test/Sema/block-args.c

   1 // RUN: %clang_cc1 %s -fsyntax-only -verify -fblocks
   2
   3 void take(void*);
   4
   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
  26 int main(int argc, char** argv) {
  27   ^(int argCount) {
  28     argCount = 3;
  29   }(argc);
  30 }
  31
  32 // radar 7528255
  33 void f0() {
  34   ^(int, double d, char) {}(1, 1.34, 'a'); // expected-error {{parameter name omitted}} \
  35                                            // expected-error {{parameter name omitted}}
  36 }