Add an AST matcher to match member intializers of a CXXCtorInitializer.

llvm-svn: 244662

clang/docs/LibASTMatchersReference.html

@@ -1512,6 +1512,23 @@ constructorDecl(hasAnyConstructorInitializer(isBaseInitializer()))
 </pre></td></tr>
 
 
+<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>&gt;</td><td class="name" onclick="toggle('isMemberInitializer0')"><a name="isMemberInitializer0Anchor">isMemberInitializer</a></td><td></td></tr>
+<tr><td colspan="4" class="doc" id="isMemberInitializer0"><pre>Matches a constructor initializer if it is initializing a direct member, as opposed to a base.
+
+Given
+  struct B {};
+  struct D : B {
+    int I;
+    D(int i) : I(i) {}
+  };
+  struct E : B {
+    E() : B() {}
+  };
+constructorDecl(hasAnyConstructorInitializer(isMemberInitializer()))
+  will match D(int), but not match E().
+</pre></td></tr>
+
+
 <tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>&gt;</td><td class="name" onclick="toggle('isWritten0')"><a name="isWritten0Anchor">isWritten</a></td><td></td></tr>
 <tr><td colspan="4" class="doc" id="isWritten0"><pre>Matches a constructor initializer if it is explicitly written in
 code (as opposed to implicitly added by the compiler).

clang/include/clang/ASTMatchers/ASTMatchers.h

@@ -2652,6 +2652,26 @@ AST_MATCHER(CXXCtorInitializer, isBaseInitializer) {
   return Node.isBaseInitializer();
 }
 
+/// \brief Matches a constructor initializer if it is initializing a member, as
+/// opposed to a base.
+///
+/// Given
+/// \code
+///   struct B {};
+///   struct D : B {
+///     int I;
+///     D(int i) : I(i) {}
+///   };
+///   struct E : B {
+///     E() : B() {}
+///   };
+/// \endcode
+/// constructorDecl(hasAnyConstructorInitializer(isMemberInitializer()))
+///   will match D(int), but not match E().
+AST_MATCHER(CXXCtorInitializer, isMemberInitializer) {
+  return Node.isMemberInitializer();
+}
+
 /// \brief Matches any argument of a call expression or a constructor call
 /// expression.
 ///

clang/lib/ASTMatchers/Dynamic/Registry.cpp

@@ -262,6 +262,7 @@ RegistryMaps::RegistryMaps() {
   REGISTER_MATCHER(isIntegral);
   REGISTER_MATCHER(isInTemplateInstantiation);
   REGISTER_MATCHER(isListInitialization);
+  REGISTER_MATCHER(isMemberInitializer);
   REGISTER_MATCHER(isMoveConstructor);
   REGISTER_MATCHER(isOverride);
   REGISTER_MATCHER(isPrivate);

clang/unittests/ASTMatchers/ASTMatchersTest.cpp

@@ -2097,6 +2097,12 @@ TEST(HasAnyConstructorInitializer, IsBaseInitializer) {
   EXPECT_TRUE(notMatches(Code, constructorDecl(allOf(
     hasAnyConstructorInitializer(allOf(isBaseInitializer(), isWritten())),
     hasName("D")))));
+  EXPECT_TRUE(matches(Code, constructorDecl(allOf(
+    hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())),
+    hasName("D")))));
+  EXPECT_TRUE(notMatches(Code, constructorDecl(allOf(
+    hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())),
+    hasName("E")))));
 }
 
 TEST(Matcher, NewExpression) {