MultiEquality<E> class
Combines several equalities into a single equality.
Tries each equality in order, using Equality.isValidKey, and returns the result of the first equality that applies to the argument or arguments.
For equals, the first equality that matches the first argument is used,
and if the second argument of equals is not valid for that equality,
it returns false.
Because the equalities are tried in order, they should generally work on
disjoint types. Otherwise the multi-equality may give inconsistent results
for equals(e1, e2) and equals(e2, e1). This can happen if one equality
considers only e1 a valid key, and not e2, but an equality which is
checked later, allows both.
- Implemented types
-
- Equality<
E>
- Equality<
Constructors
-
MultiEquality(Iterable<
Equality< equalities)E> > -
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
equals(
E e1, E e2) → bool -
Compare two elements for being equal.
override
-
hash(
E e) → int -
Creates a combined hash code for a number of objects.
override
-
isValidKey(
Object? o) → bool -
Test whether an object is a valid argument to equals and hash.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited