tor-browser

The Tor Browser
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obj-rest-getter-abrupt-get-error.js (1382B)


      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-assignment/obj-rest-getter-abrupt-get-error.case
      3 // - src/dstr-assignment/error/for-of.template
      4 /*---
      5 description: Rest deconstruction doesn't happen if getter return is abrupt (For..of statement)
      6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
      7 features: [object-rest, destructuring-binding]
      8 flags: [generated]
      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 var x;
     28 var count = 0;
     29 
     30 var counter = 0;
     31 
     32 assert.throws(Test262Error, function() {
     33  for ({...x} of [{ get v() { count++; throw new Test262Error(); } }]) {
     34    counter += 1;
     35  }
     36  counter += 1;
     37 });
     38 
     39 assert.sameValue(counter, 0);
     40 
     41 assert.sameValue(count, 1);
     42 
     43 
     44 reportCompare(0, 0);