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/*
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* Copyright 1998-1999 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package build.tools.jdwpgen;
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import java.util.*;
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import java.io.*;
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class SelectNode extends AbstractGroupNode implements TypeNode {
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AbstractSimpleTypeNode typeNode;
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void prune() {
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super.prune();
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Iterator it = components.iterator();
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if (it.hasNext()) {
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Node typeNode = (Node)it.next();
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if (typeNode instanceof ByteTypeNode ||
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typeNode instanceof IntTypeNode) {
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this.typeNode = (AbstractSimpleTypeNode)typeNode;
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it.remove();
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} else {
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error("Select must be based on 'int' or 'byte'");
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}
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} else {
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error("empty");
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}
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}
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void constrain(Context ctx) {
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super.constrain(ctx);
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if (components.size() < 2) {
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error("Select must have at least two options");
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}
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}
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void constrainComponent(Context ctx, Node node) {
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node.constrain(ctx);
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if (!(node instanceof AltNode)) {
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error("Select must consist of selector followed by Alt items");
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}
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}
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void document(PrintWriter writer) {
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typeNode.document(writer);
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super.document(writer);
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}
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String docType() {
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// should never call this
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error("Internal - called SelectNode.docType()");
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return null;
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}
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String commonBaseClass() {
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return name() + "Common";
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}
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private String commonVar() {
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return " a" + commonBaseClass();
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}
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void genJavaClassSpecifics(PrintWriter writer, int depth) {
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indent(writer, depth);
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writer.println("abstract static class " + commonBaseClass() + " {");
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if (context.isWritingCommand()) {
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indent(writer, depth+1);
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writer.println("abstract void write(PacketStream ps);");
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} else {
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indent(writer, depth+1);
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writer.println("abstract " + typeNode.javaParam() + "();");
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}
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indent(writer, depth);
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writer.println("}");
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typeNode.genJavaDeclaration(writer, depth);
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indent(writer, depth);
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writer.println(commonBaseClass() + commonVar() + ";");
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super.genJavaClassSpecifics(writer, depth);
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}
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void genJavaClassBodyComponents(PrintWriter writer, int depth) {
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// don't naively include alt components
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}
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void genJavaWritingClassBody(PrintWriter writer, int depth,
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String className) {
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writer.println();
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indent(writer, depth);
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writer.print(className + "(" + typeNode.javaParam() + ", ");
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writer.print(commonBaseClass() + commonVar());
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writer.println(") {");
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indent(writer, depth+1);
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writer.println("this." + typeNode.name() + " = " + typeNode.name() + ";");
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indent(writer, depth+1);
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writer.println("this." + commonVar() + " =" + commonVar() + ";");
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indent(writer, depth);
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writer.println("}");
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}
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void genJavaWrites(PrintWriter writer, int depth) {
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typeNode.genJavaWrite(writer, depth, typeNode.name());
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indent(writer, depth);
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writer.println(commonVar() + ".write(ps);");
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}
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void genJavaReads(PrintWriter writer, int depth) {
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typeNode.genJavaRead(writer, depth, typeNode.name());
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indent(writer, depth);
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writer.println("switch (" + typeNode.name() + ") {");
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for (Iterator it = components.iterator(); it.hasNext();) {
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AltNode alt = (AltNode)it.next();
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alt.genJavaReadsSelectCase(writer, depth+1, commonVar());
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}
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indent(writer, depth);
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writer.println("}");
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}
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public void genJavaDeclaration(PrintWriter writer, int depth) {
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typeNode.genJavaDeclaration(writer, depth);
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super.genJavaDeclaration(writer, depth);
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}
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public String javaParam() {
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return typeNode.javaParam() + ", " + name() + " a" + name();
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}
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}
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