/*
* Copyright (c) 2007 BUSINESS OBJECTS SOFTWARE LIMITED
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of Business Objects nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
*/
/*
* RTRecordToList.java
* Created: Sept 28, 2006
* By: Magnus Byne
*/
package org.openquark.cal.internal.runtime.lecc.functions;
import java.util.ArrayList;
import java.util.List;
import org.openquark.cal.internal.runtime.lecc.RTData;
import org.openquark.cal.internal.runtime.lecc.RTExecutionContext;
import org.openquark.cal.internal.runtime.lecc.RTRecordValue;
import org.openquark.cal.internal.runtime.lecc.RTResultFunction;
import org.openquark.cal.internal.runtime.lecc.RTSupercombinator;
import org.openquark.cal.internal.runtime.lecc.RTValue;
import org.openquark.cal.runtime.CALExecutorException;
/**
* Implements the built-in primitive function: buildList.
* This is used to build a homogeneous list
* using a record dictionary and a tuple of records and lists.
*
* @author Magnus Byne
*/
public final class RTBuildListPrimitive extends RTSupercombinator {
public static final RTBuildListPrimitive $instance = new RTBuildListPrimitive();
private RTBuildListPrimitive() {
// Declared private to limit instantiation.
}
public static final RTBuildListPrimitive make(RTExecutionContext $ec) {
return $instance;
}
@Override
public final int getArity() {
return 3;
}
@Override
public final RTValue f(final RTResultFunction rootNode, final RTExecutionContext $ec) throws CALExecutorException {
// Arguments
final RTValue record = rootNode.getArgValue();
RTValue currentRootNode;
final RTValue index = (currentRootNode = rootNode.prevArg()).getArgValue();
final RTValue recordDictionary = (currentRootNode = currentRootNode.prevArg()).getArgValue();
return f3L(recordDictionary, index, record, $ec);
}
@Override
public final RTValue f3L(RTValue recordDictionary, RTValue index, RTValue record, RTExecutionContext $ec) throws CALExecutorException {
return f3S(recordDictionary.evaluate($ec), index.evaluate($ec).getIntValue(), record.evaluate($ec), $ec);
}
public final RTValue f3S(RTValue recordDictionary, int index, RTValue record, RTExecutionContext $ec) throws CALExecutorException {
// Since all branches of the function code return a HNF we can simply box the result of the unboxed return method.
return RTData.CAL_Opaque.make(fUnboxed3S (recordDictionary, index, record, $ec));
}
public final List<Object> fUnboxed3S(RTValue recordDictionary, int indexValue, RTValue record, RTExecutionContext $ec) throws CALExecutorException {
$ec.incrementNMethodCalls();
/*
* Loops through all fields in the record dictionary and invokes the
* dictionary function and adds them to the result list
*/
RTRecordValue recordDict = (RTRecordValue)recordDictionary;
RTRecordValue recordValue = (RTRecordValue)record;
RTValue index = RTData.CAL_Int.make(indexValue);
int numOrdinalFields = recordDict.getNOrdinalFields();
int numTextualFields = recordDict.getNTextualFields();
int nParams = recordValue.getNOrdinalFields() + recordValue.getNTextualFields();
//create the list of parameter sources
ArrayList<RecordParamHelper> paramSources = new ArrayList<RecordParamHelper>(nParams);
for(int i=0; i<nParams; i++) {
paramSources.add(RecordParamHelper.create(recordValue.getNthValue(i), $ec));
}
List<Object> res= new ArrayList<Object>(numOrdinalFields + numTextualFields);
for (int i = 0, nFields = numTextualFields + numOrdinalFields; i < nFields; ++i) {
RTValue fieldDict = recordDict.getNthValue(i);
RTValue elem;
if (indexValue == -1)
elem = fieldDict;
else
elem = fieldDict.apply(index);
//fill arguments using the param sources.
for(RecordParamHelper param : paramSources) {
elem = elem.apply(param.getNext($ec));
}
res.add(elem);
}
return res;
}
/**
* {@inheritDoc}
*/
@Override
public final String getModuleName() {
return "Cal.Core.Record";
}
/**
* {@inheritDoc}
*/
@Override
public final String getUnqualifiedName() {
return "buildListPrimitive";
}
/**
* {@inheritDoc}
*/
@Override
public final String getQualifiedName() {
return "Cal.Core.Record.buildListPrimitive";
}
}