Struct Money 

#[repr(C)]
pub struct Money {
    pub raw: MoneyRaw,
    pub currency: Currency,
}

Represents an amount of money in a specified currency denomination.

• MONEY_MAX - Maximum representable money amount
• MONEY_MIN - Minimum representable money amount

Fields

raw: MoneyRaw

Represents the raw fixed-point amount, with currency.precision defining the number of decimal places.

currency: Currency

The currency denomination associated with the monetary amount.

Implementations

impl Money

pub fn new_checked(amount: f64, currency: Currency) -> Result<Self>

Creates a new Money instance with correctness checking.

Errors

Returns an error if amount is invalid outside the representable range [MONEY_MIN, MONEY_MAX].

Notes

PyO3 requires a Result type for proper error handling and stacktrace printing in Python.

pub fn new(amount: f64, currency: Currency) -> Self

Creates a new Money instance.

Panics

Panics if a correctness check fails. See Money::new_checked for more details.

pub fn from_raw(raw: MoneyRaw, currency: Currency) -> Self

Creates a new Money instance from the given raw fixed-point value and the specified currency.

Panics

Panics if raw is outside the representable range [MONEY_RAW_MIN, MONEY_RAW_MAX]. Panics if currency.precision exceeds FIXED_PRECISION.

pub fn zero(currency: Currency) -> Self

Creates a new Money instance with a value of zero with the given Currency.

Panics

Panics if a correctness check fails. See Money::new_checked for more details.

pub fn is_zero(&self) -> bool

Returns true if the value of this instance is zero.

pub fn as_f64(&self) -> f64

Returns the value of this instance as an f64.

Panics

Panics if precision is beyond MAX_FLOAT_PRECISION (16).

pub fn as_decimal(&self) -> Decimal

Returns the value of this instance as a Decimal.

pub fn to_formatted_string(&self) -> String

Returns a formatted string representation of this instance.

pub fn from_decimal(decimal: Decimal, currency: Currency) -> Result<Self>

Creates a new Money from a Decimal value with specified currency.

This method provides more reliable parsing by using Decimal arithmetic to avoid floating-point precision issues during conversion.

Errors

Returns an error if:

• The decimal value cannot be converted to the raw representation.
• Overflow occurs during scaling.

impl Money

pub fn from_wei<U>(raw_wei: U, currency: Currency) -> Self

where U: Into<U256>,

Creates a new Money instance from raw wei value with 18-decimal precision.

This method is specifically designed for DeFi applications where values are represented in wei (the smallest unit of Ether, 1 ETH = 10^18 wei).

Panics

Panics if the raw wei value exceeds 128-bit range.

Examples

use nautilus_model::types::{Money, Currency};
use nautilus_model::enums::CurrencyType;
use alloy_primitives::U256;
use rust_decimal_macros::dec;

let eth = Currency::new("ETH", 18, 0, "Ethereum", CurrencyType::Crypto);
let money = Money::from_wei(U256::from(1_000_000_000_000_000_000_u64), eth); // 1 ETH
assert_eq!(money.as_decimal(), dec!(1.0));

pub fn to_wei(&self) -> U256

Converts this Money instance to raw wei value.

Only valid for prices with precision 18. For other precisions convert to precision 18 first.

Returns

The raw wei value as a U256.

Examples

use nautilus_model::types::{Money, Currency};
use nautilus_model::enums::CurrencyType;
use alloy_primitives::U256;

let eth = Currency::new("ETH", 18, 0, "Ethereum", CurrencyType::Crypto);
// Construct via raw wei to ensure correct 18-dec precision.
let money = Money::from_wei(U256::from(1_000_000_000_000_000_000_u64), eth); // 1 ETH
let wei_value = money.to_wei();
assert_eq!(wei_value, U256::from(1_000_000_000_000_000_000_u64));

Trait Implementations

impl Add<f64> for Money

type Output = f64

The resulting type after applying the + operator.

fn add(self, rhs: f64) -> Self::Output

Performs the + operation.

impl Add for Money

type Output = Money

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self::Output

Performs the + operation.

