Visualization

Mix.install([
  {:kino, path: "../kino/", override: true},
  {:protean, path: "../protean/", override: true},
  {:protean_kino, path: "./", override: true}
])

==> protean_kino
Compiling 1 file (.ex)

:ok

Section

import Protean.Builder

match(:foo, target: :bar)

{#Function<42.3316493/1 in :erl_eval.expr/6>, [_meta: %{expr: :foo}, target: :bar]}

defmodule MyMachine do
  use Protean

  @machine [
    initial: :parallel,
    states: [
      parallel(:parallel,
        entry: :foo,
        states: [
          compound(:parent,
            initial: :child1,
            on: [
              match(:goto_sibling, target: :"#sibling", actions: [:one, :other])
            ],
            states: [
              atomic(:child1,
                entry: Protean.Action.send(:message, to: :self),
                exit: "go do a thing",
                on: [
                  match(:goto_child2, target: :child2)
                ]
              ),
              atomic(:child2,
                on: [
                  match(%{foo: :bar}, actions: :do_a_thing, guard: {:not, :foo?})
                ]
              )
            ]
          ),
          atomic(:sibling)
        ]
      ),
      final(:sibling)
    ]
  ]

  @impl true
  def handle_action(_, state, _), do: state
end

{:module, MyMachine, <<70, 79, 82, 49, 0, 0, 60, ...>>, {:handle_action, 3}}

{:ok, machine, id} = Protean.start_machine(MyMachine)

{:ok,
 {:via, Registry,
  {Protean.ProcessManager.Registry, {MyMachine, "48683a65-fb4f-487d-98a6-b99af704195a"}}},
 "48683a65-fb4f-487d-98a6-b99af704195a"}

Protean.Kino.machine(MyMachine.__protean_machine__())