Enum WalkerError 

pub enum WalkerError<E> {
    RefCycle(TypeId),
    DanglingRef(TypeId),
    Walker(E),
}

Errors raised by the walk driver. Walker-specific errors are wrapped in WalkerError::Walker.

Variants

RefCycle(TypeId)

A ref cycle was detected during traversal.

DanglingRef(TypeId)

A named ref pointed at a type id that is not declared in the graph.

Walker(E)

The walker rejected the sub-tree.

Trait Implementations

impl<E> Clone for WalkerError<E>

where E: Clone,

fn clone(&self) -> WalkerError<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E> Debug for WalkerError<E>

where E: Debug,

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

Formats the value using the given formatter.

impl<E> Display for WalkerError<E>

where E: Display,

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

Formats the value using the given formatter.

impl<E> Eq for WalkerError<E>

where E: Eq,

impl<E> Error for WalkerError<E>

where E: Error + 'static,

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<E> PartialEq for WalkerError<E>

where E: PartialEq,

fn eq(&self, other: &WalkerError<E>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<E> StructuralPartialEq for WalkerError<E>

where E: PartialEq,