/**
  *
  *                      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.expressions;

import org.momut.ooas.ast.IScope;
import org.momut.ooas.ast.identifiers.Identifier;
import org.momut.ooas.parser.SymbolTable;

///////////////////////////////////////////////
///  Quantifier
///
public abstract class Quantifier extends UnaryOperator implements IScope
{
	private final SymbolTable m_symbols;
	private IScope m_parentScope;

	public SymbolTable symbols() { return m_symbols; }


	public Quantifier(ExpressionKind aKind, Expression child, int line, int pos)
	{
		super (aKind, child, line, pos);
		m_symbols = new SymbolTable();
	}

	public Quantifier(Quantifier toCopy)
	{
		super (toCopy);
		m_symbols = new SymbolTable(toCopy.m_symbols);
		m_parentScope = toCopy.m_parentScope;
	}


	@Override
	public Identifier ResolveIdentifier(String aName)
	{
		if (m_symbols.Defined(aName))
			return m_symbols.Get(aName);
		else
			return null;
	}

	@Override
	public IScope GetParentScope()
	{
		return m_parentScope;
	}

	@Override
	public void SetParentScope(IScope parentScope)
	{
		m_parentScope = parentScope;
	}

	@Override
	public void AddIdentifier(Identifier anIdentifier, Object tag)
	{
		m_symbols.AddIdentifier(anIdentifier);
	}


}