Struct Cost 

pub struct Cost(pub Decimal);

Cost type (zero-cost wrapper).

Represents the cost or total value of a trade, typically the result of price × amount. Provides type safety via the newtype pattern.

Tuple Fields

0: Decimal

Implementations

impl Cost

pub fn new(value: Decimal) -> Cost

Creates a new cost instance.

Examples

use ccxt_core::types::financial::Cost;
use rust_decimal_macros::dec;

let cost = Cost::new(dec!(5000.0));

pub fn as_decimal(&self) -> Decimal

Returns the inner Decimal value.

pub fn parse(s: &str) -> Result<Cost, Error>

Parses a cost from a string.

Errors

Returns an error if the string cannot be parsed as a valid Decimal.

pub fn is_zero(&self) -> bool

Returns true if the cost is zero.

pub fn is_positive(&self) -> bool

Returns true if the cost is positive (greater than zero).

impl Cost

pub const ZERO: Cost

Zero cost constant.

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

Checks if the cost is greater than the given Decimal value.

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

Checks if the cost is less than the given Decimal value.

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

Checks if the cost is greater than or equal to the given Decimal value.

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

Checks if the cost is less than or equal to the given Decimal value.

Trait Implementations

impl Add for Cost

Cost + Cost = Cost

type Output = Cost

The resulting type after applying the + operator.

fn add(self, rhs: Cost) -> <Cost as Add>::Output

Performs the + operation.

impl Clone for Cost

fn clone(&self) -> Cost

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Cost

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

Formats the value using the given formatter.

impl Default for Cost

fn default() -> Cost

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Cost

fn deserialize<__D>( __deserializer: __D, ) -> Result<Cost, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Cost

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

Formats the value using the given formatter.

impl Div<Amount> for Cost

Cost ÷ Amount = Price

Derives price from total cost and amount.

type Output = Price

The resulting type after applying the / operator.

fn div(self, rhs: Amount) -> <Cost as Div<Amount>>::Output

Performs the / operation.

impl Div<Decimal> for Cost

Cost ÷ Decimal = Cost (scalar division)

type Output = Cost

The resulting type after applying the / operator.

fn div(self, rhs: Decimal) -> <Cost as Div<Decimal>>::Output

Performs the / operation.

impl Div<Price> for Cost

Cost ÷ Price = Amount

Derives amount from total cost and price.

type Output = Amount

The resulting type after applying the / operator.

fn div(self, rhs: Price) -> <Cost as Div<Price>>::Output

Performs the / operation.

impl Div for Cost

Divides two Cost values, yielding a ratio as Decimal.

type Output = Decimal

The resulting type after applying the / operator.

fn div(self, rhs: Cost) -> <Cost as Div>::Output

Performs the / operation.

impl From<Cost> for Decimal

fn from(cost: Cost) -> Decimal

Converts to this type from the input type.

impl From<Decimal> for Cost

fn from(value: Decimal) -> Cost

Converts to this type from the input type.

impl FromStr for Cost

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Cost, <Cost as FromStr>::Err>

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

impl Hash for Cost

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

where __H: Hasher,

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 Mul<Cost> for Decimal

Decimal × Cost = Cost (scalar multiplication commutativity)

type Output = Cost

The resulting type after applying the * operator.

fn mul(self, rhs: Cost) -> <Decimal as Mul<Cost>>::Output

Performs the * operation.

impl Mul<Decimal> for Cost

Cost × Decimal = Cost (scalar multiplication)

type Output = Cost

The resulting type after applying the * operator.

fn mul(self, rhs: Decimal) -> <Cost as Mul<Decimal>>::Output

Performs the * operation.

impl Ord for Cost

fn cmp(&self, other: &Cost) -> 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 Cost

fn eq(&self, other: &Cost) -> 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 Cost

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

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

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

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

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

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

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

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

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

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

impl Serialize for Cost

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub for Cost

Cost - Cost = Cost

type Output = Cost

The resulting type after applying the - operator.

fn sub(self, rhs: Cost) -> <Cost as Sub>::Output

Performs the - operation.

impl Copy for Cost

impl Eq for Cost

impl StructuralPartialEq for Cost