Struct ConflictMarker 

pub struct ConflictMarker { /* private fields */ }

A marker that is only for representing conflicting extras/groups.

This encapsulates the encoding of extras and groups into PEP 508 markers.

Implementations

impl ConflictMarker

pub const TRUE: Self

A constant conflict marker that always evaluates to true.

pub const FALSE: Self

A constant conflict marker that always evaluates to false.

pub fn from_conflicts(conflicts: &Conflicts) -> Self

Creates a new conflict marker from the declared conflicts provided.

pub fn from_conflict_item(item: &ConflictItem) -> Self

Create a conflict marker that is true only when the given extra or group (for a specific package) is activated.

pub fn project(package: &PackageName) -> Self

Create a conflict marker that is true only when the production dependencies for the given package are activated.

pub fn extra(package: &PackageName, extra: &ExtraName) -> Self

Create a conflict marker that is true only when the given extra for the given package is activated.

pub fn group(package: &PackageName, group: &GroupName) -> Self

Create a conflict marker that is true only when the given group for the given package is activated.

pub fn negate(self) -> Self

Returns a new conflict marker that is the negation of this one.

pub fn or(self, other: Self) -> Self

Returns a new conflict marker corresponding to the union of self and other.

pub fn and(self, other: Self) -> Self

Returns a new conflict marker corresponding to the intersection of self and other.

pub fn implies(self, other: Self) -> Self

Returns a new conflict marker corresponding to the logical implication of self and the given consequent.

If the conflict marker returned is always true, then it can be said that self implies consequent.

pub fn is_true(self) -> bool

Returns true if this conflict marker will always evaluate to true.

pub fn is_false(self) -> bool

Returns true if this conflict marker will always evaluate to false.

Trait Implementations

impl Clone for ConflictMarker

fn clone(&self) -> ConflictMarker

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConflictMarker

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

Formats the value using the given formatter.

impl Default for ConflictMarker

fn default() -> ConflictMarker

Returns the “default value” for a type.

impl Hash for ConflictMarker

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 ConflictMarker

fn cmp(&self, other: &ConflictMarker) -> 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.

impl PartialEq for ConflictMarker

fn eq(&self, other: &ConflictMarker) -> 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 PartialOrd for ConflictMarker

fn partial_cmp(&self, other: &ConflictMarker) -> 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 Copy for ConflictMarker

impl Eq for ConflictMarker

impl StructuralPartialEq for ConflictMarker