1 // RUN: %clang_cc1 %s -fsyntax-only -verify -fblocks
2
3 void take(void*);
4
test()5 void test() {
6 take(^(int x){});
7 take(^(int x, int y){});
8 take(^(int x, int y){});
9 take(^(int x, // expected-note {{previous declaration is here}}
10 int x){}); // expected-error {{redefinition of parameter 'x'}}
11
12
13 take(^(int x) { return x+1; });
14
15 int (^CP)(int) = ^(int x) { return x*x; };
16 take(CP);
17
18 int arg;
19 ^{return 1;}();
20 ^{return 2;}(arg); // expected-error {{too many arguments to block call}}
21 ^(void){return 3;}(1); // expected-error {{too many arguments to block call}}
22 ^(){return 4;}(arg); // expected-error {{too many arguments to block call}}
23 ^(int x, ...){return 5;}(arg, arg); // Explicit varargs, ok.
24 }
25
main(int argc,char ** argv)26 int main(int argc, char** argv) {
27 ^(int argCount) {
28 argCount = 3;
29 }(argc);
30 }
31
32 // radar 7528255
f0()33 void f0() {
34 ^(int, double d, char) {}(1, 1.34, 'a'); // expected-error {{parameter name omitted}} \
35 // expected-error {{parameter name omitted}}
36 }
37
38 // rdar://problem/8962770
test4()39 void test4() {
40 int (^f)() = ^((x)) { }; // expected-error {{expected ')'}} expected-warning {{type specifier missing}} expected-note {{to match this}}
41 }
42
43 // rdar://problem/9170609
44 void test5_helper(void (^)(int, int[*]));
test5(void)45 void test5(void) {
46 test5_helper(^(int n, int array[n]) {});
47 }
48
49 // Reduced from a problem on platforms where va_list is an array.
50 struct tag {
51 int x;
52 };
53 typedef struct tag array_ty[1];
test6(void)54 void test6(void) {
55 void (^block)(array_ty) = ^(array_ty arr) { };
56 array_ty arr;
57 block(arr);
58 }
59