Method unwrapOptional

java/dagger/internal/codegen/KeyFactory.java:437–447

If key's type is Optional for some T, returns a key with the same qualifier whose type is plain RequestKinds#extractKeyType(RequestKind, TypeMirror) extracted} from T.

(Key key)

   * extracted} from {@code T}.
   */
  Optional<Key> unwrapOptional(Key key) {
    if (!OptionalType.isOptional(key)) {
      return Optional.empty();
    }

    TypeMirror optionalValueType = OptionalType.from(key).valueType();
    return Optional.of(
        key.toBuilder()
            .type(extractKeyType(getRequestKind(optionalValueType), optionalValueType))
            .build());
  }

  /** Returns a key for a {@code @ForReleasableReferences(scope) ReleasableReferenceManager}. */
  Key forReleasableReferenceManager(Scope scope) {