Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/SafeAccessNode.java @ 7031:2e577202843c
Better implementation of UnsafeCastNode
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Mon, 26 Nov 2012 18:17:14 -0800 |
parents | 33b8603f180d |
children | 5e3d1a68664e |
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/* * Copyright (c) 2011, 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.extended; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.type.*; /** * An analog to {@link AccessNode} with the additional semantics of null-checking * the receiver object before the access. */ public abstract class SafeAccessNode extends FixedWithNextNode { @Input private ValueNode object; @Input private LocationNode location; private final long leafGraphId; public SafeAccessNode(ValueNode object, LocationNode location, Stamp stamp, long leafGraphId) { super(stamp); this.object = object; this.location = location; this.leafGraphId = leafGraphId; } public ValueNode object() { return object; } public LocationNode location() { return location; } public long leafGraphId() { return leafGraphId; } }