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.types;

import java.util.LinkedList;

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

///  Complex Type: Function

///

public final class FunctionType extends UlyssesType

{

	public enum FunctionTypeEnum {

		Observable (0),

		Controllable (1),

		Continuous (2),

		Internal (3),

		Method (4);

		public final int integerValue; // do not change, this is needed by the backends! i.e. public API

		private FunctionTypeEnum(int val) {

			integerValue = val;

		}

	}

	private Boolean m_miracleSafe = null;

	private boolean m_pure;

	private LinkedList<UlyssesType> m_parameter;

	private UlyssesType m_returnType;

	private final FunctionTypeEnum m_functionType;

	public Boolean isMiracleSafe() { return m_miracleSafe; }

	public boolean isPureFunction() { return m_pure; }

	public LinkedList<UlyssesType> parameter() { return m_parameter; }

	public UlyssesType returnType() { return m_returnType; }

	public FunctionTypeEnum functionType() { return m_functionType; }

	public FunctionType(FunctionTypeEnum functionType, LinkedList<UlyssesType> parameter, UlyssesType returnType)

	{

		super (TypeKind.FunctionType, null);

		if (parameter != null)

			m_parameter = parameter;

		else

			m_parameter = new LinkedList<UlyssesType>();

		m_returnType = returnType;

		m_functionType = functionType;

		m_miracleSafe = null;

		m_pure = false;

	}

	public void AddParameterType(UlyssesType aType)

	{

		m_parameter.addLast(aType);

	}

	public void SetReturnType(UlyssesType aType)

	{

		m_returnType = aType;

	}

	public void SetMiracleSafe(boolean newValue)

	{

		m_miracleSafe = newValue;

	}

	public void SetIsPureFunction(boolean newValue)

	{

		m_pure = newValue;

	}

	@Override

	public void Accept(IAstVisitor visitor)

	{

		visitor.visit(this);

	}

	@Override

	public /*override*/ String AnonymousName()

	{

		final StringBuilder result = new StringBuilder();

		result.append("fun_");

		result.append(m_functionType.toString());

		result.append("_");

		for (final UlyssesType sym: m_parameter)

		{

			result.append(sym.toString());

			result.append("_");

		}

		result.append("_");

		if (m_returnType != null)

			result.append(m_returnType.toString());

		else

			result.append("void");

// the anonymous name MUST stay the same!

//		result.append("_");

//		result.append(m_pure);

		return result.toString();

	}

}