Enum guppy::graph::EnabledTernary

pub enum EnabledTernary {
    Disabled,
    Unknown,
    Enabled,
}

Whether a dependency or feature is enabled on a specific platform.

This is a ternary or three-valued logic because the result may be unknown in some situations.

Returned by the methods on EnabledStatus, PlatformStatus, and PlatformEval.

Variants

Disabled

The dependency is disabled on this platform.

Unknown

The status of this dependency is unknown on this platform.

This may happen if evaluation involves unknown target features. Notably, this will not be returned for Platform::current(), since the target features for the current platform are known.

Enabled

The dependency is enabled on this platform.

Implementations

impl EnabledTernary

pub fn is_known(self) -> bool

Returns true if the status is known (either enabled or disabled).

Trait Implementations

impl Clone for EnabledTernary

fn clone(&self) -> EnabledTernary

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for EnabledTernary

impl Debug for EnabledTernary

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

Formats the value using the given formatter.

impl Eq for EnabledTernary

impl Hash for EnabledTernary

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl Ord for EnabledTernary

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

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<EnabledTernary> for EnabledTernary

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<EnabledTernary> for EnabledTernary

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

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

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

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

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

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

impl StructuralEq for EnabledTernary

impl StructuralPartialEq for EnabledTernary