tor-browser

The Tor Browser
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array-rest-put-unresolvable-no-strict.js (1369B)


      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-assignment/array-rest-put-unresolvable-no-strict.case
      3 // - src/dstr-assignment/default/for-of.template
      4 /*---
      5 description: Outside of strict mode, if the the assignment target is an unresolvable reference, a new `var` binding should be created in the environment record. (For..of statement)
      6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
      7 features: [destructuring-binding]
      8 flags: [generated, noStrict]
      9 info: |
     10    IterationStatement :
     11      for ( LeftHandSideExpression of AssignmentExpression ) Statement
     12 
     13    1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« »,
     14       AssignmentExpression, iterate).
     15    2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
     16       keyResult, assignment, labelSet).
     17 
     18    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
     19 
     20    [...]
     21    4. If destructuring is true and if lhsKind is assignment, then
     22       a. Assert: lhs is a LeftHandSideExpression.
     23       b. Let assignmentPattern be the parse of the source text corresponding to
     24          lhs using AssignmentPattern as the goal symbol.
     25    [...]
     26 ---*/
     27 {
     28 
     29 var counter = 0;
     30 
     31 for ([ ...unresolvable ] of [[]]) {
     32  
     33  counter += 1;
     34 }
     35 
     36 assert.sameValue(counter, 1);
     37 
     38 }
     39 
     40 assert.sameValue(unresolvable.length, 0);
     41 
     42 reportCompare(0, 0);