Enum ResumeError 

pub enum ResumeError {
    NotFound(SessionId),
    NotPaused {
        actual_tag: ExecutionStateTag,
    },
    AlreadyCancelled,
    FeedError(String),
}

Error returned by crate::execution::ExecutionService::resume.

Note on #[from] and serde compatibility

FeedError (from crates/algocline-core/src/state.rs) does not derive serde::Serialize + serde::Deserialize, so we cannot use #[from] FeedError directly on a serde-enabled enum. Instead, the FeedError variant stores the display string, and a manual From<FeedError> impl converts it.

Subtask 2 may add From<SessionError> to this enum; if a second #[from] conversion causes a trait impl conflict (K-79), the later conversion must use map_err instead.

Variants

NotFound(SessionId)

No session with the given id exists in the registry.

NotPaused

The session exists but is not in the Paused state.

Fields

actual_tag: ExecutionStateTag

The state the session is actually in.

AlreadyCancelled

The session is already cancelled; resuming is a no-op that returns this error so callers are explicitly informed.

FeedError(String)

The feed operation on the underlying session failed.

The original FeedError message is preserved as a String because FeedError does not implement serde::Serialize + serde::Deserialize.

Trait Implementations

impl Debug for ResumeError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ResumeError

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ResumeError

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

Formats the value using the given formatter.

impl Error for ResumeError

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<FeedError> for ResumeError

fn from(e: FeedError) -> Self

Converts a FeedError into a ResumeError::FeedError by formatting the error message. This preserves the error chain for callers while remaining serde-compatible.

impl Serialize for ResumeError

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

where __S: Serializer,

Serialize this value into the given Serde serializer.