Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/type/GenericStamp.java @ 11387:9088d13767f3
Keep a kind in the illegal stamp
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Wed, 21 Aug 2013 18:02:39 +0200 |
parents | ef6915cf1e59 |
children | bca33c3135de |
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/* * Copyright (c) 2012, 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.nodes.type; import com.oracle.graal.api.meta.*; public final class GenericStamp extends Stamp { public enum GenericStampType { Dependency, Extension, Virtual, Condition, Void } private final GenericStampType type; protected GenericStamp(GenericStampType type) { super(type == GenericStampType.Void ? Kind.Void : Kind.Illegal); this.type = type; } public GenericStampType type() { return type; } @Override public ResolvedJavaType javaType(MetaAccessProvider metaAccess) { return metaAccess.lookupJavaType(kind().toJavaClass()); } @Override public String toString() { return type.toString(); } @Override public boolean alwaysDistinct(Stamp other) { return false; } @Override public Stamp meet(Stamp other) { if (other instanceof IllegalStamp) { return other.join(this); } if (!(other instanceof GenericStamp) || ((GenericStamp) other).type != type) { return StampFactory.illegal(Kind.Illegal); } return this; } @Override public Stamp join(Stamp other) { if (other instanceof IllegalStamp) { return other.join(this); } if (!(other instanceof GenericStamp) || ((GenericStamp) other).type != type) { return StampFactory.illegal(Kind.Illegal); } return this; } @Override public int hashCode() { return 31 + ((type == null) ? 0 : type.hashCode()); } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null || getClass() != obj.getClass()) { return false; } if (type != ((GenericStamp) obj).type) { return false; } return true; } }