Struct VersionPattern 

pub struct VersionPattern { /* private fields */ }

A version number pattern.

A version pattern appears in a VersionSpecifier. It is just like a version, except that it permits a trailing * (wildcard) at the end of the version number. The wildcard indicates that any version with the same prefix should match.

A VersionPattern cannot do any matching itself. Instead, it needs to be paired with an Operator to create a VersionSpecifier.

Here are some valid and invalid examples:

• 1.2.3 -> verbatim pattern
• 1.2.3.* -> wildcard pattern
• 1.2.*.4 -> invalid
• 1.0-dev1.* -> invalid

Implementations

impl VersionPattern

pub fn verbatim(version: Version) -> Self

Creates a new verbatim version pattern that matches the given version exactly.

pub fn wildcard(version: Version) -> Self

Creates a new wildcard version pattern that matches any version with the given version as a prefix.

pub fn version(&self) -> &Version

Returns the underlying version.

pub fn into_version(self) -> Version

Consumes this pattern and returns ownership of the underlying version.

Trait Implementations

impl Clone for VersionPattern

fn clone(&self) -> VersionPattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VersionPattern

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

Formats the value using the given formatter.

impl FromStr for VersionPattern

type Err = VersionPatternParseError

The associated error which can be returned from parsing.

fn from_str(version: &str) -> Result<Self, VersionPatternParseError>

Parses a string s to return a value of this type.

impl Hash for VersionPattern

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 PartialEq for VersionPattern

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

impl StructuralPartialEq for VersionPattern