CallOnce<R> class
final
Executes the provided Function exactly once, even if called concurrently.
Constructors
- CallOnce.new(Function _closure)
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- isCompleted → bool
-
True if the asynchronous call to this CallOnce is
already completed.
no setter
-
result
→ Future<
R> -
The cached result from call.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- wasCalled → bool
-
True if this CallOnce has already been called.
no setter
Methods
-
call(
[List? positionalArguments, Map< Symbol, dynamic> ? namedArguments]) → Future<R> - Call the closure, which was provided as an argument to the CallOnce constructor, with the specified arguments.
-
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