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 * Licensed to the Apache Software Foundation (ASF) under one or more
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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, Santiago Pericas-Geertsen
/** * @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)); } } }