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-rw-r--r--test/Analysis/retain-release-cpp-classes.cpp33
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 0000000000..9ed1c0b3b5
--- /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);
+}