/*
* Copyright (c) 2004 - present Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/

package com.facebook.infer.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * A class field, or method return/parameter type, of Optional type is annotated @Present
 * to indicate that its value cannot be absent.
 * Users of the method/field and static checkers must enforce, and can rely on, this invariant.
 */
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.TYPE, ElementType.FIELD, ElementType.CONSTRUCTOR,
  ElementType.METHOD, ElementType.PARAMETER})
public @interface Present {}