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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-integer-indexed-exotic-objects-hasproperty-p
description: Return abrupt from OrdinaryHasProperty parent's [[HasProperty]]
info: |
9.4.5.2 [[HasProperty]](P)
...
3. If Type(P) is String, then
a. Let numericIndex be ! CanonicalNumericIndexString(P).
b. If numericIndex is not undefined, then
i. Let buffer be the value of O's [[ViewedArrayBuffer]] internal slot.
ii. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
...
9.1.7.1 OrdinaryHasProperty (O, P)
...
2. Let hasOwn be ? O.[[GetOwnProperty]](P).
3. If hasOwn is not undefined, return true.
4. Let parent be ? O.[[GetPrototypeOf]]().
5. If parent is not null, then
a. Return ? parent.[[HasProperty]](P).
6. Return false.
includes: [testBigIntTypedArray.js, detachArrayBuffer.js]
features: [BigInt, Reflect, Proxy, TypedArray]
---*/
var handler = {
has: function() {
throw new Test262Error();
}
};
var proxy = new Proxy(TypedArray.prototype, handler);
testWithBigIntTypedArrayConstructors(function(TA) {
var sample = new TA(1);
Object.setPrototypeOf(sample, proxy);
assert.sameValue(
Reflect.has(sample, 0), true,
"OrdinaryHasProperty does not affect numericIndex properties [0]"
);
assert.sameValue(
Reflect.has(sample, 1), false,
"OrdinaryHasProperty does not affect numericIndex properties [1]"
);
assert.throws(Test262Error, function() {
Reflect.has(sample, "foo");
}, "Return abrupt from parent's [[HasProperty]] 'foo'");
Object.defineProperty(sample, "foo", { value: 42 });
assert.sameValue(
Reflect.has(sample, "foo"),
true,
"trap is not triggered if [[GetOwnProperty]] returns a defined value"
);
});
|
