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;

import org.momut.ooas.ast.IAstVisitor;

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

///  Complex Type: Function

///

public final class FunctionType extends Type

{

        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<Type> m_parameter;

        private Type m_returnType;

        private final FunctionTypeEnum m_functionType;

        public Boolean isMiracleSafe() { return m_miracleSafe; }

        public boolean isPureFunction() { return m_pure; }

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

        public Type returnType() { return m_returnType; }

        public FunctionTypeEnum functionType() { return m_functionType; }

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

        {

                super (TypeKind.FunctionType, null);

                if (parameter != null)

                        m_parameter = parameter;

                else

                        m_parameter = new LinkedList<Type>();

                m_returnType = returnType;

                m_functionType = functionType;

                m_miracleSafe = null;

                m_pure = false;

        }

        public void AddParameterType(Type aType)

        {

                m_parameter.addLast(aType);

        }

        public void SetReturnType(Type 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 Type 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();

        }

}