Simulator class abstract

A functional event-based static simulator for logic behavior.

Each tick of the simulator steps through the following events and phases:

preTick (event): Occurs at the very start of a tick, before anything else occurs. This is useful for flop sampling.
SimulatorPhase.beforeTick (phase)
startTick (event): The beginning of the "meat" of the tick.
SimulatorPhase.mainTick (phase): Most events happen here, lots of glitches.
clkStable (event): All glitchiness has completed, clocks should be stable now.
SimulatorPhase.clkStable (phase)
postTick (event): The tick has completed, all values should be settled.
SimulatorPhase.outOfTick (phase): Not during an active simulator tick.

Functional behavior modelling subscribes to Simulator events and/or queries the SimulatorPhase.

Constructors

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

noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited

clkStable → Stream<void>: Emits an event when most events are complete, and clocks are stable.
no setter
logger → Logger: A global logger object for the Simulator.
final
phase → SimulatorPhase: Gets the current SimulatorPhase of the Simulator.
no setter
postTick → Stream<void>: Emits an event after all events are completed.
no setter
preTick → Stream<void>: Emits an event before any other actions take place on the tick.
no setter
resetRequested → Future<void>: Completes when reset is called after the Simulator has completed any actions it needs to perform to prepare for the next simulation.
no setter
simulationEnded → Future<void>: Completes when the simulation has completed.
no setter
simulationHasEnded → bool: Returns true iff the simulation has completed.
no setter
startTick → Stream<void>: Emits an event at the start of actions within a tick.
no setter
time → int: The current time in the Simulator.
no setter

cancelAction(int timestamp, dynamic action()) → bool: Cancels an action previously scheduled for timestamp.
endSimulation() → Future<void>: Halts the simulation. Allows the current tick to finish, if there is one.
hasStepsRemaining() → bool: Returns true iff there are more steps for the Simulator to tick through.
injectAction(dynamic action()) → void: Adds an arbitrary action to be executed as soon as possible, during the current simulation tick if possible.
registerAction(int timestamp, dynamic action()) → void: Registers an abritrary action to be executed at timestamp time.
registerEndOfSimulationAction(dynamic action()) → void: Registers an arbitrary action to be executed at the end of the simulation.
reset() → Future<void>: Resets the entire Simulator back to its initial state.
run() → Future<void>: Starts the simulation, executing all pending actions in time-order until it finishes or is stopped.
setMaxSimTime(int newMaxSimTime) → void: Sets a time, after which, the Simulator will halt processing of new actions.
throwException(Exception exception, StackTrace stackTrace) → void: Collects an exception and associated stackTrace triggered asynchronously during simulation to be thrown synchronously by run.
tick() → Future<void>: A single simulation tick.