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// Copyright 2022 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --experimental-wasm-gc --allow-natives-syntax
d8.file.execute('test/mjsunit/wasm/gc-js-interop-helpers.js');
let {struct, array} = CreateWasmObjects();
for (const wasm_obj of [struct, array]) {
// Test Object.
testThrowsRepeated(() => Object.freeze(wasm_obj), TypeError);
testThrowsRepeated(() => Object.seal(wasm_obj), TypeError);
repeated(() => assertSame(
undefined, Object.prototype.__lookupGetter__.call(wasm_obj, 'foo')));
repeated(() => assertSame(
undefined, Object.prototype.__lookupSetter__.call(wasm_obj, 'foo')));
testThrowsRepeated(
() => Object.prototype.__defineGetter__.call(wasm_obj, 'foo', () => 42),
TypeError);
testThrowsRepeated(
() => Object.prototype.__defineSetter__.call(wasm_obj, 'foo', () => {}),
TypeError);
testThrowsRepeated(
() => Object.defineProperty(wasm_obj, 'foo', {value: 42}), TypeError);
repeated(() => assertEquals([], Object.getOwnPropertyNames(wasm_obj)));
repeated(() => assertEquals([], Object.getOwnPropertySymbols(wasm_obj)));
repeated(() => assertEquals({}, Object.getOwnPropertyDescriptors(wasm_obj)));
repeated(() => assertEquals([], Object.keys(wasm_obj)));
repeated(() => assertEquals([], Object.entries(wasm_obj)));
repeated(
() => assertEquals(
undefined, Object.getOwnPropertyDescriptor(wasm_obj, 'foo')));
repeated(() => assertEquals(false, 'foo' in wasm_obj));
repeated(
() => assertEquals(
false, Object.prototype.hasOwnProperty.call(wasm_obj, 'foo')));
repeated(() => assertEquals(true, Object.isSealed(wasm_obj)));
repeated(() => assertEquals(true, Object.isFrozen(wasm_obj)));
repeated(() => assertEquals(false, Object.isExtensible(wasm_obj)));
repeated(() => assertEquals('object', typeof wasm_obj));
repeated(
() => assertEquals(
'[object Object]', Object.prototype.toString.call(wasm_obj)));
repeated(() => {
let tgt = {};
Object.assign(tgt, wasm_obj);
assertEquals({}, tgt);
});
repeated(() => Object.create(wasm_obj));
repeated(() => ({}).__proto__ = wasm_obj);
testThrowsRepeated(
() => Object.defineProperties(wasm_obj, {prop: {value: 1}}), TypeError);
testThrowsRepeated(
() => Object.defineProperty(wasm_obj, 'prop', {value: 1}), TypeError);
testThrowsRepeated(() => Object.fromEntries(wasm_obj), TypeError);
repeated(() => assertSame(null, Object.getPrototypeOf(wasm_obj)));
repeated(() => assertFalse(Object.hasOwn(wasm_obj, 'test')));
testThrowsRepeated(() => Object.preventExtensions(wasm_obj), TypeError);
testThrowsRepeated(() => Object.setPrototypeOf(wasm_obj, Object), TypeError);
repeated(() => assertEquals([], Object.values(wasm_obj)));
testThrowsRepeated(() => wasm_obj.toString(), TypeError);
// Test prototype chain containing a wasm object.
{
let obj = Object.create(wasm_obj);
repeated(() => assertSame(wasm_obj, Object.getPrototypeOf(obj)));
repeated(() => assertSame(wasm_obj, Reflect.getPrototypeOf(obj)));
repeated(() => assertSame(undefined, obj.__proto__));
testThrowsRepeated(() => obj.__proto__ = wasm_obj, TypeError);
// Property access fails.
repeated(() => assertSame(undefined, obj[0]));
repeated(() => assertSame(undefined, obj.prop));
testThrowsRepeated(() => obj.toString(), TypeError);
// Most conversions fail as it will use .toString(), .valueOf(), ...
testThrowsRepeated(() => `${obj}`, TypeError);
testThrowsRepeated(() => obj + 1, TypeError);
repeated(() => assertTrue(!!obj));
}
repeated(() => {
let obj = {};
Object.setPrototypeOf(obj, wasm_obj);
assertSame(wasm_obj, Object.getPrototypeOf(obj));
Object.setPrototypeOf(obj, null);
assertSame(null, Object.getPrototypeOf(obj));
Reflect.setPrototypeOf(obj, wasm_obj);
assertSame(wasm_obj, Reflect.getPrototypeOf(obj));
})
// Test Reflect.
{
let fct = function(x) {
return [this, x]
};
repeated(
() => assertEquals([wasm_obj, 1], Reflect.apply(fct, wasm_obj, [1])));
repeated(
() => assertEquals([{}, wasm_obj], Reflect.apply(fct, {}, [wasm_obj])));
repeated(() => assertEquals([new Number(1), undefined], Reflect.apply(fct, 1, wasm_obj)));
testThrowsRepeated(() => Reflect.apply(wasm_obj, null, []), TypeError);
}
testThrowsRepeated(() => Reflect.construct(wasm_obj, []), TypeError);
repeated(() => assertEquals({}, Reflect.construct(Object, wasm_obj)));
testThrowsRepeated(() => Reflect.construct(Object, [], wasm_obj), TypeError);
testThrowsRepeated(
() => Reflect.defineProperty(wasm_obj, 'prop', {value: 1}), TypeError);
testThrowsRepeated(
() => Reflect.defineProperty({}, wasm_obj, {value: 1}), TypeError);
// Reflect.defineProperty performs ToPropertyDescriptor on the third
// argument which checks whether {value} etc. exist before accessing them.
// Therefore it does not throw but add the property with value undefined.
repeated(() => {
let obj = {};
assertTrue(Reflect.defineProperty(obj, 'prop', wasm_obj));
assertTrue(obj.hasOwnProperty('prop'));
assertEquals(undefined, obj.prop);
});
repeated(() => {
let obj = {};
assertTrue(Reflect.defineProperty(obj, 'prop2', {value: wasm_obj}));
assertSame(wasm_obj, obj.prop2);
});
testThrowsRepeated(() => Reflect.deleteProperty(wasm_obj, 'prop'), TypeError);
testThrowsRepeated(() => Reflect.deleteProperty({}, wasm_obj), TypeError);
repeated(() => assertSame(undefined, Reflect.get(wasm_obj, 'prop')));
repeated(() => assertSame(null, Reflect.getPrototypeOf(wasm_obj)));
repeated(() => assertFalse(Reflect.has(wasm_obj, 'prop')));
repeated(() => assertTrue(Reflect.has({wasm_obj}, 'wasm_obj')));
repeated(() => assertFalse(Reflect.isExtensible(wasm_obj)));
repeated(() => assertEquals([], Reflect.ownKeys(wasm_obj)));
testThrowsRepeated(() => Reflect.preventExtensions(wasm_obj), TypeError);
testThrowsRepeated(() => Reflect.set(wasm_obj, 'prop', 123), TypeError);
testThrowsRepeated(
() => Reflect.setPrototypeOf(wasm_obj, Object.prototype), TypeError);
repeated(() => Reflect.setPrototypeOf({}, wasm_obj));
// Test Proxy.
{
const handler = {
get(target, prop, receiver) {
return 'proxied';
}
};
let proxy = new Proxy(wasm_obj, handler);
repeated(() => assertEquals('proxied', proxy.abc));
testThrowsRepeated(() => proxy.abc = 123, TypeError);
}
{
let underlyingObject = {};
let proxy = new Proxy(underlyingObject, wasm_obj);
repeated(() => assertSame(undefined, proxy.abc));
underlyingObject.abc = 123;
repeated(() => assertSame(123, proxy.abc));
}
{
const handler = {
get(target, prop, receiver) {
return 'proxied';
}
};
let {proxy, revoke} = Proxy.revocable(wasm_obj, handler);
repeated(() => assertEquals('proxied', proxy.abc));
testThrowsRepeated(() => proxy.abc = 123, TypeError);
revoke();
testThrowsRepeated(() => proxy.abc, TypeError);
}
{
let proxy = Proxy.revocable({}, wasm_obj).proxy;
repeated(() => assertSame(undefined, proxy.abc));
}
// Ensure no statement re-assigned wasm_obj by accident.
assertTrue(wasm_obj == struct || wasm_obj == array);
}
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