source: imaps-frontend/node_modules/es-abstract/2024/IsFixedLengthArrayBuffer.js@ d565449

'use strict';

var $TypeError = require('es-errors/type');

var callBound = require('call-bind/callBound');

var $arrayBufferResizable = callBound('%ArrayBuffer.prototype.resizable%', true);
var $sharedArrayGrowable = callBound('%SharedArrayBuffer.prototype.growable%', true);

var isArrayBuffer = require('is-array-buffer');
var isSharedArrayBuffer = require('is-shared-array-buffer');

// https://262.ecma-international.org/15.0/#sec-isfixedlengtharraybuffer

module.exports = function IsFixedLengthArrayBuffer(arrayBuffer) {
        var isAB = isArrayBuffer(arrayBuffer);
        var isSAB = isSharedArrayBuffer(arrayBuffer);
        if (!isAB && !isSAB) {
                throw new $TypeError('Assertion failed: `arrayBuffer` must be an ArrayBuffer or SharedArrayBuffer');
        }

        if (isAB && $arrayBufferResizable) {
                return !$arrayBufferResizable(arrayBuffer); // step 1
        }
        if (isSAB && $sharedArrayGrowable) {
                return !$sharedArrayGrowable(arrayBuffer); // step 1
        }
        return true; // step 2
};