From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001
From: "Zancanaro; Carlo" <czan8762@plang3.cs.usyd.edu.au>
Date: Mon, 24 Sep 2012 09:58:17 +1000
Subject: Add the clang library to the repo (with some of my changes, too).

---
 clang/test/SemaObjC/nonnull.m | 96 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 clang/test/SemaObjC/nonnull.m

(limited to 'clang/test/SemaObjC/nonnull.m')

diff --git a/clang/test/SemaObjC/nonnull.m b/clang/test/SemaObjC/nonnull.m
new file mode 100644
index 0000000..a38c0ac
--- /dev/null
+++ b/clang/test/SemaObjC/nonnull.m
@@ -0,0 +1,96 @@
+#include "nonnull.h"
+
+// RUN: %clang_cc1 -fblocks -fsyntax-only -verify -Wno-objc-root-class %s
+
+@class NSObject;
+
+NONNULL_ATTR
+int f1(int x); //  no warning
+int f2(int *x) __attribute__ ((nonnull (1)));
+int f3(int *x) __attribute__ ((nonnull (0))); // expected-error {{'nonnull' attribute parameter 1 is out of bounds}}
+int f4(int *x, int *y) __attribute__ ((nonnull (1,2)));
+int f5(int *x, int *y) __attribute__ ((nonnull (2,1)));
+int f6(NSObject *x) __attribute__ ((nonnull (1))); // no-warning
+int f7(NSObject *x) __attribute__ ((nonnull)); // no-warning
+
+
+extern void func1 (void (^block1)(), void (^block2)(), int) __attribute__((nonnull));
+
+extern void func3 (void (^block1)(), int, void (^block2)(), int)
+__attribute__((nonnull(1,3)));
+
+extern void func4 (void (^block1)(), void (^block2)()) __attribute__((nonnull(1)))
+__attribute__((nonnull(2)));
+
+void func6();
+void func7();
+
+void
+foo (int i1, int i2, int i3, void (^cp1)(), void (^cp2)(), void (^cp3)())
+{
+  func1(cp1, cp2, i1);
+  
+  func1(0, cp2, i1);  // expected-warning {{null passed to a callee which requires a non-null argument}}
+  func1(cp1, 0, i1);  // expected-warning {{null passed to a callee which requires a non-null argument}}
+  func1(cp1, cp2, 0);
+  
+  
+  func3(0, i2, cp3, i3); // expected-warning {{null passed to a callee which requires a non-null argument}}
+  func3(cp3, i2, 0, i3);  // expected-warning {{null passed to a callee which requires a non-null argument}}
+  
+  func4(0, cp1); // expected-warning {{null passed to a callee which requires a non-null argument}}
+  func4(cp1, 0); // expected-warning {{null passed to a callee which requires a non-null argument}}
+  
+  // Shouldn't these emit warnings?  Clang doesn't, and neither does GCC.  It
+  // seems that the checking should handle Objective-C pointers.
+  func6((NSObject*) 0); // no-warning
+  func7((NSObject*) 0); // no-warning
+}
+
+void func5(int) NONNULL_ATTR; //  no warning
+
+// rdar://6857843
+struct dispatch_object_s {
+    int x;
+};
+
+typedef union {
+    long first;
+    struct dispatch_object_s *_do;
+} dispatch_object_t __attribute__((transparent_union));
+
+__attribute__((nonnull))
+void _dispatch_queue_push_list(dispatch_object_t _head); // no warning
+
+void func6(dispatch_object_t _head) {
+  _dispatch_queue_push_list(0); // expected-warning {{null passed to a callee which requires a non-null argument}}
+  _dispatch_queue_push_list(_head._do);  // no warning
+}
+
+// rdar://9287695
+#define NULL (void*)0
+
+@interface NSObject 
+- (void)doSomethingWithNonNullPointer:(void *)ptr :(int)iarg : (void*)ptr1 __attribute__((nonnull(1, 3)));
++ (void)doSomethingClassyWithNonNullPointer:(void *)ptr __attribute__((nonnull(1)));
+@end
+
+extern void DoSomethingNotNull(void *db) __attribute__((nonnull(1)));
+
+@interface IMP 
+{
+  void * vp;
+}
+@end
+
+@implementation IMP
+- (void) Meth {
+  NSObject *object;
+  [object doSomethingWithNonNullPointer:NULL:1:NULL]; // expected-warning 2 {{null passed to a callee which requires a non-null argument}}
+  [object doSomethingWithNonNullPointer:vp:1:NULL]; // expected-warning {{null passed to a callee which requires a non-null argument}}
+  [NSObject doSomethingClassyWithNonNullPointer:NULL]; // expected-warning {{null passed to a callee which requires a non-null argument}}
+  DoSomethingNotNull(NULL); // expected-warning {{null passed to a callee which requires a non-null argument}}
+  [object doSomethingWithNonNullPointer:vp:1:vp];
+}
+@end
+
-- 
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