Enum EpicError 

pub enum EpicError {
    UnknownEpic {
        reference: String,
    },
    UnknownIssue {
        selector: u32,
    },
    DuplicateName {
        name: String,
    },
    InvalidDates {
        detail: String,
    },
    InvalidWeight {
        value: i64,
    },
    InvalidReference {
        field: &'static str,
        value: String,
    },
    SelfParent {
        epic: EpicId,
    },
    Cycle {
        epic: EpicId,
        path: Vec<EpicId>,
    },
}

Why an epic operation was refused.

The variants map one-to-one onto EpicDiagnosticKind and carry the contract’s names (contracts/epic-service.md §1).

Variants

UnknownEpic

An epic reference did not resolve.

Fields

reference: String

The reference exactly as the caller wrote it.

UnknownIssue

An issue selector named no issue in the snapshot.

Fields

selector: u32

The selector exactly as the caller wrote it.

DuplicateName

The name is blank, padded, or already in use.

Fields

name: String

The name as supplied.

InvalidDates

The start/due dates are malformed or inverted.

Fields

detail: String

The shared date rule’s message.

InvalidWeight

The weight is not a positive relative size.

Fields

value: i64

The value as supplied.

InvalidReference

A reference field’s value is not a well-formed id.

Fields

field: &'static str

The record field the value belongs to, e.g. projects.

value: String

The value as supplied.

SelfParent

The proposed parent is the epic itself.

Fields

epic: EpicId

The epic that would parent itself.

Cycle

The proposed parent chain would close a cycle.

Fields

epic: EpicId

The epic whose proposed parent closes the loop.

path: Vec<EpicId>

The offending path, from the epic back to itself.

Implementations

impl EpicError

pub fn kind(&self) -> EpicDiagnosticKind

The named diagnostic kind this refusal reports.

pub fn message(&self) -> String

The single wording for this refusal, via the kind’s helper.

Trait Implementations

impl Clone for EpicError

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 EpicError

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

Formats the value using the given formatter.

impl Display for EpicError

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

Formats the value using the given formatter.

impl Eq for EpicError

impl Error for EpicError

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<EpicError> for TixError

An epic refusal becomes user input error, so ? works at the call site.

The payload is a single-line diagnostic (<kind>: <message>), so it takes the crate’s existing invalid input: prefix without doubling it — the same boundary every other selector/validation refusal crosses (cli-surface §6).

fn from(err: EpicError) -> TixError

Converts to this type from the input type.

impl PartialEq for EpicError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EpicError