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* 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.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-super-keyword
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es6id: 12.3.5
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description: >
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SuperProperty evaluation when the "home" object's prototype is not
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object-coercible.
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info: |
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[...]
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4. If the code matched by the syntactic production that is being evaluated is
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strict mode code, let strict be true, else let strict be false.
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5. Return ? MakeSuperPropertyReference(propertyKey, strict).
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12.3.5.3 Runtime Semantics: MakeSuperPropertyReference
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1. Let env be GetThisEnvironment( ).
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2. If env.HasSuperBinding() is false, throw a ReferenceError exception.
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3. Let actualThis be ? env.GetThisBinding().
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4. Let baseValue be ? env.GetSuperBase().
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5. Let bv be ? RequireObjectCoercible(baseValue).
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features: [class]
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---*/
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var caught;
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class C extends null {
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method() {
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try {
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super['x'];
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} catch (err) {
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caught = err;
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}
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}
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}
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C.prototype.method();
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assert.sameValue(typeof caught, 'object');
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assert.sameValue(caught.constructor, TypeError);
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