tor-browser

The Tor Browser
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yield-star-next-call-value-get-abrupt.js (3066B)

      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-private-method.template
      5 /*---
      6 description: Abrupt completion while getting value (Async Generator method as a ClassDeclaration element)
      7 esid: prod-AsyncGeneratorPrivateMethod
      8 features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
      9 flags: [generated, async]
     10 info: |
     11    ClassElement :
     12      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    async *#gen() {
     62        callCount += 1;
     63        yield* obj;
     64          throw new Test262Error('abrupt completion closes iter');
     65 
     66    }
     67    get gen() { return this.#gen; }
     68 }
     69 
     70 const c = new C();
     71 
     72 // Test the private fields do not appear as properties before set to value
     73 assert(
     74  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     75  "#gen does not appear as an own property on C prototype"
     76 );
     77 assert(
     78  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     79  "#gen does not appear as an own property on C constructor"
     80 );
     81 assert(
     82  !Object.prototype.hasOwnProperty.call(c, "#gen"),
     83  "#gen does not appear as an own property on C instance"
     84 );
     85 
     86 var iter = c.gen();
     87 
     88 iter.next().then(() => {
     89  throw new Test262Error('Promise incorrectly fulfilled.');
     90 }, v => {
     91  assert.sameValue(v, reason, "reject reason");
     92 
     93  iter.next().then(({ done, value }) => {
     94    assert.sameValue(done, true, 'the iterator is completed');
     95    assert.sameValue(value, undefined, 'value is undefined');
     96  }).then($DONE, $DONE);
     97 }).catch($DONE);
     98 
     99 assert.sameValue(callCount, 1);
    100 
    101 // Test the private fields do not appear as properties after set to value
    102 assert(
    103  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
    104  "#gen does not appear as an own property on C prototype"
    105 );
    106 assert(
    107  !Object.prototype.hasOwnProperty.call(C, "#gen"),
    108  "#gen does not appear as an own property on C constructor"
    109 );
    110 assert(
    111  !Object.prototype.hasOwnProperty.call(c, "#gen"),
    112  "#gen does not appear as an own property on C instance"
    113 );