/*
* #%~
* The VDM Type Checker
* %%
* Copyright (C) 2008 - 2014 Overture
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #~%
*/
package org.overture.typechecker.utilities.type;
import org.overture.ast.analysis.AnalysisException;
import org.overture.ast.types.ANamedInvariantType;
import org.overture.ast.types.AOperationType;
import org.overture.ast.types.AUnionType;
import org.overture.ast.types.AUnknownType;
import org.overture.ast.types.PType;
import org.overture.ast.types.SInvariantType;
import org.overture.typechecker.assistant.ITypeCheckerAssistantFactory;
/**
* Used to determine if a type is a operation type
*
* @author kel
*/
public class OperationBasisChecker extends TypeUnwrapper<Boolean>
{
protected ITypeCheckerAssistantFactory af;
public OperationBasisChecker(ITypeCheckerAssistantFactory af)
{
this.af = af;
}
@Override
public Boolean defaultSInvariantType(SInvariantType type)
throws AnalysisException
{
if (type instanceof ANamedInvariantType)
{
if (type.getOpaque())
{
return false;
}
return ((ANamedInvariantType) type).getType().apply(THIS);// PTypeAssistantTC.isOperation(type.getType());
} else
{
return false;
}
}
@Override
public Boolean caseAOperationType(AOperationType node)
throws AnalysisException
{
return true;
}
@Override
public Boolean caseAUnionType(AUnionType type) throws AnalysisException
{
// return af.createAUnionTypeAssistant().getOperation(type) != null;
// if (!type.getOpDone())
// {
// type.setOpDone(true);
// type.setOpType(PTypeAssistantTC.getOperation(AstFactory.newAUnknownType(type.getLocation())));
//
// PTypeSet result = new PTypeSet();
// Map<Integer, PTypeSet> params = new HashMap<Integer, PTypeSet>();
// List<PDefinition> defs = new Vector<PDefinition>();
//
// for (PType t : type.getTypes())
// {
// if (PTypeAssistantTC.isOperation(t))
// {
// if (t.getDefinitions() != null)
// {
// defs.addAll(t.getDefinitions());
// }
// AOperationType op = PTypeAssistantTC.getOperation(t);
// result.add(op.getResult());
//
// for (int p = 0; p < op.getParameters().size(); p++)
// {
// PType pt = op.getParameters().get(p);
// PTypeSet pset = params.get(p);
//
// if (pset == null)
// {
// pset = new PTypeSet(pt);
// params.put(p, pset);
// } else
// {
// pset.add(pt);
// }
// }
// }
// }
//
// if (!result.isEmpty())
// {
// PType rtype = result.getType(type.getLocation());
// PTypeList plist = new PTypeList();
//
// for (int i = 0; i < params.size(); i++)
// {
// PType pt = params.get(i).getType(type.getLocation());
// plist.add(pt);
// }
//
// type.setOpType(AstFactory.newAOperationType(type.getLocation(), plist, rtype));
// type.getOpType().setDefinitions(defs);
// } else
// {
// type.setOpType(null);
// }
// }
//
// return (AOperationType) type.getOpType() != null;
return type.apply(af.getOperationTypeFinder()) != null;
}
@Override
public Boolean caseAUnknownType(AUnknownType type) throws AnalysisException
{
return true;
}
@Override
public Boolean defaultPType(PType type) throws AnalysisException
{
return false;
}
}