tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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yield-star-expr-abrupt.js (2511B)

      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-decl-private-method.template
      5 /*---
      6 description: Abrupt completion while getting yield* operand (Async Generator method as a ClassDeclaration element)
      7 esid: prod-AsyncGeneratorPrivateMethod
      8 features: [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    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 class C {
     40    async *#gen() {
     41        callCount += 1;
     42        yield* abrupt();
     43          throw new Test262Error('abrupt completion closes iter');
     44 
     45    }
     46    get gen() { return this.#gen; }
     47 }
     48 
     49 const c = new C();
     50 
     51 // Test the private fields do not appear as properties before set to value
     52 assert(
     53  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     54  "#gen does not appear as an own property on C prototype"
     55 );
     56 assert(
     57  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     58  "#gen does not appear as an own property on C constructor"
     59 );
     60 assert(
     61  !Object.prototype.hasOwnProperty.call(c, "#gen"),
     62  "#gen does not appear as an own property on C instance"
     63 );
     64 
     65 var iter = c.gen();
     66 
     67 iter.next().then(() => {
     68  throw new Test262Error('Promise incorrectly fulfilled.');
     69 }, v => {
     70  assert.sameValue(v, obj, "reject reason");
     71 
     72  iter.next().then(({ done, value }) => {
     73    assert.sameValue(done, true, 'the iterator is completed');
     74    assert.sameValue(value, undefined, 'value is undefined');
     75  }).then($DONE, $DONE);
     76 }).catch($DONE);
     77 
     78 assert.sameValue(callCount, 1);
     79 
     80 // Test the private fields do not appear as properties after set to value
     81 assert(
     82  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     83  "#gen does not appear as an own property on C prototype"
     84 );
     85 assert(
     86  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     87  "#gen does not appear as an own property on C constructor"
     88 );
     89 assert(
     90  !Object.prototype.hasOwnProperty.call(c, "#gen"),
     91  "#gen does not appear as an own property on C instance"
     92 );