rustc_mir_dataflow::lattice

Trait JoinSemiLattice

Source
pub trait JoinSemiLattice: Eq {
    // Required method
    fn join(&mut self, other: &Self) -> bool;
}
Expand description

A partially ordered set that has a least upper bound for any pair of elements in the set.

Required Methods§

Source

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.

The lattice join operator is abbreviated as .

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types§

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impl<T: Idx> JoinSemiLattice for MixedBitSet<T>

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

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impl<T: Idx> JoinSemiLattice for BitSet<T>

A BitSet represents the lattice formed by the powerset of all possible values of the index type T ordered by inclusion. Equivalently, it is a tuple of “two-point” lattices, one for each possible value of T.

Source§

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

Implementors§