src/class-elements/field-declaration.case

// Copyright (C) 2019 Caio Lima (Igalia SL), Adrian Heine. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
desc: Fields are defined
info: |
  Updated Productions

  ClassElement :
    ...
    FieldDefinition ;

  FieldDefinition :
    ClassElementName Initializer_opt

  ClassElementName :
    PropertyName

  PropertyName :
    LiteralPropertyName
    ComputedPropertyName

  LiteralPropertyName :
    IdentifierName
    StringLiteral
    NumericLiteral

  ClassDefinitionEvaluation:
    ...

    26. Let instanceFields be a new empty List.
    28. For each ClassElement e in order from elements,
      a. If IsStatic of e is false, then
        i. Let field be the result of performing ClassElementEvaluation for e with arguments proto and false.
      b. ...
      c. ...
      d. If field is not empty, append field to instanceFields.

    ...

    30. Set F.[[Fields]] to instanceFields.
    ...

template: default
includes: [propertyHelper.js]
features: [class-fields-public]
---*/

//- setup
var computed = 'h';
//- elements
f = 'test262';
'g';
0 = 'bar';
[computed];
//- assertions
let c = new C();

assert.sameValue(C.f, undefined);
assert.sameValue(C.g, undefined);
assert.sameValue(C.h, undefined);
assert.sameValue(C[0], undefined);

assert(
  !Object.prototype.hasOwnProperty.call(C, 'f'),
  "f does not appear as an own property on C constructor"
);
assert(
  !Object.prototype.hasOwnProperty.call(C, 'g'),
  "g does not appear as an own property on C constructor"
);
assert(
  !Object.prototype.hasOwnProperty.call(C, 'h'),
  "h does not appear as an own property on C constructor"
);
assert(
  !Object.prototype.hasOwnProperty.call(C, 0),
  "0 does not appear as an own property on C constructor"
);

verifyProperty(c, 'f', {
  value: 'test262',
  enumerable: true,
  writable: true,
  configurable: true
});

verifyProperty(c, 'g', {
  value: undefined,
  enumerable: true,
  writable: true,
  configurable: true
});

verifyProperty(c, 0, {
  value: 'bar',
  enumerable: true,
  writable: true,
  configurable: true
});

verifyProperty(c, 'h', {
  value: undefined,
  enumerable: true,
  writable: true,
  configurable: true
});