[ASTMatchers] Matchers for new[] operators

Two new matchers for `CXXNewExpr` are added which may be useful e.g. in
`clang-tidy` checkers. One of them is `isArray` which matches `new[]` but not
plain `new`. The other one, `hasArraySize` matches `new[]` for a given size.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318909 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp b/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
index 9c9304a6f8..f6b217c0cb 100644
--- a/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
+++ b/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
@@ -1998,5 +1998,15 @@ TEST(HasDefaultArgument, Basic) {
                       parmVarDecl(hasDefaultArgument())));
 }
 
+TEST(IsArray, Basic) {
+  EXPECT_TRUE(matches("struct MyClass {}; MyClass *p1 = new MyClass[10];",
+                      cxxNewExpr(isArray())));
+}
+
+TEST(HasArraySize, Basic) {
+  EXPECT_TRUE(matches("struct MyClass {}; MyClass *p1 = new MyClass[10];",
+                      cxxNewExpr(hasArraySize(integerLiteral(equals(10))))));
+}
+
 } // namespace ast_matchers
 } // namespace clang