vendor/clang/clang-trunk-r351319

1 files changed, 33 insertions, 0 deletions

diff --git a/test/Analysis/retain-release-cpp-classes.cpp b/test/Analysis/retain-release-cpp-classes.cpp
new file mode 100644
index 0000000000000..9ed1c0b3b5672
--- /dev/null
+++ b/test/Analysis/retain-release-cpp-classes.cpp
@@ -0,0 +1,33 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=text -verify %s
+
+// expected-no-diagnostics
+
+typedef void *CFTypeRef;
+typedef struct _CFURLCacheRef *CFURLCacheRef;
+
+CFTypeRef CustomCFRetain(CFTypeRef);
+void invalidate(void *);
+struct S1 {
+  CFTypeRef s;
+  CFTypeRef returnFieldAtPlus0() {
+    return s;
+  }
+};
+struct S2 {
+  S1 *s1;
+};
+void foo(S1 *s1) {
+  invalidate(s1);
+  S2 s2;
+  s2.s1 = s1;
+  CustomCFRetain(s1->returnFieldAtPlus0());
+
+  // Definitely no leak end-of-path note here. The retained pointer
+  // is still accessible through s1 and s2.
+  ((void) 0); // no-warning
+
+  // FIXME: Ideally we need to warn after this invalidate(). The per-function
+  // retain-release contract is violated: the programmer should release
+  // the symbol after it was retained, within the same function.
+  invalidate(&s2);
+}