| /* |
| * This file is part of the Jikes RVM project (http://jikesrvm.org). |
| * |
| * This file is licensed to You under the Common Public License (CPL); |
| * You may not use this file except in compliance with the License. You |
| * may obtain a copy of the License at |
| * |
| * http://www.opensource.org/licenses/cpl1.0.php |
| * |
| * See the COPYRIGHT.txt file distributed with this work for information |
| * regarding copyright ownership. |
| */ |
| package org.vmmagic; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Inherited; |
| |
| /** |
| * An intrinsic method is a method that is built in (that is, intrinsic) to the compiler |
| * rather than part of a class library. Intrinsic methods are an escape hatch to provide |
| * "magic" that is inexpressible int the Java programming language. A compiler intrinsic |
| * will usually generate a specific code sequence that is inlined and optimized as part |
| * by the compiler. Unless an intrinsic method is expected to be executed in a non-intrinsic |
| * aware compiler, the body of the method should be empty. |
| * |
| * <p>If the Intrinsic annotation is applied to a method then then the method is a compiler |
| * intrinsic. If the Intrinsic annotation is applied to a class then all the methods of |
| * the class AND all subclasses are intrinsic.</p> |
| * |
| * <p>NOTE: At the current time the Intrinsic annotation is only used for documentation |
| * purposes but in the near future it is expected that the semantics of the annotation will |
| * be enforced by the compiler.</p> |
| */ |
| @Retention(RetentionPolicy.RUNTIME) |
| @Target({ElementType.TYPE,ElementType.METHOD}) |
| @Inherited |
| public @interface Intrinsic { } |