llvm-project/clang/test/SemaCXX/blocks.cpp

71 lines
1.2 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s -fblocks
void tovoid(void*);
void tovoid_test(int (^f)(int, int)) {
tovoid(f);
}
void reference_lvalue_test(int& (^f)()) {
f() = 10;
}
// PR 7165
namespace test1 {
void g(void (^)());
struct Foo {
void foo();
void test() {
(void) ^{ foo(); };
}
};
}
namespace test2 {
int repeat(int value, int (^block)(int), unsigned n) {
while (n--) value = block(value);
return value;
}
class Power {
int base;
public:
Power(int base) : base(base) {}
int calculate(unsigned n) {
return repeat(1, ^(int v) { return v * base; }, n);
}
};
int test() {
return Power(2).calculate(10);
}
}
// rdar: // 8382559
namespace radar8382559 {
void func(bool& outHasProperty);
int test3() {
__attribute__((__blocks__(byref))) bool hasProperty = false;
bool has = true;
bool (^b)() = ^ {
func(hasProperty);
if (hasProperty)
hasProperty = 0;
if (has)
hasProperty = 1;
return hasProperty;
};
func(hasProperty);
func(has);
b();
if (hasProperty)
hasProperty = 1;
if (has)
has = 2;
return hasProperty = 1;
}
}