Struct CurrencyDefinition 

pub struct CurrencyDefinition { /* private fields */ }

How a currency divides into its base unit – reference data, published in versions with the protocol.

subdivisions lists, from the unit down, how many of the next smaller stage one stage contains: [100] for EUR (euro, cent), [] for JPY, [17, 29] for Galleons (Galleon, Sickle, Knut), [1000000000, 1000000000] for x-eth (ether, gwei, wei). Stage n is the unit after n subdivisions; stage 0 is the unit itself, the last stage the base unit. Names are not part of a definition: translation data names stage n by the key <code>/<n> (EUR/0 euro, EUR/1 cent).

Implementations

impl CurrencyDefinition

pub fn new( code: Currency, subdivisions: Vec<u64>, ) -> Result<Self, DefinitionError>

A definition, checked: every subdivision between 2 and 2^53 − 1, at most 10^38 base units per unit, and an ISO 4217 currency divided at most once, by a power of ten.

pub fn code(&self) -> &Currency

The code.

pub fn subdivisions(&self) -> &[u64]

How many of the next smaller stage each stage contains, from the unit down.

pub fn base_units_per_unit(&self) -> Option<u128>

How many base units make one unit: 100 for EUR, 17 · 29 = 493 for Galleons in Knuts; None above 10^38.

pub fn decimals(&self) -> Option<u32>

The number of decimal places if one unit is a power of ten base units – Some(2) for EUR, Some(0) for JPY, None for Galleons. Only then does money convert to and from decimal numbers.

Trait Implementations

impl Clone for CurrencyDefinition

fn clone(&self) -> CurrencyDefinition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CurrencyDefinition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CurrencyDefinition

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for CurrencyDefinition

impl Hash for CurrencyDefinition

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Object for CurrencyDefinition

const TYPE: &'static str = "currency"

The type, written as "type" when the object stands on its own.

impl PartialEq for CurrencyDefinition

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for CurrencyDefinition

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for CurrencyDefinition