| 1 | // RUN: %clang_cc1 %s -fsyntax-only -verify -fblocks |
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| 2 | |
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| 3 | void take(void*); |
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| 4 | |
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| 5 | void test() { |
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| 6 | take(^(int x){}); |
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| 7 | take(^(int x, int y){}); |
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| 8 | take(^(int x, int y){}); |
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| 9 | take(^(int x, // expected-note {{previous declaration is here}} |
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| 10 | int x){}); // expected-error {{redefinition of parameter 'x'}} |
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| 11 | |
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| 12 | |
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| 13 | take(^(int x) { return x+1; }); |
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| 14 | |
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| 15 | int (^CP)(int) = ^(int x) { return x*x; }; |
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| 16 | take(CP); |
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| 17 | |
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| 18 | int arg; |
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| 19 | ^{return 1;}(); |
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| 20 | ^{return 2;}(arg); // expected-error {{too many arguments to block call}} |
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| 21 | ^(void){return 3;}(1); // expected-error {{too many arguments to block call}} |
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| 22 | ^(){return 4;}(arg); // expected-error {{too many arguments to block call}} |
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| 23 | ^(int x, ...){return 5;}(arg, arg); // Explicit varargs, ok. |
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| 24 | } |
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| 25 | |
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| 26 | int main(int argc, char** argv) { |
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| 27 | ^(int argCount) { |
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| 28 | argCount = 3; |
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| 29 | }(argc); |
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| 30 | } |
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| 31 | |
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| 32 | // radar 7528255 |
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| 33 | void f0() { |
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| 34 | ^(int, double d, char) {}(1, 1.34, 'a'); // expected-error {{parameter name omitted}} \ |
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| 35 | // expected-error {{parameter name omitted}} |
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| 36 | } |
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| 37 | |
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| 38 | // rdar://problem/8962770 |
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| 39 | void test4() { |
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| 40 | int (^f)() = ^((x)) { }; // expected-warning {{type specifier missing}} expected-error {{type-id cannot have a name}} |
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| 41 | } |
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| 42 | |
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| 43 | // rdar://problem/9170609 |
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| 44 | void test5_helper(void (^)(int, int[*])); |
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| 45 | void test5(void) { |
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| 46 | test5_helper(^(int n, int array[n]) {}); |
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| 47 | } |
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| 48 | |
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| 49 | // Reduced from a problem on platforms where va_list is an array. |
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| 50 | struct tag { |
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| 51 | int x; |
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| 52 | }; |
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| 53 | typedef struct tag array_ty[1]; |
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| 54 | void test6(void) { |
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| 55 | void (^block)(array_ty) = ^(array_ty arr) { }; |
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| 56 | array_ty arr; |
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| 57 | block(arr); |
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| 58 | } |
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| 59 | |
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