1 files changed, 29 insertions, 0 deletions
diff --git a/test/Sema/block-args.c b/test/Sema/block-args.c
new file mode 100644
index 0000000..a2d8e5a
--- /dev/null
+++ b/test/Sema/block-args.c
@@ -0,0 +1,29 @@
+// RUN: clang-cc %s -fsyntax-only -verify -fblocks
+
+void take(void*);
+
+void test() {
+  take(^(int x){});
+  take(^(int x, int y){});
+  take(^(int x, int y){});
+  take(^(int x, int x){});  // expected-error {{redefinition of parameter 'x'}}
+
+
+  take(^(int x) { return x+1; });
+
+  int (^CP)(int) = ^(int x) { return x*x; };
+  take(CP);
+
+  int arg;
+  ^{return 1;}();
+  ^{return 2;}(arg); // expected-error {{too many arguments to block call}}
+  ^(void){return 3;}(1); // expected-error {{too many arguments to block call}}
+  ^(){return 4;}(arg);   // C style (...), ok.
+  ^(int x, ...){return 5;}(arg, arg);   // Explicit varargs, ok.
+}
+
+int main(int argc) {
+  ^(int argCount) {
+    argCount = 3;
+  }(argc);
+}