Enum DagError 

pub enum DagError {
    CycleDetected {
        nodes: Vec<usize>,
        description: String,
    },
    InvalidDependency {
        task_id: usize,
    },
    TypeMismatch {
        expected: &'static str,
        found: &'static str,
    },
    TaskPanicked {
        task_id: usize,
        panic_message: String,
    },
    ResultNotFound {
        task_id: usize,
    },
}

Errors that can occur during DAG construction and execution

Variants

CycleDetected

A cycle was detected in the DAG

Fields

nodes: Vec<usize>

description: String

InvalidDependency

Invalid dependency: task does not exist

Fields

task_id: usize

TypeMismatch

Type mismatch in task dependencies

Fields

expected: &'static str

found: &'static str

TaskPanicked

Task panicked during execution

Fields

task_id: usize

panic_message: String

ResultNotFound

Result not found for task

Fields

task_id: usize

Trait Implementations

impl Clone for DagError

fn clone(&self) -> DagError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DagError

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

Formats the value using the given formatter.

impl Display for DagError

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

Formats the value using the given formatter.

impl Error for DagError

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 DagError

fn eq(&self, other: &DagError) -> 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 StructuralPartialEq for DagError