r258072 - Add an AST matcher for checking whether a function is defaulted.

[Aaron Ballman via cfe-commits]

Author: aaronballman
Date: Mon Jan 18 14:37:44 2016
New Revision: 258072

URL: http://llvm.org/viewvc/llvm-project?rev=258072&view=rev
Log:
Add an AST matcher for checking whether a function is defaulted.

Patch by Jonathan Coe.

Modified:
    cfe/trunk/docs/LibASTMatchersReference.html
    cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
    cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp
    cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp

Modified: cfe/trunk/docs/LibASTMatchersReference.html
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/LibASTMatchersReference.html?rev=258072&r1=258071&r2=258072&view=diff
==============================================================================
--- cfe/trunk/docs/LibASTMatchersReference.html (original)
+++ cfe/trunk/docs/LibASTMatchersReference.html Mon Jan 18 14:37:44 2016
@@ -2184,6 +2184,17 @@ Usable as: Matcher&lt<a href="http://cla
 </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('isDefaulted0')"><a 
name="isDefaulted0Anchor">isDefaulted</a></td><td></td></tr>
+<tr><td colspan="4" class="doc" id="isDefaulted0"><pre>Matches defaulted 
function declarations.
+
+Given:
+  class A { ~A(); };
+  class B { ~B() = default; };
+functionDecl(isDefaulted())
+  matches the declaration of ~B, but not ~A.
+</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.
 

Modified: cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h?rev=258072&r1=258071&r2=258072&view=diff
==============================================================================
--- cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h (original)
+++ cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h Mon Jan 18 14:37:44 2016
@@ -2993,6 +2993,19 @@ AST_MATCHER(FunctionDecl, isDeleted) {
   return Node.isDeleted();
 }
 
+/// \brief Matches defaulted function declarations.
+///
+/// Given:
+/// \code
+///   class A { ~A(); };
+///   class B { ~B() = default; };
+/// \endcode
+/// functionDecl(isDefaulted())
+///   matches the declaration of ~B, but not ~A.
+AST_MATCHER(FunctionDecl, isDefaulted) {
+  return Node.isDefaulted();
+}
+
 /// \brief Matches functions that have a non-throwing exception specification.
 ///
 /// Given:

Modified: cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp?rev=258072&r1=258071&r2=258072&view=diff
==============================================================================
--- cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp (original)
+++ cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp Mon Jan 18 14:37:44 2016
@@ -270,6 +270,7 @@ RegistryMaps::RegistryMaps() {
   REGISTER_MATCHER(isConstQualified);
   REGISTER_MATCHER(isCopyConstructor);
   REGISTER_MATCHER(isDefaultConstructor);
+  REGISTER_MATCHER(isDefaulted);
   REGISTER_MATCHER(isDefinition);
   REGISTER_MATCHER(isDeleted);
   REGISTER_MATCHER(isExceptionVariable);

Modified: cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp?rev=258072&r1=258071&r2=258072&view=diff
==============================================================================
--- cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp (original)
+++ cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp Mon Jan 18 14:37:44 2016
@@ -1814,6 +1814,13 @@ TEST(IsExternC, MatchesExternCFunctionDe
   EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC())));
 }
 
+TEST(IsDefaulted, MatchesDefaultedFunctionDeclarations) {
+  EXPECT_TRUE(
+      notMatches("class A { ~A(); };", functionDecl(hasName("A"), 
isDefaulted())));
+  EXPECT_TRUE(matches("class B { ~B() = default; };",
+                      functionDecl(hasName("B"), isDefaulted())));
+}
+
 TEST(IsDeleted, MatchesDeletedFunctionDeclarations) {
   EXPECT_TRUE(
       notMatches("void Func();", functionDecl(hasName("Func"), isDeleted())));


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