diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/class/subclass/builtin-objects/String/super-must-be-called.js')
-rw-r--r-- | js/src/tests/test262/language/statements/class/subclass/builtin-objects/String/super-must-be-called.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/subclass/builtin-objects/String/super-must-be-called.js b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/String/super-must-be-called.js new file mode 100644 index 0000000000..0c247e62db --- /dev/null +++ b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/String/super-must-be-called.js @@ -0,0 +1,33 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 21.1.1 +description: Super need to be called to initialize internals +info: | + 21.1.1 The String Constructor + + ... + The String constructor is designed to be subclassable. It may be used as the + value of an extends clause of a class definition. Subclass constructors that + intend to inherit the specified String behaviour must include a super call to + the String constructor to create and initialize the subclass instance with a + [[StringData]] internal slot. +---*/ + +class S1 extends String { + constructor() {} +} + +assert.throws(ReferenceError, function() { + new S1(); +}); + +class S2 extends String { + constructor() { + super(); + } +} + +new S2(); + +reportCompare(0, 0); |