Added a lint for namespace

Reviewed By: dulmarod

Differential Revision: D5103566

fbshipit-source-id: 4092e73

infer/tests/codetoanalyze/objc/linters-for-test-only/Makefile

@@ -8,13 +8,14 @@
 TESTS_DIR = ../../..
 
 ANALYZER = linters
-CLANG_OPTIONS = -x objective-c -fobjc-arc -c
-INFER_OPTIONS = --linters-def-file linters_example.al --no-filtering --debug-exceptions --project-root $(TESTS_DIR) --no-failures-allowed
+CLANG_OPTIONS = -fobjc-arc -c
+INFER_OPTIONS = --cxx --linters-def-file linters_example.al --no-filtering --debug-exceptions --project-root $(TESTS_DIR) --no-failures-allowed
 INFERPRINT_OPTIONS = --issues-tests
 
 SOURCES = \
   $(wildcard *.m) \
   $(wildcard */*.m) \
+	$(wildcard *.mm) \
 	$(wildcard *.c) \
 
 include $(TESTS_DIR)/clang.make

infer/tests/codetoanalyze/objc/linters-for-test-only/issues.exp

@@ -1,6 +1,7 @@
 codetoanalyze/objc/linters-for-test-only/implicit_cast.c, main, 10, TEST_VAR_TYPE_CHECK, []
 codetoanalyze/objc/linters-for-test-only/implicit_cast.c, main, 11, TEST_IMPLICIT_CAST_CHECK, []
 codetoanalyze/objc/linters-for-test-only/implicit_cast.c, main, 11, TEST_VAR_TYPE_CHECK, []
+codetoanalyze/objc/linters-for-test-only/namespace.mm, Linters_dummy_method, 9, TEST_NAMESPACE_NAME, []
 codetoanalyze/objc/linters-for-test-only/subclassing.m, A_foo:, 13, TEST_BUILTIN_TYPE, []
 codetoanalyze/objc/linters-for-test-only/subclassing.m, A_foo:, 13, TEST_RETURN_METHOD, []
 codetoanalyze/objc/linters-for-test-only/subclassing.m, A_foo:, 19, TEST_BUILTIN_TYPE, []

infer/tests/codetoanalyze/objc/linters-for-test-only/linters_example.al

@@ -183,3 +183,14 @@ DEFINE-CHECKER TEST_NTH_PARAM_TYPE_CHECK = {
   SET message = "Found a method with nth parameter of type....";
 
 };
+
+DEFINE-CHECKER TEST_NAMESPACE_NAME = {
+
+  SET report_when =
+    WHEN
+      declaration_has_name(REGEXP("FirstNam*"))
+    HOLDS-IN-NODE NamespaceDecl;
+
+  SET message = "Found a namespace with name....";
+
+};

infer/tests/codetoanalyze/objc/linters-for-test-only/namespace.mm

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2017 - present Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+namespace FirstNameSpace {
+namespace SecodNameSpace {
+class C {
+  void m();
+};
+}
+void SecodNameSpace::C::m() {}
+}