impl AddAssign for Money

fn add_assign(&mut self, other: Self)

Performs the += operation.

impl Clone for Money

fn clone(&self) -> Money

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Money

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Money

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Money

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

Formats the value using the given formatter.

impl Div<f64> for Money

type Output = f64

The resulting type after applying the / operator.

fn div(self, rhs: f64) -> Self::Output

Performs the / operation.

impl From<&Money> for f64

fn from(money: &Money) -> Self

Converts to this type from the input type.

impl From<Money> for f64

fn from(money: Money) -> Self

Converts to this type from the input type.

impl<T: AsRef<str>> From<T> for Money

fn from(value: T) -> Self

Converts to this type from the input type.

impl FromStr for Money

type Err = String

The associated error which can be returned from parsing.

fn from_str(value: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for Money

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<'py> IntoPyObject<'py> for Money

type Target = Money

The Python output type

type Output = Bound<'py, <Money as IntoPyObject<'py>>::Target>

The smart pointer type to use.

type Error = PyErr

The type returned in the event of a conversion error.

fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.

impl Mul<f64> for Money

type Output = f64

The resulting type after applying the * operator.

fn mul(self, rhs: f64) -> Self::Output

Performs the * operation.

impl Neg for Money

type Output = Money

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl Ord for Money

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Money

fn eq(&self, other: &Self) -> 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 PartialOrd for Money

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Self) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Self) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Self) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Self) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PyClass for Money

type Frozen = True

Whether the pyclass is frozen.

impl PyClassImpl for Money

const IS_BASETYPE: bool = false

#[pyclass(subclass)]

const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]

const IS_MAPPING: bool = false

#[pyclass(mapping)]

const IS_SEQUENCE: bool = false

#[pyclass(sequence)]

const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]

const RAW_DOC: &'static CStr = /// Represents an amount of money in a specified currency denomination. /// /// - [`MONEY_MAX`] - Maximum representable money amount /// - [`MONEY_MIN`] - Minimum representable money amount

Docstring for the class provided on the struct or enum.

const DOC: &'static CStr

Fully rendered class doc, including the text_signature if a constructor is defined.

type BaseType = PyAny

Base class

type ThreadChecker = SendablePyClass<Money>

This handles following two situations:

type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::ImmutableChild

Immutable or mutable

type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.

type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.

type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.

fn items_iter() -> PyClassItemsIter

fn lazy_type_object() -> &'static LazyTypeObject<Self>

fn dict_offset() -> Option<isize>

fn weaklist_offset() -> Option<isize>

impl PyClassNewTextSignature for Money

const TEXT_SIGNATURE: &'static str = "(amount, currency)"

impl PyClass__add__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __add__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__floordiv__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __floordiv__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__mod__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __mod__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__mul__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __mul__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__radd__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __radd__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__rfloordiv__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __rfloordiv__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__rmod__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __rmod__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__rmul__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __rmul__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__rsub__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __rsub__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__rtruediv__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __rtruediv__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__sub__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __sub__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__truediv__SlotFragment<Money> for PyClassImplCollector<Money>

unsafe fn __truediv__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl<'a, 'holder, 'py> PyFunctionArgument<'a, 'holder, 'py, false> for &'holder Money

type Holder = Option<PyClassGuard<'a, Money>>

fn extract( obj: &'a Bound<'py, PyAny>, holder: &'holder mut Self::Holder, ) -> PyResult<Self>

impl PyMethods<Money> for PyClassImplCollector<Money>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for Money

const NAME: &'static str = "Money"

Class name.

const MODULE: Option<&'static str>

Module name, if any.

fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.

fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.

fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.

fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.

impl Serialize for Money

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub<f64> for Money

type Output = f64

The resulting type after applying the - operator.

fn sub(self, rhs: f64) -> Self::Output

Performs the - operation.

impl Sub for Money

type Output = Money

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self::Output

Performs the - operation.

impl SubAssign for Money

fn sub_assign(&mut self, other: Self)

Performs the -= operation.

impl Copy for Money

impl DerefToPyAny for Money

impl Eq for Money