...trying out boost with luabind

luabind/luabind/error.hpp

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+// Copyright (c) 2003 Daniel Wallin and Arvid Norberg
+
+// 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.
+
+#ifndef LUABIND_ERROR_HPP_INCLUDED
+#define LUABIND_ERROR_HPP_INCLUDED
+
+#include <luabind/prefix.hpp>
+#include <exception>
+#include <luabind/config.hpp>
+#include <luabind/typeid.hpp>
+
+struct lua_State;
+
+namespace luabind
+{
+
+#ifndef LUABIND_NO_EXCEPTIONS
+
+	// this exception usually means that the lua function you called
+	// from C++ failed with an error code. You will have to
+	// read the error code from the top of the lua stack
+	// the reason why this exception class doesn't contain
+	// the message itself is that std::string's copy constructor
+	// may throw, if the copy constructor of an exception that is
+	// being thrown throws another exception, terminate will be called
+	// and the entire application is killed.
+	class LUABIND_API error : public std::exception
+	{
+	public:
+		explicit error(lua_State* L): m_L(L) {}
+		lua_State* state() const throw() { return m_L; }
+		virtual const char* what() const throw()
+		{
+			return "lua runtime error";
+		}
+	private:
+		lua_State* m_L;
+	};
+
+	// if an object_cast<>() fails, this is thrown
+	// it is also thrown if the return value of
+	// a lua function cannot be converted
+	class LUABIND_API cast_failed : public std::exception
+	{
+	public:
+		cast_failed(lua_State* L, type_id const& i): m_L(L), m_info(i) {}
+		lua_State* state() const throw() { return m_L; }
+		type_id info() const throw() { return m_info; }
+		virtual const char* what() const throw() { return "unable to make cast"; }
+	private:
+		lua_State* m_L;
+		type_id m_info;
+	};
+
+#else
+
+	typedef void(*error_callback_fun)(lua_State*);
+	typedef void(*cast_failed_callback_fun)(lua_State*, type_id const&);
+
+	LUABIND_API void set_error_callback(error_callback_fun e);
+	LUABIND_API void set_cast_failed_callback(cast_failed_callback_fun c);
+	LUABIND_API error_callback_fun get_error_callback();
+	LUABIND_API cast_failed_callback_fun get_cast_failed_callback();
+
+#endif
+
+	typedef int(*pcall_callback_fun)(lua_State*);
+	LUABIND_API void set_pcall_callback(pcall_callback_fun e);
+	LUABIND_API pcall_callback_fun get_pcall_callback();
+
+}
+
+#endif // LUABIND_ERROR_HPP_INCLUDED
+