/*
* #%~
* 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.assistant.definition;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Vector;
import org.overture.ast.assistant.IAstAssistant;
import org.overture.ast.definitions.AExplicitFunctionDefinition;
import org.overture.ast.definitions.AImplicitOperationDefinition;
import org.overture.ast.definitions.AStateDefinition;
import org.overture.ast.expressions.PExp;
import org.overture.ast.factory.AstFactory;
import org.overture.ast.patterns.APatternListTypePair;
import org.overture.ast.patterns.PPattern;
import org.overture.ast.typechecker.NameScope;
import org.overture.ast.types.AOperationType;
import org.overture.typechecker.Environment;
import org.overture.typechecker.assistant.ITypeCheckerAssistantFactory;
public class AImplicitOperationDefinitionAssistantTC implements IAstAssistant
{
protected ITypeCheckerAssistantFactory af;
public AImplicitOperationDefinitionAssistantTC(
ITypeCheckerAssistantFactory af)
{
this.af = af;
}
@SuppressWarnings("unchecked")
public AExplicitFunctionDefinition getPostDefinition(
AImplicitOperationDefinition d, Environment base)
{
List<List<PPattern>> parameters = new Vector<List<PPattern>>();
List<PPattern> plist = new Vector<PPattern>();
for (APatternListTypePair pl : (LinkedList<APatternListTypePair>) d.getParameterPatterns())
{
plist.addAll((Collection<PPattern>) pl.getPatterns().clone());
}
if (d.getResult() != null)
{
plist.add(d.getResult().getPattern().clone());
}
AStateDefinition state = d.getState();
if (state != null)
{
plist.add(AstFactory.newAIdentifierPattern(state.getName().getOldName()));
plist.add(AstFactory.newAIdentifierPattern(state.getName().clone()));
} else if (base.isVDMPP())
{
plist.add(AstFactory.newAIdentifierPattern(d.getName().getSelfName().getOldName()));
if (!af.createPAccessSpecifierAssistant().isStatic(d.getAccess()))
{
plist.add(AstFactory.newAIdentifierPattern(d.getName().getSelfName()));
}
}
parameters.add(plist);
PExp postop = AstFactory.newAPostOpExp(d.getName().clone(), d.getPrecondition(), d.getPostcondition(), d.getErrors(), d.getState());
AExplicitFunctionDefinition def = AstFactory.newAExplicitFunctionDefinition(d.getName().getPostName(d.getPostcondition().getLocation()), NameScope.GLOBAL, null, af.createAOperationTypeAssistant().getPostType((AOperationType) d.getType(), state, d.getClassDefinition(), af.createPAccessSpecifierAssistant().isStatic(d.getAccess())), parameters, postop, null, null, false, null);
// Operation postcondition functions are effectively not static as
// their expression can directly refer to instance variables, even
// though at runtime these are passed via a "self" parameter.
def.setAccess(af.createPAccessSpecifierAssistant().getStatic(d, false));
def.setClassDefinition(d.getClassDefinition());
return def;
}
@SuppressWarnings("unchecked")
public AExplicitFunctionDefinition getPreDefinition(
AImplicitOperationDefinition d, Environment base)
{
List<List<PPattern>> parameters = new Vector<List<PPattern>>();
List<PPattern> plist = new Vector<PPattern>();
for (APatternListTypePair pl : (LinkedList<APatternListTypePair>) d.getParameterPatterns())
{
plist.addAll((Collection<PPattern>) pl.getPatterns().clone());
}
AStateDefinition state = d.getState();
if (state != null)
{
plist.add(AstFactory.newAIdentifierPattern(state.getName().clone()));
} else if (base.isVDMPP()
&& !af.createPAccessSpecifierAssistant().isStatic(d.getAccess()))
{
plist.add(AstFactory.newAIdentifierPattern(d.getName().getSelfName()));
}
parameters.add(plist);
PExp preop = AstFactory.newAPreOpExp(d.getName().clone(), d.getPrecondition(), d.getErrors(), d.getState());
AExplicitFunctionDefinition def = AstFactory.newAExplicitFunctionDefinition(d.getName().getPreName(d.getPrecondition().getLocation()), NameScope.GLOBAL, null, af.createAOperationTypeAssistant().getPreType((AOperationType) d.getType(), state, d.getClassDefinition(), af.createPAccessSpecifierAssistant().isStatic(d.getAccess())), parameters, preop, null, null, false, null);
// Operation precondition functions are effectively not static as
// their expression can directly refer to instance variables, even
// though at runtime these are passed via a "self" parameter.
def.setAccess(af.createPAccessSpecifierAssistant().getStatic(d, false));
def.setClassDefinition(d.getClassDefinition());
return def;
}
public List<PPattern> getParamPatternList(
AImplicitOperationDefinition definition)
{
List<PPattern> plist = new ArrayList<PPattern>();
for (APatternListTypePair pl : definition.getParameterPatterns())
{
plist.addAll(pl.getPatterns());
}
return plist;
}
public List<List<PPattern>> getListParamPatternList(
AImplicitOperationDefinition func)
{
List<List<PPattern>> parameters = new ArrayList<List<PPattern>>();
List<PPattern> plist = new ArrayList<PPattern>();
for (APatternListTypePair pl : func.getParameterPatterns())
{
plist.addAll(pl.getPatterns());
}
parameters.add(plist);
return parameters;
}
}