Struct spl_token_2022::extension::transfer_fee::TransferFeeConfig

#[repr(C)]
pub struct TransferFeeConfig {
    pub transfer_fee_config_authority: OptionalNonZeroPubkey,
    pub withdraw_withheld_authority: OptionalNonZeroPubkey,
    pub withheld_amount: PodU64,
    pub older_transfer_fee: TransferFee,
    pub newer_transfer_fee: TransferFee,
}

Transfer fee extension data for mints.

Fields

transfer_fee_config_authority: OptionalNonZeroPubkey

Optional authority to set the fee

withdraw_withheld_authority: OptionalNonZeroPubkey

Withdraw from mint instructions must be signed by this key

withheld_amount: PodU64

Withheld transfer fee tokens that have been moved to the mint for withdrawal

older_transfer_fee: TransferFee

Older transfer fee, used if the current epoch < new_transfer_fee.epoch

newer_transfer_fee: TransferFee

Newer transfer fee, used if the current epoch >= new_transfer_fee.epoch

Implementations

impl TransferFeeConfig

pub fn get_epoch_fee(&self, epoch: Epoch) -> &TransferFee

Get the fee for the given epoch

pub fn calculate_epoch_fee( &self, epoch: Epoch, pre_fee_amount: u64, ) -> Option<u64>

Calculate the fee for the given epoch and input amount

pub fn calculate_inverse_epoch_fee( &self, epoch: Epoch, post_fee_amount: u64, ) -> Option<u64>

Calculate the fee for the given epoch and output amount

Trait Implementations

impl Clone for TransferFeeConfig

fn clone(&self) -> TransferFeeConfig

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TransferFeeConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TransferFeeConfig

fn default() -> TransferFeeConfig

Returns the “default value” for a type.

impl Extension for TransferFeeConfig

const TYPE: ExtensionType = ExtensionType::TransferFeeConfig

Associated extension type enum, checked at the start of TLV entries

impl PartialEq for TransferFeeConfig

fn eq(&self, other: &TransferFeeConfig) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Zeroable for TransferFeeConfig

fn zeroed() -> Self

Calls zeroed.

impl Copy for TransferFeeConfig

impl Pod for TransferFeeConfig

impl StructuralPartialEq for TransferFeeConfig