| /* |
| * @(#)$Id$ |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001-2003 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 org.apache.bcel.generic.ALOAD; |
| import org.apache.bcel.generic.ASTORE; |
| import org.apache.bcel.generic.ConstantPoolGen; |
| import org.apache.bcel.generic.GETFIELD; |
| import org.apache.bcel.generic.INVOKEINTERFACE; |
| import org.apache.bcel.generic.INVOKESTATIC; |
| import org.apache.bcel.generic.INVOKEVIRTUAL; |
| import org.apache.bcel.generic.InstructionList; |
| import org.apache.bcel.generic.LocalVariableGen; |
| import org.apache.xalan.xsltc.compiler.util.ClassGenerator; |
| import org.apache.xalan.xsltc.compiler.util.ErrorMsg; |
| import org.apache.xalan.xsltc.compiler.util.MethodGenerator; |
| import org.apache.xalan.xsltc.compiler.util.Type; |
| import org.apache.xalan.xsltc.compiler.util.TypeCheckError; |
| import org.apache.xalan.xsltc.compiler.util.Util; |
| import org.apache.xml.utils.XMLChar; |
| |
| final class ProcessingInstruction extends Instruction { |
| |
| private AttributeValue _name; // name treated as AVT (7.1.3) |
| private boolean _isLiteral = false; // specified name is not AVT |
| |
| public void parseContents(Parser parser) { |
| final String name = getAttribute("name"); |
| |
| if (name.length() > 0) { |
| _isLiteral = Util.isLiteral(name); |
| if (_isLiteral) { |
| if (!XMLChar.isValidNCName(name)) { |
| ErrorMsg err = new ErrorMsg(ErrorMsg.INVALID_NCNAME_ERR, name, this); |
| parser.reportError(Constants.ERROR, err); |
| } |
| } |
| _name = AttributeValue.create(this, name, parser); |
| } |
| else |
| reportError(this, parser, ErrorMsg.REQUIRED_ATTR_ERR, "name"); |
| |
| if (name.equals("xml")) { |
| reportError(this, parser, ErrorMsg.ILLEGAL_PI_ERR, "xml"); |
| } |
| parseChildren(parser); |
| } |
| |
| public Type typeCheck(SymbolTable stable) throws TypeCheckError { |
| _name.typeCheck(stable); |
| typeCheckContents(stable); |
| return Type.Void; |
| } |
| |
| public void translate(ClassGenerator classGen, MethodGenerator methodGen) { |
| final ConstantPoolGen cpg = classGen.getConstantPool(); |
| final InstructionList il = methodGen.getInstructionList(); |
| |
| if (!_isLiteral) { |
| // if the ncname is an AVT, then the ncname has to be checked at runtime if it is a valid ncname |
| LocalVariableGen nameValue = methodGen.addLocalVariable2("nameValue", |
| Util.getJCRefType(STRING_SIG), |
| il.getEnd()); |
| |
| // store the name into a variable first so _name.translate only needs to be called once |
| _name.translate(classGen, methodGen); |
| il.append(new ASTORE(nameValue.getIndex())); |
| il.append(new ALOAD(nameValue.getIndex())); |
| |
| // call checkNCName if the name is an AVT |
| final int check = cpg.addMethodref(BASIS_LIBRARY_CLASS, "checkNCName", |
| "(" |
| +STRING_SIG |
| +")V"); |
| il.append(new INVOKESTATIC(check)); |
| |
| // Save the current handler base on the stack |
| il.append(methodGen.loadHandler()); |
| il.append(DUP); // first arg to "attributes" call |
| |
| // load name value again |
| il.append(new ALOAD(nameValue.getIndex())); |
| } else { |
| // Save the current handler base on the stack |
| il.append(methodGen.loadHandler()); |
| il.append(DUP); // first arg to "attributes" call |
| |
| // Push attribute name |
| _name.translate(classGen, methodGen);// 2nd arg |
| |
| } |
| |
| il.append(classGen.loadTranslet()); |
| il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS, |
| "stringValueHandler", |
| STRING_VALUE_HANDLER_SIG))); |
| il.append(DUP); |
| il.append(methodGen.storeHandler()); |
| |
| // translate contents with substituted handler |
| translateContents(classGen, methodGen); |
| |
| // get String out of the handler |
| il.append(new INVOKEVIRTUAL(cpg.addMethodref(STRING_VALUE_HANDLER, |
| "getValueOfPI", |
| "()" + STRING_SIG))); |
| // call "processingInstruction" |
| final int processingInstruction = |
| cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE, |
| "processingInstruction", |
| "(" + STRING_SIG + STRING_SIG + ")V"); |
| il.append(new INVOKEINTERFACE(processingInstruction, 3)); |
| // Restore old handler base from stack |
| il.append(methodGen.storeHandler()); |
| } |
| } |
