| // This file was procedurally generated from the following sources: |
| // - src/class-elements/grammar-private-environment-on-class-heritage-chained-usage.case |
| // - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template |
| /*--- |
| description: It's a SyntaxError if a class expression evaluated on ClassHeritage uses an private name declared on subclass. (class expression) |
| esid: prod-ClassElement |
| features: [class-fields-private, class-fields-public, class] |
| flags: [generated] |
| negative: |
| phase: parse |
| type: SyntaxError |
| info: | |
| Runtime Semantics: ClassDefinitionEvaluation |
| |
| ClassTail : ClassHeritage { ClassBody } |
| ... |
| 5. Let outerPrivateEnvironment be the PrivateEnvironment of the running execution context. |
| 6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment). |
| 7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord. |
| 8. If ClassBodyopt is present, then |
| a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt, |
| i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true). |
| 9. If ClassHeritageopt is not present, then |
| a. Let protoParent be the intrinsic object %ObjectPrototype%. |
| b. Let constructorParent be the intrinsic object %FunctionPrototype%. |
| 10. Else, |
| a. Set the running execution context's LexicalEnvironment to classScope. |
| b. NOTE: The running execution context's PrivateEnvironment is outerPrivateEnvironment when evaluating ClassHeritage. |
| ... |
| |
| ---*/ |
| |
| |
| $DONOTEVALUATE(); |
| |
| var C = class extends class extends class extends class { x = this.#foo; } { #foo; x = this.#bar; } { #bar; x = this.#fuz; } |
| { |
| #fuz; |
| }; |