tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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array-elem-put-const.js (1268B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-assignment/array-elem-put-const.case
      3 // - src/dstr-assignment/error/for-of.template
      4 /*---
      5 description: The assignment target should obey `const` semantics. (For..of statement)
      6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
      7 features: [const, 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 const c = null;
     28 
     29 var counter = 0;
     30 
     31 assert.throws(TypeError, function() {
     32  for ([ c ] of [[1]]) {
     33    counter += 1;
     34  }
     35  counter += 1;
     36 });
     37 
     38 assert.sameValue(counter, 0);
     39 
     40 reportCompare(0, 0);