Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotCompressedNullConstant.java @ 23387:a920338dd4d4
remove JVMCIError and UnsafeUtil classes (JDK-8156759)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 11 May 2016 15:54:36 +0200 |
parents | 1bbd4a7c274b |
children |
line wrap: on
line source
/* * Copyright (c) 2014, 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.hotspot; import jdk.vm.ci.meta.Constant; import jdk.vm.ci.meta.JavaConstant; import jdk.vm.ci.meta.JavaKind; /** * The compressed representation of the {@link JavaConstant#NULL_POINTER null constant}. */ public final class HotSpotCompressedNullConstant implements JavaConstant, HotSpotConstant { public static final JavaConstant COMPRESSED_NULL = new HotSpotCompressedNullConstant(); private HotSpotCompressedNullConstant() { } public JavaKind getJavaKind() { return JavaKind.Object; } @Override public boolean isNull() { return true; } @Override public boolean isCompressed() { return true; } public Constant compress() { throw new IllegalArgumentException(); } public Constant uncompress() { return NULL_POINTER; } @Override public boolean isDefaultForKind() { return true; } @Override public Object asBoxedPrimitive() { throw new IllegalArgumentException(); } @Override public int asInt() { throw new IllegalArgumentException(); } @Override public boolean asBoolean() { throw new IllegalArgumentException(); } @Override public long asLong() { throw new IllegalArgumentException(); } @Override public float asFloat() { throw new IllegalArgumentException(); } @Override public double asDouble() { throw new IllegalArgumentException(); } @Override public String toString() { return JavaConstant.toString(this); } @Override public String toValueString() { return "null"; } @Override public int hashCode() { return System.identityHashCode(this); } @Override public boolean equals(Object o) { return o instanceof HotSpotCompressedNullConstant; } }