Enum FreeVar 

pub enum FreeVar<'a> {
    Named(&'a str),
    Anonymous(usize),
}

A free variable which can either be named or refered to by a integer.

Variants

Named(&'a str)

A labeled free variable

Anonymous(usize)

An anonymous free variable defined by an index.

Trait Implementations

impl<'a> Clone for FreeVar<'a>

fn clone(&self) -> FreeVar<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for FreeVar<'a>

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

Formats the value using the given formatter.

impl Display for FreeVar<'_>

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

Formats the value using the given formatter.

impl<'a> From<&'a str> for FreeVar<'a>

fn from(value: &'a str) -> Self

Converts to this type from the input type.

impl<'a> From<usize> for FreeVar<'a>

fn from(value: usize) -> Self

Converts to this type from the input type.

impl<'a> Hash for FreeVar<'a>

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<'a> PartialEq for FreeVar<'a>

fn eq(&self, other: &FreeVar<'a>) -> 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<'a> Copy for FreeVar<'a>

impl<'a> Eq for FreeVar<'a>

impl<'a> StructuralPartialEq for FreeVar<'a>