tor-browser

The Tor Browser
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instn-uniq-env-rec.js (1947B)

      1 // |reftest| module
      2 // Copyright (C) 2016 the V8 project authors. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 /*---
      5 description: Modules have distinct environment records
      6 esid: sec-moduledeclarationinstantiation
      7 info: |
      8    [...]
      9    6. Let env be NewModuleEnvironment(realm.[[GlobalEnv]]).
     10    7. Set module.[[Environment]] to env.
     11    [...]
     12 
     13    8.1.2.6 NewModuleEnvironment (E)
     14 
     15    1. Let env be a new Lexical Environment.
     16    [...]
     17 flags: [module]
     18 features: [generators]
     19 ---*/
     20 
     21 import './instn-uniq-env-rec-other_FIXTURE.js'
     22 var first = 1;
     23 let second = 2;
     24 const third = 3;
     25 class fourth {}
     26 function fifth() { return 'fifth'; }
     27 function* sixth() { return 'sixth'; }
     28 
     29 assert.sameValue(first, 1);
     30 assert.sameValue(second, 2);
     31 assert.sameValue(third, 3);
     32 assert.sameValue(typeof fourth, 'function', 'class declaration');
     33 assert.sameValue(typeof fifth, 'function', 'function declaration');
     34 assert.sameValue(fifth(), 'fifth');
     35 assert.sameValue(typeof sixth, 'function', 'generator function declaration');
     36 assert.sameValue(sixth().next().value, 'sixth');
     37 
     38 // Two separate mechanisms are required to ensure that no binding has been
     39 // created for a given identifier. A "bare" reference should produce a
     40 // ReferenceError for non-existent bindings and uninitialized bindings. A
     41 // reference through the `typeof` operator should succeed for non-existent
     42 // bindings and initialized bindings.  Only non-existent bindings satisfy both
     43 // tests.
     44 typeof seventh;
     45 assert.throws(ReferenceError, function() {
     46  seventh;
     47 });
     48 
     49 typeof eight;
     50 assert.throws(ReferenceError, function() {
     51  eighth;
     52 });
     53 
     54 typeof ninth;
     55 assert.throws(ReferenceError, function() {
     56  ninth;
     57 });
     58 
     59 typeof tenth;
     60 assert.throws(ReferenceError, function() {
     61  tenth;
     62 });
     63 
     64 typeof eleventh;
     65 assert.throws(ReferenceError, function() {
     66  eleventh;
     67 });
     68 
     69 typeof twelfth;
     70 assert.throws(ReferenceError, function() {
     71  twelfth;
     72 });
     73 
     74 reportCompare(0, 0);