Sha256: e2b94bb09f6b8037b6c3986cefc629df357ac7e58fffbebc4010a6e9fedd0706
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Size: 1.72 KB
Versions: 216
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Stored size: 1.72 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $SyntaxError = GetIntrinsic('%SyntaxError%');
var $TypeError = GetIntrinsic('%TypeError%');
var IsArray = require('./IsArray');
var IsConstructor = require('./IsConstructor');
var Type = require('./Type');
var ValidateTypedArray = require('./ValidateTypedArray');
var availableTypedArrays = require('available-typed-arrays')();
var typedArrayLength = require('typed-array-length');
// https://262.ecma-international.org/7.0/#typedarray-create
module.exports = function TypedArrayCreate(constructor, argumentList) {
if (!IsConstructor(constructor)) {
throw new $TypeError('Assertion failed: `constructor` must be a constructor');
}
if (!IsArray(argumentList)) {
throw new $TypeError('Assertion failed: `argumentList` must be a List');
}
if (availableTypedArrays.length === 0) {
throw new $SyntaxError('Assertion failed: Typed Arrays are not supported in this environment');
}
// var newTypedArray = Construct(constructor, argumentList); // step 1
var newTypedArray;
if (argumentList.length === 0) {
newTypedArray = new constructor();
} else if (argumentList.length === 1) {
newTypedArray = new constructor(argumentList[0]);
} else if (argumentList.length === 2) {
newTypedArray = new constructor(argumentList[0], argumentList[1]);
} else {
newTypedArray = new constructor(argumentList[0], argumentList[1], argumentList[2]);
}
ValidateTypedArray(newTypedArray); // step 2
if (argumentList.length === 1 && Type(argumentList[0]) === 'Number') { // step 3
if (typedArrayLength(newTypedArray) < argumentList[0]) {
throw new $TypeError('Assertion failed: `argumentList[0]` must be <= `newTypedArray.length`'); // step 3.a
}
}
return newTypedArray; // step 4
};
Version data entries
216 entries across 27 versions & 2 rubygems