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Diffstat (limited to 'js/src/tests/test262/annexB/language/statements/class/subclass/superclass-prototype-emulates-undefined.js')
-rw-r--r-- | js/src/tests/test262/annexB/language/statements/class/subclass/superclass-prototype-emulates-undefined.js | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/statements/class/subclass/superclass-prototype-emulates-undefined.js b/js/src/tests/test262/annexB/language/statements/class/subclass/superclass-prototype-emulates-undefined.js new file mode 100644 index 0000000000..542dbb0756 --- /dev/null +++ b/js/src/tests/test262/annexB/language/statements/class/subclass/superclass-prototype-emulates-undefined.js @@ -0,0 +1,31 @@ +// 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); + +reportCompare(0, 0); |