mirror of https://github.com/minetest/minetest.git
127 lines
2.9 KiB
C++
127 lines
2.9 KiB
C++
/*
|
|
Minetest
|
|
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "script.h"
|
|
#include <cstdarg>
|
|
#include <cstring>
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
#include "log.h"
|
|
#include <iostream>
|
|
|
|
extern "C" {
|
|
#include <lua.h>
|
|
#include <lualib.h>
|
|
#include <lauxlib.h>
|
|
}
|
|
|
|
LuaError::LuaError(lua_State *L, const std::string &s)
|
|
{
|
|
m_s = "LuaError: ";
|
|
m_s += s + "\n";
|
|
m_s += script_get_backtrace(L);
|
|
}
|
|
|
|
std::string script_get_backtrace(lua_State *L)
|
|
{
|
|
std::string s;
|
|
lua_getfield(L, LUA_GLOBALSINDEX, "debug");
|
|
if(lua_istable(L, -1)){
|
|
lua_getfield(L, -1, "traceback");
|
|
if(lua_isfunction(L, -1)){
|
|
lua_call(L, 0, 1);
|
|
if(lua_isstring(L, -1)){
|
|
s += lua_tostring(L, -1);
|
|
}
|
|
lua_pop(L, 1);
|
|
}
|
|
else{
|
|
lua_pop(L, 1);
|
|
}
|
|
}
|
|
lua_pop(L, 1);
|
|
return s;
|
|
}
|
|
|
|
void script_error(lua_State *L, const char *fmt, ...)
|
|
{
|
|
va_list argp;
|
|
va_start(argp, fmt);
|
|
char buf[10000];
|
|
vsnprintf(buf, 10000, fmt, argp);
|
|
va_end(argp);
|
|
//errorstream<<"SCRIPT ERROR: "<<buf;
|
|
throw LuaError(L, buf);
|
|
}
|
|
|
|
int luaErrorHandler(lua_State *L) {
|
|
lua_getfield(L, LUA_GLOBALSINDEX, "debug");
|
|
if (!lua_istable(L, -1)) {
|
|
lua_pop(L, 1);
|
|
return 1;
|
|
}
|
|
lua_getfield(L, -1, "traceback");
|
|
if (!lua_isfunction(L, -1)) {
|
|
lua_pop(L, 2);
|
|
return 1;
|
|
}
|
|
lua_pushvalue(L, 1);
|
|
lua_pushinteger(L, 2);
|
|
lua_call(L, 2, 1);
|
|
return 1;
|
|
}
|
|
|
|
bool script_load(lua_State *L, const char *path)
|
|
{
|
|
verbosestream<<"Loading and running script from "<<path<<std::endl;
|
|
|
|
lua_pushcfunction(L, luaErrorHandler);
|
|
int errorhandler = lua_gettop(L);
|
|
|
|
int ret = luaL_loadfile(L, path) || lua_pcall(L, 0, 0, errorhandler);
|
|
if(ret){
|
|
errorstream<<"========== ERROR FROM LUA ==========="<<std::endl;
|
|
errorstream<<"Failed to load and run script from "<<std::endl;
|
|
errorstream<<path<<":"<<std::endl;
|
|
errorstream<<std::endl;
|
|
errorstream<<lua_tostring(L, -1)<<std::endl;
|
|
errorstream<<std::endl;
|
|
errorstream<<"=======END OF ERROR FROM LUA ========"<<std::endl;
|
|
lua_pop(L, 1); // Pop error message from stack
|
|
lua_pop(L, 1); // Pop the error handler from stack
|
|
return false;
|
|
}
|
|
lua_pop(L, 1); // Pop the error handler from stack
|
|
return true;
|
|
}
|
|
|
|
lua_State* script_init()
|
|
{
|
|
lua_State *L = luaL_newstate();
|
|
luaL_openlibs(L);
|
|
return L;
|
|
}
|
|
|
|
void script_deinit(lua_State *L)
|
|
{
|
|
lua_close(L);
|
|
}
|
|
|
|
|