Mercurial > hg > graal-jvmci-8
diff jvmci/jdk.vm.ci.meta/src/jdk/vm/ci/meta/PlatformKind.java @ 22672:1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
---|---|
date | Thu, 08 Oct 2015 17:28:41 -0700 |
parents | jvmci/jdk.internal.jvmci.meta/src/jdk/internal/jvmci/meta/PlatformKind.java@c10d5fb9776b |
children | 4b58c92e939b |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jvmci/jdk.vm.ci.meta/src/jdk/vm/ci/meta/PlatformKind.java Thu Oct 08 17:28:41 2015 -0700 @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2013, 2015, 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 jdk.vm.ci.meta; + +/** + * Represents a platform-specific low-level type for values. + */ +public interface PlatformKind { + + String name(); + + public interface Key { + + } + + public class EnumKey<E extends Enum<E>> implements Key { + private final Enum<E> e; + + public EnumKey(Enum<E> 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(); + + /** + * Get the size in bytes of this {@link PlatformKind}. + */ + int getSizeInBytes(); + + /** + * Returns how many primitive values fit in this {@link PlatformKind}. For scalar types this is + * one, for SIMD types it may be higher. + */ + int getVectorLength(); + + /** + * Gets a single type char that identifies this type for use in debug output. + */ + char getTypeChar(); +}