public static int Import(IntPtr ptr)
{
try
{
LuaNativeMethods.luaL_checktype(ptr, 1, LuaTypes.TYPE_STRING);
string str = LuaNativeMethods.lua_tostring(ptr, 1);
string[] ns = str.Split('.');
LuaNativeMethods.lua_pushglobaltable(ptr);
for (int n = 0; n < ns.Length; n++)
{
LuaNativeMethods.lua_getfield(ptr, -1, ns[n]);
if (!LuaNativeMethods.lua_istable(ptr, -1))
{
return(LuaObject.Error(ptr, "expect {0} is type table", ns));
}
LuaNativeMethods.lua_remove(ptr, -2);
}
LuaNativeMethods.lua_pushnil(ptr);
while (LuaNativeMethods.lua_next(ptr, -2) != 0)
{
string key = LuaNativeMethods.lua_tostring(ptr, -2);
LuaNativeMethods.lua_getglobal(ptr, key);
if (!LuaNativeMethods.lua_isnil(ptr, -1))
{
LuaNativeMethods.lua_pop(ptr, 1);
return(LuaObject.Error(ptr, "{0} had existed, import can't overload it.", key));
}
LuaNativeMethods.lua_pop(ptr, 1);
LuaNativeMethods.lua_setglobal(ptr, key);
}
LuaNativeMethods.lua_pop(ptr, 1);
LuaObject.PushValue(ptr, true);
return(1);
}
catch (Exception e)
{
return(LuaObject.Error(ptr, e));
}
}
private static void CompleteInstanceMeta(IntPtr ptr, Type self)
{
LuaNativeMethods.lua_pushstring(ptr, "__typename");
LuaNativeMethods.lua_pushstring(ptr, self.Name);
LuaNativeMethods.lua_rawset(ptr, -3);
// for instance
indexFunction.Push(ptr);
LuaNativeMethods.lua_setfield(ptr, -2, "__index");
newIndexFunction.Push(ptr);
LuaNativeMethods.lua_setfield(ptr, -2, "__newindex");
PushValue(ptr, luaAdd);
LuaNativeMethods.lua_setfield(ptr, -2, "__add");
PushValue(ptr, luaSub);
LuaNativeMethods.lua_setfield(ptr, -2, "__sub");
PushValue(ptr, luaMul);
LuaNativeMethods.lua_setfield(ptr, -2, "__mul");
PushValue(ptr, luaDiv);
LuaNativeMethods.lua_setfield(ptr, -2, "__div");
PushValue(ptr, luaUnm);
LuaNativeMethods.lua_setfield(ptr, -2, "__unm");
PushValue(ptr, luaEq);
LuaNativeMethods.lua_setfield(ptr, -2, "__eq");
PushValue(ptr, luaLe);
LuaNativeMethods.lua_setfield(ptr, -2, "__le");
PushValue(ptr, luaLt);
LuaNativeMethods.lua_setfield(ptr, -2, "__lt");
PushValue(ptr, luaToString);
LuaNativeMethods.lua_setfield(ptr, -2, "__tostring");
LuaNativeMethods.lua_pushcfunction(ptr, LuaGC);
LuaNativeMethods.lua_setfield(ptr, -2, "__gc");
if (self.IsValueType && IsImplByLua(self))
{
LuaNativeMethods.lua_pushvalue(ptr, -1);
LuaNativeMethods.lua_setglobal(ptr, self.FullName + ".Instance");
}
LuaNativeMethods.lua_setfield(ptr, LuaIndexes.LUARegistryIndex, ObjectCache.GetAQName(self));
}
public static int Init(IntPtr ptr)
{
LuaNativeMethods.lua_pushlightuserdata(ptr, ptr);
LuaNativeMethods.lua_setglobal(ptr, "__main_state");
LuaNativeMethods.lua_pushcfunction(ptr, Print);
LuaNativeMethods.lua_setglobal(ptr, "print");
LuaNativeMethods.lua_pushcfunction(ptr, PrintError);
LuaNativeMethods.lua_setglobal(ptr, "printerror");
LuaNativeMethods.lua_pushcfunction(ptr, ProtectedCall);
LuaNativeMethods.lua_setglobal(ptr, "pcall");
PushCSFunction(ptr, Import);
LuaNativeMethods.lua_setglobal(ptr, "import");
string resumefunc = @"
local resume = coroutine.resume
local function check(co, ok, err, ...)
if not ok then UnityEngine.Debug.LogError(debug.traceback(co,err)) end
return ok, err, ...
end
coroutine.resume=function(co,...)
return check(co, resume(co,...))
