// Copyright 2017 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --allow-natives-syntax var log = []; function check(predicate, item) { if (!predicate) log.push(item); } var global = this; Object.getOwnPropertyNames(global).forEach(function(name) { // Only check for global properties with uppercase names. if (name[0] != name[0].toUpperCase()) return; var obj = global[name]; // Skip non-receivers. if (!%IsJSReceiver(obj)) return; // Skip non-natives. if (!obj.toString().includes('native')) return; // Construct an instance. try { new obj(); } catch (e) { } // Check the object. check(%HasFastProperties(obj), `${name}`); // Check the constructor. var constructor = obj.constructor; if (!%IsJSReceiver(constructor)) return; check(%HasFastProperties(constructor), `${name}.constructor`); // Check the prototype. var prototype = obj.prototype; if (!%IsJSReceiver(prototype)) return; check(%HasFastProperties(prototype), `${name}.prototype`); // Check the prototype.constructor. var prototype_constructor = prototype.constructor; if (!%IsJSReceiver(prototype_constructor)) return; check( %HasFastProperties(prototype_constructor), `${name}.prototype.constructor`); }); // This is the current set of dictionary mode objects. // Remove items as we fix them. See issue 5902. assertEquals( [ 'Error.prototype', 'EvalError.prototype', 'RangeError.prototype', 'ReferenceError.prototype', 'SyntaxError.prototype', 'TypeError.prototype', 'URIError.prototype' ], log);