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Diffstat (limited to 'clang/test/Sema/block-sentinel-attribute.c')
-rw-r--r--clang/test/Sema/block-sentinel-attribute.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/clang/test/Sema/block-sentinel-attribute.c b/clang/test/Sema/block-sentinel-attribute.c
new file mode 100644
index 0000000..daf0a95
--- /dev/null
+++ b/clang/test/Sema/block-sentinel-attribute.c
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -fblocks -fsyntax-only -verify %s
+
+void (^e) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (1,1)));
+
+int main() {
+ void (^bbad) (int arg, const char * format) __attribute__ ((__sentinel__)) ; // expected-warning {{'sentinel' attribute only supported for variadic blocks}}
+ bbad = ^void (int arg, const char * format) __attribute__ ((__sentinel__)) {} ; // expected-warning {{'sentinel' attribute only supported for variadic blocks}}
+ void (^b) (int arg, const char * format, ...) __attribute__ ((__sentinel__)) = // expected-note {{block has been explicitly marked sentinel here}}
+ ^ __attribute__ ((__sentinel__)) (int arg, const char * format, ...) {};
+ void (^z) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (2))) = ^ __attribute__ ((__sentinel__ (2))) (int arg, const char * format, ...) {}; // expected-note {{block has been explicitly marked sentinel here}}
+
+
+ void (^y) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (5))) = ^ __attribute__ ((__sentinel__ (5))) (int arg, const char * format, ...) {}; // expected-note {{block has been explicitly marked sentinel here}}
+
+ b(1, "%s", (void*)0); // OK
+ b(1, "%s", 0); // expected-warning {{missing sentinel in block call}}
+ z(1, "%s",4 ,1,0); // expected-warning {{missing sentinel in block call}}
+ z(1, "%s", (void*)0, 1, 0); // OK
+
+ y(1, "%s", 1,2,3,4,5,6,7); // expected-warning {{missing sentinel in block call}}
+
+ y(1, "%s", (void*)0,3,4,5,6,7); // OK
+
+}
+