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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/language/statements/class/subclass/superclass-async-function.js | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/subclass/superclass-async-function.js b/js/src/tests/test262/language/statements/class/subclass/superclass-async-function.js new file mode 100644 index 0000000000..b9e71515ac --- /dev/null +++ b/js/src/tests/test262/language/statements/class/subclass/superclass-async-function.js @@ -0,0 +1,53 @@ +// 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: > + IsConstructor check is performed before "prototype" lookup. + Async functions are not constructors (MakeConstructor is not called on them). +info: | + ClassDefinitionEvaluation + + [...] + 5. Else, + [...] + d. Let superclass be ? GetValue(superclassRef). + e. If superclass is null, then + [...] + f. Else if IsConstructor(superclass) is false, throw a TypeError exception. +features: [async-functions, class, Proxy] +---*/ + +async function fn() {} +Object.defineProperty(fn, "prototype", { + get: function() { + throw new Test262Error("`superclass.prototype` is unreachable"); + }, +}); + +assert.throws(TypeError, function() { + class A extends fn {} +}); + +var bound = (async function() {}).bind(); +Object.defineProperty(bound, "prototype", { + get: function() { + throw new Test262Error("`superclass.prototype` is unreachable"); + }, +}); + +assert.throws(TypeError, function() { + class C extends bound {} +}); + +var proxy = new Proxy(async function() {}, { + get: function() { + throw new Test262Error("`superclass.prototype` is unreachable"); + }, +}); + +assert.throws(TypeError, function() { + class C extends proxy {} +}); + +reportCompare(0, 0); |