Mercurial > hg > truffle
diff graal/com.oracle.graal.hotspotvmconfig/src/com/oracle/graal/hotspotvmconfig/HotSpotVMValue.java @ 15805:dffc37fa7157
initialize HotSpotVMConfig fields efficiently from C++
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Tue, 20 May 2014 13:46:34 -0700 |
parents | |
children | 0a7e9347f8d0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.hotspotvmconfig/src/com/oracle/graal/hotspotvmconfig/HotSpotVMValue.java Tue May 20 13:46:34 2014 -0700 @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.graal.hotspotvmconfig; + +import java.lang.annotation.*; + +@Target(ElementType.FIELD) +@Retention(RetentionPolicy.RUNTIME) +public @interface HotSpotVMValue { + + /** + * A C++ expression to be evaluated and assigned to the field. + */ + String expression(); + + enum Type { + /** + * A C++ address which might require extra casts to be safely assigned to a Java field. + */ + ADDRESS, + + /** + * A simple value which can be assigned to a regular Java field. + */ + VALUE + } + + Type get() default Type.VALUE; + + /** + * List of preprocessor symbols that should guard initialization of this value. + */ + String[] defines() default {}; + +}