private-field-after-optional-chain.js (1369B)
1 // This file was procedurally generated from the following sources: 2 // - src/class-elements/private-field-after-optional-chain.case 3 // - src/class-elements/default/cls-expr.template 4 /*--- 5 description: OptionalChain.PrivateIdentifier is a valid syntax (field definitions in a class expression) 6 esid: prod-FieldDefinition 7 features: [class-fields-private, optional-chaining, class] 8 flags: [generated] 9 info: | 10 Updated Productions 11 12 OptionalChain[Yield, Await] : 13 `?.` `[` Expression[+In, ?Yield, ?Await] `]` 14 `?.` IdentifierName 15 `?.` Arguments[?Yield, ?Await] 16 `?.` TemplateLiteral[?Yield, ?Await, +Tagged] 17 OptionalChain[?Yield, ?Await] `[` Expression[+In, ?Yield, ?Await] `]` 18 OptionalChain[?Yield, ?Await] `.` IdentifierName 19 OptionalChain[?Yield, ?Await] Arguments[?Yield, ?Await] 20 OptionalChain[?Yield, ?Await] TemplateLiteral[?Yield, ?Await, +Tagged] 21 OptionalChain[?Yield, ?Await] `.` PrivateIdentifier 22 23 ---*/ 24 25 26 var C = class { 27 #f = 'Test262'; 28 29 method(o) { 30 return o?.c.#f; 31 } 32 } 33 34 let c = new C(); 35 let o = {c: c}; 36 assert.sameValue(c.method(o), 'Test262'); 37 38 assert.sameValue(c.method(null), undefined); 39 assert.sameValue(c.method(undefined), undefined); 40 41 o = {c: new Object()}; 42 assert.throws(TypeError, function() { 43 c.method(o); 44 }, 'accessed private field from an ordinary object'); 45 46 reportCompare(0, 0);