Module transfer_fee 

Reads the transfer fee of a Token-2022 mint from raw account data, for the math::amm quotes. Cache a TransferFeeConfig only while its transfer_fee_config_authority is None.

Structs

TransferFee

Transfer fee information

TransferFeeConfig

Transfer fee extension data for mints.

Functions

extension

Reads the mint extension V.

mint_extensions

Unpacks a mint and its extensions. Ok(None) for an SPL Token mint. Fails with ProgramError::IncorrectProgramId if no token program owns the mint.

mint_fee

mint_fee_at_epoch

The transfer fee of a mint at epoch. Ok(None) only when the mint has no TransferFeeConfig. A 0 bps config gives Some.