Enum FeatureRefusal 

pub enum FeatureRefusal {
    Text(String),
    Typed(KernelRefusal),
}

What a feature’s build hands back when it refuses. A feature that drives a typed producer propagates the KernelRefusal whole (? converts it), so its class reaches FeatureResult::refusal; one that drives a stringly producer propagates the text. There is no From<FeatureRefusal> for String: the text of a typed refusal is read through FeatureRefusal::message, never by dropping the class.

Variants

Text(String)

Typed(KernelRefusal)

Implementations

impl FeatureRefusal

pub fn message(&self) -> &str

The human text either way, verbatim.

Trait Implementations

impl Clone for FeatureRefusal

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FeatureRefusal

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

Formats the value using the given formatter.

impl Display for FeatureRefusal

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

Formats the value using the given formatter.

impl From<&str> for FeatureRefusal

fn from(message: &str) -> Self

Converts to this type from the input type.

impl From<KernelRefusal> for FeatureRefusal

fn from(refusal: KernelRefusal) -> Self

Converts to this type from the input type.

impl From<String> for FeatureRefusal

fn from(message: String) -> Self

Converts to this type from the input type.

impl PartialEq for FeatureRefusal

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FeatureRefusal