r202012 - ASTMatchers: added CXXMethodDecl matcher isPure()

[Dmitri Gribenko]

Author: gribozavr
Date: Mon Feb 24 03:27:46 2014
New Revision: 202012

URL: http://llvm.org/viewvc/llvm-project?rev=202012&view=rev
Log:
ASTMatchers: added CXXMethodDecl matcher isPure()

The isPure() CXXMethodDecl matcher matches pure method declaration like "A::x"
in this example:

class A {
  virtual void x() = 0;
}

Patch by Konrad Kleine.

Modified:
    cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
    cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp

Modified: cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h?rev=202012&r1=202011&r2=202012&view=diff
==============================================================================
--- cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h (original)
+++ cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h Mon Feb 24 03:27:46 2014
@@ -555,7 +555,7 @@ const internal::VariadicDynCastAllOfMatc
 ///
 /// Example matches y
 /// \code
-///   class X { void y() };
+///   class X { void y(); };
 /// \endcode
 const internal::VariadicDynCastAllOfMatcher<Decl, CXXMethodDecl> methodDecl;
 
@@ -2656,6 +2656,20 @@ AST_MATCHER(CXXMethodDecl, isVirtual) {
   return Node.isVirtual();
 }
 
+/// \brief Matches if the given method declaration is pure.
+///
+/// Given
+/// \code
+///   class A {
+///    public:
+///     virtual void x() = 0;
+///   };
+/// \endcode
+///   matches A::x
+AST_MATCHER(CXXMethodDecl, isPure) {
+  return Node.isPure();
+}
+
 /// \brief Matches if the given method declaration is const.
 ///
 /// Given

Modified: cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp?rev=202012&r1=202011&r2=202012&view=diff
==============================================================================
--- cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp (original)
+++ cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp Mon Feb 24 03:27:46 2014
@@ -1588,6 +1588,13 @@ TEST(Matcher, MatchesVirtualMethod) {
       methodDecl(isVirtual())));
 }
 
+TEST(Matcher, MatchesPureMethod) {
+  EXPECT_TRUE(matches("class X { virtual int f() = 0; };",
+      methodDecl(isPure(), hasName("::X::f"))));
+  EXPECT_TRUE(notMatches("class X { int f(); };",
+      methodDecl(isPure())));
+}
+
 TEST(Matcher, MatchesConstMethod) {
   EXPECT_TRUE(matches("struct A { void foo() const; };",
                       methodDecl(isConst())));