/*
* ******************************************************************************
* MontiCore Language Workbench
* Copyright (c) 2015, MontiCore, All rights reserved.
*
* This project is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this project. If not, see <http://www.gnu.org/licenses/>.
* ******************************************************************************
*/
package de.monticore.symboltable.visibility;
import de.monticore.symboltable.Scope;
import de.monticore.symboltable.Scopes;
import de.monticore.symboltable.Symbol;
import de.monticore.symboltable.SymbolPredicate;
import de.se_rwth.commons.logging.Log;
/**
* @author Pedram Mir Seyed Nazari
*
*/
public class ShadowsSymbol implements SymbolPredicate {
private final Symbol shadowingSymbol;
public ShadowsSymbol(Symbol shadowingSymbol) {
this.shadowingSymbol = Log.errorIfNull(shadowingSymbol);
}
@Override
public boolean test(Symbol symbol) {
Log.errorIfNull(symbol);
final Scope shadowingScope = shadowingSymbol.getEnclosingScope();
final Scope shadowedScope = symbol.getEnclosingScope();
if (shadowingScope == shadowedScope) {
// Something to do here?
}
else if (Scopes.getFirstShadowingScope(shadowingScope).isPresent()) {
final Scope firstShadowingScope = Scopes.getFirstShadowingScope(shadowingScope).get();
if (Scopes.isDescendant(firstShadowingScope, shadowedScope)) {
return shadowingSymbol.isKindOf(symbol.getKind()) && shadowingSymbol.getName().equals(symbol.getName());
}
}
return false;
}
}