function foo():i32{}
function bar = $generate_bar;

struct point{ field x, y:Foo; }

--------------

(c) {
	let foo = c->create_function("foo");
	let bar = c->create_function("bar");
	let point = c->create_struct("point");

	foo->set_declaration((c){
		c->set_return_type(c->get_i32());
	});
	foo->set_declaration((c){
	});

	bar->set_definition((c) => generate_bar(c));

	point->set_definition((c) {
		let x = c->create_field("x");
		let y = c->create_field("y");

		x->set_type((c) => c.resolve_type("Foo"));
		y->set_type((c) => c.resolve_type("Foo"));
	});
}