/*
* ******************************************************************************
* 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.grammar.cocos;
import java.util.List;
import java.util.Optional;
import de.monticore.grammar.grammar._ast.ASTAbstractProd;
import de.monticore.grammar.grammar._ast.ASTRuleReference;
import de.monticore.grammar.grammar._cocos.GrammarASTAbstractProdCoCo;
import de.monticore.grammar.symboltable.MCProdSymbol;
import de.se_rwth.commons.logging.Log;
/**
* Checks that abstract nonterminals only extends abstract or normal nonterminals..
*
* @author KH
*/
public class AbstractNTNotExtendInterfaceOrExternalNTs implements GrammarASTAbstractProdCoCo {
public static final String ERROR_CODE = "0xA2107";
public static final String ERROR_MSG_FORMAT = " The abstract nonterminal %s must not extend the %s nonterminal %s. " +
"Abstract nonterminals may only extend abstract or normal nonterminals.";
@Override
public void check(ASTAbstractProd a) {
if (!a.getSuperRule().isEmpty()) {
List<ASTRuleReference> superRules = a.getSuperRule();
for(ASTRuleReference sr : superRules){
Optional<MCProdSymbol> ruleSymbol = a.getEnclosingScope().get().resolve(sr.getName(), MCProdSymbol.KIND);
if(ruleSymbol.isPresent()){
MCProdSymbol r = ruleSymbol.get();
boolean isInterface = r.isInterface();
boolean isExternal = r.isExternal();
if(isInterface || isExternal){
Log.error(String.format(ERROR_CODE + ERROR_MSG_FORMAT, a.getName(), isInterface? "interface": "external", r.getName()),
a.get_SourcePositionStart());
}
}
}
}
}
}