Enum SettlementError 

#[non_exhaustive]
pub enum SettlementError {
    UnsupportedOptionType {
        option_type: OptionType,
    },
    MissingPrice {
        settlement_type: SettlementType,
        event: SettlementEvent,
    },
    PriceAfterCutoff {
        observed_at: DateTime<Utc>,
        cutoff: DateTime<Utc>,
    },
    EventSideMismatch {
        event: SettlementEvent,
        side: Side,
    },
    ArithmeticOverflow {
        operation: &'static str,
        reason: String,
    },
}

Reasons why settlement_obligation cannot compute what an option position owes or receives.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnsupportedOptionType

The contract’s option type has no settlement rule. Only European and American options are supported.

Fields

option_type: OptionType

The rejected option type.

MissingPrice

The event needs a settlement price and none was supplied.

An expiry needs one to decide moneyness and a cash settlement needs one to size its cashflow. A physical explicit exercise or assignment needs none.

Fields

settlement_type: SettlementType

The settlement type of the event.

event: SettlementEvent

The event that needs the price.

PriceAfterCutoff

The settlement price was observed after the cutoff.

Fields

observed_at: DateTime<Utc>

When the price was observed.

cutoff: DateTime<Utc>

The latest instant a price may be observed at.

EventSideMismatch

The event cannot happen to a position on this side: only a long position exercises and only a short position is assigned.

Fields

event: SettlementEvent

The requested event.

side: Side

The side of the position.

ArithmeticOverflow

A figure of the obligation left the representable range.

Fields

operation: &'static str

The computation that overflowed, for example "physical cash".

reason: String

The underlying arithmetic error, with its operands.

Trait Implementations

impl Clone for SettlementError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SettlementError

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

Formats the value using the given formatter.

impl Display for SettlementError

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

Formats the value using the given formatter.

impl Eq for SettlementError

impl Error for SettlementError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for SettlementError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SettlementError