toJSON

t {
	
	auto compound = new Compound();
	compound["a"] = 44;
	assert(toJSON(compound) == JSONValue(["a": 44]));
	
	assert(toJSON(new Int(12)) == JSONValue(12));
	assert(toJSON(new ListOf!Int(9, 10)) == JSONValue([9, 10]));
	assert(toJSON(null).type == JSON_TYPE.NULL);