JSTests/test262/test/language/statements/for-await-of/async-func-dstr-let-ary-ptrn-elem-obj-val-undef.js

// This file was procedurally generated from the following sources:
// - src/dstr-binding-for-await/ary-ptrn-elem-obj-val-undef.case
// - src/dstr-binding-for-await/error/for-await-of-async-func-let.template
/*---
description: Nested object destructuring with a value of `undefined` (for-await-of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
features: [destructuring-binding, async-iteration]
flags: [generated, async]
info: |
    IterationStatement :
        for await ( ForDeclaration of AssignmentExpression ) Statement

    [...]
    2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
      lexicalBinding, labelSet, async).

    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation

    [...]
    4. Let destructuring be IsDestructuring of lhs.
    [...]
    6. Repeat
       [...]
       j. If destructuring is false, then
          [...]
       k. Else
          i. If lhsKind is assignment, then
             [...]
          ii. Else if lhsKind is varBinding, then
              [...]
          iii. Else,
               1. Assert: lhsKind is lexicalBinding.
               2. Assert: lhs is a ForDeclaration.
               3. Let status be the result of performing BindingInitialization
                  for lhs passing nextValue and iterationEnv as arguments.
          [...]

    13.3.3.6 Runtime Semantics: IteratorBindingInitialization

    BindingElement : BindingPattern Initializer_opt

    1. If iteratorRecord.[[done]] is false, then
       [...]
       e. Else
          i. Let v be IteratorValue(next).
          [...]
    4. Return the result of performing BindingInitialization of BindingPattern
       with v and environment as the arguments.

    13.3.3.5 Runtime Semantics: BindingInitialization

    BindingPattern : ObjectBindingPattern

    1. Let valid be RequireObjectCoercible(value).
    2. ReturnIfAbrupt(valid).
---*/

async function fn() {
  for await (let [{ x }] of [[]]) {
    return;
  }
}

fn()
  .then(_ => {
    throw new Test262Error("Expected async function to reject, but resolved.");
  }, ({ constructor }) => {
    assert.sameValue(constructor, TypeError);
    
  })
  .then($DONE, $DONE);