tor-browser

The Tor Browser
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yield-star-next-not-callable-boolean-throw.js (2557B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/async-generators/yield-star-next-not-callable-boolean-throw.case
      4 // - src/async-generators/default/async-class-expr-static-private-method.template
      5 /*---
      6 description: Not-callable next value in a yield star position - boolean (Static async generator method as a ClassExpression 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    ...
     30 
     31 ---*/
     32 var obj = {
     33  get [Symbol.iterator]() {
     34    throw new Test262Error('it should not get Symbol.iterator');
     35  },
     36  [Symbol.asyncIterator]() {
     37    return {
     38      next: true
     39    };
     40  }
     41 };
     42 
     43 
     44 
     45 var callCount = 0;
     46 
     47 var C = class {
     48    static async *#gen() {
     49        callCount += 1;
     50        yield* obj;
     51          throw new Test262Error('abrupt completion closes iter');
     52 
     53    }
     54    static get gen() { return this.#gen; }
     55 }
     56 
     57 // Test the private fields do not appear as properties before set to value
     58 assert(
     59  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     60  "#gen does not appear as an own property on C prototype"
     61 );
     62 assert(
     63  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     64  "#gen does not appear as an own property on C constructor"
     65 );
     66 
     67 var iter = C.gen();
     68 
     69 iter.next().then(() => {
     70  throw new Test262Error('Promise incorrectly fulfilled.');
     71 }, v => {
     72  assert.sameValue(v.constructor, TypeError, "TypeError");
     73 
     74  iter.next().then(({ done, value }) => {
     75    assert.sameValue(done, true, 'the iterator is completed');
     76    assert.sameValue(value, undefined, 'value is undefined');
     77  }).then($DONE, $DONE);
     78 }).catch($DONE);
     79 
     80 assert.sameValue(callCount, 1);
     81 
     82 // Test the private fields do not appear as properties after set to value
     83 assert(
     84  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     85  "#gen does not appear as an own property on C prototype"
     86 );
     87 assert(
     88  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     89  "#gen does not appear as an own property on C constructor"
     90 );