Strict mode Failing
Expected no error, got SyntaxError: invalid statement encountered.
non-Strict mode Failing
Expected no error, got SyntaxError: invalid statement encountered.
Features:
- class
- IsHTMLDDA
Expected no error, got SyntaxError: invalid statement encountered.
Expected no error, got SyntaxError: invalid statement encountered.
// Copyright (C) 2020 Alexey Shvayka. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-runtime-semantics-classdefinitionevaluation description: > [[IsHTMLDDA]] object as "prototype" of superclass: `null` check uses strict equality. info: | ClassDefinitionEvaluation [...] 5. Else, [...] g. Else, i. Let protoParent be ? Get(superclass, "prototype"). ii. If Type(protoParent) is neither Object nor Null, throw a TypeError exception. iii. Let constructorParent be superclass. 6. Let proto be OrdinaryObjectCreate(protoParent). [...] features: [class, IsHTMLDDA] ---*/ function Superclass() {} Superclass.prototype = $262.IsHTMLDDA; class C extends Superclass {} var c = new C(); assert(c instanceof C); assert(c instanceof Superclass);