tor-browser

The Tor Browser
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after-same-line-static-async-method-static-private-methods.js (2558B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/class-elements/static-private-methods.case
      4 // - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
      5 /*---
      6 description: static private methods (field definitions after a static async method in the same line)
      7 esid: prod-FieldDefinition
      8 features: [class-static-methods-private, class, class-fields-public, async-functions]
      9 flags: [generated, async]
     10 includes: [propertyHelper.js]
     11 info: |
     12    ClassElement :
     13      ...
     14      static FieldDefinition ;
     15 
     16    FieldDefinition :
     17      ClassElementName Initializer_opt
     18 
     19    ClassElementName :
     20      PrivateName
     21 
     22    PrivateName :
     23      # IdentifierName
     24 
     25 ---*/
     26 
     27 
     28 var C = class {
     29  static async m() { return 42; } ;
     30  static #x(value) {
     31    return value / 2;
     32  }
     33  static #y(value) {
     34    return value * 2;
     35  }
     36  static x() {
     37    return this.#x(84);
     38  }
     39  static y() {
     40    return this.#y(43);
     41  }
     42 }
     43 
     44 var c = new C();
     45 
     46 assert(
     47  !Object.prototype.hasOwnProperty.call(c, "m"),
     48  "m doesn't appear as an own property on the C instance"
     49 );
     50 assert(
     51  !Object.prototype.hasOwnProperty.call(C.prototype, "m"),
     52  "m doesn't appear as an own property on the C prototype"
     53 );
     54 
     55 verifyProperty(C, "m", {
     56  enumerable: false,
     57  configurable: true,
     58  writable: true,
     59 }, {restore: true});
     60 
     61 C.m().then(function(v) {
     62  assert.sameValue(v, 42);
     63 
     64  function assertions() {
     65    // Cover $DONE handler for async cases.
     66    function $DONE(error) {
     67      if (error) {
     68        throw new Test262Error('Test262:AsyncTestFailure')
     69      }
     70    }
     71    // Test the private methods do not appear as properties before set to value
     72    assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#x"), "test 1");
     73    assert(!Object.prototype.hasOwnProperty.call(C, "#x"), "test 2");
     74    assert(!Object.prototype.hasOwnProperty.call(c, "#x"), "test 3");
     75 
     76    assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#y"), "test 4");
     77    assert(!Object.prototype.hasOwnProperty.call(C, "#y"), "test 5");
     78    assert(!Object.prototype.hasOwnProperty.call(c, "#y"), "test 6");
     79 
     80    // Test if private fields can be sucessfully accessed and set to value
     81    assert.sameValue(C.x(), 42, "test 7");
     82    assert.sameValue(C.y(), 86, "test 8");
     83 
     84    // Test the private fields do not appear as properties before after set to value
     85    assert(!Object.prototype.hasOwnProperty.call(C, "#x"), "test 9");
     86    assert(!Object.prototype.hasOwnProperty.call(C, "#y"), "test 10");
     87  }
     88 
     89  return Promise.resolve(assertions());
     90 }).then($DONE, $DONE);