Enum NullValue 

pub enum NullValue {
    MustNull,
    NonNull,
    MayNull,
    Bottom,
}

Null pointer analysis: may/must nullness at each program point.

Variants

MustNull

Definitely null

NonNull

Definitely non-null

MayNull

May or may not be null

Bottom

Unreachable (bottom)

Trait Implementations

impl Clone for NullValue

fn clone(&self) -> NullValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NullValue

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

Formats the value using the given formatter.

impl PartialEq for NullValue

fn eq(&self, other: &NullValue) -> 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 Eq for NullValue

impl StructuralPartialEq for NullValue