/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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: ParameterRef.java 528589 2007-04-13 18:50:56Z zongaro $
*/
package org.apache.xalan.xsltc.compiler;
import org.apache.bcel.generic.CHECKCAST;
import org.apache.bcel.generic.ConstantPoolGen;
import org.apache.bcel.generic.GETFIELD;
import org.apache.bcel.generic.INVOKEINTERFACE;
import org.apache.bcel.generic.InstructionList;
import org.apache.xalan.xsltc.compiler.util.ClassGenerator;
import org.apache.xalan.xsltc.compiler.util.MethodGenerator;
import org.apache.xalan.xsltc.compiler.util.NodeSetType;
import org.apache.xalan.xsltc.runtime.BasisLibrary;
/**
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
* @author Morten Jorgensen
* @author Erwin Bolwidt <ejb@klomp.org>
*/
final class ParameterRef extends VariableRefBase {
/**
* Name of param being referenced.
*/
QName _name = null;
public ParameterRef(Param param) {
super(param);
_name = param._name;
}
public String toString() {
return "parameter-ref("+_variable.getName()+'/'+_variable.getType()+')';
}
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
/*
* To fix bug 24518 related to setting parameters of the form
* {namespaceuri}localName, which will get mapped to an instance
* variable in the class.
*/
final String name = BasisLibrary.mapQNameToJavaName (_name.toString());
final String signature = _type.toSignature();
if (_variable.isLocal()) {
if (classGen.isExternal()) {
Closure variableClosure = _closure;
while (variableClosure != null) {
if (variableClosure.inInnerClass()) break;
variableClosure = variableClosure.getParentClosure();
}
if (variableClosure != null) {
il.append(ALOAD_0);
il.append(new GETFIELD(
cpg.addFieldref(variableClosure.getInnerClassName(),
name, signature)));
}
else {
il.append(_variable.loadInstruction());
}
}
else {
il.append(_variable.loadInstruction());
}
}
else {
final String className = classGen.getClassName();
il.append(classGen.loadTranslet());
if (classGen.isExternal()) {
il.append(new CHECKCAST(cpg.addClass(className)));
}
il.append(new GETFIELD(cpg.addFieldref(className,name,signature)));
}
if (_variable.getType() instanceof NodeSetType) {
// The method cloneIterator() also does resetting
final int clone = cpg.addInterfaceMethodref(NODE_ITERATOR,
"cloneIterator",
"()" +
NODE_ITERATOR_SIG);
il.append(new INVOKEINTERFACE(clone, 1));
}
}
}