/**
  *
  *                  OOAS Compiler - C++ AST
  *
  * Copyright 2015, 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)
  *               Christoph Czurda (AIT)
  *
  */




#pragma once

#include <ast/expressions/LeafExpression.hpp>
#include <cstdint>
#include <ast/IAstVisitor.hpp>

namespace Ast {

template <class T>
class ValueExpression
	: public LeafExpression
{
protected:
	T m_value;

	ValueExpression(LeafTypeEnum type, ExpressionKind k):
		LeafExpression(type, k),
		m_value ()
	{};
	ValueExpression(const ValueExpression &toCopy):
		LeafExpression(toCopy),
		m_value(toCopy.m_value)
	{};
public:
	T value() {return m_value;};
};

class BoolValueExpression final
	: public ValueExpression<bool>
{
protected:
	BoolValueExpression():
		ValueExpression(LeafTypeEnum::_bool, ExpressionKind::Value_Bool)
	{};
	BoolValueExpression(const BoolValueExpression& toCopy):
		ValueExpression(toCopy)
	{};

	static BoolValueExpression* create(ExpressionKind) {return new BoolValueExpression();}
	static BoolValueExpression* createCopy(const BoolValueExpression& toCopy) {return new BoolValueExpression(toCopy);}
public:
	friend class Ast;
	friend class Expression;

	void init(std::int32_t line, std::int32_t pos, Type* typeRef,
			IdentifierList* callTargetsIdentifierListRef, SymbolTable* symbTabRef, bool value)
	{
		Expression::init(line,pos,typeRef,callTargetsIdentifierListRef, symbTabRef);
		m_value = value;
	}

	void accept(IAstVisitor& visitor) override {visitor.visit(this);};
};

class IntValueExpression final
	: public ValueExpression<std::int64_t>
{
protected:
	IntValueExpression():
		ValueExpression(LeafTypeEnum::integer, ExpressionKind::Value_Integer)
	{};
	IntValueExpression(const IntValueExpression& toCopy):
		ValueExpression(toCopy)
	{};

	static IntValueExpression* create(ExpressionKind) {return new IntValueExpression();}
	static IntValueExpression* createCopy(const IntValueExpression& toCopy) {return new IntValueExpression(toCopy);}
public:
	friend class Ast;
	friend class Expression;

	void init(std::int32_t line, std::int32_t pos,
			Type* typeRef,IdentifierList* callTargetsIdentifierListRef,
				SymbolTable* symbTabRef, std::int64_t value)
	{
		Expression::init(line,pos,typeRef,callTargetsIdentifierListRef, symbTabRef);
		m_value = value;
	}

	void accept(IAstVisitor& visitor) override {visitor.visit(this);};
};

class RefValueExpression final
	: public ValueExpression<void*>
{
protected:
	RefValueExpression():
		ValueExpression(LeafTypeEnum::reference, ExpressionKind::Value_Reference)
	{};
	RefValueExpression(const RefValueExpression& toCopy):
		ValueExpression(toCopy)
	{};

	static RefValueExpression* create(ExpressionKind) {return new RefValueExpression();}
	static RefValueExpression* createCopy(const RefValueExpression& toCopy) {return new RefValueExpression(toCopy);}
public:
	friend class Ast;
	friend class Expression;

	void init(std::int32_t line, std::int32_t pos, Type* typeRef,
			IdentifierList* callTargetsIdentifierListRef, SymbolTable* symbTabRef, void* value)
	{
		Expression::init(line,pos,typeRef,callTargetsIdentifierListRef, symbTabRef);
		m_value = value;
	}
	void accept(IAstVisitor& visitor) override {visitor.visit(this);};
};

// skip:
// LeafTypeEnum::real;
// LeafTypeEnum::chr;
}