CloneableGenerator class

Takes a generator function (sync*) and returns a generator function. All generators instantiated from this function will be cloneable. For testing purpose only.

Example

This is useful when you want to test a different branch of a saga without having to replay the actions that lead to it.

 Iterable<int> testGen(int base) sync* {
   yield base;
   yield base + 1;
   yield base + 2;
   yield base + 3;
   yield base + 4;
 }

 var gen = CloneableGenerator(testGen, args: <dynamic>[0]);

 gen.moveNext();   //gen.current is 0
 gen.moveNext();   //gen.current is 1

 CloneableGenerator genCloned = gen.clone();

 gen.moveNext(); //gen.current is 2
 genCloned.moveNext(); //genCloned.current is 2

Implemented types

• Iterator

Constructors

CloneableGenerator(Function fn, {List? args, Map<Symbol, dynamic>? namedArgs})

Creates an instance of a CloneableGenerator

Properties

args → List?

Arguments of the generator function to call

final

current → dynamic

The current element.

no setter, override

fn → Function

A Generator function to call and clone

final

hashCode → int

The hash code for this object.

no setter, inherited

namedArgs → Map<Symbol, dynamic>?

Named arguments of the generator function to call

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clone() → CloneableGenerator

Clones the generator and both generator can resume from the same step.

moveNext() → bool

Advances the iterator to the next element of the iteration.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

setResult(dynamic value) → void

Sets current effect result

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited