| /* |
| * @(#)$Id$ |
| * |
| * 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 Morten Jorgensen |
| * |
| */ |
| |
| package org.apache.xalan.xsltc.compiler; |
| |
| import java.util.Hashtable; |
| import java.util.Enumeration; |
| import java.util.Vector; |
| |
| 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 UnsupportedElement extends SyntaxTreeNode { |
| |
| private Fallback _fallback = null; |
| private String _message = null; |
| |
| /** |
| * Basic consutrcor - stores element uri/prefix/localname |
| */ |
| public UnsupportedElement(String uri, String prefix, String local) { |
| super(uri, prefix, local); |
| } |
| |
| /** |
| * There are different categories of unsupported elements (believe it |
| * or not): there are elements within the XSLT namespace (these would |
| * be elements that are not yet implemented), there are extensions of |
| * other XSLT processors and there are unrecognised extension elements |
| * of this XSLT processor. The error message passed to this method |
| * should describe the unsupported element itself and what category |
| * the element belongs in. |
| */ |
| public void setErrorMessage(String message) { |
| _message = message; |
| } |
| |
| /** |
| * Displays the contents of this element |
| */ |
| public void display(int indent) { |
| indent(indent); |
| Util.println("Unsupported element = " + _qname.getNamespace() + |
| ":" + _qname.getLocalPart()); |
| displayContents(indent + IndentIncrement); |
| } |
| |
| |
| /** |
| * Scan all descendants and find the first xsl:fallback element (if any) |
| */ |
| private SyntaxTreeNode findFallback(SyntaxTreeNode root) { |
| |
| // First check if this element exists at all |
| if (root == null) return null; |
| |
| // Then check if the element is an xsl:fallback element |
| if (root instanceof Fallback) return((Fallback)root); |
| |
| // Then traverse all child elements |
| Vector children = root.getContents(); |
| if (children != null) { |
| final int count = children.size(); |
| for (int i = 0; i < count; i++) { |
| SyntaxTreeNode child = (SyntaxTreeNode)children.elementAt(i); |
| SyntaxTreeNode node = findFallback(child); |
| if (node != null) return node; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Find any fallback in the descendant nodes; then activate & parse it |
| */ |
| public void parseContents(Parser parser) { |
| _fallback = (Fallback)findFallback(this); |
| if (_fallback != null) { |
| _fallback.activate(); |
| _fallback.parseContents(parser); |
| } |
| } |
| |
| /** |
| * Run type check on the fallback element (if any). |
| */ |
| public Type typeCheck(SymbolTable stable) throws TypeCheckError { |
| if (_fallback == null) { |
| throw new TypeCheckError(new ErrorMsg(_message)); |
| } |
| return(_fallback.typeCheck(stable)); |
| } |
| |
| /** |
| * Translate the fallback element (if any). The stylesheet should never |
| * be compiled if an unsupported element does not have a fallback element, |
| * so this method should never be called unless _fallback != null |
| */ |
| public void translate(ClassGenerator classGen, MethodGenerator methodGen) { |
| if (_fallback != null) _fallback.translate(classGen, methodGen); |
| } |
| } |