Struct Fee 

#[repr(C)]
pub struct Fee {
    pub denominator: u64,
    pub numerator: u64,
}

Fee rate as a ratio, minted on UpdateStakePoolBalance as a proportion of the rewards If either the numerator or the denominator is 0, the fee is considered to be 0

Fields

denominator: u64

denominator of the fee ratio

numerator: u64

numerator of the fee ratio

Implementations

impl Fee

pub fn apply(&self, amt: u64) -> Option<u128>

Applies the Fee’s rates to a given amount, amt returning the amount to be subtracted from it as fees (0 if denominator is 0 or amt is 0), or None if overflow occurs

pub fn check_withdrawal( &self, old_withdrawal_fee: &Fee, ) -> Result<(), StakePoolError>

Withdrawal fees have some additional restrictions, this function checks if those are met, returning an error if not.

Trait Implementations

impl BorshDeserialize for Fee

fn deserialize_reader<__R: Read>(reader: &mut __R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSchema for Fee

fn declaration() -> Declaration

Get the name of the type without brackets.

fn add_definitions_recursively( definitions: &mut BTreeMap<Declaration, Definition>, )

Recursively, using DFS, add type definitions required for this type. Type definition partially explains how to serialize/deserialize a type.

impl BorshSerialize for Fee

fn serialize<__W: Write>(&self, writer: &mut __W) -> Result<(), Error>

impl Clone for Fee

fn clone(&self) -> Fee

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Fee

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

Formats the value using the given formatter.

impl Default for Fee

fn default() -> Fee

Returns the “default value” for a type.

impl Display for Fee

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

Formats the value using the given formatter.

impl PartialEq for Fee

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for Fee

impl StructuralPartialEq for Fee