mirror of
https://github.com/TES3MP/openmw-tes3mp.git
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113 lines
3.3 KiB
C++
113 lines
3.3 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 2008, Nigel Atkinson <suprapilot+LuaCode@gmail.com>
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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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*/
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//==============================================================================
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class LuaException : public std::exception
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{
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private:
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lua_State* m_L;
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std::string m_what;
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public:
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//----------------------------------------------------------------------------
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/**
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Construct a LuaException after a lua_pcall().
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*/
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LuaException (lua_State* L, int /*code*/)
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: m_L (L)
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{
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whatFromStack ();
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}
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//----------------------------------------------------------------------------
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LuaException (lua_State *L,
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char const*,
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char const*,
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long)
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: m_L (L)
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{
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whatFromStack ();
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}
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//----------------------------------------------------------------------------
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~LuaException() throw ()
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{
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}
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//----------------------------------------------------------------------------
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char const* what() const throw ()
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{
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return m_what.c_str();
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}
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//============================================================================
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/**
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Throw an exception.
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This centralizes all the exceptions thrown, so that we can set
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breakpoints before the stack is unwound, or otherwise customize the
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behavior.
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*/
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template <class Exception>
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static void Throw (Exception e)
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{
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throw e;
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}
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//----------------------------------------------------------------------------
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/**
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Wrapper for lua_pcall that throws.
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*/
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static void pcall (lua_State* L, int nargs = 0, int nresults = 0, int msgh = 0)
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{
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int code = lua_pcall (L, nargs, nresults, msgh);
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if (code != LUABRIDGE_LUA_OK)
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Throw (LuaException (L, code));
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}
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//----------------------------------------------------------------------------
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protected:
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void whatFromStack ()
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{
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if (lua_gettop (m_L) > 0)
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{
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char const* s = lua_tostring (m_L, -1);
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m_what = s ? s : "";
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}
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else
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{
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// stack is empty
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m_what = "missing error";
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}
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}
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};
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