llvm-project/clang/test/Rewriter/rewrite-block-pointer.mm

// RUN: %clang_cc1 -x objective-c++ -Wno-return-type -fblocks -fms-extensions -rewrite-objc %s -o %t-rw.cpp
// RUN: %clang_cc1 -fsyntax-only -Wno-address-of-temporary -D"SEL=void*" -D"__declspec(X)=" %t-rw.cpp
// radar 7638400

typedef void * id;

@interface X
@end

void foo(void (^block)(int));

@implementation X
static void enumerateIt(void (^block)(id, id, char *)) {
      foo(^(int idx) { });
}
@end

// radar 7651312
void apply(void (^block)(int));

static void x(int (^cmp)(int, int)) {
	x(cmp);
}

static void y(int (^cmp)(int, int)) {
	apply(^(int sect) {
		x(cmp);
    });
}