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Pass a errfunc to lua_pcall to get a traceback

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This commit is contained in:
ShadowNinja 2013-11-05 12:06:15 -05:00
parent 3f519eb729
commit 371b39a09a
19 changed files with 424 additions and 324 deletions
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70
src/script/cpp_api/s_item.cpp
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@ -34,6 +34,9 @@ bool ScriptApiItem::item_OnDrop(ItemStack &item,
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
// Push callback function on stack
if(!getItemCallback(item.name.c_str(), "on_drop"))
return false;
@ -42,10 +45,11 @@ bool ScriptApiItem::item_OnDrop(ItemStack &item,
LuaItemStack::create(L, item);
objectrefGetOrCreate(dropper);
pushFloatPos(L, pos);
if(lua_pcall(L, 3, 1, 0))
scriptError("error: %s", lua_tostring(L, -1));
if(lua_pcall(L, 3, 1, errorhandler))
scriptError();
if(!lua_isnil(L, -1))
item = read_item(L,-1, getServer());
lua_pop(L, 2); // Pop item and error handler
return true;
}
@ -54,6 +58,9 @@ bool ScriptApiItem::item_OnPlace(ItemStack &item,
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
// Push callback function on stack
if(!getItemCallback(item.name.c_str(), "on_place"))
return false;
@ -62,10 +69,11 @@ bool ScriptApiItem::item_OnPlace(ItemStack &item,
LuaItemStack::create(L, item);
objectrefGetOrCreate(placer);
pushPointedThing(pointed);
if(lua_pcall(L, 3, 1, 0))
scriptError("error: %s", lua_tostring(L, -1));
if(lua_pcall(L, 3, 1, errorhandler))
scriptError();
if(!lua_isnil(L, -1))
item = read_item(L,-1, getServer());
lua_pop(L, 2); // Pop item and error handler
return true;
}
@ -74,6 +82,9 @@ bool ScriptApiItem::item_OnUse(ItemStack &item,
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
// Push callback function on stack
if(!getItemCallback(item.name.c_str(), "on_use"))
return false;
@ -82,10 +93,11 @@ bool ScriptApiItem::item_OnUse(ItemStack &item,
LuaItemStack::create(L, item);
objectrefGetOrCreate(user);
pushPointedThing(pointed);
if(lua_pcall(L, 3, 1, 0))
scriptError("error: %s", lua_tostring(L, -1));
if(lua_pcall(L, 3, 1, errorhandler))
scriptError();
if(!lua_isnil(L, -1))
item = read_item(L,-1, getServer());
lua_pop(L, 2); // Pop item and error handler
return true;
}
@ -94,6 +106,9 @@ bool ScriptApiItem::item_OnCraft(ItemStack &item, ServerActiveObject *user,
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
lua_getglobal(L, "minetest");
lua_getfield(L, -1, "on_craft");
LuaItemStack::create(L, item);
@ -106,10 +121,11 @@ bool ScriptApiItem::item_OnCraft(ItemStack &item, ServerActiveObject *user,
push_items(L, items);
InvRef::create(L, craft_inv);
if(lua_pcall(L, 4, 1, 0))
scriptError("error: %s", lua_tostring(L, -1));
if(lua_pcall(L, 4, 1, errorhandler))
scriptError();
if(!lua_isnil(L, -1))
item = read_item(L,-1, getServer());
lua_pop(L, 2); // Pop item and error handler
return true;
}
@ -118,11 +134,14 @@ bool ScriptApiItem::item_CraftPredict(ItemStack &item, ServerActiveObject *user,
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
lua_getglobal(L, "minetest");
lua_getfield(L, -1, "craft_predict");
LuaItemStack::create(L, item);
objectrefGetOrCreate(user);
//Push inventory list
std::vector<ItemStack> items;
for(u32 i=0; i<old_craft_grid->getSize(); i++)
@ -130,10 +149,11 @@ bool ScriptApiItem::item_CraftPredict(ItemStack &item, ServerActiveObject *user,
push_items(L, items);
InvRef::create(L, craft_inv);
if(lua_pcall(L, 4, 1, 0))
scriptError("error: %s", lua_tostring(L, -1));
if(lua_pcall(L, 4, 1, errorhandler))
scriptError();
if(!lua_isnil(L, -1))
item = read_item(L,-1, getServer());
lua_pop(L, 2); // Pop item and error handler
return true;
}
@ -149,15 +169,15 @@ bool ScriptApiItem::getItemCallback(const char *name, const char *callbackname)
lua_getglobal(L, "minetest");
lua_getfield(L, -1, "registered_items");
lua_remove(L, -2);
lua_remove(L, -2); // Remove minetest
luaL_checktype(L, -1, LUA_TTABLE);
lua_getfield(L, -1, name);
lua_remove(L, -2);
lua_remove(L, -2); // Remove registered_items
// Should be a table
if(lua_type(L, -1) != LUA_TTABLE)
{
// Report error and clean up
errorstream<<"Item \""<<name<<"\" not defined"<<std::endl;
errorstream << "Item \"" << name << "\" not defined" << std::endl;
lua_pop(L, 1);
// Try minetest.nodedef_default instead
@ -167,24 +187,16 @@ bool ScriptApiItem::getItemCallback(const char *name, const char *callbackname)
luaL_checktype(L, -1, LUA_TTABLE);
}
lua_getfield(L, -1, callbackname);
lua_remove(L, -2);
lua_remove(L, -2); // Remove item def
// Should be a function or nil
if(lua_type(L, -1) == LUA_TFUNCTION)
{
if (lua_type(L, -1) == LUA_TFUNCTION) {
return true;
} else if (!lua_isnil(L, -1)) {
errorstream << "Item \"" << name << "\" callback \""
<< callbackname << "\" is not a function" << std::endl;
}
else if(lua_isnil(L, -1))
{
lua_pop(L, 1);
return false;
}
else
{
errorstream<<"Item \""<<name<<"\" callback \""
<<callbackname<<" is not a function"<<std::endl;
lua_pop(L, 1);
return false;
}
lua_pop(L, 1);
return false;
}
void ScriptApiItem::pushPointedThing(const PointedThing& pointed)