41 lines
945 B
Plaintext
41 lines
945 B
Plaintext
'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var $SyntaxError = GetIntrinsic('%SyntaxError%');
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var $TypeError = GetIntrinsic('%TypeError%');
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var IsIntegralNumber = require('./IsIntegralNumber');
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var whichTypedArray = require('which-typed-array');
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// https://262.ecma-international.org/13.0/#sec-typedarrayelementsize
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var table71 = {
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__proto__: null,
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$Int8Array: 1,
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$Uint8Array: 1,
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$Uint8ClampedArray: 1,
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$Int16Array: 2,
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$Uint16Array: 2,
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$Int32Array: 4,
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$Uint32Array: 4,
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$BigInt64Array: 8,
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$BigUint64Array: 8,
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$Float32Array: 4,
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$Float64Array: 8
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};
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module.exports = function TypedArrayElementSize(O) {
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var type = whichTypedArray(O);
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if (type === false) {
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throw new $TypeError('Assertion failed: `O` must be a TypedArray');
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}
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var size = table71['$' + type];
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if (!IsIntegralNumber(size) || size < 0) {
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throw new $SyntaxError('Assertion failed: Unknown TypedArray type `' + type + '`');
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}
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return size;
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};
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