| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case |
| // - src/dstr-binding/default/for-await-of-var.template |
| /*--- |
| description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (for-await-of statement) |
| esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation |
| features: [object-rest, destructuring-binding, async-iteration] |
| flags: [generated, async] |
| includes: [propertyHelper.js] |
| info: | |
| IterationStatement : |
| for await ( var ForBinding of AssignmentExpression ) Statement |
| |
| [...] |
| 2. Return ? ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult, |
| varBinding, labelSet, async). |
| |
| 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. |
| [...] |
| ---*/ |
| |
| var iterCount = 0; |
| |
| async function fn() { |
| for await (var {a, b, ...{c, ...rest}} of [{a: 1, b: 2, c: 3, d: 4, e: 5}]) { |
| assert.sameValue(a, 1); |
| assert.sameValue(b, 2); |
| assert.sameValue(c, 3); |
| |
| assert.sameValue(rest.d, 4); |
| assert.sameValue(rest.e, 5); |
| |
| verifyEnumerable(rest, "d"); |
| verifyWritable(rest, "d"); |
| verifyConfigurable(rest, "d"); |
| |
| verifyEnumerable(rest, "e"); |
| verifyWritable(rest, "e"); |
| verifyConfigurable(rest, "e"); |
| |
| |
| iterCount += 1; |
| } |
| } |
| |
| fn() |
| .then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE) |
| .then($DONE, $DONE); |
| |