cpn-class-expr-computed-property-name-from-assignment-expression-coalesce.js (1291B)
1 // This file was procedurally generated from the following sources: 2 // - src/computed-property-names/computed-property-name-from-assignment-expression-coalesce.case 3 // - src/computed-property-names/evaluation/class-expression.template 4 /*--- 5 description: Computed property name from assignment expression coalesce (ComputedPropertyName in ClassExpression) 6 esid: prod-ComputedPropertyName 7 features: [computed-property-names, logical-assignment-operators] 8 flags: [generated] 9 info: | 10 ClassExpression: 11 classBindingIdentifier opt ClassTail 12 13 ClassTail: 14 ClassHeritage opt { ClassBody opt } 15 16 ClassBody: 17 ClassElementList 18 19 ClassElementList: 20 ClassElement 21 22 ClassElement: 23 MethodDefinition 24 25 MethodDefinition: 26 PropertyName ... 27 get PropertyName ... 28 set PropertyName ... 29 30 PropertyName: 31 ComputedPropertyName 32 33 ComputedPropertyName: 34 [ AssignmentExpression ] 35 ---*/ 36 let x = null; 37 38 39 let C = class { 40 [x ??= 1]() { 41 return 2; 42 } 43 static [x ??= 1]() { 44 return 2; 45 } 46 }; 47 48 let c = new C(); 49 50 assert.sameValue( 51 c[x ??= 1](), 52 2 53 ); 54 assert.sameValue( 55 C[x ??= 1](), 56 2 57 ); 58 assert.sameValue( 59 c[String(x ??= 1)](), 60 2 61 ); 62 assert.sameValue( 63 C[String(x ??= 1)](), 64 2 65 ); 66 67 assert.sameValue(x, 1); 68 69 reportCompare(0, 0);