private bool Eq(LuaValue a, LuaValue b, LuaState ls)
{
if (a.IsNil())
{
return(b.IsNil());
}
else if (a.IsBool())
{
return(b.IsBool() && a.GetBoolValue() == b.GetBoolValue());
}
else if (a.IsString())
{
return(b.IsString() && a.GetStrValue() == b.GetStrValue());
}
else if (a.IsInt())
{
if (b.IsInt())
{
return(a.GetIntValue() == b.GetIntValue());
}
else if (b.IsFloat())
{
return(a.GetIntValue() == b.GetFloatValue());
}
else
{
return(false);
}
}
else if (a.IsFloat())
{
if (b.IsFloat())
{
return(a.GetFloatValue() == b.GetFloatValue());
}
else if (b.IsInt())
{
return(a.GetFloatValue() == b.GetIntValue());
}
else
{
return(false);
}
}
else if (a.IsTable() &&
b.IsTable() &&
a.GetTableValue() != b.GetTableValue() && ls != null)
{
if (LuaValue.CallMetaMethod(a, b, "__eq", ls, out var metaMethodRet))
{
return(metaMethodRet.ToBoolean());
}
return(a.GetValue() == b.GetValue());
}
else
{
return(a.GetValue() == b.GetValue());
}
}
private void InnerSetTable(LuaValue t, LuaValue k, LuaValue v, bool raw)
{
if (t.IsTable())
{
var table = t.GetTableValue();
if (raw || !table.Get(k).IsNil() || !table.HasMetaField("__newindex"))
{
table.Put(k, v);
return;
}
}
if (!raw)
{
var mf = LuaValue.GetMetaField(t, "__newindex", this);
if (mf != null)
{
if (mf.IsTable())
{
InnerSetTable(mf, k, v, false);
}
else if (mf.IsFunction())
{
_stack.Push(mf);
_stack.Push(t);
_stack.Push(k);
_stack.Push(v);
Call(3, 0);
return;
}
}
}
Debug.Panic("not a table!");
}
public static LuaTable GetMetaTable(LuaValue val, LuaState ls)
{
if (val.IsTable())
{
return((val.GetTableValue()).MetaTable);
}
var key = $"_MT{val.Type.GetParentType()}";
var mt = ls.Registry.Get(key);
return(mt?.GetTableValue());
}
public static void SetMetaTable(LuaValue val, LuaTable mt, LuaState ls)
{
if (val.IsTable())
{
var lt = val.GetTableValue();
lt.MetaTable = mt;
return;
}
var key = $"_MT{val.Type.GetParentType()}";
ls.Registry.Put(key, mt);
}
private ELuaType InnerGetTable(LuaValue t, LuaValue k, bool raw)
{
if (t.IsTable())
{
var table = t.GetTableValue();
var v = table.Get(k);
if (raw || !v.IsNil() || !table.HasMetaField("__index"))
{
_stack.Push(v);
return(v.Type);
}
}
if (!raw)
{
var mf = LuaValue.GetMetaField(t, "__index", this);
if (mf != null)
{
if (mf.IsTable())
{
return(InnerGetTable(mf, k, false));
}
if (mf.IsFunction())
{
_stack.Push(mf);
_stack.Push(t);
_stack.Push(k);
Call(2, 1);
var v = _stack.Get(-1);
return(v.Type);
}
}
}
Debug.Panic("index error!");
return(ELuaType.None);
}