Trace.java revision 12651:6ef01bd40ce2 
1/*
2 * Copyright (c) 2016, 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.core.common.alloc;
24
25import java.util.ArrayList;
26import java.util.Arrays;
27import java.util.Collection;
28
29import org.graalvm.compiler.core.common.cfg.AbstractBlockBase;
30
31/**
32 * Represents a list of sequentially executed {@code AbstractBlockBase blocks}.
33 */
34public class Trace {
35    private final AbstractBlockBase<?>[] blocks;
36    private final ArrayList<Trace> successors;
37    private int id = -1;
38
39    public Trace(Collection<AbstractBlockBase<?>> blocks) {
40        this(blocks.toArray(new AbstractBlockBase<?>[0]));
41    }
42
43    public Trace(AbstractBlockBase<?>[] blocks) {
44        this.blocks = blocks;
45        this.successors = new ArrayList<>();
46    }
47
48    public AbstractBlockBase<?>[] getBlocks() {
49        return blocks;
50    }
51
52    public ArrayList<Trace> getSuccessors() {
53        return successors;
54    }
55
56    public int size() {
57        return getBlocks().length;
58    }
59
60    @Override
61    public String toString() {
62        return "Trace" + Arrays.toString(blocks);
63    }
64
65    public int getId() {
66        assert id != -1 : "id not initialized!";
67        return id;
68    }
69
70    void setId(int id) {
71        this.id = id;
72    }
73}
74