tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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field-declaration.js (2355B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/class-elements/field-declaration.case
      3 // - src/class-elements/default/cls-decl.template
      4 /*---
      5 description: Fields are defined (field definitions in a class declaration)
      6 esid: prod-FieldDefinition
      7 features: [class-fields-public, class]
      8 flags: [generated]
      9 includes: [propertyHelper.js]
     10 info: |
     11    Updated Productions
     12 
     13    ClassElement :
     14      ...
     15      FieldDefinition ;
     16 
     17    FieldDefinition :
     18      ClassElementName Initializer_opt
     19 
     20    ClassElementName :
     21      PropertyName
     22 
     23    PropertyName :
     24      LiteralPropertyName
     25      ComputedPropertyName
     26 
     27    LiteralPropertyName :
     28      IdentifierName
     29      StringLiteral
     30      NumericLiteral
     31 
     32    ClassDefinitionEvaluation:
     33      ...
     34 
     35      26. Let instanceFields be a new empty List.
     36      28. For each ClassElement e in order from elements,
     37        a. If IsStatic of e is false, then
     38          i. Let field be the result of performing ClassElementEvaluation for e with arguments proto and false.
     39        b. ...
     40        c. ...
     41        d. If field is not empty, append field to instanceFields.
     42 
     43      ...
     44 
     45      30. Set F.[[Fields]] to instanceFields.
     46      ...
     47 
     48 ---*/
     49 var computed = 'h';
     50 
     51 
     52 class C {
     53  f = 'test262';
     54  'g';
     55  0 = 'bar';
     56  [computed];
     57 }
     58 
     59 let c = new C();
     60 
     61 assert.sameValue(C.f, undefined);
     62 assert.sameValue(C.g, undefined);
     63 assert.sameValue(C.h, undefined);
     64 assert.sameValue(C[0], undefined);
     65 
     66 assert(
     67  !Object.prototype.hasOwnProperty.call(C, 'f'),
     68  "f does not appear as an own property on C constructor"
     69 );
     70 assert(
     71  !Object.prototype.hasOwnProperty.call(C, 'g'),
     72  "g does not appear as an own property on C constructor"
     73 );
     74 assert(
     75  !Object.prototype.hasOwnProperty.call(C, 'h'),
     76  "h does not appear as an own property on C constructor"
     77 );
     78 assert(
     79  !Object.prototype.hasOwnProperty.call(C, 0),
     80  "0 does not appear as an own property on C constructor"
     81 );
     82 
     83 verifyProperty(c, 'f', {
     84  value: 'test262',
     85  enumerable: true,
     86  writable: true,
     87  configurable: true
     88 });
     89 
     90 verifyProperty(c, 'g', {
     91  value: undefined,
     92  enumerable: true,
     93  writable: true,
     94  configurable: true
     95 });
     96 
     97 verifyProperty(c, 0, {
     98  value: 'bar',
     99  enumerable: true,
    100  writable: true,
    101  configurable: true
    102 });
    103 
    104 verifyProperty(c, 'h', {
    105  value: undefined,
    106  enumerable: true,
    107  writable: true,
    108  configurable: true
    109 });
    110 
    111 reportCompare(0, 0);