import { assert } from "./test.mjs";



function shallow_mutable_copy (source, target) {
	for (const [key, value] of Object.entries(source)) {
		target[key] = value;
	}
}

export function underride (object, template) {
	const result = {};
	shallow_mutable_copy(template, result);
	shallow_mutable_copy(object, result);
	return result;
}



assert("underriding works.", _ => {
	const object = underride({
		gay: true,
		trans: true,
	}, {
		trans: false,
		invisible: false,
	});

	return object.gay && object.trans && (object.invisible === false);
});