Enum GraphAnalysisError 

pub enum GraphAnalysisError {
    UnknownNode {
        node: GraphNodeId,
    },
    NodeLimitExceeded {
        count: u32,
        limit: u32,
    },
    SelectedEdgeLimitExceeded {
        count: u32,
        limit: u32,
    },
    DepthLimitExceeded {
        requested: u32,
        limit: u32,
    },
    BetweennessWorkLimitExceeded {
        required: u64,
        limit: u64,
    },
    BetweennessWorkOverflow,
    ConsumedGraphInvariant {
        node: GraphNodeId,
    },
}

A refusal taken while building or querying one analysis.

Variants

UnknownNode

A query named a node this graph holds no record for.

Fields

node: GraphNodeId

The identity that named nothing.

NodeLimitExceeded

The graph states more nodes than the stated ceiling admits.

Fields

count: u32

How many nodes the graph states.

limit: u32

The ceiling the caller stated.

SelectedEdgeLimitExceeded

The selection admits more edges than the stated ceiling allows.

Fields

count: u32

How many edges the selection admits.

limit: u32

The ceiling the caller stated.

DepthLimitExceeded

A query asked to walk further than the stated ceiling allows.

Fields

requested: u32

The depth the query asked for.

limit: u32

The ceiling the caller stated.

BetweennessWorkLimitExceeded

Betweenness over this selection costs more than the stated ceiling.

Fields

required: u64

The upper bound on the work the selection would cost.

limit: u64

The ceiling the caller stated.

BetweennessWorkOverflow

The betweenness work bound does not fit the width it is counted in.

ConsumedGraphInvariant

Partition derivation observed a node no container owns.

Graph construction proves every node is reachable from one container root, and no public constructor can state a graph that is not, so this is the exhaustiveness branch of a guarantee rather than a reachable refusal.

Fields

node: GraphNodeId

The node no container ancestor answers for.

Trait Implementations

impl Debug for GraphAnalysisError

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

Formats the value using the given formatter.

impl Display for GraphAnalysisError

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

Formats the value using the given formatter.

impl Error for GraphAnalysisError

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.