hatch-surf/node_modules/es-abstract/2022/RawBytesToNumeric.js
Riley Zhang df378d33ef
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Merge GitHub main into Gitea repo (allow unrelated histories)
Resolved conflicts by taking GitHub versions for:
- .dockerignore, .gitignore, Dockerfile, README.md, docker-compose.yml

Kept deploy.sh updated to:
- Pull from GitHub (primary source)
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Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-06-25 05:20:46 +02:00

68 lines
2.3 KiB
JavaScript

'use strict';
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bound');
var $RangeError = require('es-errors/range');
var $SyntaxError = require('es-errors/syntax');
var $TypeError = require('es-errors/type');
var $BigInt = GetIntrinsic('%BigInt%', true);
var hasOwnProperty = require('./HasOwnProperty');
var IsArray = require('./IsArray');
var IsBigIntElementType = require('./IsBigIntElementType');
var IsUnsignedElementType = require('./IsUnsignedElementType');
var bytesAsFloat32 = require('../helpers/bytesAsFloat32');
var bytesAsFloat64 = require('../helpers/bytesAsFloat64');
var bytesAsInteger = require('../helpers/bytesAsInteger');
var every = require('../helpers/every');
var isByteValue = require('../helpers/isByteValue');
var $reverse = callBound('Array.prototype.reverse');
var $slice = callBound('Array.prototype.slice');
var tableTAO = require('./tables/typed-array-objects');
// https://262.ecma-international.org/11.0/#sec-rawbytestonumeric
module.exports = function RawBytesToNumeric(type, rawBytes, isLittleEndian) {
if (typeof type !== 'string' || !hasOwnProperty(tableTAO.size, '$' + type)) {
throw new $TypeError('Assertion failed: `type` must be a TypedArray element type');
}
if (!IsArray(rawBytes) || !every(rawBytes, isByteValue)) {
throw new $TypeError('Assertion failed: `rawBytes` must be an Array of bytes');
}
if (typeof isLittleEndian !== 'boolean') {
throw new $TypeError('Assertion failed: `isLittleEndian` must be a Boolean');
}
var elementSize = tableTAO.size['$' + type]; // step 1
if (rawBytes.length !== elementSize) {
// this assertion is not in the spec, but it'd be an editorial error if it were ever violated
throw new $RangeError('Assertion failed: `rawBytes` must have a length of ' + elementSize + ' for type ' + type);
}
var isBigInt = IsBigIntElementType(type);
if (isBigInt && !$BigInt) {
throw new $SyntaxError('this environment does not support BigInts');
}
// eslint-disable-next-line no-param-reassign
rawBytes = $slice(rawBytes, 0, elementSize);
if (!isLittleEndian) {
$reverse(rawBytes); // step 2
}
if (type === 'Float32') { // step 3
return bytesAsFloat32(rawBytes);
}
if (type === 'Float64') { // step 4
return bytesAsFloat64(rawBytes);
}
return bytesAsInteger(rawBytes, elementSize, IsUnsignedElementType(type), isBigInt);
};