tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

rhs-yield-absent-non-strict.js (918B)

      1 // Copyright 2021 the V8 project authors.  All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: Parsing observes the `Yield` production parameter when absent (without strict mode)
      6 info: |
      7  Syntax
      8    RelationalExpression[In, Yield, Await]:
      9    [...]
     10    [+In] RelationalExpression[+In, ?Yield, ?Await] in ShiftExpression[?Yield, ?Await]
     11 
     12  [...]
     13 
     14  1. Let lref be the result of evaluating RelationalExpression.
     15  2. Let lval be ? GetValue(lref).
     16  3. Let rref be the result of evaluating ShiftExpression.
     17  4. Let rval be ? GetValue(rref).
     18  5. If Type(rval) is not Object, throw a TypeError exception.
     19  6. Return ? HasProperty(rval, ? ToPropertyKey(lval)).
     20 esid: sec-relational-operators
     21 flags: [noStrict]
     22 ---*/
     23 
     24 var yield;
     25 
     26 yield = {'': 0};
     27 assert.sameValue('' in (yield), true);
     28 
     29 yield = {};
     30 assert.sameValue('' in (yield), false);
     31 
     32 reportCompare(0, 0);