tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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emulates-undefined.js (811B)

      1 // Copyright (C) 2020 Alexey Shvayka. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-runtime-semantics-caseclauseisselected
      5 description: >
      6  `switch` statement uses Strict Equality Comparison,
      7  which doesn't special-case [[IsHTMLDDA]] objects.
      8 info: |
      9  Runtime Semantics: CaseClauseIsSelected ( C, input )
     10 
     11  [...]
     12  4. Return the result of performing Strict Equality Comparison input === clauseSelector.
     13 
     14  Strict Equality Comparison
     15 
     16  1. If Type(x) is different from Type(y), return false.
     17 features: [IsHTMLDDA]
     18 ---*/
     19 
     20 var IsHTMLDDA = $262.IsHTMLDDA;
     21 
     22 assert.sameValue(
     23  (function() {
     24    switch (IsHTMLDDA) {
     25      case undefined: return 1;
     26      case null: return 2;
     27      case IsHTMLDDA: return 3;
     28    }
     29  })(),
     30  3
     31 );
     32 
     33 reportCompare(0, 0);