Enum BuildError 

pub enum BuildError<K> {
    DuplicateKey(K),
    MissingKey(K),
    MissingDependency {
        task: K,
        missing: K,
    },
    EmptyGraph,
}

Variants

DuplicateKey(K)

MissingKey(K)

MissingDependency

Fields

task: K

missing: K

EmptyGraph

Trait Implementations

impl<K: Clone> Clone for BuildError<K>

fn clone(&self) -> BuildError<K>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K: Debug> Debug for BuildError<K>

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

Formats the value using the given formatter.

impl<K: Debug> Display for BuildError<K>

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

Formats the value using the given formatter.

impl<K: Debug> Error for BuildError<K>

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<K, E> From<BuildError<K>> for ExecError<K, E>

fn from(e: BuildError<K>) -> Self

Converts to this type from the input type.

impl<K: PartialEq> PartialEq for BuildError<K>

fn eq(&self, other: &BuildError<K>) -> 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<K: Eq> Eq for BuildError<K>

impl<K> StructuralPartialEq for BuildError<K>