Struct SingleConstraint 

pub struct SingleConstraint { /* private fields */ }

A single version constraint (e.g., >=1.0.0, <2.0.0, ==1.5.0).

Implementations

impl SingleConstraint

pub fn new(operator: Operator, version: impl Into<String>) -> Self

Create a new single constraint.

pub const fn operator(&self) -> Operator

Get the operator.

pub fn version(&self) -> &str

Get the version string.

pub fn is_dev_branch(&self) -> bool

Check if this version is a dev branch (starts with “dev-”).

pub fn match_specific(&self, other: &Self, compare_branches: bool) -> bool

Match against another single constraint. This implements the core matching logic from PHP’s Constraint::matchSpecific.

Trait Implementations

impl Clone for SingleConstraint

fn clone(&self) -> SingleConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Constraint for SingleConstraint

fn matches(&self, other: &dyn Constraint) -> bool

Check if this constraint matches/intersects with another.

fn lower_bound(&self) -> Bound

Get the lower bound of this constraint.

fn upper_bound(&self) -> Bound

Get the upper bound of this constraint.

fn set_pretty_string(&mut self, pretty: String)

Set a custom pretty string (for preserving user input).

fn pretty_string(&self) -> String

Get a human-readable representation.

fn as_single(&self) -> Option<&SingleConstraint>

Try to downcast to SingleConstraint.

fn is_match_all(&self) -> bool

Check if this is a MatchAllConstraint.

fn is_match_none(&self) -> bool

Check if this is a MatchNoneConstraint.

fn as_multi(&self) -> Option<&MultiConstraint>

Try to downcast to MultiConstraint.

impl Debug for SingleConstraint

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

Formats the value using the given formatter.

impl Display for SingleConstraint

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

Formats the value using the given formatter.