1 /*
   2  * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 package org.graalvm.compiler.api.replacements;
  26 
  27 import java.lang.annotation.ElementType;
  28 import java.lang.annotation.Retention;
  29 import java.lang.annotation.RetentionPolicy;
  30 import java.lang.annotation.Target;
  31 
  32 /**
  33  * Annotates a method replaced by a compile-time constant. A (resolved) call to the annotated method
  34  * is replaced with a constant obtained by calling the annotated method via reflection.
  35  *
  36  * All arguments to such a method (including the receiver if applicable) must be compile-time
  37  * constants.
  38  */
  39 @Retention(RetentionPolicy.RUNTIME)
  40 @Target(ElementType.METHOD)
  41 public @interface Fold {
  42 
  43     /**
  44      * Annotates a parameter to an {@link Fold}-annotated method. This parameter will be
  45      * automatically injected by the compiler. The caller should always pass {@code null}.
  46      */
  47     @Retention(RetentionPolicy.RUNTIME)
  48     @Target(ElementType.PARAMETER)
  49     public @interface InjectedParameter {
  50     }
  51 }