54 lines
1.6 KiB
Plaintext
54 lines
1.6 KiB
Plaintext
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'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var $TypeError = GetIntrinsic('%TypeError%');
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var IsBigIntElementType = require('./IsBigIntElementType');
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var IsUnclampedIntegerElementType = require('./IsUnclampedIntegerElementType');
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var Type = require('./Type');
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var ValidateTypedArray = require('./ValidateTypedArray');
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var whichTypedArray = require('which-typed-array');
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// https://262.ecma-international.org/12.0/#sec-validateintegertypedarray
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var table60 = {
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__proto__: null,
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$Int8Array: 'Int8',
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$Uint8Array: 'Uint8',
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$Uint8ClampedArray: 'Uint8C',
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$Int16Array: 'Int16',
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$Uint16Array: 'Uint16',
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$Int32Array: 'Int32',
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$Uint32Array: 'Uint32',
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$BigInt64Array: 'BigInt64',
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$BigUint64Array: 'BigUint64',
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$Float32Array: 'Float32',
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$Float64Array: 'Float64'
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};
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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 (Type(waitable) !== 'Boolean') {
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throw new $TypeError('Assertion failed: `waitable` must be a Boolean');
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}
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var buffer = ValidateTypedArray(typedArray); // step 2
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var typeName = whichTypedArray(typedArray); // step 3
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var type = table60['$' + typeName]; // step 4
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if (waitable) { // step 5
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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 if (!IsUnclampedIntegerElementType(type) && !IsBigIntElementType(type)) {
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throw new $TypeError('Assertion failed: `typedArray` must be an integer TypedArray'); // step 6.a
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}
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return buffer; // step 7
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};
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