1 /*
2 * Copyright (C) 2006 uguu@users.sourceforge.jp, All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * 3. Neither the name of Clarkware Consulting, Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without prior written permission. For written
18 * permission, please contact clarkware@clarkware.com.
19 *
20 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
21 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
22 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * CLARKWARE CONSULTING OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
26 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 package jp.sourceforge.rpn_computer;
33
34 import java.util.ArrayList;
35 import java.util.List;
36
37 /**
38 * <p>
39 * コンパイルの情報を保持するコンテキストです。
40 * </p>
41 *
42 * @author uguu@users.sourceforge.jp
43 */
44 public final class RpnCompileContext {
45
46 private List commandList = new ArrayList();
47
48 /**
49 * <p>
50 * コンテキストにコンパイルされたコマンドを追加します。
51 * </p>
52 *
53 * @param command
54 * 追加するコマンド。nullの場合、{@link NullPointerException}例外をスローします。
55 */
56 public void add(RpnCommand command) {
57 if (command == null) {
58 throw new NullPointerException("commandがnullです。");
59 }
60 this.commandList.add(command);
61 }
62
63 /**
64 * <p>
65 * コンテキストに追加された一連のコマンドを返します。
66 * </p>
67 *
68 * @return コンテキストに追加された一連のコマンド。
69 */
70 public RpnCommandList toCommandList() {
71 RpnCommand[] commands = (RpnCommand[]) this.commandList.toArray(new RpnCommand[0]);
72 RpnCommandList cl = new RpnCommandList(commands);
73 return cl;
74 }
75 }