Enum rustc_mir::dataflow::lattice::FlatSet

pub enum FlatSet<T> {
    Bottom,
    Elem(T),
    Top,
}

Extends a type T with top and bottom elements to make it a partially ordered set in which no value of T is comparable with any other. A flat set has the following Hasse diagram:

        top
      / /  \ \
all possible values of `T`
      \ \  / /
       bottom

Variants

Bottom

Elem(T)

Top

Trait Implementations

impl<T: Clone> Clone for FlatSet<T>

pub fn clone(&self) -> FlatSet<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Copy> Copy for FlatSet<T>

impl<T: Debug> Debug for FlatSet<T>

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

Formats the value using the given formatter.

impl<T: Eq> Eq for FlatSet<T>

impl<T: Clone + Eq> JoinSemiLattice for FlatSet<T>

pub fn join(&mut self, other: &Self) -> bool

Computes the least upper bound of two elements, storing the result in self and returning true if self has changed.

impl<T: Clone + Eq> MeetSemiLattice for FlatSet<T>

pub fn meet(&mut self, other: &Self) -> bool

Computes the greatest lower bound of two elements, storing the result in self and returning true if self has changed.

impl<T: PartialEq> PartialEq<FlatSet<T>> for FlatSet<T>

pub fn eq(&self, other: &FlatSet<T>) -> bool

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

pub fn ne(&self, other: &FlatSet<T>) -> bool

This method tests for !=.

impl<T> StructuralEq for FlatSet<T>

impl<T> StructuralPartialEq for FlatSet<T>