/*
* 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
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* RTEqualsRecord.java
* Created: Sept 28, 2006
* By: Magnus Byne
*/
package org.openquark.cal.internal.runtime.lecc.functions;
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: arbitraryRecordPrimitive ::
* Arbitrary r => GenParams -> (GenParams -> GenParams) -> {r}
*
* @author Magnus Byne
*/
public final class RTArbitraryRecordPrimitive extends RTSupercombinator {
/**
* the index of the Arbitrary.generateInstance class method. This is currently
* hard-coded. Changes to the type class would necessitate updating this
* value.
*/
private static final RTData.CAL_Int indexOfGenerateClassMethod = RTData.CAL_Int.make(2);
public static final RTArbitraryRecordPrimitive $instance = new RTArbitraryRecordPrimitive();
private RTArbitraryRecordPrimitive() {
// Declared private to limit instantiation.
}
public static final RTArbitraryRecordPrimitive make(RTExecutionContext $ec) {
return $instance;
}
@Override
public final int getArity() {
return 3;
}
@Override
public final RTValue f(final RTResultFunction rootNode, final RTExecutionContext $ec) throws CALExecutorException {
// Arguments
RTValue independent = rootNode.getArgValue();
RTValue currentRootNode;
RTValue genParams = (currentRootNode = rootNode.prevArg()).getArgValue();
RTValue recordDictionaryThunk = currentRootNode.prevArg().getArgValue();
rootNode.clearMembers();
return f3S(
RTValue.lastRef(recordDictionaryThunk.evaluate($ec), recordDictionaryThunk = null),
RTValue.lastRef(genParams.evaluate($ec), genParams = null),
RTValue.lastRef(independent.evaluate($ec), independent = null),
$ec);
}
@Override
public final RTValue f3L(RTValue recordDictionary, RTValue genParams, RTValue independent, RTExecutionContext $ec) throws CALExecutorException {
return f3S(
RTValue.lastRef(recordDictionary.evaluate($ec), recordDictionary = null),
RTValue.lastRef(genParams.evaluate($ec), genParams = null),
RTValue.lastRef(independent.evaluate($ec), independent = null),
$ec);
}
@Override
public final RTValue f3S(RTValue recordDictionary, RTValue genParams, RTValue independent, RTExecutionContext $ec) throws CALExecutorException {
$ec.incrementNMethodCalls();
/*
* Loops through all fields in the record dictionary and invokes the
* arbitrary class method to construct each record field
*/
RTRecordValue recordDict = (RTRecordValue)recordDictionary;
int numOrdinalFields = recordDict.getNOrdinalFields();
int numTextualFields = recordDict.getNTextualFields();
RTValue ordinalValues[] = (numOrdinalFields > 0) ? new RTValue[numOrdinalFields] : null;
RTValue textualValues[] = (numTextualFields > 0) ? new RTValue[numTextualFields] : null;
for (int i = 0, nFields = numTextualFields + numOrdinalFields; i < nFields; ++i) {
// update the genParams so that each field has an independent generator
genParams = independent.apply(RTData.CAL_Int.make(i), genParams);
RTValue fieldDict = recordDict.getNthValue(i);
//generate an arbitrary instance of the field
RTValue v = fieldDict.apply(indexOfGenerateClassMethod, genParams).evaluate($ec);
if (i < recordDict.getNOrdinalFields()) {
ordinalValues[i] = v;
} else {
textualValues[i - numOrdinalFields] = v;
}
}
return recordDict.makeFromValues(ordinalValues, textualValues);
}
/**
* {@inheritDoc}
*/
@Override
public final String getModuleName() {
//JUnit tested to equal its binding file value in RuntimeStringConstantsTest.
return "Cal.Utilities.QuickCheck";
}
/**
* {@inheritDoc}
*/
@Override
public final String getUnqualifiedName() {
//JUnit tested to equal its binding file value in RuntimeStringConstantsTest.
return "arbitraryRecordPrimitive";
}
/**
* {@inheritDoc}
*/
@Override
public final String getQualifiedName() {
//JUnit tested to equal its binding file value in RuntimeStringConstantsTest.
return "Cal.Utilities.QuickCheck.arbitraryRecordPrimitive";
}
}