| // This file was procedurally generated from the following sources: |
| // - src/class-elements/fields-anonymous-function-length.case |
| // - src/class-elements/default/cls-expr.template |
| /*--- |
| description: Anonymous function in field initilizer have length properly set (field definitions in a class expression) |
| esid: prod-FieldDefinition |
| features: [class-static-fields-private, class-static-fields-public, class] |
| flags: [generated] |
| info: | |
| Updated Productions |
| |
| FieldDefinition : |
| ClassElementName Initializer_opt |
| |
| InitializeInstanceFields ( O, constructor ) |
| 1. Assert: Type ( O ) is Object. |
| 2. Assert: constructor is an ECMAScript function object. |
| 3. Let fields be the value of constructor.[[Fields]]. |
| 4. For each item fieldRecord in order from fields, |
| a. Perform ? DefineField(O, fieldRecord). |
| 5. Return. |
| |
| DefineField(receiver, fieldRecord) |
| 1. Assert: Type(receiver) is Object. |
| 2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation. |
| 3. Let name be fieldRecord.[[Name]]. |
| 4. Let initializer be fieldRecord.[[Initializer]]. |
| 5. If initializer is not empty, then |
| a. Let initValue be ? Call(initializer, receiver). |
| ... |
| |
| ---*/ |
| |
| |
| var C = class { |
| field = function() {}; |
| #field = (a, b, c, d) => undefined; |
| |
| accessPrivateField() { |
| return this.#field; |
| } |
| } |
| |
| let c = new C(); |
| assert.sameValue(c.accessPrivateField().length, 4); |
| assert.sameValue(c.field.length, 0); |