/* -*- C++ -*- */

#ifndef _EXPRESSION_TREE_COMMAND_CPP

#define _EXPRESSION_TREE_COMMAND_CPP

#include "Expression_Tree_Command.h"

#include "Expression_Tree_Command_Impl.h"

Expression_Tree_Command::Expression_Tree_Command (Expression_Tree_Command_Impl *impl)

: command_impl_ (impl)

{

}

Expression_Tree_Command::Expression_Tree_Command (const Expression_Tree_Command &rhs)

: command_impl_ (rhs.command_impl_)

{

}

Expression_Tree_Command &

Expression_Tree_Command::operator= (const Expression_Tree_Command &rhs)

{

// check for self assignment first

if (this != &rhs)

/// we just make use of the Refcounter functionality here

command_impl_ = rhs.command_impl_;

return *this;

}

Expression_Tree_Command::~Expression_Tree_Command (void)

{

}

bool

Expression_Tree_Command::execute (void)

{

return command_impl_->execute ();

}

void

Expression_Tree_Command::print_valid_commands (void)

{

command_impl_->print_valid_commands ();

}

#endif /* _EXPRESSION_TREE_COMMAND_CPP */