Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103upstream/google/stable

git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 66 insertions, 0 deletions

diff --git a/docs/analyzer/checkers/callandmessage_example.c b/docs/analyzer/checkers/callandmessage_example.c
new file mode 100644
index 0000000000..7e14fbe464
--- /dev/null
+++ b/docs/analyzer/checkers/callandmessage_example.c
@@ -0,0 +1,66 @@
+//C
+void test() {
+   void (*foo)(void);
+   foo = 0;
+   foo(); // warn: function pointer is null
+ }
+
+ // C++
+ class C {
+ public:
+   void f();
+ };
+
+ void test() {
+   C *pc;
+   pc->f(); // warn: object pointer is uninitialized
+ }
+
+ // C++
+ class C {
+ public:
+   void f();
+ };
+
+ void test() {
+   C *pc = 0;
+   pc->f(); // warn: object pointer is null
+ }
+
+ // Objective-C
+ @interface MyClass : NSObject
+ @property (readwrite,assign) id x;
+ - (long double)longDoubleM;
+ @end
+
+ void test() {
+   MyClass *obj1;
+   long double ld1 = [obj1 longDoubleM];
+     // warn: receiver is uninitialized
+ }
+
+ // Objective-C
+ @interface MyClass : NSObject
+ @property (readwrite,assign) id x;
+ - (long double)longDoubleM;
+ @end
+
+ void test() {
+   MyClass *obj1;
+   id i = obj1.x; // warn: uninitialized object pointer
+ }
+
+ // Objective-C
+ @interface Subscriptable : NSObject
+ - (id)objectAtIndexedSubscript:(unsigned int)index;
+ @end
+
+ @interface MyClass : Subscriptable
+ @property (readwrite,assign) id x;
+ - (long double)longDoubleM;
+ @end
+
+ void test() {
+   MyClass *obj1;
+   id i = obj1[0]; // warn: uninitialized object pointer
+ }