// 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-defineownproperty-p-desc description: > Returns false if numericIndex is "-0" info: | 9.4.5.3 [[DefineOwnProperty]] ( P, Desc) ... 3. If Type(P) is String, then a. Let numericIndex be ! CanonicalNumericIndexString(P). b. If numericIndex is not undefined, then i. If IsInteger(numericIndex) is false, return false. ii. Let intIndex be numericIndex. iii. If intIndex = -0, return false. ... includes: [testBigIntTypedArray.js] features: [BigInt, Reflect, TypedArray] ---*/ testWithBigIntTypedArrayConstructors(function(TA) { var sample = new TA(2); assert.sameValue( Reflect.defineProperty(sample, "-0", { value: 42n, configurable: false, enumerable: true, writable: true }), false, "defineProperty returns false" ); assert.sameValue(sample[0], 0n, "does not change the value for [0]"); assert.sameValue(sample["-0"], undefined, "does define a value for ['-0']"); }); reportCompare(0, 0);