private-static-getter-multiple-evaluations-of-class-realm.js (1809B)
1 // Copyright (C) 2019 Caio Lima (Igalia SL). All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 description: Every new evaluation of a class creates a different Private Name (private static getter) 6 esid: sec-runtime-semantics-evaluate-name 7 info: | 8 ClassTail : ClassHeritage { ClassBody } 9 ... 10 19. Let F be constructorInfo.[[Closure]]. 11 20. If ClassHeritage_opt is present and protoParent is not null, then set F.[[ConstructorKind]] to "derived". 12 21. Perform MakeConstructor(F, false, proto). 13 22. Perform MakeClassConstructor(F). 14 ... 15 33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F, 16 a. PrivateBrandAdd(F, F). 17 ... 18 19 PrivateBrandCheck(O, P) 20 1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true, 21 a. Throw a TypeError exception. 22 features: [class, class-static-methods-private, cross-realm] 23 flags: [noStrict] 24 ---*/ 25 26 let global1 = $262.createRealm().global; 27 let global2 = $262.createRealm().global; 28 let eval1 = global1.eval; 29 let eval2 = global2.eval; 30 31 let classStringExpression = `( 32 class { 33 static get #m() { 34 return 'test262'; 35 }; 36 37 static access() { 38 return this.#m; 39 } 40 } 41 )`; 42 43 let evalClass = function (_eval) { 44 return _eval(classStringExpression); 45 }; 46 47 let C1 = evalClass(eval1); 48 let C2 = evalClass(eval2); 49 50 assert.sameValue(C1.access(), 'test262'); 51 assert.sameValue(C2.access(), 'test262'); 52 53 assert.throws(global1.TypeError, function() { 54 C1.access.call(C2); 55 }, 'invalid access of C1 private static getter'); 56 57 assert.throws(global2.TypeError, function() { 58 C2.access.call(C1); 59 }, 'invalid access of C2 private static getter'); 60 61 reportCompare(0, 0);