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-rw-r--r--src/script.cpp46
1 files changed, 44 insertions, 2 deletions
diff --git a/src/script.cpp b/src/script.cpp
index 5a6c98026..8b1b7013e 100644
--- a/src/script.cpp
+++ b/src/script.cpp
@@ -31,6 +31,27 @@ extern "C" {
#include <lauxlib.h>
}
+LuaError::LuaError(lua_State *L, const std::string &s)
+{
+ m_s = "LuaError: ";
+ m_s += s + "\n";
+ 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)){
+ m_s += lua_tostring(L, -1);
+ }
+ lua_pop(L, 1);
+ }
+ else{
+ lua_pop(L, 1);
+ }
+ }
+ lua_pop(L, 1);
+}
+
void script_error(lua_State *L, const char *fmt, ...)
{
va_list argp;
@@ -39,13 +60,34 @@ void script_error(lua_State *L, const char *fmt, ...)
vsnprintf(buf, 10000, fmt, argp);
va_end(argp);
//errorstream<<"SCRIPT ERROR: "<<buf;
- throw LuaError(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)
{
infostream<<"Loading and running script from "<<path<<std::endl;
- int ret = luaL_loadfile(L, path) || lua_pcall(L, 0, 0, 0);
+
+ lua_pushcfunction(L, luaErrorHandler);
+ int errorhandler = lua_gettop(L);
+
+ int ret = luaL_loadfile(L, path) || lua_pcall(L, 0, 0, errorhandler);
if(ret){
errorstream<<"Failed to load and run script from "<<path<<":"<<std::endl;
errorstream<<"[LUA] "<<std::endl;