VersionConstraint class

A VersionConstraint is a predicate that can determine whether a given version is valid or not.

For example, a ">= 2.0.0" constraint allows any version that is "2.0.0" or greater. Version objects themselves implement this to match a specific version.

Implementers

Constructors

VersionConstraint.compatibleWith(Version version): Creates a version constraint which allows all versions that are backward compatible with version. [...]
factory
VersionConstraint.intersection(Iterable<VersionConstraint> constraints): Creates a new version constraint that is the intersection of constraints. [...]
factory
VersionConstraint.parse(String text): Parses a version constraint. [...]
factory
VersionConstraint.unionOf(Iterable<VersionConstraint> constraints): Creates a new version constraint that is the union of constraints. [...]
factory

Properties

isAny → bool: Returns true if this constraint allows all versions.
read-only
isEmpty → bool: Returns true if this constraint allows no versions.
read-only
hashCode → int: The hash code for this object. [...]
read-only, inherited
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited

Methods

allows(Version version) → bool: Returns true if this constraint allows version.
allowsAll(VersionConstraint other) → bool: Returns true if this constraint allows all the versions that other allows.
allowsAny(VersionConstraint other) → bool: Returns true if this constraint allows any of the versions that other allows.
difference(VersionConstraint other) → VersionConstraint: Returns a VersionConstraint that allows Versions allowed by this but not other.
intersect(VersionConstraint other) → VersionConstraint: Returns a VersionConstraint that only allows Versions allowed by both this and other.
union(VersionConstraint other) → VersionConstraint: Returns a VersionConstraint that allows Versionss allowed by either this or other.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed. [...]
inherited
toString() → String: Returns a string representation of this object.
inherited

Operators

operator ==(dynamic other) → bool: The equality operator. [...]
inherited

Static Properties

any ↔ VersionConstraint: A VersionConstraint that allows all versions.
read / write
empty ↔ VersionConstraint: A VersionConstraint that allows no versions -- the empty set.
read / write