mirror of
https://github.com/tc39/test262.git
synced 2025-05-02 22:10:34 +02:00
a3fffa754b
* Improve test coverage for `super` keyword Add tests for SuperCall and SuperProperty, organized together in the `test/language/expressions/super/` directory. For SuperProperty, include tests for usage from within Object initializers and class bodies because a different set of semantics are observable from each context.
40 lines
1.1 KiB
JavaScript
40 lines
1.1 KiB
JavaScript
// 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-super-keyword
|
|
es6id: 12.3.5
|
|
description: >
|
|
SuperProperty evaluation when the "home" object's prototype is not
|
|
object-coercible.
|
|
info: |
|
|
1. Let propertyKey be StringValue of IdentifierName.
|
|
2. If the code matched by the syntactic production that is being evaluated is
|
|
strict mode code, let strict be true, else let strict be false.
|
|
3. Return ? MakeSuperPropertyReference(propertyKey, strict).
|
|
|
|
12.3.5.3 Runtime Semantics: MakeSuperPropertyReference
|
|
|
|
1. Let env be GetThisEnvironment( ).
|
|
2. If env.HasSuperBinding() is false, throw a ReferenceError exception.
|
|
3. Let actualThis be ? env.GetThisBinding().
|
|
4. Let baseValue be ? env.GetSuperBase().
|
|
5. Let bv be ? RequireObjectCoercible(baseValue).
|
|
features: [class]
|
|
---*/
|
|
|
|
var caught;
|
|
class C extends null {
|
|
method() {
|
|
try {
|
|
super.x;
|
|
} catch (err) {
|
|
caught = err;
|
|
}
|
|
}
|
|
}
|
|
|
|
C.prototype.method();
|
|
|
|
assert.sameValue(typeof caught, 'object');
|
|
assert.sameValue(caught.constructor, TypeError);
|