tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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super-property-optional-call.js (679B)

      1 // Copyright 2019 Google, LLC.  All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: prod-OptionalExpression
      5 description: >
      6  optional call invoked on super method should be equivalent to call
      7 info: |
      8  OptionalExpression
      9    MemberExpression OptionalChain
     10      SuperProperty OptionalChain
     11 features: [optional-chaining]
     12 ---*/
     13 
     14 let called = false;
     15 let context;
     16 class Base {
     17    method() {
     18      called = true;
     19      context = this;
     20    }
     21 }
     22 class Foo extends Base {
     23    method() {
     24      super.method?.();
     25    }
     26 }
     27 const foo = new Foo();
     28 foo.method();
     29 assert(foo === context);
     30 assert.sameValue(called, true);
     31 
     32 reportCompare(0, 0);