TanTan
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39 lines
1.4 KiB
Plaintext
39 lines
1.4 KiB
Plaintext
'use strict';
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var $TypeError = require('es-errors/type');
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var IsBigIntElementType = require('./IsBigIntElementType');
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var IsUnclampedIntegerElementType = require('./IsUnclampedIntegerElementType');
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var TypedArrayElementType = require('./TypedArrayElementType');
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var ValidateTypedArray = require('./ValidateTypedArray');
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var whichTypedArray = require('which-typed-array');
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var typedArrayBuffer = require('typed-array-buffer');
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// https://262.ecma-international.org/13.0/#sec-validateintegertypedarray
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module.exports = function ValidateIntegerTypedArray(typedArray) {
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var waitable = arguments.length > 1 ? arguments[1] : false; // step 1
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if (typeof waitable !== 'boolean') {
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throw new $TypeError('Assertion failed: `waitable` must be a Boolean');
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}
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ValidateTypedArray(typedArray); // step 2
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var buffer = typedArrayBuffer(typedArray); // step 3
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if (waitable) { // step 5
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var typeName = whichTypedArray(typedArray);
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if (typeName !== 'Int32Array' && typeName !== 'BigInt64Array') {
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throw new $TypeError('Assertion failed: `typedArray` must be an Int32Array or BigInt64Array when `waitable` is true'); // step 5.a
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}
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} else {
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var type = TypedArrayElementType(typedArray); // step 5.a
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if (!IsUnclampedIntegerElementType(type) && !IsBigIntElementType(type)) {
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throw new $TypeError('Assertion failed: `typedArray` must be an integer TypedArray'); // step 5.b
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}
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}
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return buffer; // step 6
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};
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