static int _GetBaseMetatable(IntPtr L)
{
LuaState luaState = LuaState.Get(L);
int refId;
LuaLib.lua_pushstring(L, "__refId"); // |mt|s
LuaLib.lua_rawget(L, 1); // |mt|v // v = mt.s
refId = (int)LuaLib.lua_tonumber(L, -1);
LuaLib.lua_pop(L, 1); // |mt
LuaBindMetatable self = luaState.Bindings.GetMetatableByRefId(refId);
Type baseType = self._type.BaseType;
if (baseType == null)
{
// No base type
LuaLib.lua_pushstring(L, "__base"); // |mt|s
LuaLib.lua_pushboolean(L, false); // |mt|s|b
LuaLib.lua_rawset(L, -3); // |mt // mt.__base = false
}
else
{
LuaBindMetatable baseMetatable = luaState.Bindings.GetMetatable(baseType, self._metatableType);
LuaLib.lua_pushstring(L, "__base"); // |mt|s
baseMetatable.Push(); // |mt|s|basemt
LuaLib.lua_rawset(L, -3); // |mt // mt.__base = basemt
}
return(0);
}
public LuaBindMetatable(LuaState luaState, Type type, LuaBindMetatableType metatableType) : base(luaState)
{
_luaState = luaState;
_type = type;
_metatableType = metatableType;
IntPtr L = luaState.L;
if (luaState.Bindings.MetatableIndexMetamethod == null)
{
LuaLib.luaL_dostring(L, _INDEX_META_METHOD_CODE); // |f
luaState.Bindings.MetatableIndexMetamethod = new LuaFunction(luaState, -1);
LuaLib.lua_pop(L, 1); // |
LuaLib.luaL_dostring(L, _NEWINDEX_META_METHOD_CODE); // |f
luaState.Bindings.MetatableNewIndexMetamethod = new LuaFunction(luaState, -1);
LuaLib.lua_pop(L, 1); // |
}
if (_gcMetamethod == null)
{
_gcMetamethod = new LuaCSFunction(_GC);
_getBaseMetatableMetamethod = new LuaCSFunction(_GetBaseMetatable);
_getMemberMetamethod = new LuaCSFunction(_GetMember);
}
Push(); // |mt
LuaLib.lua_pushstring(L, "__refId"); // |mt|s
LuaLib.lua_pushinteger(L, _RefId); // |mt|s|v
LuaLib.lua_rawset(L, -3); // |mt // mt.__refId = _RefId
LuaLib.lua_pushstring(L, "__index"); // |mt|s
luaState.Bindings.MetatableIndexMetamethod.Push(); // |mt|s|v
LuaLib.lua_rawset(L, -3); // |mt // mt.__index = f
if (!type.IsEnum)
{
LuaLib.lua_pushstring(L, "__newindex"); // |mt|s
luaState.Bindings.MetatableNewIndexMetamethod.Push(); // |mt|s|v
LuaLib.lua_rawset(L, -3); // |mt // mt.__newindex = f
}
LuaLib.lua_pushstring(L, "__gc"); // |mt|s
LuaLib.lua_pushcsfunction(L, _gcMetamethod); // |mt|s|csf
LuaLib.lua_rawset(L, -3); // |mt // mt.__gc = csf
LuaLib.lua_pushstring(L, "__getbase"); // |mt|s
LuaLib.lua_pushcsfunction(L, _getBaseMetatableMetamethod); // |mt|s|csf
LuaLib.lua_rawset(L, -3); // |mt // mt.__getbase = csf
LuaLib.lua_pushstring(L, "__getmember"); // |mt|s
LuaLib.lua_pushcsfunction(L, _getMemberMetamethod); // |mt|s|csf
LuaLib.lua_rawset(L, -3); // |mt // mt.__getmember = csf
LuaLib.lua_pop(L, 1); // |
luaState.Bindings.RegisterMetatableRefId(_RefId, this);
}
public void RawSet(string key, object value)
{
IntPtr L = _LuaState.L;
Push(); // |t
LuaLib.lua_pushstring(L, key); // |t|k
_LuaState.PushObject(value); // |t|k|v
LuaLib.lua_rawset(L, -3); // |t // t.k = v
LuaLib.lua_pop(L, 1); // |
}
public bool CheckType(int index, Type type)
{
