Mercurial > hg > graal-jvmci-8
view graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/PlatformKind.java @ 21560:a9fba0dfb155
added lower runtime overhead mechanism for setting "graal.version" system property
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 28 May 2015 16:39:41 +0200 |
parents | 48c1ebd24120 |
children |
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/* * Copyright (c) 2013, 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.jvmci.meta; /** * Represents a platform-specific low-level type for values. */ public interface PlatformKind { String name(); JavaConstant getDefaultValue(); public interface Key { } public class EnumKey implements Key { @SuppressWarnings("rawtypes") private final Enum e; @SuppressWarnings("rawtypes") public EnumKey(Enum e) { this.e = e; } @Override public int hashCode() { return e.ordinal() ^ e.name().hashCode(); } @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (obj instanceof EnumKey) { EnumKey that = (EnumKey) obj; return this.e == that.e; } return false; } } /** * Gets a value associated with this object that can be used as a stable key in a map. The * {@link Object#hashCode()} implementation of the returned value should be stable between VM * executions. */ Key getKey(); default int getVectorLength() { return 1; } }