Enum InvalidHop 

#[non_exhaustive]
pub enum InvalidHop {
    Range,
    TooMany,
    Duplicate,
}

Why a Hop is not usable, on its own or as part of a Hops chain.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Range

The id is zero or outside the 62-bit wire range, so it cannot identify a local hop. Only Hop::new returns this; a chain never holds one.

TooMany

The list is already at its hop-count cap, which a real path never reaches and a loop does.

Duplicate

The id is already in the list. A chain that revisits a hop looped, which every receiver of it must reject, so it must not be built in the first place. The reserved id 0 identifies nothing and may repeat.

Trait Implementations

impl Clone for InvalidHop

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for InvalidHop

impl Debug for InvalidHop

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

Formats the value using the given formatter.

impl Display for InvalidHop

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

Formats the value using the given formatter.

impl Eq for InvalidHop

impl Error for InvalidHop

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 From<InvalidHop> for DecodeError

fn from(err: InvalidHop) -> Self

Converts to this type from the input type.

impl PartialEq for InvalidHop

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for InvalidHop