tor-browser

The Tor Browser
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after-same-line-static-async-gen-literal-names.js (2684B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/class-elements/literal-names.case
      4 // - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
      5 /*---
      6 description: Literal property names (field definitions after a static async generator in the same line)
      7 esid: prod-FieldDefinition
      8 features: [class-fields-public, class, async-iteration]
      9 flags: [generated, async]
     10 includes: [propertyHelper.js]
     11 info: |
     12    ClassElement:
     13      ...
     14      FieldDefinition ;
     15 
     16    FieldDefinition:
     17      ClassElementName Initializer_opt
     18 
     19    ClassElementName:
     20      PropertyName
     21 
     22 ---*/
     23 const fn = function() {}
     24 
     25 
     26 
     27 var C = class {
     28  static async *m() { return 42; } a; b = 42;
     29  c = fn;
     30  
     31 }
     32 
     33 var c = new C();
     34 
     35 assert(
     36  !Object.prototype.hasOwnProperty.call(c, "m"),
     37  "m doesn't appear as an own property on the C instance"
     38 );
     39 assert(
     40  !Object.prototype.hasOwnProperty.call(C.prototype, "m"),
     41  "m doesn't appear as an own property on the C prototype"
     42 );
     43 
     44 verifyProperty(C, "m", {
     45  enumerable: false,
     46  configurable: true,
     47  writable: true,
     48 }, {restore: true});
     49 
     50 C.m().next().then(function(v) {
     51  assert.sameValue(v.value, 42);
     52  assert.sameValue(v.done, true);
     53 
     54  function assertions() {
     55    // Cover $DONE handler for async cases.
     56    function $DONE(error) {
     57      if (error) {
     58        throw new Test262Error('Test262:AsyncTestFailure')
     59      }
     60    }
     61    assert(
     62      !Object.prototype.hasOwnProperty.call(C.prototype, "a"),
     63      "a doesn't appear as an own property on C prototype"
     64    );
     65    assert(
     66      !Object.prototype.hasOwnProperty.call(C, "a"),
     67      "a doesn't appear as an own property on C constructor"
     68    );
     69 
     70    verifyProperty(c, "a", {
     71      value: undefined,
     72      enumerable: true,
     73      writable: true,
     74      configurable: true
     75    });
     76 
     77    assert(
     78      !Object.prototype.hasOwnProperty.call(C.prototype, "b"),
     79      "b doesn't appear as an own property on C prototype"
     80    );
     81    assert(
     82      !Object.prototype.hasOwnProperty.call(C, "b"),
     83      "b doesn't appear as an own property on C constructor"
     84    );
     85 
     86    verifyProperty(c, "b", {
     87      value: 42,
     88      enumerable: true,
     89      writable: true,
     90      configurable: true
     91    });
     92 
     93    assert(
     94      !Object.prototype.hasOwnProperty.call(C.prototype, "c"),
     95      "c doesn't appear as an own property on C prototype"
     96    );
     97    assert(
     98      !Object.prototype.hasOwnProperty.call(C, "c"),
     99      "c doesn't appear as an own property on C constructor"
    100    );
    101 
    102    verifyProperty(c, "c", {
    103      value: fn,
    104      enumerable: true,
    105      writable: true,
    106      configurable: true
    107    });
    108 
    109  }
    110 
    111  return Promise.resolve(assertions());
    112 }).then($DONE, $DONE);