JSTests/test262/test/language/statements/for-of/dstr-obj-id-init-fn-name-fn.js

// This file was procedurally generated from the following sources:
// - src/dstr-assignment/obj-id-init-fn-name-fn.case
// - src/dstr-assignment/default/for-of.template
/*---
description: Assignment of function `name` attribute (FunctionExpression) (For..of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
es6id: 13.7.5.11
features: [destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
    IterationStatement :
      for ( LeftHandSideExpression of AssignmentExpression ) Statement

    1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« »,
       AssignmentExpression, iterate).
    2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
       keyResult, assignment, labelSet).

    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation

    [...]
    4. If destructuring is true and if lhsKind is assignment, then
       a. Assert: lhs is a LeftHandSideExpression.
       b. Let assignmentPattern be the parse of the source text corresponding to
          lhs using AssignmentPattern as the goal symbol.
    [...]

    AssignmentProperty : IdentifierReference Initializeropt
    [...] 6. If Initializeropt is present and v is undefined, then
       [...]
       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
          i. Let hasNameProperty be HasOwnProperty(v, "name").
          ii. ReturnIfAbrupt(hasNameProperty).
          iii. If hasNameProperty is false, perform SetFunctionName(v, P).

---*/
var xFn, fn;

var counter = 0;

for ({ xFn = function x() {}, fn = function() {} } of [{}]) {
  assert.notSameValue(xFn.name, 'xFn');

  assert.sameValue(fn.name, 'fn');
  verifyNotEnumerable(fn, 'name');
  verifyNotWritable(fn, 'name');
  verifyConfigurable(fn, 'name');
  counter += 1;
}

assert.sameValue(counter, 1);