Enum SimError 

#[non_exhaustive]
pub enum SimError {
    InvalidConfig {
        field: &'static str,
        reason: String,
    },
    EntityNotFound(EntityId),
    StopNotFound(StopId),
    GroupNotFound(GroupId),
    InvalidState {
        entity: EntityId,
        reason: String,
    },
    LineNotFound(EntityId),
    NoRoute {
        origin: EntityId,
        destination: EntityId,
        origin_groups: Vec<GroupId>,
        destination_groups: Vec<GroupId>,
    },
    AmbiguousRoute {
        origin: EntityId,
        destination: EntityId,
        groups: Vec<GroupId>,
    },
}

Errors that can occur during simulation setup or operation.

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.

InvalidConfig

Configuration is invalid.

Fields

field: &'static str

Which config field is problematic.

reason: String

Human-readable explanation.

EntityNotFound(EntityId)

A referenced entity does not exist.

StopNotFound(StopId)

A referenced stop ID does not exist in the config.

GroupNotFound(GroupId)

A referenced group does not exist.

InvalidState

An operation was attempted on an entity in an invalid state.

Fields

entity: EntityId

The entity in the wrong state.

reason: String

Human-readable explanation.

LineNotFound(EntityId)

A line entity was not found.

NoRoute

No route exists between origin and destination across any group.

Fields

origin: EntityId

The origin stop.

destination: EntityId

The destination stop.

origin_groups: Vec<GroupId>

Groups that serve the origin (if any).

destination_groups: Vec<GroupId>

Groups that serve the destination (if any).

AmbiguousRoute

Multiple groups serve both origin and destination — caller must specify.

Fields

origin: EntityId

The origin stop.

destination: EntityId

The destination stop.

groups: Vec<GroupId>

The groups that serve both stops.

Trait Implementations

impl Clone for SimError

fn clone(&self) -> SimError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SimError

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

Formats the value using the given formatter.

impl Display for SimError

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

Formats the value using the given formatter.

impl Error for SimError

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 From<EntityId> for SimError

fn from(id: EntityId) -> Self

Converts to this type from the input type.

impl From<GroupId> for SimError

fn from(id: GroupId) -> Self

Converts to this type from the input type.

impl From<StopId> for SimError

fn from(id: StopId) -> Self

Converts to this type from the input type.

impl PartialEq for SimError

fn eq(&self, other: &SimError) -> 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 Eq for SimError

impl StructuralPartialEq for SimError