Method metatable

state.go:975–999

(lvalue LValue, rawget bool)

}

func (ls *LState) metatable(lvalue LValue, rawget bool) LValue {
	var metatable LValue = LNil
	switch obj := lvalue.(type) {
	case *LTable:
		metatable = obj.Metatable
	case *LUserData:
		metatable = obj.Metatable
	default:
		if table, ok := ls.G.builtinMts[int(obj.Type())]; ok {
			metatable = table
		}
	}

	if !rawget && metatable != LNil {
		oldmt := metatable
		if tb, ok := metatable.(*LTable); ok {
			metatable = tb.RawGetString("__metatable")
			if metatable == LNil {
				metatable = oldmt
			}
		}
	}

	return metatable
}

func (ls *LState) metaOp1(lvalue LValue, event string) LValue {
	if mt := ls.metatable(lvalue, true); mt != LNil {