core-js/modules/es.uint8-array.set-from-hex.js

Standard library

'use strict';
var $ = require('../internals/export');
var globalThis = require('../internals/global-this');
var aString = require('../internals/a-string');
var anUint8Array = require('../internals/an-uint8-array');
var notDetached = require('../internals/array-buffer-not-detached');
var $fromHex = require('../internals/uint8-from-hex');

// Should not throw an error on length-tracking views over ResizableArrayBuffer
// https://issues.chromium.org/issues/454630441
function throwsOnLengthTrackingView() {
  try {
    // eslint-disable-next-line es/no-resizable-and-growable-arraybuffers -- required for testing
    var rab = new ArrayBuffer(16, { maxByteLength: 1024 });
    // eslint-disable-next-line es/no-uint8array-prototype-setfromhex, es/no-typed-arrays -- required for testing
    new Uint8Array(rab).setFromHex('cafed00d');
  } catch (error) {
    return true;
  }
}

// `Uint8Array.prototype.setFromHex` method
// https://github.com/tc39/proposal-arraybuffer-base64
if (globalThis.Uint8Array) $({ target: 'Uint8Array', proto: true, forced: throwsOnLengthTrackingView() }, {
  setFromHex: function setFromHex(string) {
    anUint8Array(this);
    aString(string);
    notDetached(this.buffer);
    var read = $fromHex(string, this).read;
    return { read: read, written: read / 2 };
  }
});