ProxyCommand.cc

Go to the documentation of this file.

#include "ProxyCommand.hh"
#include "GlobalCommandController.hh"
#include "MSXCommandController.hh"
#include "CommandException.hh"
#include "MSXMotherBoard.hh"
#include "Reactor.hh"
#include "checked_cast.hh"
 
namespace openmsx {
 
ProxyCmd::ProxyCmd(Reactor& reactor_, std::string_view name_)
        : Command(reactor_.getGlobalCommandController(), name_)
        , reactor(reactor_)
{
}
 
Command* ProxyCmd::getMachineCommand() const
{
        MSXMotherBoard* motherBoard = reactor.getMotherBoard();
        if (!motherBoard) return nullptr;
        return motherBoard->getMSXCommandController().findCommand(getName());
}
 
void ProxyCmd::execute(std::span<const TclObject> tokens, TclObject& result)
{
        if (Command* command = getMachineCommand()) {
                if (!command->isAllowedInEmptyMachine()) {
                        const auto* controller = checked_cast<const MSXCommandController*>(
                                &command->getCommandController());
                        if (!controller->getMSXMotherBoard().getMachineConfig()) {
                                throw CommandException(
                                        "Can't execute command in empty machine");
                        }
                }
                command->execute(tokens, result);
        } else {
                throw CommandException("Invalid command name \"", getName(), '"');
        }
}
 
std::string ProxyCmd::help(std::span<const TclObject> tokens) const
{
        if (const auto* command = getMachineCommand()) {
                return command->help(tokens);
        } else {
                return "unknown command: " + getName();
        }
}
 
void ProxyCmd::tabCompletion(std::vector<std::string>& tokens) const
{
        if (const auto* command = getMachineCommand()) {
                command->tabCompletion(tokens);
        }
}
 
} // namespace openmsx