RepeatNode.java revision 8845:4be14673b9bf 
1/*
2 * Copyright (c) 1998, 2008, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package build.tools.jdwpgen;
27
28import java.util.*;
29import java.io.*;
30
31class RepeatNode extends AbstractTypeNode {
32
33    Node member = null;
34
35    void constrain(Context ctx) {
36        super.constrain(ctx);
37        if (components.size() != 1) {
38            error("Repeat must have exactly one member, use Group for more");
39        }
40        member = components.get(0);
41        if (!(member instanceof TypeNode)) {
42            error("Repeat member must be type specifier");
43        }
44    }
45
46    void document(PrintWriter writer) {
47        docRowStart(writer);
48        writer.println("<td colspan=" +
49                       (maxStructIndent - structIndent) + ">");
50        writer.println("int<td><i>" + name + "</i><td>" +
51                       comment() + "&nbsp;");
52        docRowStart(writer);
53        writer.println("<td colspan=" +
54                       (maxStructIndent - structIndent + 2) + ">");
55        writer.println("Repeated <i>" + name + "</i> times:");
56        ++structIndent;
57        member.document(writer);
58        --structIndent;
59    }
60
61    String docType() {
62        return "-BOGUS-"; // should never call this
63    }
64
65    String javaType() {
66        return member.javaType() + "[]";
67    }
68
69    public void genJavaWrite(PrintWriter writer, int depth,
70                             String writeLabel) {
71        genJavaDebugWrite(writer, depth, writeLabel, "\"\"");
72        indent(writer, depth);
73        writer.println("ps.writeInt(" + writeLabel + ".length);");
74        indent(writer, depth);
75        writer.println("for (int i = 0; i < " + writeLabel + ".length; i++) {;");
76        ((TypeNode)member).genJavaWrite(writer, depth+1, writeLabel + "[i]");
77        indent(writer, depth);
78        writer.println("}");
79    }
80
81    String javaRead() {
82        error("Internal - Should not call RepeatNode.javaRead()");
83        return "";
84    }
85
86    public void genJavaRead(PrintWriter writer, int depth,
87                            String readLabel) {
88        genJavaDebugRead(writer, depth, readLabel, "\"\"");
89        String cntLbl = readLabel + "Count";
90        indent(writer, depth);
91        writer.println("int " + cntLbl + " = ps.readInt();");
92        indent(writer, depth);
93        writer.println(readLabel + " = new " + member.javaType() +
94                       "[" + cntLbl + "];");
95        indent(writer, depth);
96        writer.println("for (int i = 0; i < " + cntLbl + "; i++) {;");
97        member.genJavaRead(writer, depth+1, readLabel + "[i]");
98        indent(writer, depth);
99        writer.println("}");
100    }
101}
102