1 /*
   2  * Copyright (c) 1998, 2013, 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 
  26 package build.tools.jdwpgen;
  27 
  28 import java.util.*;
  29 import java.io.*;
  30 
  31 class 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 }