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----
-- Incoming side-effect adapter, creating events for the dataflow graph.
--
-- Polled by the main event loop to kick of events that cause the the dataflow
-- graph to ripple results.
--
-- @classmod IO
class IO
--- IO interface.
--
-- methods that have to be implemented by `IO` implementations.
-- @section interface
--- construct a new instance.
--
-- Must prepare the instance for `dirty` to be called.
-- @classmethod
new: =>
--- poll for changes.
--
-- Called every frame by the main event loop to update internal state.
tick: =>
--- check whether this adapter requires processing.
--
-- Must return a boolean indicating whether `Op`s that refer to this instance
-- via `Input.io` should be notified (via `Op:tick`). May be called multiple
-- times. May be called before `tick` on the first frame after construction.
--
-- @treturn bool whether processing is required
dirty: =>
__tostring: => "<IO #{@@__name}>"
__inherited: (cls) => cls.__base.__tostring = @__tostring
{
:IO
}
|