Enum PruneError 

pub enum PruneError {
    MultipleParents {
        node: String,
        parent1: String,
        parent2: String,
    },
    NoParent {
        node: String,
    },
    CycleDetected,
    NoRootNode,
}

Error type for graph pruning operations

Variants

MultipleParents

Node has multiple parents (malformed graph)

Fields

node: String

parent1: String

parent2: String

NoParent

Node has no parent but is not root (disconnected)

Fields

node: String

CycleDetected

Edge traversal hit depth limit (likely cycle)

NoRootNode

Graph has no root node

Trait Implementations

impl Clone for PruneError

fn clone(&self) -> PruneError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PruneError

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

Formats the value using the given formatter.

impl Display for PruneError

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

Formats the value using the given formatter.

impl Error for PruneError

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.