Enum ConstraintSpec 

pub enum ConstraintSpec {
    Exact(Version),
    Range {
        lower_inclusive: Version,
        upper_exclusive: Version,
    },
    Tilde(Version),
    Caret(Version),
    GreaterEqual(Version),
    Greater(Version),
    LessEqual(Version),
    Less(Version),
    Any,
}

One typed variant per constraint kind every package manager surfaces. Adapter is responsible for converting ~> 1.2.3 etc. into the matching shape.

Variants

Exact(Version)

Match exactly one version: =1.2.3.

Range

Inclusive lower bound, exclusive upper bound: >=1.2.3,<2.0.0.

Fields

lower_inclusive: Version

upper_exclusive: Version

Tilde(Version)

~1.2.3 — patch-level: >=1.2.3,<1.3.0. Caller-friendly alias for the common “approximately equal to” shape.

Caret(Version)

^1.2.3 — minor-level (default Cargo behavior): >=1.2.3,<2.0.0. Identical to Range { 1.2.3, 2.0.0 } — kept as a separate variant for diagnostics + round-tripping.

GreaterEqual(Version)

>=1.2.3 — open upper bound. Common in npm + pip.

Greater(Version)

>1.2.3 — strict lower bound.

LessEqual(Version)

<=1.2.3 — closed upper bound.

Less(Version)

<1.2.3 — strict upper bound.

Any

* / any — matches every version. Last-resort.

Trait Implementations

impl Clone for ConstraintSpec

fn clone(&self) -> ConstraintSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ConstraintSpec

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ConstraintSpec

fn eq(&self, other: &ConstraintSpec) -> 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 Serialize for ConstraintSpec

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ConstraintSpec

impl StructuralPartialEq for ConstraintSpec