TanTan
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29 lines
794 B
Plaintext
29 lines
794 B
Plaintext
'use strict';
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var $TypeError = require('es-errors/type');
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var isObject = require('es-object-atoms/isObject');
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var IsDetachedBuffer = require('./IsDetachedBuffer');
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var isTypedArray = require('is-typed-array');
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var typedArrayBuffer = require('typed-array-buffer');
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// https://262.ecma-international.org/6.0/#sec-validatetypedarray
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module.exports = function ValidateTypedArray(O) {
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if (!isObject(O)) {
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throw new $TypeError('Assertion failed: `O` must be an Object'); // step 1
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}
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if (!isTypedArray(O)) {
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throw new $TypeError('Assertion failed: `O` must be a Typed Array'); // steps 2 - 3
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}
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var buffer = typedArrayBuffer(O); // step 4
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if (IsDetachedBuffer(buffer)) {
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throw new $TypeError('`O` must be backed by a non-detached buffer'); // step 5
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}
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return buffer; // step 6
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};
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