2019-10-12 21:07:06 -07:00

66 lines
2.1 KiB
C++

// 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.
#define LUABIND_BUILDING
#include <luabind/detail/pcall.hpp>
#include <luabind/error.hpp>
#include <luabind/lua_include.hpp>
namespace luabind { namespace detail
{
int pcall(lua_State *L, int nargs, int nresults)
{
pcall_callback_fun e = get_pcall_callback();
int en = 0;
if ( e )
{
int base = lua_gettop(L) - nargs;
lua_pushcfunction(L, e);
lua_insert(L, base); // push pcall_callback under chunk and args
en = base;
}
int result = lua_pcall(L, nargs, nresults, en);
if ( en )
lua_remove(L, en); // remove pcall_callback
return result;
}
int resume_impl(lua_State *L, int nargs, int)
{
#if LUA_VERSION_NUM >= 502
int res = lua_resume(L, NULL, nargs);
#else
int res = lua_resume(L, nargs);
#endif
#if LUA_VERSION_NUM >= 501
// Lua 5.1 added LUA_YIELD as a possible return value,
// this was causing crashes, because the caller expects 0 on success.
return (res == LUA_YIELD) ? 0 : res;
#else
return res;
#endif
}
}}