Enum TailUse 

pub enum TailUse {
    Unused,
    TailOnly,
    NonTail,
    Mixed,
}

Information about whether a variable is used only in tail position

Variants

Unused

Never used

TailOnly

Used only in tail position

NonTail

Used in non-tail position

Mixed

Used in both tail and non-tail positions

Trait Implementations

impl Clone for TailUse

fn clone(&self) -> TailUse

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TailUse

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

Formats the value using the given formatter.

impl PartialEq for TailUse

fn eq(&self, other: &TailUse) -> 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 TailUse

impl StructuralPartialEq for TailUse