tor-browser

The Tor Browser
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yield-star-next-call-value-get-abrupt.js (2846B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/async-generators/yield-star-next-call-value-get-abrupt.case
      4 // - src/async-generators/default/async-class-decl-static-private-method.template
      5 /*---
      6 description: Abrupt completion while getting value (Static async generator method as a ClassDeclaration element)
      7 esid: prod-AsyncGeneratorPrivateMethod
      8 features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
      9 flags: [generated, async]
     10 info: |
     11    ClassElement :
     12      static PrivateMethodDefinition
     13 
     14    MethodDefinition :
     15      AsyncGeneratorMethod
     16 
     17    Async Generator Function Definitions
     18 
     19    AsyncGeneratorMethod :
     20      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
     21 
     22 
     23    YieldExpression: yield * AssignmentExpression
     24    ...
     25    6. Repeat
     26      a. If received.[[Type]] is normal, then
     27        ii. Let innerResult be ? Invoke(iterator, "next",
     28            « received.[[Value]] »).
     29        iii. If generatorKind is async, then set innerResult to
     30             ? Await(innerResult).
     31        ...
     32        vi. If done is true, then
     33           1. Return ? IteratorValue(innerResult).
     34    ...
     35 
     36 ---*/
     37 var reason = {};
     38 var obj = {
     39  get [Symbol.iterator]() {
     40    throw new Test262Error('it should not get Symbol.iterator');
     41  },
     42  [Symbol.asyncIterator]() {
     43    return {
     44      next() {
     45        return {
     46          done: true,
     47          get value() {
     48            throw reason;
     49          }
     50        };
     51      }
     52    };
     53  }
     54 };
     55 
     56 
     57 
     58 var callCount = 0;
     59 
     60 class C {
     61    static async *#gen() {
     62        callCount += 1;
     63        yield* obj;
     64          throw new Test262Error('abrupt completion closes iter');
     65 
     66    }
     67    static get gen() { return this.#gen; }
     68 }
     69 
     70 // Test the private fields do not appear as properties before set to value
     71 assert(
     72  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     73  "#gen does not appear as an own property on C prototype"
     74 );
     75 assert(
     76  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     77  "#gen does not appear as an own property on C constructor"
     78 );
     79 
     80 var iter = C.gen();
     81 
     82 iter.next().then(() => {
     83  throw new Test262Error('Promise incorrectly fulfilled.');
     84 }, v => {
     85  assert.sameValue(v, reason, "reject reason");
     86 
     87  iter.next().then(({ done, value }) => {
     88    assert.sameValue(done, true, 'the iterator is completed');
     89    assert.sameValue(value, undefined, 'value is undefined');
     90  }).then($DONE, $DONE);
     91 }).catch($DONE);
     92 
     93 assert.sameValue(callCount, 1);
     94 
     95 // Test the private fields do not appear as properties after set to value
     96 assert(
     97  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     98  "#gen does not appear as an own property on C prototype"
     99 );
    100 assert(
    101  !Object.prototype.hasOwnProperty.call(C, "#gen"),
    102  "#gen does not appear as an own property on C constructor"
    103 );