Enum SizeHint 

pub enum SizeHint {
    MarginFraction(f64),
    NotionalUsd(f64),
    Quantity(Volume),
    Default,
}

How large the brain wants the next order to be. The risk layer can honour, scale down, or reject this hint.

Variants

MarginFraction(f64)

Use a fraction of available margin (0.0..=1.0).

NotionalUsd(f64)

Target a specific notional in quote currency.

Quantity(Volume)

Target a specific number of contracts or base units.

Default

Defer to the risk layer’s default sizing entirely.

Trait Implementations

impl Clone for SizeHint

fn clone(&self) -> SizeHint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SizeHint

impl Debug for SizeHint

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

Formats the value using the given formatter.

impl Default for SizeHint

fn default() -> SizeHint

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SizeHint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SizeHint

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.