tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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spread-obj-skip-non-enumerable.js (970B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/spread/obj-skip-non-enumerable.case
      3 // - src/spread/default/call-expr.template
      4 /*---
      5 description: Object Spread doesn't copy non-enumerable properties (CallExpression)
      6 esid: sec-function-calls-runtime-semantics-evaluation
      7 features: [object-spread]
      8 flags: [generated]
      9 info: |
     10    CallExpression : MemberExpression Arguments
     11 
     12    [...]
     13    9. Return EvaluateDirectCall(func, thisValue, Arguments, tailCall).
     14 
     15    12.3.4.3 Runtime Semantics: EvaluateDirectCall
     16 
     17    1. Let argList be ArgumentListEvaluation(arguments).
     18    [...]
     19    6. Let result be Call(func, thisValue, argList).
     20    [...]
     21 ---*/
     22 
     23 let o = {};
     24 Object.defineProperty(o, "b", {value: 3, enumerable: false});
     25 
     26 
     27 var callCount = 0;
     28 
     29 (function(obj) {
     30  assert.sameValue(obj.hasOwnProperty("b"), false)
     31  assert.sameValue(Object.keys(obj).length, 0);
     32  callCount += 1;
     33 }({...o}));
     34 
     35 assert.sameValue(callCount, 1);
     36 
     37 reportCompare(0, 0);