| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case |
| // - src/dstr-binding/error/async-gen-meth.template |
| /*--- |
| description: Error forwarding when IteratorValue returns an abrupt completion (async generator method) |
| esid: sec-asyncgenerator-definitions-propertydefinitionevaluation |
| features: [Symbol.iterator, async-iteration] |
| flags: [generated] |
| info: | |
| AsyncGeneratorMethod : |
| async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) |
| { AsyncGeneratorBody } |
| |
| 1. Let propKey be the result of evaluating PropertyName. |
| 2. ReturnIfAbrupt(propKey). |
| 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true. |
| Otherwise let strict be false. |
| 4. Let scope be the running execution context's LexicalEnvironment. |
| 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters, |
| AsyncGeneratorBody, scope, strict). |
| [...] |
| |
| 13.3.3.6 Runtime Semantics: IteratorBindingInitialization |
| BindingRestElement : ... BindingIdentifier |
| 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, |
| environment). |
| 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, |
| [...] |
| c. Let nextValue be IteratorValue(next). |
| d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to |
| true. |
| e. ReturnIfAbrupt(nextValue). |
| |
| ---*/ |
| var poisonedValue = Object.defineProperty({}, 'value', { |
| get: function() { |
| throw new Test262Error(); |
| } |
| }); |
| var iter = {}; |
| iter[Symbol.iterator] = function() { |
| return { |
| next: function() { |
| return poisonedValue; |
| } |
| }; |
| }; |
| |
| |
| var obj = { |
| async *method([...x]) { |
| |
| } |
| }; |
| |
| assert.throws(Test262Error, function() { |
| obj.method(iter); |
| }); |