| // 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-%typedarray%.of |
| description: > |
| Return a new TypedArray |
| info: | |
| 9.4.5.5 [[Set]] ( P, V, Receiver) |
| |
| ... |
| 2. If Type(P) is String and if SameValue(O, Receiver) is true, then |
| a. Let numericIndex be ! CanonicalNumericIndexString(P). |
| b. If numericIndex is not undefined, then |
| i. Perform ? IntegerIndexedElementSet(O, numericIndex, V). |
| ii. Return true. |
| ... |
| |
| IntegerIndexedElementSet ( O, index, value ) |
| |
| Assert: O is an Integer-Indexed exotic object. |
| If O.[[ContentType]] is BigInt, let numValue be ? ToBigInt(value). |
| Otherwise, let numValue be ? ToNumber(value). |
| Let buffer be O.[[ViewedArrayBuffer]]. |
| If IsDetachedBuffer(buffer) is false and ! IsValidIntegerIndex(O, index) is true, then |
| Let offset be O.[[ByteOffset]]. |
| Let arrayTypeName be the String value of O.[[TypedArrayName]]. |
| Let elementSize be the Element Size value specified in Table 62 for arrayTypeName. |
| Let indexedPosition be (ℝ(index) × elementSize) + offset. |
| Let elementType be the Element Type value in Table 62 for arrayTypeName. |
| Perform SetValueInBuffer(buffer, indexedPosition, elementType, numValue, true, Unordered). |
| Return NormalCompletion(undefined). |
| |
| includes: [testBigIntTypedArray.js] |
| features: [BigInt, TypedArray] |
| ---*/ |
| |
| testWithBigIntTypedArrayConstructors(function(TA) { |
| var result = TA.of(42n, 43n, 0n); |
| assert.sameValue(result.length, 3); |
| assert.sameValue(result[0], 42n); |
| assert.sameValue(result[1], 43n); |
| assert.sameValue(result[2], 0n); |
| assert.sameValue(result.constructor, TA); |
| assert.sameValue(Object.getPrototypeOf(result), TA.prototype); |
| }); |