/**
  *
  *                  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/statements/Statement.hpp>
#include <ast/IScope.hpp>
#include <ast/expressions/Expression.hpp>
#include <ast/statements/Block.hpp>

namespace Ast {

class GuardedCommand final
	: public Statement
	, public IScope
{
protected:
	Expression* m_guard;
	Statement* m_body;
	IScope* m_parentScope;

	GuardedCommand():
		Statement(StatementKind::GuardedCommand),
		m_guard (nullptr),
		m_body (nullptr),
		m_parentScope(nullptr)
	{}

	GuardedCommand(const GuardedCommand &toCopy):
		Statement(toCopy),
		m_guard (toCopy.m_guard),
		m_body (toCopy.m_body),
		m_parentScope(toCopy.m_parentScope)
	{}

	static GuardedCommand* create() {return new GuardedCommand();}
	static GuardedCommand* createCopy(const GuardedCommand& toCopy) {return new GuardedCommand(toCopy);}
public:
	friend class Ast;
	friend class Statement;

	void init(std::int32_t line, std::int32_t pos, IScope* scopeRef, Expression* guardExprRef,
				Statement* bodyRef)
	{
		Statement::init(line,pos);
		m_guard = guardExprRef;
		m_body = bodyRef;
		m_parentScope = scopeRef;
	}
	Expression* guard() {return m_guard;};
	Statement* body() {return m_body;};
	void accept(IAstVisitor& visitor) override {visitor.visit(this);};

	void setGuard(Expression* newGuard) {m_guard = newGuard;};
	void setBody(Statement* newBody) {m_body = newBody;};

	Identifier* resolveIdentifier(const std::string& ) const override { return nullptr; };
	IScope* getParentScope() const override {return m_parentScope;};
	std::string getScopeName() const override {return "";}
	void setParentScope(IScope* parentScope) override {m_parentScope = parentScope;};
	void addIdentifier(Identifier*, void* ) override {throw new Base::NotImplementedException(); /*cannot add to guarded command!*/};

	IScope* asScope() final {return (IScope*) this;}
};
}