test_legacy_accessors.js
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test_legacy_accessors.js
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	let pass = true;

	const target = {};
	let seen = 0;

	target.__defineSetter__('parseInt8', function (val) {
	seen = val ? 1 : -1;
	});

	target.parseInt8 = true;
	if (seen !== 1) {
	console.log('FAIL: __defineSetter__ should install a working setter');
	pass = false;
	}

	const setter = target.__lookupSetter__('parseInt8');
	if (typeof setter !== 'function') {
	console.log('FAIL: __lookupSetter__ should return the setter function');
	pass = false;
	}

	const proto = {};
	proto.__defineGetter__('value', function () {
	return 42;
	});

	const child = Object.create(proto);
	const getter = child.__lookupGetter__('value');
	if (typeof getter !== 'function') {
	console.log('FAIL: __lookupGetter__ should find getters on the prototype chain');
	pass = false;
	}

	if (child.value !== 42) {
	console.log('FAIL: getter installed with __defineGetter__ should be used');
	pass = false;
	}

	let boxedHits = 0;
	String.prototype.__defineGetter__('boxedLegacyAccessorProbe', function () {
	boxedHits++;
	return 'ok';
	});

	try {
	const boxedGetter = Object.prototype.__lookupGetter__.call('abc', 'boxedLegacyAccessorProbe');
	if (typeof boxedGetter !== 'function') {
	console.log('FAIL: primitive receivers should be boxed for __lookupGetter__');
	pass = false;
	}

	const defineResult = Object.prototype.__defineGetter__.call('abc', 'ephemeral', function () {
	return 1;
	});
	if (defineResult !== undefined) {
	console.log('FAIL: __defineGetter__ on boxed primitive should return undefined');
	pass = false;
	}

	if ('abc'.boxedLegacyAccessorProbe !== 'ok' \|\| boxedHits !== 1) {
	console.log('FAIL: boxed primitive getter should resolve through String.prototype');
	pass = false;
	}
	} finally {
	delete String.prototype.boxedLegacyAccessorProbe;
	}

	let proxyDefined = false;
	let proxyLookedUp = false;
	const proxyTarget = {};
	const proxy = new Proxy(proxyTarget, {
	defineProperty(target, key, desc) {
	proxyDefined = key === 'legacyProxy' && typeof desc.get === 'function';
	Object.defineProperty(target, key, desc);
	return true;
	},
	getOwnPropertyDescriptor(target, key) {
	if (key === 'legacyProxy') proxyLookedUp = true;
	return Object.getOwnPropertyDescriptor(target, key);
	}
	});

	proxy.__defineGetter__('legacyProxy', function () {
	return 7;
	});

	const proxyGetter = proxy.__lookupGetter__('legacyProxy');
	if (!proxyDefined) {
	console.log('FAIL: proxy __defineGetter__ should go through defineProperty semantics');
	pass = false;
	}

	if (!proxyLookedUp) {
	console.log('FAIL: proxy __lookupGetter__ should consult getOwnPropertyDescriptor');
	pass = false;
	}

	if (typeof proxyGetter !== 'function') {
	console.log('FAIL: proxy __lookupGetter__ should return the getter function');
	pass = false;
	}

	if (proxy.legacyProxy !== 7) {
	console.log('FAIL: proxy getter installed with __defineGetter__ should be used');
	pass = false;
	}

	if (pass) console.log('PASS');

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