| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 2001-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /* |
| * $Id: StringCall.java,v 1.2.4.1 2005/09/05 09:08:15 pvedula Exp $ |
| */ |
| |
| package com.sun.org.apache.xalan.internal.xsltc.compiler; |
| |
| import java.util.Vector; |
| |
| import com.sun.org.apache.bcel.internal.generic.InstructionList; |
| import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator; |
| import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg; |
| import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator; |
| import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type; |
| import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError; |
| |
| /** |
| * @author Jacek Ambroziak |
| * @author Santiago Pericas-Geertsen |
| */ |
| final class StringCall extends FunctionCall { |
| public StringCall(QName fname, Vector arguments) { |
| super(fname, arguments); |
| } |
| |
| public Type typeCheck(SymbolTable stable) throws TypeCheckError { |
| final int argc = argumentCount(); |
| if (argc > 1) { |
| ErrorMsg err = new ErrorMsg(ErrorMsg.ILLEGAL_ARG_ERR, this); |
| throw new TypeCheckError(err); |
| } |
| |
| if (argc > 0) { |
| argument().typeCheck(stable); |
| } |
| return _type = Type.String; |
| } |
| |
| public void translate(ClassGenerator classGen, MethodGenerator methodGen) { |
| final InstructionList il = methodGen.getInstructionList(); |
| Type targ; |
| |
| if (argumentCount() == 0) { |
| il.append(methodGen.loadContextNode()); |
| targ = Type.Node; |
| } |
| else { |
| final Expression arg = argument(); |
| arg.translate(classGen, methodGen); |
| arg.startIterator(classGen, methodGen); |
| targ = arg.getType(); |
| } |
| |
| if (!targ.identicalTo(Type.String)) { |
| targ.translateTo(classGen, methodGen, Type.String); |
| } |
| } |
| } |