Enum RegistrationErrorKind 

pub(crate) enum RegistrationErrorKind {
    ArgumentRoot,
    NodeKindCollision {
        name: Box<str>,
        existing: NodeKind,
        incoming: NodeKind,
    },
    ArgumentTypeCollision {
        name: Box<str>,
    },
    RequirementCollision {
        name: Box<str>,
    },
    RedirectCollision {
        name: Box<str>,
    },
    RedirectWithChildren {
        name: Box<str>,
    },
    InvalidRedirectTarget {
        target: NodeId,
    },
}

Identifies why command registration failed.

Variants

ArgumentRoot

Only literals may be registered directly under the root.

NodeKindCollision

The two nodes sharing a name have different categories.

Fields

name: Box<str>

existing: NodeKind

incoming: NodeKind

ArgumentTypeCollision

Argument nodes sharing a name use different parsers.

Fields

name: Box<str>

RequirementCollision

Nodes sharing a name use predicates with different identities.

Fields

name: Box<str>

RedirectCollision

Nodes sharing a name have different redirects.

Fields

name: Box<str>

RedirectWithChildren

A redirected node also has children.

Fields

name: Box<str>

InvalidRedirectTarget

A redirect points outside its dispatcher.

Fields

target: NodeId

Trait Implementations

impl Clone for RegistrationErrorKind

fn clone(&self) -> RegistrationErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RegistrationErrorKind

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

Formats the value using the given formatter.

impl Display for RegistrationErrorKind

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

Formats the value using the given formatter.

impl Eq for RegistrationErrorKind

impl Error for RegistrationErrorKind

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 RegistrationErrorKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RegistrationErrorKind