Enum GraphErrorKind

pub enum GraphErrorKind {
    NotFound {
        query: Query,
    },
    NotSupported {
        query: Query,
    },
    OutOfRange {
        entry: GraphEntry,
        index: usize,
        max: usize,
    },
    IO {
        entry: String,
        error: Error,
    },
    Custom {
        message: String,
    },
}

The real error type of a graph operation, it will not be exposed to the user, see GraphError for more.

Examples

use graph_theory::GraphEngine;

Variants

NotFound

Some index is not found in storage.

Examples

• edge id 0 out of range

use graph_theory::{GraphError, Query};
GraphError::not_found(Query::edge(0));
GraphError::edge_not_found(0);

Fields

query: Query

NotSupported

Some index is not found in storage.

Examples

• edge id 0 out of range

use graph_theory::{GraphError, Query};
GraphError::not_found(Query::edge(0));
GraphError::edge_not_found(0);

Fields

query: Query

OutOfRange

Some index is out of range of storage.

Max index is 5, but you query index 6.

Examples

use graph_theory::{GraphError, Query};
GraphError::not_found(Query::edge(0));
GraphError::node_out_of_range(6, 5);

Fields

entry: GraphEntry

The entry type of the error.

index: usize

The entry index you want to access.

max: usize

All elements count of the storage.

IO

An IO error occurred.

Examples

use graph_theory::{GraphError, Query};

Fields

entry: String

The position of the error occurred.

error: Error

The wrapped IO error.

Custom

Arguments

• index:

returns: Option<CowSelf::Node>

Examples

use graph_theory::GraphEngine;

Fields

message: String

Arguments

Trait Implementations

impl Debug for GraphErrorKind

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

Formats the value using the given formatter.

impl Display for GraphErrorKind

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

Formats the value using the given formatter.