Enum ConnectError 

pub enum ConnectError {
    PortMissing,
    SelfLoop,
    Rejected,
}

Errors returned by Graph::connect / Graph::connect_with.

Variants

PortMissing

One or both port IDs are stale / unknown.

SelfLoop

Both endpoints are the same port. (Two different ports on the same node are fine — that’s an internal jumper.)

Rejected

The user predicate passed to Graph::connect_with returned false (e.g. output→output in a dataflow graph, mismatched pipe diameter…).

Trait Implementations

impl Clone for ConnectError

fn clone(&self) -> ConnectError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ConnectError

impl Debug for ConnectError

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

Formats the value using the given formatter.

impl Display for ConnectError

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

Formats the value using the given formatter.

impl Eq for ConnectError

impl Error for ConnectError

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 ConnectError

fn eq(&self, other: &ConnectError) -> 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 ConnectError