Function MetaField

auxiliary.go:82–94

MetaField pushes onto the stack the field event from the metatable of the object at index. If the object does not have a metatable, or if the metatable does not have this field, returns false and pushes nothing.

(l *State, index int, event string)

// object at index. If the object does not have a metatable, or if the
// metatable does not have this field, returns false and pushes nothing.
func MetaField(l *State, index int, event string) bool {
	if !l.MetaTable(index) {
		return false
	}
	l.PushString(event)
	l.RawGet(-2)
	if l.IsNil(-1) {
		l.Pop(2) // remove metatable and metafield
		return false
	}
	l.Remove(-2) // remove only metatable
	return true
}

// CallMeta calls a metamethod.
//