Module spl_token_2022::extension

Extensions available to token mints and accounts

Modules

confidential_transfer

Confidential Transfer extension

default_account_state

Default Account State extension

immutable_owner

Immutable Owner extension

memo_transfer

Memo Transfer extension

mint_close_authority

Mint Close Authority extension

reallocate

Utility to reallocate token accounts

transfer_fee

Transfer Fee extension

Structs

Length

Length in TLV structure

StateWithExtensions

Encapsulates immutable base state data (mint or account) with possible extensions

StateWithExtensionsMut

Encapsulates mutable base state data (mint or account) with possible extensions

StateWithExtensionsOwned

Encapsulates owned immutable base state data (mint or account) with possible extensions

Enums

AccountType

Different kinds of accounts. Note that Mint, Account, and Multisig types are determined exclusively by the size of the account, and are not included in the account data. AccountType is only included if extensions have been initialized.

ExtensionType

Extensions that can be applied to mints or accounts. Mint extensions must only be applied to mint accounts, and account extensions must only be applied to token holding accounts.

Traits

BaseState

Trait for base states, specifying the associated enum

Extension

Trait to be implemented by all extension states, specifying which extension and account type they are associated with

Functions

set_account_type

If AccountType is uninitialized, set it to the BaseState’s ACCOUNT_TYPE; if AccountType is already set, check is set correctly for BaseState This method assumes that the base_data has already been packed with data of the desired type.