I would like for a resource to have a function where at the end of the function it self destructs by calling destroy self
pub resource SelfDestructingConsumable {
pub fun consume() {
// do some stuff
destroy self
}
}
The type checker complains that this is illegal
Cannot destroy
self
I'm wondering if anyone has any creative ways around this? I have a feeling that maybe it should be wrapped in some sort of ConsumableCollection
or ConsumableManager
like so
pub resource ConsumableCollection {
pub let consumables: @{UInt64: SelfDestructingConsumable}
pub fun consume(id: UInt64) {
let consumable <- consumables.remove(id)
// do some stuff
destroy consumable
}
}
But i feel that it makes more sense to be able to just use a consumable and have it independently self destruct.
I'd like to get some thoughts or ideas on a better way to do this.
You do need to create a wrapper around it in order to destroy like you have suggested. Some use cases also do this in a transaction itself. It depend upon your usecase, would also strongly suggest emitting an Burned event or something when you do so as it is a good practise to always emit events on state changes.