tor-browser

The Tor Browser
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yield-star-expr-abrupt.js (2296B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/async-generators/yield-star-expr-abrupt.case
      4 // - src/async-generators/default/async-class-expr-static-private-method.template
      5 /*---
      6 description: Abrupt completion while getting yield* operand (Static async generator method as a ClassExpression element)
      7 esid: prod-AsyncGeneratorPrivateMethod
      8 features: [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    1. Let exprRef be the result of evaluating AssignmentExpression.
     26    2. Let value be ? GetValue(exprRef).
     27    ...
     28 
     29 ---*/
     30 var obj = {};
     31 var abrupt = function() {
     32  throw obj;
     33 };
     34 
     35 
     36 
     37 var callCount = 0;
     38 
     39 var C = class {
     40    static async *#gen() {
     41        callCount += 1;
     42        yield* abrupt();
     43          throw new Test262Error('abrupt completion closes iter');
     44 
     45    }
     46    static get gen() { return this.#gen; }
     47 }
     48 
     49 // Test the private fields do not appear as properties before set to value
     50 assert(
     51  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     52  "#gen does not appear as an own property on C prototype"
     53 );
     54 assert(
     55  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     56  "#gen does not appear as an own property on C constructor"
     57 );
     58 
     59 var iter = C.gen();
     60 
     61 iter.next().then(() => {
     62  throw new Test262Error('Promise incorrectly fulfilled.');
     63 }, v => {
     64  assert.sameValue(v, obj, "reject reason");
     65 
     66  iter.next().then(({ done, value }) => {
     67    assert.sameValue(done, true, 'the iterator is completed');
     68    assert.sameValue(value, undefined, 'value is undefined');
     69  }).then($DONE, $DONE);
     70 }).catch($DONE);
     71 
     72 assert.sameValue(callCount, 1);
     73 
     74 // Test the private fields do not appear as properties after set to value
     75 assert(
     76  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     77  "#gen does not appear as an own property on C prototype"
     78 );
     79 assert(
     80  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     81  "#gen does not appear as an own property on C constructor"
     82 );