wrapped-in-sc-private-names.js (1623B)
1 // This file was procedurally generated from the following sources: 2 // - src/class-elements/private-names.case 3 // - src/class-elements/productions/cls-decl-wrapped-in-sc.template 4 /*--- 5 description: private names (fields definition wrapped in semicolons) 6 esid: prod-FieldDefinition 7 features: [class-fields-private, class, class-fields-public] 8 flags: [generated] 9 info: | 10 ClassElement : 11 ... 12 FieldDefinition ; 13 14 FieldDefinition : 15 ClassElementName Initializer_opt 16 17 ClassElementName : 18 PrivateName 19 20 PrivateName : 21 # IdentifierName 22 23 ---*/ 24 25 26 class C { 27 ;;;; 28 ;;;;;;#x; #y;;;;;;; 29 ;;;; 30 x() { 31 this.#x = 42; 32 return this.#x; 33 } 34 y() { 35 this.#y = 43; 36 return this.#y; 37 } 38 } 39 40 var c = new C(); 41 42 // Test the private fields do not appear as properties before set to value 43 assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#x"), "test 1"); 44 assert(!Object.prototype.hasOwnProperty.call(C, "#x"), "test 2"); 45 assert(!Object.prototype.hasOwnProperty.call(c, "#x"), "test 3"); 46 47 assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#y"), "test 4"); 48 assert(!Object.prototype.hasOwnProperty.call(C, "#y"), "test 5"); 49 assert(!Object.prototype.hasOwnProperty.call(c, "#y"), "test 6"); 50 51 // Test if private fields can be sucessfully accessed and set to value 52 assert.sameValue(c.x(), 42, "test 7"); 53 assert.sameValue(c.y(), 43, "test 8"); 54 55 // Test the private fields do not appear as properties before after set to value 56 assert(!Object.prototype.hasOwnProperty.call(c, "#x"), "test 9"); 57 assert(!Object.prototype.hasOwnProperty.call(c, "#y"), "test 10"); 58 59 reportCompare(0, 0);