| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-elision-step-err.case |
| // - src/dstr-binding/error/async-gen-func-named-expr.template |
| /*--- |
| description: Elision advances iterator and forwards abrupt completions (async generator named function expression) |
| esid: sec-asyncgenerator-definitions-evaluation |
| features: [generators, async-iteration] |
| flags: [generated] |
| info: | |
| AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier |
| ( FormalParameters ) { AsyncGeneratorBody } |
| |
| [...] |
| 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, |
| AsyncGeneratorBody, funcEnv, strict). |
| [...] |
| |
| 13.3.3.6 Runtime Semantics: IteratorBindingInitialization |
| |
| ArrayBindingPattern : [ Elision ] |
| |
| 1. Return the result of performing |
| IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord |
| as the argument. |
| |
| 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation |
| |
| Elision : , |
| |
| 1. If iteratorRecord.[[done]] is false, then |
| a. Let next be IteratorStep(iteratorRecord.[[iterator]]). |
| b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. |
| c. ReturnIfAbrupt(next). |
| |
| ---*/ |
| var following = 0; |
| var iter =function* () { |
| throw new Test262Error(); |
| following += 1; |
| }(); |
| |
| |
| var f; |
| f = async function* g([,]) { |
| |
| }; |
| |
| assert.throws(Test262Error, function() { |
| f(iter); |
| }); |
| |
| iter.next(); |
| assert.sameValue(following, 0, 'Iterator was properly closed.'); |