From b8e22b2e84edccdea13f4736e69f92e814dd93fd Mon Sep 17 00:00:00 2001
From: Szabolcs Sipos <szabolcs.sipos@ericsson.com>
Date: Thu, 7 May 2015 14:24:22 +0000
Subject: [PATCH] Adding new AST matcher: gnuNullExpr

It matches GNU __null expression.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@236731 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/clang/ASTMatchers/ASTMatchers.h   | 5 +++++
 unittests/ASTMatchers/ASTMatchersTest.cpp | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/include/clang/ASTMatchers/ASTMatchers.h b/include/clang/ASTMatchers/ASTMatchers.h
index 3280083b2b..94906d190b 100644
--- a/include/clang/ASTMatchers/ASTMatchers.h
+++ b/include/clang/ASTMatchers/ASTMatchers.h
@@ -1441,6 +1441,11 @@ const internal::VariadicDynCastAllOfMatcher<
   Stmt,
   CXXNullPtrLiteralExpr> nullPtrLiteralExpr;
 
+/// \brief Matches GNU __null expression.
+const internal::VariadicDynCastAllOfMatcher<
+  Stmt,
+  GNUNullExpr> gnuNullExpr;
+
 /// \brief Matches binary operator expressions.
 ///
 /// Example matches a || b
diff --git a/unittests/ASTMatchers/ASTMatchersTest.cpp b/unittests/ASTMatchers/ASTMatchersTest.cpp
index 46ddb8d0fb..6f1cf3fe2c 100644
--- a/unittests/ASTMatchers/ASTMatchersTest.cpp
+++ b/unittests/ASTMatchers/ASTMatchersTest.cpp
@@ -2144,6 +2144,10 @@ TEST(Matcher, NullPtrLiteral) {
   EXPECT_TRUE(matches("int* i = nullptr;", nullPtrLiteralExpr()));
 }
 
+TEST(Matcher, GNUNullExpr) {
+  EXPECT_TRUE(matches("int* i = __null;", gnuNullExpr()));
+}
+
 TEST(Matcher, AsmStatement) {
   EXPECT_TRUE(matches("void foo() { __asm(\"mov al, 2\"); }", asmStmt()));
 }
-- 
2.40.0