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41 lines
1.3 KiB
JavaScript
41 lines
1.3 KiB
JavaScript
// Copyright (C) 2015 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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es6id: 14.2.16
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description: >
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Runtime Semantics: Evaluation
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super
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...
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4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
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...
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The non-normative note elaborates on the "scope" argument:
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An ArrowFunction does not define local bindings for arguments, super, this, or new.target. Any reference to arguments, super, or this within an ArrowFunction must resolve to a binding in a lexically enclosing environment. Typically this will be the Function Environment of an immediately enclosing function. Even though an ArrowFunction may contain references to super, the function object created in step 4 is not made into a method by performing MakeMethod. An ArrowFunction that references super is always contained within a non-ArrowFunction and the necessary state to implement super is accessible via the scope that is captured by the function object of the ArrowFunction.
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---*/
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var count = 0;
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class A {
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constructor() {
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count++;
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}
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increment() {
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count++;
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}
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}
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class B extends A {
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constructor() {
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super();
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(_ => super.increment())();
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}
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}
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var bar = new B();
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assert.sameValue(count, 2);
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