JSTests/test262/test/language/statements/for-of/dstr/var-ary-ptrn-elem-id-init-throws.js

// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
// - src/dstr-binding/error/for-of-var.template
/*---
description: Destructuring initializer returns an abrupt completion (for-of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
    IterationStatement :
        for ( var ForBinding of AssignmentExpression ) Statement

    [...]
    3. Return ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult,
       varBinding, labelSet).

    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation

    [...]
    3. Let destructuring be IsDestructuring of lhs.
    [...]
    5. Repeat
       [...]
       h. If destructuring is false, then
          [...]
       i. Else
          i. If lhsKind is assignment, then
             [...]
          ii. Else if lhsKind is varBinding, then
              1. Assert: lhs is a ForBinding.
              2. Let status be the result of performing BindingInitialization
                 for lhs passing nextValue and undefined as the arguments.
          [...]

    13.3.3.6 Runtime Semantics: IteratorBindingInitialization

    SingleNameBinding : BindingIdentifier Initializeropt

    [...]
    6. If Initializer is present and v is undefined, then
       a. Let defaultValue be the result of evaluating Initializer.
       b. Let v be GetValue(defaultValue).
       c. ReturnIfAbrupt(v).
---*/

assert.throws(Test262Error, function() {
  for (var [x = (function() { throw new Test262Error(); })()] of [[undefined]]) {
    return;
  }
});