if (type == typeof(object))
{
return(true);
}
LuaTypes luaType = LuaLib.lua_type(L, index);
switch (luaType)
{
case LuaTypes.LUA_TBOOLEAN:
return(type == typeof(bool));
case LuaTypes.LUA_TNUMBER:
return(type.IsPrimitive);
case LuaTypes.LUA_TSTRING:
return(type == typeof(string) || type == typeof(char[]) || type == typeof(byte[]));
case LuaTypes.LUA_TTABLE:
{
if (type == typeof(Type))
{
LuaLib.lua_pushstring(L, "__typeName"); // |k
LuaLib.lua_rawget(L, index); // |v
bool ret = !LuaLib.lua_isnil(L, -1);
LuaLib.lua_pop(L, 1); // |
return(ret);
}
return(false);
}
case LuaTypes.LUA_TFUNCTION:
return(false);
case LuaTypes.LUA_TUSERDATA:
{
int objectReference = LuaLib.wutlua_rawuserdata(L, index);
object o;
if (!_objects.TryGetValue(objectReference, out o))
{
return(false);
}
return(type.IsAssignableFrom(o.GetType()));
}
}
return(false);
}
public UnityEngine.Vector2 ToVector2(int index)
{
UnityEngine.Vector2 vector = new UnityEngine.Vector2();
if (LuaLib.lua_type(L, index) == LuaTypes.LUA_TTABLE)
{
LuaLib.lua_rawgeti(L, index, 1); // |x
vector.x = (float)LuaLib.lua_tonumber(L, -1); // |x
LuaLib.lua_rawgeti(L, index, 2); // |x|y
vector.y = (float)LuaLib.lua_tonumber(L, -1); // |x|y
LuaLib.lua_pop(L, 2); // |
}
return(vector);
}
public UnityEngine.Vector4 ToVector4(int index)
{
UnityEngine.Vector4 vector = new UnityEngine.Vector4();
if (LuaLib.lua_type(L, index) == LuaTypes.LUA_TTABLE)
{
LuaLib.lua_rawgeti(L, index, 1); // |x
vector.x = (float)LuaLib.lua_tonumber(L, -1); // |x
LuaLib.lua_rawgeti(L, index, 2); // |x|y
vector.y = (float)LuaLib.lua_tonumber(L, -1); // |x|y
LuaLib.lua_rawgeti(L, index, 3); // |x|y|z
vector.z = (float)LuaLib.lua_tonumber(L, -1); // |x|y|z
LuaLib.lua_rawgeti(L, index, 4); // |x|y|z|w
vector.w = (float)LuaLib.lua_tonumber(L, -1); // |x|y|z|w
LuaLib.lua_pop(L, 4); // |
}
return(vector);
}
public UnityEngine.Quaternion ToQuaternion(int index)
{
UnityEngine.Quaternion quaternion = new UnityEngine.Quaternion();
if (LuaLib.lua_type(L, index) == LuaTypes.LUA_TTABLE)
{
LuaLib.lua_rawgeti(L, index, 1); // |x
quaternion.x = (float)LuaLib.lua_tonumber(L, -1); // |x
LuaLib.lua_rawgeti(L, index, 2); // |x|y
quaternion.y = (float)LuaLib.lua_tonumber(L, -1); // |x|y
LuaLib.lua_rawgeti(L, index, 3); // |x|y|z
quaternion.z = (float)LuaLib.lua_tonumber(L, -1); // |x|y|z
LuaLib.lua_rawgeti(L, index, 4); // |x|y|z|w
quaternion.w = (float)LuaLib.lua_tonumber(L, -1); // |x|y|z|w
LuaLib.lua_pop(L, 4); // |
}
return(quaternion);
}
public UnityEngine.Color ToColor(int index)
{
UnityEngine.Color color = new UnityEngine.Color(0f, 1f, 1f, 1f);
if (LuaLib.lua_type(L, index) == LuaTypes.LUA_TTABLE)
{
LuaLib.lua_rawgeti(L, index, 1); // |r
color.r = (float)LuaLib.lua_tonumber(L, -1); // |r
LuaLib.lua_rawgeti(L, index, 2); // |r|g
color.g = (float)LuaLib.lua_tonumber(L, -1); // |r|g
LuaLib.lua_rawgeti(L, index, 3); // |r|g|b
color.b = (float)LuaLib.lua_tonumber(L, -1); // |r|g|b
LuaLib.lua_rawgeti(L, index, 4); // |r|g|b|a
