Enum Capability 

pub enum Capability {
    Types,
    Dataflow,
}

A host analysis a rule can declare it needs.

Closed, and small on purpose. A capability exists here only once something implements it or refuses it by name — the alternative is a rule declaring a dependency on an analysis nothing will ever provide, which reads as configuration rather than as the error it is.

Variants

Types

Type answers about a node — ctx.types.

Dataflow

Dataflow answers about a value’s movement. Declared, not yet implemented.

Implementations

impl Capability

pub const fn as_str(self) -> &'static str

The name a rule writes, which is the name the refusal prints.

pub fn parse(name: &str) -> Option<Self>

The capability that name denotes, if any.

pub const fn all() -> &'static [Self]

Every capability, in the order as_str and parse agree on.

For a refusal that lists what a rule may name — mirrors Namespace::built_ins for the same reason: one place naming every variant, so a message enumerating them cannot name a different set than parse recognizes.

Trait Implementations

impl Clone for Capability

fn clone(&self) -> Capability

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Capability

impl Debug for Capability

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

Formats the value using the given formatter.

impl Eq for Capability

impl Hash for Capability

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Capability

fn cmp(&self, other: &Capability) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Capability

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Capability

fn partial_cmp(&self, other: &Capability) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Capability