| package org.checkerframework.checker.optional.qual; |
| |
| import java.lang.annotation.Documented; |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| import org.checkerframework.framework.qual.DefaultQualifierInHierarchy; |
| import org.checkerframework.framework.qual.SubtypeOf; |
| |
| /** |
| * The {@link java.util.Optional Optional} container may or may not contain a value. |
| * |
| * @checker_framework.manual #optional-checker Optional Checker |
| */ |
| @Documented |
| @Retention(RetentionPolicy.RUNTIME) |
| @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER}) |
| @SubtypeOf({}) |
| @DefaultQualifierInHierarchy |
| public @interface MaybePresent {} |