Struct `VersionReq`

pub struct VersionReq { pub comparators: Vec<Comparator> }

SemVer version requirement describing the intersection of some version comparators, such as >=1.2.3, <1.8.

Syntax

Either * (meaning "any"), or one or more comma-separated comparators.
A Comparator is an operator (Op) and a partial version, separated by optional whitespace. For example >=1.0.0 or >=1.0.
Build metadata is syntactically permitted on the partial versions, but is completely ignored, as it's never relevant to whether any comparator matches a particular version.
Whitespace is permitted around commas and around operators. Whitespace is not permitted within a partial version, i.e. anywhere between the major version number and its minor, patch, pre-release, or build metadata.

Fields

comparators: Vec<Comparator>

Implementations

`impl VersionReq`

const STAR: Self = _;

A VersionReq with no constraint on the version numbers it matches. Equivalent to VersionReq::parse("*").unwrap().

In terms of comparators this is equivalent to >=0.0.0.

Counterintuitively a * VersionReq does not match every possible version number. In particular, in order for any VersionReq to match a pre-release version, the VersionReq must contain at least one Comparator that has an explicit major, minor, and patch version identical to the pre-release being matched, and that has a nonempty pre-release component. Since * is not written with an explicit major, minor, and patch version, and does not contain a nonempty pre-release component, it does not match any pre-release versions.

fn parse(text: &str) -> Result<Self, Error>

Create VersionReq by parsing from string representation.

Errors

Possible reasons for the parse to fail include:

>a.b — unexpected characters in the partial version.
@1.0.0 — unrecognized comparison operator.
^1.0.0, — unexpected end of input.
>=1.0 <2.0 — missing comma between comparators.
*.* — unsupported wildcard syntax.

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

Evaluate whether the given Version satisfies the version requirement described by self.

Trait Implementations

`impl Clone for VersionReq`

fn clone(&self) -> VersionReq

`impl Debug for VersionReq`

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

`impl Default for VersionReq`

fn default() -> Self

`impl Display for VersionReq`

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

`impl Eq for VersionReq`

`impl FromIterator<Comparator> for VersionReq`

fn from_iter<I>(iter: I) -> Self where I: IntoIterator<Item = Comparator>,

`impl FromStr for VersionReq`

type Err = Error;
fn from_str(text: &str) -> Result<Self, Self::Err>

`impl Hash for VersionReq`

fn hash<__H: Hasher>(&self, state: &mut __H)

`impl PartialEq for VersionReq`

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

`impl Serialize for VersionReq`

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer,

`impl StructuralPartialEq for VersionReq`

`impl<'de> Deserialize<'de> for VersionReq`

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'de>,

Auto Trait Implementations

`impl Freeze for VersionReq`

`impl RefUnwindSafe for VersionReq`

`impl Send for VersionReq`

`impl Sync for VersionReq`

`impl Unpin for VersionReq`

`impl UnsafeUnpin for VersionReq`

`impl UnwindSafe for VersionReq`

Blanket Implementations

`impl<T> Any for VersionReq where T: 'static + ?Sized,`

fn type_id(&self) -> TypeId

`impl<T> Borrow<T> for VersionReq where T: ?Sized,`

fn borrow(&self) -> &T

`impl<T> BorrowMut<T> for VersionReq where T: ?Sized,`

fn borrow_mut(&mut self) -> &mut T

`impl<T> CloneToUninit for VersionReq where T: Clone,`

unsafe fn clone_to_uninit(&self, dest: *mut u8)

`impl<T> DeserializeOwned for VersionReq where T: for<'de> Deserialize<'de>,`

`impl<T> From<T> for VersionReq`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> ToOwned for VersionReq where T: Clone,`

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

`impl<T> ToString for VersionReq where T: Display + ?Sized,`

fn to_string(&self) -> String

`impl<T, U> Into<U> for VersionReq where U: From<T>,`

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom<U> for VersionReq where U: Into<T>,`

type Error = never;
fn try_from(value: U) -> Result<T, never>

`impl<T, U> TryInto<U> for VersionReq where U: TryFrom<T>,`

type Error = <U as TryFrom<T>>::Error;
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>