114 Zeilen
3.1 KiB
C++
114 Zeilen
3.1 KiB
C++
/**
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* server/src/core/abstractmethod.hpp
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*
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* This file is part of the traintastic source code.
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*
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* Copyright (C) 2019-2021 Reinder Feenstra
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef TRAINTASTIC_SERVER_CORE_ABSTRACTMETHOD_HPP
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#define TRAINTASTIC_SERVER_CORE_ABSTRACTMETHOD_HPP
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#include "interfaceitem.hpp"
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#include "methodflags.hpp"
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#include <vector>
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#include <variant>
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#include <stdexcept>
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#include "objectptr.hpp"
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class AbstractMethod : public InterfaceItem
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{
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private:
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const MethodFlags m_flags;
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public:
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class MethodCallError : public std::runtime_error
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{
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public:
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MethodCallError(const std::string& what) :
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std::runtime_error(what)
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{
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}
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MethodCallError(const char* what) :
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std::runtime_error(what)
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{
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}
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};
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class InvalidNumberOfArgumentsError : public MethodCallError
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{
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public:
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InvalidNumberOfArgumentsError() :
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MethodCallError("invalid number of arguments")
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{
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}
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};
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class ArgumentError : public MethodCallError
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{
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public:
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const size_t index;
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ArgumentError(size_t _index, const std::string& what) :
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MethodCallError(what),
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index{_index}
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{
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}
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ArgumentError(size_t _index, const char* what) :
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MethodCallError(what),
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index{_index}
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{
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}
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};
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class OutOfRangeArgumentError : public ArgumentError
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{
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public:
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OutOfRangeArgumentError(size_t _index) :
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ArgumentError(_index, "argument: out of range")
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{
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}
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};
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class InvalidObjectArgumentError : public ArgumentError
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{
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public:
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InvalidObjectArgumentError(size_t _index) :
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ArgumentError(_index, "argument: invalid object")
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{
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}
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};
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using Argument = std::variant<bool, int64_t, double, std::string, ObjectPtr>;
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using Result = std::variant<std::monostate, bool, int64_t, double, std::string, ObjectPtr>;
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AbstractMethod(Object& object, const std::string& name, MethodFlags m_flags = noMethodFlags);
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inline bool isScriptCallable() const { return m_flags == MethodFlags::ScriptCallable; }
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inline MethodFlags flags() const { return m_flags; }
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virtual std::size_t argumentCount() const = 0;
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virtual std::vector<ValueType> argumentTypes() const = 0;
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virtual ValueType resultType() const = 0;
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virtual Result call(const std::vector<Argument>& args) = 0;
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};
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#endif
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