASTMatchers/ASTMatchersNodeTest.cpp
Index: unittests/ASTMatchers/ASTMatchersNodeTest.cpp
===================================================================
--- unittests/ASTMatchers/ASTMatchersNodeTest.cpp
+++ unittests/ASTMatchers/ASTMatchersNodeTest.cpp
@@ -1494,6 +1494,22 @@
typedefNameDecl(hasName("typedefNameDeclTest2"))));
}
+TEST(TypeAliasTemplateDeclMatcher, Match) {
+ std::string Code = R"(
+ template <typename T>
+ class X { T t; };
+
+ template <typename T>
+ using typeAliasTemplateDecl = X<T>;
+
+ using typeAliasDecl = X<int>;
+ )";
+ EXPECT_TRUE(
+ matches(Code, typeAliasTemplateDecl(hasName("typeAliasTemplateDecl"))));
+ EXPECT_TRUE(
+ notMatches(Code, typeAliasTemplateDecl(hasName("typeAliasDecl"))));
+}
+
TEST(ObjCMessageExprMatcher, SimpleExprs) {
// don't find ObjCMessageExpr where none are present
EXPECT_TRUE(notMatchesObjC("", objcMessageExpr(anything())));
Index: include/clang/ASTMatchers/ASTMatchers.h
===================================================================
--- include/clang/ASTMatchers/ASTMatchers.h
+++ include/clang/ASTMatchers/ASTMatchers.h
@@ -180,6 +180,16 @@
/// matches "using Y = int", but not "typedef int X"
const internal::VariadicDynCastAllOfMatcher<Decl, TypeAliasDecl> typeAliasDecl;
+/// \brief Matches type alias template declarations.
+///
+/// typeAliasTemplateDecl() matches
+/// \code
+/// template <typename T>
+/// using Y = X<T>;
+/// \endcode
+const internal::VariadicDynCastAllOfMatcher<Decl, TypeAliasTemplateDecl>
+ typeAliasTemplateDecl;
+
/// \brief Matches AST nodes that were expanded within the main-file.
///
/// Example matches X but not Y
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