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Diffstat (limited to 'libs/lua/LuaBridge/detail/TypeList.h')
-rw-r--r-- | libs/lua/LuaBridge/detail/TypeList.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/libs/lua/LuaBridge/detail/TypeList.h b/libs/lua/LuaBridge/detail/TypeList.h new file mode 100644 index 0000000000..21f850e89d --- /dev/null +++ b/libs/lua/LuaBridge/detail/TypeList.h @@ -0,0 +1,174 @@ +//------------------------------------------------------------------------------ +/* + https://github.com/vinniefalco/LuaBridge + + Copyright 2012, Vinnie Falco <vinnie.falco@gmail.com> + Copyright 2007, Nathan Reed + + License: The MIT License (http://www.opensource.org/licenses/mit-license.php) + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + + This file incorporates work covered by the following copyright and + permission notice: + + The Loki Library + Copyright (c) 2001 by Andrei Alexandrescu + This code accompanies the book: + Alexandrescu, Andrei. "Modern C++ Design: Generic Programming and Design + Patterns Applied". Copyright (c) 2001. Addison-Wesley. + Permission to use, copy, modify, distribute and sell this software for any + purpose is hereby granted without fee, provided that the above copyright + notice appear in all copies and that both that copyright notice and this + permission notice appear in supporting documentation. + The author or Addison-Welsey Longman make no representations about the + suitability of this software for any purpose. It is provided "as is" + without express or implied warranty. +*/ +//============================================================================== + +/** + None type means void parameters or return value. +*/ +typedef void None; + +template <typename Head, typename Tail = None> +struct TypeList +{ +}; + +/** + A TypeList with actual values. +*/ +template <typename List> +struct TypeListValues +{ + static std::string const tostring (bool) + { + return ""; + } +}; + +/** + TypeListValues recursive template definition. +*/ +template <typename Head, typename Tail> +struct TypeListValues <TypeList <Head, Tail> > +{ + Head hd; + TypeListValues <Tail> tl; + + TypeListValues (Head hd_, TypeListValues <Tail> const& tl_) + : hd (hd_), tl (tl_) + { + } + + static std::string const tostring (bool comma = false) + { + std::string s; + + if (comma) + s = ", "; + + s = s + typeid (Head).name (); + + return s + TypeListValues <Tail>::tostring (true); + } +}; + +// Specializations of type/value list for head types that are references and +// const-references. We need to handle these specially since we can't count +// on the referenced object hanging around for the lifetime of the list. + +template <typename Head, typename Tail> +struct TypeListValues <TypeList <Head&, Tail> > +{ + Head hd; + TypeListValues <Tail> tl; + + TypeListValues (Head& hd_, TypeListValues <Tail> const& tl_) + : hd (hd_), tl (tl_) + { + } + + static std::string const tostring (bool comma = false) + { + std::string s; + + if (comma) + s = ", "; + + s = s + typeid (Head).name () + "&"; + + return s + TypeListValues <Tail>::tostring (true); + } +}; + +template <typename Head, typename Tail> +struct TypeListValues <TypeList <Head const&, Tail> > +{ + Head hd; + TypeListValues <Tail> tl; + + TypeListValues (Head const& hd_, const TypeListValues <Tail>& tl_) + : hd (hd_), tl (tl_) + { + } + + static std::string const tostring (bool comma = false) + { + std::string s; + + if (comma) + s = ", "; + + s = s + typeid (Head).name () + " const&"; + + return s + TypeListValues <Tail>::tostring (true); + } +}; + +//============================================================================== +/** + Subclass of a TypeListValues constructable from the Lua stack. +*/ + +template <typename List, int Start = 1> +struct ArgList +{ +}; + +template <int Start> +struct ArgList <None, Start> : public TypeListValues <None> +{ + ArgList (lua_State*) + { + } +}; + +template <typename Head, typename Tail, int Start> +struct ArgList <TypeList <Head, Tail>, Start> + : public TypeListValues <TypeList <Head, Tail> > +{ + ArgList (lua_State* L) + : TypeListValues <TypeList <Head, Tail> > (Stack <Head>::get (L, Start), + ArgList <Tail, Start + 1> (L)) + { + } +}; |