UniqueItems<T> class

Validates that a list has a unique set of items.

Uses an O(n²) pairwise DeepCollectionEquality comparison so that nested List and Map elements are compared by structural value rather than by reference. A LinkedHashSet with a deep-equality hasher could give O(n) average-case but would require a matching deep hash function; the pairwise approach is simpler and correct for the expected list sizes in JSON Schema validation.

Implemented types

Constructors

UniqueItems()

Properties

hashCode → int
The hash code for this object.
no setteroverride
name → String
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

call(Iterable input) → bool
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toMap() → Map<String, dynamic>
toString() → String
A string representation of this object.
inherited
uniqueItems(Iterable input) → bool
Returns true if all elements are pairwise distinct under deep equality.

Operators

operator ==(Object other) → bool
The equality operator.
override