tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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array-rest-nested-array-undefined-hole.js (1032B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-assignment/array-rest-nested-array-undefined-hole.case
      3 // - src/dstr-assignment/default/assignment-expr.template
      4 /*---
      5 description: When DestructuringAssignmentTarget is an array literal and the iterable is an array with a "hole", an array with a single `undefined` element should be used as the value of the nested DestructuringAssignment. (AssignmentExpression)
      6 esid: sec-variable-statement-runtime-semantics-evaluation
      7 features: [destructuring-binding]
      8 flags: [generated]
      9 info: |
     10    VariableDeclaration : BindingPattern Initializer
     11 
     12    1. Let rhs be the result of evaluating Initializer.
     13    2. Let rval be GetValue(rhs).
     14    3. ReturnIfAbrupt(rval).
     15    4. Return the result of performing BindingInitialization for
     16       BindingPattern passing rval and undefined as arguments.
     17 ---*/
     18 var x = null;
     19 
     20 var result;
     21 var vals = [ , ];
     22 
     23 result = [...[x]] = vals;
     24 
     25 assert.sameValue(x, undefined);
     26 
     27 assert.sameValue(result, vals);
     28 
     29 reportCompare(0, 0);