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         writer.println("<tr>");
  48         writer.println("<td>" + indentElement(structIndent, "int"));
  49         writer.println("<th scope=\"row\"><i>" + name() + "</i>");
  50         writer.println("<td>" + comment() + "&nbsp;");
  51         writer.println("</tr>");
  52 
  53         writer.println("<tr>");
  54         writer.println("<th colspan=\"3\" scope=\"rowgroup\">"
  55                 + indentElement(structIndent, "Repeated <i>" + name() + "</i> times:"));
  56         writer.println("</tr>");
  57 
  58         ++structIndent;
  59         member.document(writer);
  60         --structIndent;
  61     }
  62 
  63     String docType() {
  64         return "-BOGUS-"; // should never call this
  65     }
  66 
  67     String javaType() {
  68         return member.javaType() + "[]";
  69     }
  70 
  71     public void genJavaWrite(PrintWriter writer, int depth,
  72                              String writeLabel) {
  73         genJavaDebugWrite(writer, depth, writeLabel, "\"\"");
  74         indent(writer, depth);
  75         writer.println("ps.writeInt(" + writeLabel + ".length);");
  76         indent(writer, depth);
  77         writer.println("for (int i = 0; i < " + writeLabel + ".length; i++) {;");
  78         ((TypeNode)member).genJavaWrite(writer, depth+1, writeLabel + "[i]");
  79         indent(writer, depth);
  80         writer.println("}");
  81     }
  82 
  83     String javaRead() {
  84         error("Internal - Should not call RepeatNode.javaRead()");
  85         return "";
  86     }
  87 
  88     public void genJavaRead(PrintWriter writer, int depth,
  89                             String readLabel) {
  90         genJavaDebugRead(writer, depth, readLabel, "\"\"");
  91         String cntLbl = readLabel + "Count";
  92         indent(writer, depth);
  93         writer.println("int " + cntLbl + " = ps.readInt();");
  94         indent(writer, depth);
  95         writer.println(readLabel + " = new " + member.javaType() +
  96                        "[" + cntLbl + "];");
  97         indent(writer, depth);
  98         writer.println("for (int i = 0; i < " + cntLbl + "; i++) {;");
  99         member.genJavaRead(writer, depth+1, readLabel + "[i]");
 100         indent(writer, depth);
 101         writer.println("}");
 102     }
 103 }