Enum Constraint 

pub enum Constraint {
    Semver(VersionReq),
    Latest,
    RefPin(String),
}

A dependency entry’s version, read.

Variants

Semver(VersionReq)

Semver requirement (^1.0, >=0.5.0, ~2.1, an exact version).

Latest

Any version, prefer newest.

RefPin(String)

Branch or commit pin: no semver resolution.

Trait Implementations

impl Clone for Constraint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Constraint

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

Formats the value using the given formatter.

impl Display for Constraint

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

Formats the value using the given formatter.