r212001 - Add a matcher for SubstNonTypeTemplateParmExpr.

[Alexander Kornienko]

Author: alexfh
Date: Sun Jun 29 17:18:53 2014
New Revision: 212001

URL: http://llvm.org/viewvc/llvm-project?rev=212001&view=rev
Log:
Add a matcher for SubstNonTypeTemplateParmExpr.

Reviewers: klimek, djasper

Reviewed By: djasper

Subscribers: klimek, aemerson, cfe-commits

Differential Revision: http://reviews.llvm.org/D4327

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=212001&r1=212000&r2=212001&view=diff
==============================================================================
--- cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h (original)
+++ cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h Sun Jun 29 17:18:53 2014
@@ -686,10 +686,23 @@ exprWithCleanups;
 ///   struct B { int x, y; };
 ///   B b = { 5, 6 };
 /// \endcode
-/// initList()
+/// initListExpr()
 ///   matches "{ 1, 2 }" and "{ 5, 6 }"
 const internal::VariadicDynCastAllOfMatcher<Stmt, InitListExpr> initListExpr;
 
+/// \brief Matches substitutions of non-type template parameters.
+///
+/// Given
+/// \code
+///   template <int N>
+///   struct A { static const int n = N; };
+///   struct B : public A<42> {};
+/// \endcode
+/// substNonTypeTemplateParmExpr()
+///   matches "N" in the right-hand side of "static const int n = N;"
+const internal::VariadicDynCastAllOfMatcher<Stmt, SubstNonTypeTemplateParmExpr>
+substNonTypeTemplateParmExpr;
+
 /// \brief Matches using declarations.
 ///
 /// Given

Modified: cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp?rev=212001&r1=212000&r2=212001&view=diff
==============================================================================
--- cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp (original)
+++ cfe/trunk/unittests/ASTMatchers/ASTMatchersTest.cpp Sun Jun 29 17:18:53 2014
@@ -1017,6 +1017,17 @@ TEST(Matcher, ForRange) {
                          forRangeStmt()));
 }
 
+TEST(Matcher, SubstNonTypeTemplateParm) {
+  EXPECT_FALSE(matches("template<int N>\n"
+                       "struct A {  static const int n = 0; };\n"
+                       "struct B : public A<42> {};",
+                       substNonTypeTemplateParmExpr()));
+  EXPECT_TRUE(matches("template<int N>\n"
+                      "struct A {  static const int n = N; };\n"
+                      "struct B : public A<42> {};",
+                      substNonTypeTemplateParmExpr()));
+}
+
 TEST(Matcher, UserDefinedLiteral) {
   EXPECT_TRUE(matches("constexpr char operator \"\" _inc (const char i) {"
                       "  return i + 1;"