OoasTools

/**

  *

  *                      OOAS Compiler

  *

  *       Copyright 2015, AIT Austrian Institute of Technology.

  * This code is based on the C# Version of the OOAS Compiler, which is

  * copyright 2015 by the Institute of Software Technology, Graz University

  * of Technology with portions copyright by the AIT Austrian Institute of

  * Technology. All rights reserved.

  *

  * SEE THE "LICENSE" FILE FOR THE TERMS UNDER WHICH THIS FILE IS PROVIDED.

  *

  * If you modify the file please update the list of contributors below to in-

  * clude your name. Please also stick to the coding convention of using TABs

  * to do the basic (block-level) indentation and spaces for anything after

  * that. (Enable the display of special chars and it should be pretty obvious

  * what this means.) Also, remove all trailing whitespace.

  *

  * Contributors:

  *               Willibald Krenn (AIT)

  *               Stephan Zimmerer (AIT)

  *               Markus Demetz (AIT)

  *               Christoph Czurda (AIT)

  *

  */

package org.momut.ooas.ast.identifiers;

import org.antlr.runtime.Token;

import org.momut.ooas.ast.IScope;

import org.momut.ooas.ast.types.UlyssesType;

import org.momut.ooas.parser.SymbolTable;

///////////////////////////////////////////////

///  Scope Identifiers

///

public abstract class Scope extends TypeIdentifier implements IScope

{

        protected SymbolTable m_symbolTable;

        public Scope(Token aToken,

                        UlyssesType aType,

                        IdentifierKind aKind,

                        IScope aDefiningScope)

        {

                super (aToken, aType, aKind, aDefiningScope);

                m_symbolTable = new SymbolTable();

        }

        public Scope(String aName,

                        UlyssesType aType,

                        IdentifierKind aKind,

                        IScope aDefiningScope)

        {

                super (aName, aType, aKind, aDefiningScope);

                m_symbolTable = new SymbolTable();

        }

        public Scope(Scope toCopy)

        {

                super (toCopy);

                m_symbolTable = toCopy.symbolTable();

        }

        public SymbolTable symbolTable() { return m_symbolTable; }

        @Override

        public IScope GetParentScope()

        {

                return m_definingScope;

        }

        @Override

        public void SetParentScope(IScope parentScope)

        {

                m_definingScope = parentScope;

        }

        public /*virtual*/ void AddIdentifier(Identifier anIdentifier, Object tag)

        {

                m_symbolTable.AddIdentifier(anIdentifier);

        }

        public Identifier ResolveIdentifier(String aName)

        {

                if (m_symbolTable.Defined(aName))

                        return m_symbolTable.Get(aName);

                else

                        return null;

        }

}