morten 01/10/30 00:23:05 Added: java/src/org/apache/xalan/xsltc/compiler UnresolvedRef.java Log: Missing file from last putback. PR: n/a Obtained from: n/a Submitted by: [EMAIL PROTECTED] Reviewed by: [EMAIL PROTECTED] Revision Changes Path 1.1 xml-xalan/java/src/org/apache/xalan/xsltc/compiler/UnresolvedRef.java Index: UnresolvedRef.java =================================================================== /* * @(#)$Id: UnresolvedRef.java,v 1.1 2001/10/30 08:23:05 morten Exp $ * * 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 [EMAIL PROTECTED] * * 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 org.apache.xalan.xsltc.compiler.util.Type; import de.fub.bytecode.generic.*; import org.apache.xalan.xsltc.compiler.util.*; final class UnresolvedRef extends VariableRefBase { private QName _variableName = null; private VariableRefBase _ref = null; private VariableBase _var = null; private Stylesheet _sheet = null; public UnresolvedRef(QName name) { super(); _variableName = name; _sheet = getStylesheet(); } public QName getName() { return(_variableName); } private ErrorMsg reportError() { ErrorMsg err = new ErrorMsg(ErrorMsg.VARIABLE_UNDEF_ERR, _variableName, this); getParser().reportError(Constants.ERROR, err); return(err); } private VariableRefBase resolve(Parser parser, SymbolTable stable) { // At this point the AST is already built and we should be able to // find any declared global variable or parameter VariableBase ref = parser.lookupVariable(_variableName); if (ref == null) ref = (VariableBase)stable.lookupName(_variableName); if (ref == null) { reportError(); return null; } // Insert the referenced variable as something the parent variable // is dependent of (this class should only be used under variables) if ((_var = findParentVariable()) != null) _var.addDependency(ref); // Instanciate a true variable/parameter ref if (ref instanceof Variable) return(new VariableRef((Variable)ref)); else if (ref instanceof Param) return(new ParameterRef((Param)ref)); else return null; } public Type typeCheck(SymbolTable stable) throws TypeCheckError { if (_ref != null) { final String name = _variableName.toString(); ErrorMsg err = new ErrorMsg(ErrorMsg.CIRCULAR_VARIABLE_ERR, name, this); } if ((_ref = resolve(getParser(), stable)) != null) return(_ref.typeCheck(stable)); else throw new TypeCheckError(reportError()); } public void translate(ClassGenerator classGen, MethodGenerator methodGen) { if (_ref != null) _ref.translate(classGen, methodGen); else reportError(); } }
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