r213152 - [ASTMatchers] Add a usingDirectiveDecl matcher.

[Benjamin Kramer]

Author: d0k
Date: Wed Jul 16 09:14:51 2014
New Revision: 213152

URL: http://llvm.org/viewvc/llvm-project?rev=213152&view=rev
Log:
[ASTMatchers] Add a usingDirectiveDecl matcher.

This matches 'using namespace' declarations.

Differential Revision: http://reviews.llvm.org/D4517

Modified:
    cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
    cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp

Modified: cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h?rev=213152&r1=213151&r2=213152&view=diff
==============================================================================
--- cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h (original)
+++ cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h Wed Jul 16 09:14:51 2014
@@ -714,6 +714,18 @@ substNonTypeTemplateParmExpr;
 ///   matches \code using X::x \endcode
 const internal::VariadicDynCastAllOfMatcher<Decl, UsingDecl> usingDecl;
 
+/// \brief Matches using namespace declarations.
+///
+/// Given
+/// \code
+///   namespace X { int x; }
+///   using namespace X;
+/// \endcode
+/// usingDirectiveDecl()
+///   matches \code using namespace X \endcode
+const internal::VariadicDynCastAllOfMatcher<Decl, UsingDirectiveDecl>
+    usingDirectiveDecl;
+
 /// \brief Matches unresolved using value declarations.
 ///
 /// Given

Modified: cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp?rev=213152&r1=213151&r2=213152&view=diff
==============================================================================
--- cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp (original)
+++ cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp Wed Jul 16 09:14:51 2014
@@ -3038,6 +3038,13 @@ TEST(UsingDeclaration, ThroughUsingDecla
       declRefExpr(throughUsingDecl(anything()))));
 }
 
+TEST(UsingDirectiveDeclaration, MatchesUsingNamespace) {
+  EXPECT_TRUE(matches("namespace X { int x; } using namespace X;",
+                      usingDirectiveDecl()));
+  EXPECT_FALSE(
+      matches("namespace X { int x; } using X::x;", usingDirectiveDecl()));
+}
+
 TEST(SingleDecl, IsSingleDecl) {
   StatementMatcher SingleDeclStmt =
       declStmt(hasSingleDecl(varDecl(hasInitializer(anything()))));