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| author | Remko Tronçon <git@el-tramo.be> | 2013-08-25 16:39:06 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2013-08-27 19:47:48 (GMT) |
| commit | 1bb607f96e79845ce30dd5590b0d53cc394ac150 (patch) | |
| tree | 6156622ddd1b3238aec73536e0dc25b632965a71 /Sluift/GenericLuaElementConvertor.h | |
| parent | c4431ee90f3f1daac0a12b35bfa3378d5c570eaa (diff) | |
| download | swift-1bb607f96e79845ce30dd5590b0d53cc394ac150.zip swift-1bb607f96e79845ce30dd5590b0d53cc394ac150.tar.bz2 | |
PubSub implementation & Sluift refactoring.
Change-Id: I04ff7111b73565c00bff6db183451774a633344f
Diffstat (limited to 'Sluift/GenericLuaElementConvertor.h')
| -rw-r--r-- | Sluift/GenericLuaElementConvertor.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Sluift/GenericLuaElementConvertor.h b/Sluift/GenericLuaElementConvertor.h new file mode 100644 index 0000000..afad481 --- /dev/null +++ b/Sluift/GenericLuaElementConvertor.h @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2013 Remko Tronçon + * Licensed under the GNU General Public License. + * See the COPYING file for more information. + */ + +#pragma once + +#include <lua.hpp> +#include <string> + +#include <Swiften/Base/Override.h> +#include <Sluift/LuaElementConvertor.h> +#include <Sluift/Lua/Check.h> +#include <Sluift/Lua/LuaUtils.h> + +namespace Swift { + template<typename T> + class GenericLuaElementConvertor : public LuaElementConvertor { + public: + GenericLuaElementConvertor(const std::string& type) : type(type) { + } + + virtual ~GenericLuaElementConvertor() {} + + virtual boost::shared_ptr<Payload> convertFromLua(lua_State* L, int index, const std::string& payloadType) SWIFTEN_OVERRIDE { + if (payloadType == type) { + Lua::checkType(L, index, LUA_TTABLE); + lua_pushvalue(L, index); + boost::shared_ptr<Payload> result = doConvertFromLua(L); + lua_pop(L, 1); + return result; + } + return boost::shared_ptr<Payload>(); + } + + virtual boost::optional<std::string> convertToLua( + lua_State* L, boost::shared_ptr<Payload> payload) SWIFTEN_OVERRIDE { + if (boost::shared_ptr<T> actualPayload = boost::dynamic_pointer_cast<T>(payload)) { + doConvertToLua(L, actualPayload); + assert(lua_type(L, -1) == LUA_TTABLE); + return type; + } + return NO_RESULT; + } + + protected: + virtual boost::shared_ptr<T> doConvertFromLua(lua_State*) = 0; + virtual void doConvertToLua(lua_State*, boost::shared_ptr<T>) = 0; + + private: + std::string type; + }; +} |