color.a = (float)LuaLib.lua_tonumber(L, -1); // |r|g|b|a
LuaLib.lua_pop(L, 4); // |
}
return(color);
}
public void RegisterType(Type type)
{
UnityEngine.Debug.Assert(!_typeTables.ContainsKey(type));
IntPtr L = _luaState.L;
LuaTable typeTable = new LuaTable(_luaState);
typeTable.Push(); // |t
LuaLib.lua_pushstring(L, "__typeName"); // |t|sk
LuaLib.lua_pushstring(L, type.ToString()); // |t|sk|sv
LuaLib.lua_rawset(L, -3); // |t // t.__typeName = typeName
LuaBindMetatable metatable = GetMetatable(type, LuaBindMetatableType.Type);
metatable.Push(); // |t|mt
LuaLib.lua_setmetatable(L, -2); // |t // t.metatable = mt
LuaLib.lua_pop(L, 1); // |
_typeNames.Add(type.ToString(), type);
_typeTables[type] = typeTable;
}
// -------------------------------------------------------------------------------------------------------------
// Public interfaces
// -------------------------------------------------------------------------------------------------------------
public object[] DoBuffer(byte[] chunk, string chunkName = "chunk")
{
int oldTop = LuaLib.lua_gettop(L);
if (LuaLib.luaL_loadbuffer(L, chunk, chunk.Length, chunkName) != 0) // |f or |err
{
string error = LuaLib.lua_tostring(L, -1); // |err
LuaLib.lua_settop(L, oldTop); // |
throw new LuaException(error);
}
if (LuaLib.lua_pcall(L, 0, LuaLib.LUA_MULTRET, 0) != 0) // | or |ret1|ret2 or |err
{
string error = LuaLib.lua_tostring(L, -1); // |err
LuaLib.lua_settop(L, oldTop); // |
throw new LuaException(error);
}
int top = LuaLib.lua_gettop(L);
if (top == oldTop)
{
return(null);
}
var objects = new List <object>();
for (int i = oldTop + 1; i <= top; ++i)
{
objects.Add(ToObject(i));
}
LuaLib.lua_pop(L, top - oldTop);
return(objects.ToArray());
}
public object ToObject(int index)
{
LuaTypes luaType = LuaLib.lua_type(L, index);
switch (luaType)
{
case LuaTypes.LUA_TNONE:
case LuaTypes.LUA_TNIL:
{
return(null);
}
case LuaTypes.LUA_TBOOLEAN:
{
return(LuaLib.lua_toboolean(L, index));
}
case LuaTypes.LUA_TNUMBER:
{
return(LuaLib.lua_tonumber(L, index));
}
case LuaTypes.LUA_TSTRING:
{
return(LuaLib.lua_tostring(L, index));
}
case LuaTypes.LUA_TTABLE:
{
LuaValueType valueType = LuaValueType.None;
LuaLib.lua_pushvalue(L, index); // |t
LuaLib.lua_pushstring(L, "__valueType"); // |t|k
LuaLib.lua_rawget(L, -2); // |t|vt
if (!LuaLib.lua_isnil(L, -1))
{
valueType = (LuaValueType)LuaLib.lua_tonumber(L, -1); // |t|vt
}
LuaLib.lua_pop(L, 2); // |
switch (valueType)
{
case LuaValueType.None:
{
return(ToTable(index));
}
case LuaValueType.Color:
{
return(ToColor(index));
}
case LuaValueType.Quaternion:
{
return(ToQuaternion(index));
}
case LuaValueType.Vector2:
{
return(ToVector2(index));
}
case LuaValueType.Vector3:
{
return(ToVector3(index));
}
case LuaValueType.Vector4:
{
return(ToVector4(index));
}
default:
{
return(null);
}
}
}
case LuaTypes.LUA_TFUNCTION:
{
return(ToFunction(index));
}
case LuaTypes.LUA_TUSERDATA:
{
return(ToCSObject(index));
}
default:
{
return(null);
}
}
}