end
";
// overload resume function for report error
LuaState.Get(ptr).DoString(resumefunc);
// https://github.com/pkulchenko/MobDebug/blob/master/src/mobdebug.lua#L290
// Dump only 3 stacks, or it will return null (I don't know why)
string dumpstackfunc = @"
local printerror=printerror
dumpstack=function()
function vars(f)
local dump = string.Emptystring.Empty
local func = debug.getinfo(f, string.Emptyfstring.Empty).func
local i = 1
local locals = {}
-- get locals
while true do
local name, value = debug.getlocal(f, i)
if not name then break end
if string.sub(name, 1, 1) ~= '(' then
dump = dump .. string.Empty string.Empty .. name .. string.Empty=string.Empty .. tostring(value) .. string.Empty\nstring.Empty
end
i = i + 1
end
-- get varargs (these use negative indices)
i = 1
while true do
local name, value = debug.getlocal(f, -i)
-- `not name` should be enough, but LuaJIT 2.0.0 incorrectly reports `(*temporary)` names here
if not name or name ~= string.Empty(*vararg)string.Empty then break end
dump = dump .. string.Empty string.Empty .. name .. string.Empty=string.Empty .. tostring(value) .. string.Empty\nstring.Empty
i = i + 1
end
-- get upvalues
i = 1
while func do -- check for func as it may be nil for tail calls
local name, value = debug.getupvalue(func, i)
if not name then break end
dump = dump .. string.Empty string.Empty .. name .. string.Empty=string.Empty .. tostring(value) .. string.Empty\nstring.Empty
i = i + 1
end
return dump
end
local dump = string.Emptystring.Empty
for i = 3, 100 do
local source = debug.getinfo(i, string.EmptySstring.Empty)
if not source then break end
dump = dump .. string.Empty- stackstring.Empty .. tostring(i-2) .. string.Empty\nstring.Empty
dump = dump .. vars(i+1)
if source.what == 'main' then break end
end
printerror(dump)
end
";
LuaState.Get(ptr).DoString(dumpstackfunc);
#if UNITY_ANDROID
// fix android performance drop with JIT on according to luajit mailist post
LuaState.get(ptr).doString("if jit then require('jit.opt').start('sizemcode=256','maxmcode=256') for i=1,1000 do end end");
#endif
PushCSFunction(ptr, DoFile);
LuaNativeMethods.lua_setglobal(ptr, "dofile");
PushCSFunction(ptr, LoadFile);
LuaNativeMethods.lua_setglobal(ptr, "loadfile");
PushCSFunction(ptr, Loader);
int loaderFunc = LuaNativeMethods.lua_gettop(ptr);
LuaNativeMethods.lua_getglobal(ptr, "package");
#if LUA_5_3
LuaNativeMethods.lua_getfield(ptr, -1, "searchers");
#else
LuaNativeMethods.lua_getfield(ptr, -1, "loaders");
#endif
int loaderTable = LuaNativeMethods.lua_gettop(ptr);
// Shift table elements right
for (int e = LuaNativeMethods.lua_rawlen(ptr, loaderTable) + 1; e > 2; e--)
{
LuaNativeMethods.lua_rawgeti(ptr, loaderTable, e - 1);
LuaNativeMethods.lua_rawseti(ptr, loaderTable, e);
}
LuaNativeMethods.lua_pushvalue(ptr, loaderFunc);
LuaNativeMethods.lua_rawseti(ptr, loaderTable, 2);
LuaNativeMethods.lua_settop(ptr, 0);
return(0);
}
public static void Init(IntPtr ptr)
{
string newindexfun = @"
local getmetatable=getmetatable
local rawget=rawget
local error=error
local type=type
local function newindex(ud,k,v)
local t=getmetatable(ud)
repeat
local h=rawget(t,k)
if h then
if h[2] then
h[2](ud,v)
return
else
error('property '..k..' is read only')
end
end
t=rawget(t,'__parent')
until t==nil
error('can not find '..k)
end
return newindex
";
string indexfun = @"
local type=type
local error=error
local rawget=rawget
local getmetatable=getmetatable
local function index(ud,k)
local t=getmetatable(ud)
repeat
local fun=rawget(t,k)
local tp=type(fun)
if tp=='function' then
return fun
elseif tp=='table' then
local f=fun[1]
if f then
return f(ud)
else
error('property '..k..' isthis.Write only')
end
end
t = rawget(t,'__parent')
until t==nil
error('Can not find '..k)
end
return index
";
LuaState state = LuaState.Get(ptr);
newIndexFunction = (LuaFunction)state.DoString(newindexfun);
indexFunction = (LuaFunction)state.DoString(indexfun);
// object method
LuaNativeMethods.lua_createtable(ptr, 0, 4);
AddMember(ptr, ToString);
AddMember(ptr, GetHashCode);
AddMember(ptr, Equals);
AddMember(ptr, GetType);
LuaNativeMethods.lua_setfield(ptr, LuaIndexes.LUARegistryIndex, "__luabaseobject");
LuaArray.Init(ptr);
LuaVarObject.Init(ptr);
LuaNativeMethods.lua_newtable(ptr);
LuaNativeMethods.lua_setglobal(ptr, DelgateTable);
}