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186 lines
4.9 KiB
C++
186 lines
4.9 KiB
C++
//------------------------------------------------------------------------------
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/*
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https://github.com/vinniefalco/LuaBridge
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Copyright 2012, Vinnie Falco <vinnie.falco@gmail.com>
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Copyright 2007, Nathan Reed
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License: The MIT License (http://www.opensource.org/licenses/mit-license.php)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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This file incorporates work covered by the following copyright and
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permission notice:
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The Loki Library
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Copyright (c) 2001 by Andrei Alexandrescu
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This code accompanies the book:
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Alexandrescu, Andrei. "Modern C++ Design: Generic Programming and Design
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Patterns Applied". Copyright (c) 2001. Addison-Wesley.
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Permission to use, copy, modify, distribute and sell this software for any
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purpose is hereby granted without fee, provided that the above copyright
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notice appear in all copies and that both that copyright notice and this
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permission notice appear in supporting documentation.
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The author or Addison-Welsey Longman make no representations about the
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suitability of this software for any purpose. It is provided "as is"
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without express or implied warranty.
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*/
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//==============================================================================
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#pragma once
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#include <LuaBridge/detail/Stack.h>
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#include <string>
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#include <typeinfo>
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namespace luabridge {
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/**
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None type means void parameters or return value.
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*/
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typedef void None;
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template <typename Head, typename Tail = None>
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struct TypeList
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{
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};
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/**
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A TypeList with actual values.
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*/
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template <typename List>
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struct TypeListValues
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{
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static std::string const tostring (bool)
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{
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return "";
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}
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};
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/**
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TypeListValues recursive template definition.
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*/
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template <typename Head, typename Tail>
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struct TypeListValues <TypeList <Head, Tail> >
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{
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Head hd;
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TypeListValues <Tail> tl;
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TypeListValues (Head hd_, TypeListValues <Tail> const& tl_)
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: hd (hd_), tl (tl_)
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{
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}
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static std::string const tostring (bool comma = false)
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{
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std::string s;
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if (comma)
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s = ", ";
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s = s + typeid (Head).name ();
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return s + TypeListValues <Tail>::tostring (true);
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}
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};
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// Specializations of type/value list for head types that are references and
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// const-references. We need to handle these specially since we can't count
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// on the referenced object hanging around for the lifetime of the list.
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template <typename Head, typename Tail>
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struct TypeListValues <TypeList <Head&, Tail> >
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{
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Head hd;
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TypeListValues <Tail> tl;
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TypeListValues (Head& hd_, TypeListValues <Tail> const& tl_)
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: hd (hd_), tl (tl_)
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{
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}
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static std::string const tostring (bool comma = false)
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{
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std::string s;
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if (comma)
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s = ", ";
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s = s + typeid (Head).name () + "&";
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return s + TypeListValues <Tail>::tostring (true);
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}
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};
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template <typename Head, typename Tail>
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struct TypeListValues <TypeList <Head const&, Tail> >
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{
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Head hd;
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TypeListValues <Tail> tl;
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TypeListValues (Head const& hd_, const TypeListValues <Tail>& tl_)
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: hd (hd_), tl (tl_)
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{
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}
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static std::string const tostring (bool comma = false)
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{
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std::string s;
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if (comma)
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s = ", ";
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s = s + typeid (Head).name () + " const&";
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return s + TypeListValues <Tail>::tostring (true);
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}
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};
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//==============================================================================
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/**
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Subclass of a TypeListValues constructable from the Lua stack.
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*/
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template <typename List, int Start = 1>
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struct ArgList
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{
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};
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template <int Start>
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struct ArgList <None, Start> : public TypeListValues <None>
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{
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ArgList (lua_State*)
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{
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}
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};
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template <typename Head, typename Tail, int Start>
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struct ArgList <TypeList <Head, Tail>, Start>
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: public TypeListValues <TypeList <Head, Tail> >
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{
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ArgList (lua_State* L)
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: TypeListValues <TypeList <Head, Tail> > (Stack <Head>::get (L, Start),
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ArgList <Tail, Start + 1> (L))
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{
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}
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};
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} // namespace luabridge
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