/*
* 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.
*/
/*
* RTListToRecord.java
* Created: Oct 2, 2006
* By: Magnus Byne
*/
package org.openquark.cal.internal.runtime.lecc.functions;
import java.util.ArrayList;
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: buildRecord.
* This is used to build a record
* using a record dictionary and a tuple of records and lists.
*
* @author Magnus Byne
*/
public final class RTBuildRecordPrimitive extends RTSupercombinator {
public static final RTBuildRecordPrimitive $instance = new RTBuildRecordPrimitive();
private RTBuildRecordPrimitive() {
// Declared private to limit instantiation.
}
public static final RTBuildRecordPrimitive 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($ec), record.evaluate($ec), $ec);
}
public final RTValue f3S(RTValue recordDictionary, int index, RTValue args, RTExecutionContext $ec) throws CALExecutorException {
$ec.incrementNMethodCalls();
/*
* Loops through all fields in the record dictionary and invokes the
* class method to construct each record field
*/
RTRecordValue recordDict = (RTRecordValue)recordDictionary;
RTRecordValue recordValue = (RTRecordValue) args;
RTValue indexValue = RTData.CAL_Int.make(index);
int numOrdinalFields = recordDict.getNOrdinalFields();
int numTextualFields = recordDict.getNTextualFields();
RTValue ordinalValues[] = (numOrdinalFields > 0) ? new RTValue[numOrdinalFields] : null;
RTValue textualValues[] = (numTextualFields > 0) ? new RTValue[numTextualFields] : null;
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), $ec));
}
for (int i = 0, nFields = numTextualFields + numOrdinalFields; i < nFields; ++i) {
RTValue fieldDict = recordDict.getNthValue(i);
RTValue elem;
RTValue f;
if (index == -1)
f = fieldDict;
else
f = fieldDict.apply(indexValue);
//fill f's arguments using the param sources.
for(RecordParamHelper param : paramSources) {
f = f.apply(param.getNext($ec));
}
elem = f.evaluate($ec);
if (i < recordDict.getNOrdinalFields()) {
ordinalValues[i] = elem;
} else {
textualValues[i - numOrdinalFields] = elem;
}
}
return recordDict.makeFromValues(ordinalValues, textualValues);
}
/**
* {@inheritDoc}
*/
@Override
public final String getModuleName() {
return "Cal.Core.Record";
}
/**
* {@inheritDoc}
*/
@Override
public final String getUnqualifiedName() {
return "buildRecordPrimitive";
}
/**
* {@inheritDoc}
*/
@Override
public final String getQualifiedName() {
return "Cal.Core.Record.buildRecordPrimitive";
}
}