diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/class/scope-name-lex-open-no-heritage.js')
-rw-r--r-- | js/src/tests/test262/language/statements/class/scope-name-lex-open-no-heritage.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/scope-name-lex-open-no-heritage.js b/js/src/tests/test262/language/statements/class/scope-name-lex-open-no-heritage.js new file mode 100644 index 0000000000..6755b167c2 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/scope-name-lex-open-no-heritage.js @@ -0,0 +1,47 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-runtime-semantics-classdefinitionevaluation +description: > + Creation of new lexical environment for the class "name" (without a + heritage) +info: | + 1. Let lex be the LexicalEnvironment of the running execution context. + 2. Let classScope be NewDeclarativeEnvironment(lex). + 3. Let classScopeEnvRec be classScope's EnvironmentRecord. + 4. If className is not undefined, then + a. Perform classScopeEnvRec.CreateImmutableBinding(className, true). + 5. If ClassHeritageopt is not present, then + [...] + 6. Else, + a. Set the running execution context's LexicalEnvironment to classScope. + [...] + 11. Set the running execution context's LexicalEnvironment to classScope. +---*/ + +var probeBefore = function() { return C; }; +var setBefore = function() { C = null; }; + +class C { + probe() { + return C; + } + modify() { + C = null; + } +}; + +var cls = probeBefore(); +assert.sameValue(typeof cls, 'function'); +setBefore(); +assert.sameValue(probeBefore(), null); + +assert.sameValue(cls.prototype.probe(), cls, 'inner binding value'); +assert.throws( + TypeError, cls.prototype.modify, 'inner binding rejects modification' +); +assert.sameValue( + typeof cls.prototype.probe(), 'function', 'inner binding is immutable' +); + +reportCompare(0, 0); |