source: imaps-frontend/node_modules/es-abstract/2016/Set.js@ d565449

'use strict';

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

var IsPropertyKey = require('./IsPropertyKey');
var SameValue = require('./SameValue');
var Type = require('./Type');

// IE 9 does not throw in strict mode when writability/configurability/extensibility is violated
var noThrowOnStrictViolation = (function () {
        try {
                delete [].length;
                return true;
        } catch (e) {
                return false;
        }
}());

// https://262.ecma-international.org/6.0/#sec-set-o-p-v-throw

module.exports = function Set(O, P, V, Throw) {
        if (Type(O) !== 'Object') {
                throw new $TypeError('Assertion failed: `O` must be an Object');
        }
        if (!IsPropertyKey(P)) {
                throw new $TypeError('Assertion failed: `P` must be a Property Key');
        }
        if (typeof Throw !== 'boolean') {
                throw new $TypeError('Assertion failed: `Throw` must be a Boolean');
        }
        if (Throw) {
                O[P] = V; // eslint-disable-line no-param-reassign
                if (noThrowOnStrictViolation && !SameValue(O[P], V)) {
                        throw new $TypeError('Attempted to assign to readonly property.');
                }
                return true;
        }
        try {
                O[P] = V; // eslint-disable-line no-param-reassign
                return noThrowOnStrictViolation ? SameValue(O[P], V) : true;
        } catch (e) {
                return false;
        }

};