Enum VersionReq 

pub enum VersionReq {
    Exact(Version),
    Latest,
    Caret(Version),
    Tilde(Version),
    GreaterThan(Version),
    GreaterEq(Version),
    LessThan(Version),
    LessEq(Version),
    Range {
        min: Option<Version>,
        max: Option<Version>,
    },
}

Version requirement specifier (semver-style ranges)

Variants

Exact(Version)

Exact version: 1.2.3

Latest

Latest version: latest

Caret(Version)

Caret (compatible): ^1.2.3 (>=1.2.3, <2.0.0)

Tilde(Version)

Tilde (patch-level): ~1.2.3 (>=1.2.3, <1.3.0)

GreaterThan(Version)

Greater than: >1.2.3

GreaterEq(Version)

Greater or equal: >=1.2.3

LessThan(Version)

Less than: <1.2.3

LessEq(Version)

Less or equal: <=1.2.3

Range

Range: >=1.0.0, <2.0.0

Fields

min: Option<Version>

max: Option<Version>

Implementations

impl VersionReq

pub fn parse(s: &str) -> Result<Self, String>

pub fn matches(&self, version: &Version) -> bool

Check if a version satisfies this requirement

pub fn select_best<'a>(&self, available: &'a [Version]) -> Option<&'a Version>

Select the best matching version from available versions

Trait Implementations

impl Clone for VersionReq

fn clone(&self) -> VersionReq

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VersionReq

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

Formats the value using the given formatter.

impl Display for VersionReq

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

Formats the value using the given formatter.

impl PartialEq for VersionReq

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

impl StructuralPartialEq for VersionReq