Add isDeleted() matcher for FunctionDecl nodes.

Reviewers: klimek

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D4911

llvm-svn: 215714

clang/docs/LibASTMatchersReference.html

@@ -368,7 +368,7 @@ nestedNameSpecifier()
 <tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>&gt;</td><td class="name" onclick="toggle('CUDAKernelCallExpr0')"><a name="CUDAKernelCallExpr0Anchor">CUDAKernelCallExpr</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1CUDAKernelCallExpr.html">CUDAKernelCallExpr</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="CUDAKernelCallExpr0"><pre>Matches CUDA kernel call expression.
 
-Example matches kernel&lt;&lt;&lt;i,j&gt;&gt;&gt;()
+Example matches,
   kernel&lt;&lt;&lt;i,j&gt;&gt;&gt;();
 </pre></td></tr>
 
@@ -1733,6 +1733,17 @@ Usable as: Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1TagDec
 </pre></td></tr>
 
 
+<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>&gt;</td><td class="name" onclick="toggle('isDeleted0')"><a name="isDeleted0Anchor">isDeleted</a></td><td></td></tr>
+<tr><td colspan="4" class="doc" id="isDeleted0"><pre>Matches deleted function declarations.
+
+Given:
+  void Func();
+  void DeletedFunc() = delete;
+functionDecl(isDeleted())
+  matches the declaration of DeletedFunc, but not Func.
+</pre></td></tr>
+
+
 <tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>&gt;</td><td class="name" onclick="toggle('isExplicitTemplateSpecialization0')"><a name="isExplicitTemplateSpecialization0Anchor">isExplicitTemplateSpecialization</a></td><td></td></tr>
 <tr><td colspan="4" class="doc" id="isExplicitTemplateSpecialization0"><pre>Matches explicit template specializations of function, class, or
 static member variable template instantiations.

clang/include/clang/ASTMatchers/ASTMatchers.h

@@ -2373,6 +2373,19 @@ AST_MATCHER(FunctionDecl, isExternC) {
   return Node.isExternC();
 }
 
+/// \brief Matches deleted function declarations.
+///
+/// Given:
+/// \code
+///   void Func();
+///   void DeletedFunc() = delete;
+/// \endcode
+/// functionDecl(isDeleted())
+///   matches the declaration of DeletedFunc, but not Func.
+AST_MATCHER(FunctionDecl, isDeleted) {
+  return Node.isDeleted();
+}
+
 /// \brief Matches the condition expression of an if statement, for loop,
 /// or conditional operator.
 ///

clang/lib/ASTMatchers/Dynamic/Registry.cpp

@@ -230,6 +230,7 @@ RegistryMaps::RegistryMaps() {
   REGISTER_MATCHER(isConst);
   REGISTER_MATCHER(isConstQualified);
   REGISTER_MATCHER(isDefinition);
+  REGISTER_MATCHER(isDeleted);
   REGISTER_MATCHER(isExplicitTemplateSpecialization);
   REGISTER_MATCHER(isExpr);
   REGISTER_MATCHER(isExternC);

clang/unittests/ASTMatchers/ASTMatchersTest.cpp

@@ -1528,6 +1528,13 @@ TEST(IsExternC, MatchesExternCFunctionDeclarations) {
   EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC())));
 }
 
+TEST(IsDeleted, MatchesDeletedFunctionDeclarations) {
+  EXPECT_TRUE(
+      notMatches("void Func();", functionDecl(hasName("Func"), isDeleted())));
+  EXPECT_TRUE(matches("void Func() = delete;",
+                      functionDecl(hasName("Func"), isDeleted())));
+}
+
 TEST(HasAnyParameter, DoesntMatchIfInnerMatcherDoesntMatch) {
   EXPECT_TRUE(notMatches("class Y {}; class X { void x(int) {} };",
       methodDecl(hasAnyParameter(hasType(recordDecl(hasName("X")))))));