diff -r 1d7e6da6adc8 -r c348e06f0e82 jaxp/src/com/sun/org/apache/xalan/internal/xsltc/compiler/LastCall.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jaxp/src/com/sun/org/apache/xalan/internal/xsltc/compiler/LastCall.java Thu Apr 12 08:38:26 2012 -0700 @@ -0,0 +1,71 @@ +/* + * 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: LastCall.java,v 1.2.4.1 2005/09/01 15:55:34 pvedula Exp $ + */ + +package com.sun.org.apache.xalan.internal.xsltc.compiler; + +import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; +import com.sun.org.apache.bcel.internal.generic.ILOAD; +import com.sun.org.apache.bcel.internal.generic.INVOKEINTERFACE; +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.CompareGenerator; +import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator; +import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TestGenerator; + +/** + * @author Jacek Ambroziak + * @author Santiago Pericas-Geertsen + */ +final class LastCall extends FunctionCall { + + public LastCall(QName fname) { + super(fname); + } + + public boolean hasPositionCall() { + return true; + } + + public boolean hasLastCall() { + return true; + } + + public void translate(ClassGenerator classGen, MethodGenerator methodGen) { + final InstructionList il = methodGen.getInstructionList(); + + if (methodGen instanceof CompareGenerator) { + il.append(((CompareGenerator)methodGen).loadLastNode()); + } + else if (methodGen instanceof TestGenerator) { + il.append(new ILOAD(LAST_INDEX)); + } + else { + final ConstantPoolGen cpg = classGen.getConstantPool(); + final int getLast = cpg.addInterfaceMethodref(NODE_ITERATOR, + "getLast", + "()I"); + il.append(methodGen.loadIterator()); + il.append(new INVOKEINTERFACE(getLast, 1)); + } + } +}