Trait frame_support::traits::tokens::fungibles::Destroy

pub trait Destroy<AccountId>: Inspect<AccountId> {
    type DestroyWitness;
    fn get_destroy_witness(id: &Self::AssetId) -> Option<Self::DestroyWitness>;
    fn destroy(
        id: Self::AssetId, 
        witness: Self::DestroyWitness, 
        maybe_check_owner: Option<AccountId>
    ) -> Result<Self::DestroyWitness, DispatchError>;
}

Trait for providing the ability to destroy existing fungible assets.

Associated Types

type DestroyWitness

The witness data needed to destroy an asset.

Required methods

fn get_destroy_witness(id: &Self::AssetId) -> Option<Self::DestroyWitness>

Provide the appropriate witness data needed to destroy an asset.

fn destroy(
    id: Self::AssetId,
    witness: Self::DestroyWitness,
    maybe_check_owner: Option<AccountId>
) -> Result<Self::DestroyWitness, DispatchError>

Destroy an existing fungible asset.

• id: The AssetId to be destroyed.
• witness: Any witness data that needs to be provided to complete the operation successfully.
• maybe_check_owner: An optional account id that can be used to authorize the destroy command. If not provided, we will not do any authorization checks before destroying the asset.

If successful, this function will return the actual witness data from the destroyed asset. This may be different than the witness data provided, and can be used to refund weight.

Implementors