/*
* @(#)$Id$
*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2001, Sun
* Microsystems., http://www.sun.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
*
*/
package org.apache.xalan.xsltc.compiler;
import java.util.Vector;
import java.util.Enumeration;
import javax.xml.parsers.*;
import org.xml.sax.*;
import org.apache.xalan.xsltc.compiler.util.Type;
import org.apache.xalan.xsltc.compiler.util.ReferenceType;
import de.fub.bytecode.generic.*;
import org.apache.xalan.xsltc.compiler.util.*;
final class ApplyImports extends Instruction {
private Expression _select;
private QName _modeName;
private String _functionName;
public void display(int indent) {
indent(indent);
Util.println("ApplyTemplates");
indent(indent + IndentIncrement);
Util.println("select " + _select.toString());
if (_modeName != null) {
indent(indent + IndentIncrement);
Util.println("mode " + _modeName);
}
}
public boolean hasWithParams() {
return hasContents();
}
public void parseContents(Parser parser) {
final String select = getAttribute("select");
final String mode = getAttribute("mode");
if (select.length() > 0) {
_select = parser.parseExpression(this, "select", null);
}
if (mode.length() > 0) {
_modeName = parser.getQName(mode);
}
// instantiate Mode if needed, cache (apply temp) function name
_functionName =
parser.getTopLevelStylesheet().getMode(_modeName).functionName();
parseChildren(parser); // with-params
}
public Type typeCheck(SymbolTable stable) throws TypeCheckError {
if (_select != null) {
Type tselect = _select.typeCheck(stable);
if (tselect instanceof NodeType ||
tselect instanceof ReferenceType) {
_select = new CastExpr(_select, Type.NodeSet);
tselect = Type.NodeSet;
}
if (tselect instanceof NodeSetType) {
typeCheckContents(stable); // with-params
return Type.Void;
}
throw new TypeCheckError(this);
}
else {
typeCheckContents(stable); // with-params
return Type.Void;
}
}
/**
* Translate call-template. A parameter frame is pushed only if
* some template in the stylesheet uses parameters.
*/
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
final Stylesheet stylesheet = classGen.getStylesheet();
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
final int current = methodGen.getLocalIndex("current");
// check if sorting nodes is required
final Vector sortObjects = new Vector();
final Enumeration children = elements();
while (children.hasMoreElements()) {
final Object child = children.nextElement();
if (child instanceof Sort) {
sortObjects.addElement(child);
}
}
// Push a new parameter frame
if (stylesheet.hasLocalParams()) {
il.append(classGen.loadTranslet());
final int pushFrame = cpg.addMethodref(TRANSLET_CLASS,
PUSH_PARAM_FRAME,
PUSH_PARAM_FRAME_SIG);
il.append(new INVOKEVIRTUAL(pushFrame));
// translate with-params
translateContents(classGen, methodGen);
}
// push arguments for final call to applyTemplates
il.append(classGen.loadTranslet());
il.append(methodGen.loadDOM());
// compute node iterator for applyTemplates
if (sortObjects.size() > 0) {
Sort.translateSortIterator(classGen, methodGen,
_select, sortObjects);
}
else {
if (_select == null) {
Mode.compileGetChildren(classGen, methodGen, current);
}
else {
_select.translate(classGen, methodGen);
}
}
if (_select != null) {
_select.startResetIterator(classGen, methodGen);
}
//!!! need to instantiate all needed modes
final String className = classGen.getStylesheet().getClassName();
il.append(methodGen.loadHandler());
final String applyTemplatesSig = classGen.getApplyTemplatesSig();
final int applyTemplates = cpg.addMethodref(className,
_functionName,
applyTemplatesSig);
il.append(new INVOKEVIRTUAL(applyTemplates));
// Pop parameter frame
if (stylesheet.hasLocalParams()) {
il.append(classGen.loadTranslet());
final int popFrame = cpg.addMethodref(TRANSLET_CLASS,
POP_PARAM_FRAME,
POP_PARAM_FRAME_SIG);
il.append(new INVOKEVIRTUAL(popFrame));
}
}
}