From: Aaron Ballman <aaron@aaronballman.com>
Date: Tue, 11 Aug 2015 20:42:00 +0000 (+0000)
Subject: Add an AST matcher to match member intializers of a CXXCtorInitializer.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2356ddbded6bd9d283362c73665f9d9bdec6d9e1;p=clang

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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@244662 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/docs/LibASTMatchersReference.html b/docs/LibASTMatchersReference.html
index 4d383817b3..799b47af6f 100644
--- a/docs/LibASTMatchersReference.html
+++ b/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).
diff --git a/include/clang/ASTMatchers/ASTMatchers.h b/include/clang/ASTMatchers/ASTMatchers.h
index 0e58683970..778e1f4dfe 100644
--- a/include/clang/ASTMatchers/ASTMatchers.h
+++ b/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.
 ///
diff --git a/lib/ASTMatchers/Dynamic/Registry.cpp b/lib/ASTMatchers/Dynamic/Registry.cpp
index a980110447..7e3df2dfd9 100644
--- a/lib/ASTMatchers/Dynamic/Registry.cpp
+++ b/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);
diff --git a/unittests/ASTMatchers/ASTMatchersTest.cpp b/unittests/ASTMatchers/ASTMatchersTest.cpp
index 3383259991..d51a5e28b5 100644
--- a/unittests/ASTMatchers/ASTMatchersTest.cpp
+++ b/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) {