put scope in process dictionary => simplify procs

lib/csys/csys.ex

@@ -19,7 +19,8 @@ defmodule Scopes.CSys do
   # helper functions
 
   defp process(msg, scope) do
-    proc(scope).(msg, scope)
+    Process.put(:scope, scope)
+    proc(scope).(msg)
   end
 
   def state(scope), do: elem(scope, 0)

lib/csys/program.ex

@@ -9,28 +9,34 @@ defmodule Scopes.CSys.Program do
   # programs
 
   def basic_prog() do
-    %{initial: &std_proc/2,
-      active: &std_proc/2,
-      retired: &std_proc/2
+    %{initial: &std_proc/1,
+      active: &std_proc/1,
+      retired: &std_proc/1
     }
   end
 
   # processors
 
-  def std_proc({:parent}, scope) do
-    new = create_parent(env(scope))
-    notify({:created, new}, scope)
+  #def std_proc({:parent}, scope) do
+  def std_proc(msg) do
+    scope = Process.get(:scope)
+    case msg do
+      {:parent} ->
+        new = create_parent(scope)
+        notify({:created, new}, scope)
+      _ -> forward(msg, scope) || notify(msg, scope)
+    end
   end
 
   #def std_proc({:activate}, {state, _proc, syns, env) do
-  def std_proc({:next}, {state, _proc, syns, env}) do
+  def xx_std_proc({:next}, {state, _proc, syns, env}) do
     #proc = Environ.get_next_stage(env, :basic, :initial)
     #proc = Environ.get_stage_for(env, :basic, :activate)
     proc = Environ.get_stage(env, :basic, :active)
     update_neuron({state, proc, syns, env})
   end
 
-  def std_proc(msg, scope) do
+  def xx_std_proc(msg, scope) do
     forward(msg, scope) || notify(msg, scope)
   end
 
@@ -46,8 +52,9 @@ defmodule Scopes.CSys.Program do
 
 # step functions
 
-  def create_parent(env) do
+  def create_parent({_state, procs, _syns, env}) do
     syn = synapse(self(), &Function.identity/1, 0)
-    neuron({[], Environ.get_stage(env, :basic, :initial), [syn], env})
+    #neuron({[], Environ.get_stage(env, :basic, :initial), [syn], env})
+    neuron({[], procs, [syn], env})
   end
 end