r319360 - Add the hasDefinition() AST matcher to match class declarations that also have a definition.

[Aaron Ballman via cfe-commits]

Author: aaronballman
Date: Wed Nov 29 13:21:51 2017
New Revision: 319360

URL: http://llvm.org/viewvc/llvm-project?rev=319360&view=rev
Log:
Add the hasDefinition() AST matcher to match class declarations that also have a definition.

Patch by Julie Hockett.

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

Modified: cfe/trunk/docs/LibASTMatchersReference.html
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/LibASTMatchersReference.html?rev=319360&r1=319359&r2=319360&view=diff
==============================================================================
--- cfe/trunk/docs/LibASTMatchersReference.html (original)
+++ cfe/trunk/docs/LibASTMatchersReference.html Wed Nov 29 13:21:51 2017
@@ -2307,6 +2307,15 @@ Usable as: Matcher<<a href="http://cl
 </pre></td></tr>
 
 
+<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('hasDefinition0')"><a name="hasDefinition0Anchor">hasDefinition</a></td><td></td></tr>
+<tr><td colspan="4" class="doc" id="hasDefinition0"><pre>Matches a class declaration that is defined.
+
+Example matches x (matcher = cxxRecordDecl(hasDefinition()))
+class x {};
+class y;
+</pre></td></tr>
+
+
 <tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isDerivedFrom1')"><a name="isDerivedFrom1Anchor">isDerivedFrom</a></td><td>std::string BaseName</td></tr>
 <tr><td colspan="4" class="doc" id="isDerivedFrom1"><pre>Overloaded method as shortcut for isDerivedFrom(hasName(...)).
 </pre></td></tr>

Modified: cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h?rev=319360&r1=319359&r2=319360&view=diff
==============================================================================
--- cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h (original)
+++ cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h Wed Nov 29 13:21:51 2017
@@ -5853,6 +5853,17 @@ AST_MATCHER_P(CXXNewExpr, hasArraySize,
     InnerMatcher.matches(*Node.getArraySize(), Finder, Builder);
 }
 
+/// \brief Matches a class declaration that is defined.
+///
+/// Example matches x (matcher = cxxRecordDecl(hasDefinition()))
+/// \code
+/// class x {};
+/// class y;
+/// \endcode
+AST_MATCHER(CXXRecordDecl, hasDefinition) {
+  return Node.hasDefinition();
+}
+
 } // namespace ast_matchers
 } // namespace clang
 

Modified: cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp?rev=319360&r1=319359&r2=319360&view=diff
==============================================================================
--- cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp (original)
+++ cfe/trunk/lib/ASTMatchers/Dynamic/Registry.cpp Wed Nov 29 13:21:51 2017
@@ -250,6 +250,7 @@ RegistryMaps::RegistryMaps() {
   REGISTER_MATCHER(hasDeclContext);
   REGISTER_MATCHER(hasDeducedType);
   REGISTER_MATCHER(hasDefaultArgument);
+  REGISTER_MATCHER(hasDefinition);
   REGISTER_MATCHER(hasDescendant);
   REGISTER_MATCHER(hasDestinationType);
   REGISTER_MATCHER(hasDynamicExceptionSpec);

Modified: cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp?rev=319360&r1=319359&r2=319360&view=diff
==============================================================================
--- cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp (original)
+++ cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp Wed Nov 29 13:21:51 2017
@@ -2008,5 +2008,26 @@ TEST(HasArraySize, Basic) {
                       cxxNewExpr(hasArraySize(integerLiteral(equals(10))))));
 }
 
+TEST(HasDefinition, MatchesStructDefinition) {
+  EXPECT_TRUE(matches("struct x {};",
+                      cxxRecordDecl(hasDefinition())));
+  EXPECT_TRUE(notMatches("struct x;",
+                      cxxRecordDecl(hasDefinition())));
+}
+
+TEST(HasDefinition, MatchesClassDefinition) {
+  EXPECT_TRUE(matches("class x {};",
+                      cxxRecordDecl(hasDefinition())));
+  EXPECT_TRUE(notMatches("class x;",
+                      cxxRecordDecl(hasDefinition())));
+}
+
+TEST(HasDefinition, MatchesUnionDefinition) {
+  EXPECT_TRUE(matches("union x {};",
+                      cxxRecordDecl(hasDefinition())));
+  EXPECT_TRUE(notMatches("union x;",
+                      cxxRecordDecl(hasDefinition())));
+}
+
 } // namespace ast_matchers
 } // namespace clang