| // 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%.prototype.fill |
| description: > |
| Fills all the elements with `value` from a default start and index. |
| info: | |
| 22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] ) |
| |
| %TypedArray%.prototype.fill is a distinct function that implements the same |
| algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this |
| object's [[ArrayLength]] internal slot is accessed in place of performing a |
| [[Get]] of "length". The implementation of the algorithm may be optimized with |
| the knowledge that the this value is an object that has a fixed length and |
| whose integer indexed properties are not sparse. However, such optimization |
| must not introduce any observable changes in the specified behaviour of the |
| algorithm. |
| |
| ... |
| |
| 22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] ) |
| |
| ... |
| 7. Repeat, while k < final |
| a. Let Pk be ! ToString(k). |
| b. Perform ? Set(O, Pk, value, true). |
| includes: [compareArray.js, testBigIntTypedArray.js] |
| features: [BigInt, TypedArray] |
| ---*/ |
| |
| testWithBigIntTypedArrayConstructors(function(TA) { |
| assert( |
| compareArray( |
| new TA().fill(8n), |
| [] |
| ), |
| "does not fill an empty instance" |
| ); |
| |
| assert( |
| compareArray(new TA([0n, 0n, 0n]).fill(8n), [8n, 8n, 8n]), |
| "Default start and end indexes are 0 and this.length" |
| ); |
| }); |