Enum DefaultSubType 

pub enum DefaultSubType {
    Linear,
    Inverse,
}

Contract settlement type for derivatives

Determines whether contracts are settled in quote currency (linear/USDT-margined) or base currency (inverse/coin-margined).

Variants

• Linear: Settled in quote currency (USDT-margined)
• Inverse: Settled in base currency (coin-margined)

Example

use ccxt_core::types::default_type::DefaultSubType;
use std::str::FromStr;

let linear = DefaultSubType::default();
assert_eq!(linear, DefaultSubType::Linear);

let inverse = DefaultSubType::from_str("inverse").unwrap();
assert_eq!(inverse.to_string(), "inverse");

Variants

Linear

Linear contract - settled in quote currency (USDT-margined)

Inverse

Inverse contract - settled in base currency (coin-margined)

Implementations

impl DefaultSubType

pub fn as_str(&self) -> &'static str

Returns the string representation (lowercase)

Example

use ccxt_core::types::default_type::DefaultSubType;

assert_eq!(DefaultSubType::Linear.as_str(), "linear");
assert_eq!(DefaultSubType::Inverse.as_str(), "inverse");

pub fn from_symbol(symbol: &ParsedSymbol) -> Option<DefaultSubType>

Infer sub-type from a parsed symbol

Returns Some(Linear) if settle equals quote currency, Some(Inverse) if settle equals base currency, or None if no settle currency is present (spot market).

Example

use ccxt_core::types::default_type::DefaultSubType;
use ccxt_core::types::symbol::ParsedSymbol;

// Linear swap (USDT-margined)
let linear_symbol = ParsedSymbol::linear_swap("BTC".to_string(), "USDT".to_string());
assert_eq!(DefaultSubType::from_symbol(&linear_symbol), Some(DefaultSubType::Linear));

// Inverse swap (coin-margined)
let inverse_symbol = ParsedSymbol::inverse_swap("BTC".to_string(), "USD".to_string());
assert_eq!(DefaultSubType::from_symbol(&inverse_symbol), Some(DefaultSubType::Inverse));

// Spot (no sub-type)
let spot_symbol = ParsedSymbol::spot("BTC".to_string(), "USDT".to_string());
assert_eq!(DefaultSubType::from_symbol(&spot_symbol), None);

Trait Implementations

impl Clone for DefaultSubType

fn clone(&self) -> DefaultSubType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DefaultSubType

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

Formats the value using the given formatter.

impl Default for DefaultSubType

fn default() -> DefaultSubType

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DefaultSubType

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DefaultSubType

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

Formats the value using the given formatter.

impl FromStr for DefaultSubType

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

Parse a DefaultSubType from a string (case-insensitive)

Example

use ccxt_core::types::default_type::DefaultSubType;
use std::str::FromStr;

assert_eq!(DefaultSubType::from_str("linear").unwrap(), DefaultSubType::Linear);
assert_eq!(DefaultSubType::from_str("INVERSE").unwrap(), DefaultSubType::Inverse);

assert!(DefaultSubType::from_str("invalid").is_err());

type Err = DefaultTypeError

The associated error which can be returned from parsing.

impl Hash for DefaultSubType

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 PartialEq for DefaultSubType

fn eq(&self, other: &DefaultSubType) -> 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 Serialize for DefaultSubType

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 Copy for DefaultSubType

impl Eq for DefaultSubType

impl StructuralPartialEq for DefaultSubType