1/*
2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.graalvm.compiler.nodes.java;
24
25import org.graalvm.compiler.core.common.type.Stamp;
26import org.graalvm.compiler.graph.NodeClass;
27import org.graalvm.compiler.nodeinfo.NodeInfo;
28import org.graalvm.compiler.nodes.FrameState;
29import org.graalvm.compiler.nodes.ValueNode;
30import org.graalvm.compiler.nodes.spi.ArrayLengthProvider;
31
32/**
33 * The {@code AbstractNewArrayNode} is used for all 1-dimensional array allocations.
34 */
35@NodeInfo
36public abstract class AbstractNewArrayNode extends AbstractNewObjectNode implements ArrayLengthProvider {
37
38    public static final NodeClass<AbstractNewArrayNode> TYPE = NodeClass.create(AbstractNewArrayNode.class);
39    @Input protected ValueNode length;
40
41    @Override
42    public ValueNode length() {
43        return length;
44    }
45
46    protected AbstractNewArrayNode(NodeClass<? extends AbstractNewArrayNode> c, Stamp stamp, ValueNode length, boolean fillContents, FrameState stateBefore) {
47        super(c, stamp, fillContents, stateBefore);
48        this.length = length;
49    }
50
51    /**
52     * The list of node which produce input for this instruction.
53     */
54    public ValueNode dimension(int index) {
55        assert index == 0;
56        return length();
57    }
58
59    /**
60     * The rank of the array allocated by this node, i.e. how many array dimensions.
61     */
62    public int dimensionCount() {
63        return 1;
64    }
65}
66