From 88e67b02ecd7da583498cb5c2596f3940e679437 Mon Sep 17 00:00:00 2001
From: Helmut Merz <helmutm@cy55.de>
Date: Sun, 19 Apr 2026 17:40:42 +0200
Subject: [PATCH] start csys development with simple neuron implementation

---
 README.md          | 21 ++++++++++++++++-----
 lib/csys/csys.ex   |  8 ++++++++
 test/core_test.exs |  3 ++-
 test/csys_test.exs | 17 +++++++++++++++++
 4 files changed, 43 insertions(+), 6 deletions(-)
 create mode 100644 lib/csys/csys.ex
 create mode 100644 test/csys_test.exs

diff --git a/README.md b/README.md
index 7a99864..f7b2a94 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,27 @@
-# Xplore
+# Scopes
 
-**TODO: Add description**
+Yet another implementation of the unfamous `scopes` framework.
 
 ## Installation
 
-If [available in Hex](https://hex.pm/docs/publish), the package can be installed
-by adding `xplore` to your list of dependencies in `mix.exs`:
+You can use the development checkout from Git and reference it as a dependency
+in `mix.exs` like this:
 
 ```elixir
 def deps do
   [
-    {:xplore, "~> 0.1.0"}
+    {:scopes, path: "../ex-scopes"}
+  ]
+end
+```
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `scopes` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+  [
+    {:scopes, "~> 0.1.0"}
   ]
 end
 ```
diff --git a/lib/csys/csys.ex b/lib/csys/csys.ex
new file mode 100644
index 0000000..6149237
--- /dev/null
+++ b/lib/csys/csys.ex
@@ -0,0 +1,8 @@
+defmodule Scopes.CSys do
+  #alias Scopes.Core.Actor
+
+  def neuron(proc, scope) do
+    #{state, syns, env} = scope
+    fn msg -> proc.(msg, scope) end
+  end
+end
diff --git a/test/core_test.exs b/test/core_test.exs
index 155ad4a..499dd00 100644
--- a/test/core_test.exs
+++ b/test/core_test.exs
@@ -7,11 +7,12 @@ defmodule Scopes.CoreTest do
       this = self()
       ac = Actor.create(fn msg -> send(this, msg) end)
       Actor.send(ac, "Hello Actor!")
+      assert_receive "Hello Actor!"
       Actor.become(ac, fn _msg -> send(this, "Goodbye") end)
       Actor.send(ac, "Hello Actor!")
       Actor.stop(ac)
-      assert_receive "Hello Actor!"
       assert_receive "Goodbye"
+      refute_received msg, "unhandled message(s): #{inspect msg}"
     end
   end
 end
diff --git a/test/csys_test.exs b/test/csys_test.exs
new file mode 100644
index 0000000..32b9d9f
--- /dev/null
+++ b/test/csys_test.exs
@@ -0,0 +1,17 @@
+defmodule Scopes.CSysTest do
+  use ExUnit.Case, async: true
+  alias Scopes.Core.Actor
+  alias Scopes.CSys
+
+  describe "basic:" do
+    test "minimal-neural-net" do
+      this = self()
+      zero = Actor.create(CSys.neuron(
+        fn msg, _scope -> send(this, msg) end, {nil, [], this}))
+      Actor.send(zero, "Hello Zero!")
+      Actor.stop(zero)
+      assert_receive "Hello Zero!"
+      refute_received msg, "unhandled message(s): #{inspect msg}"
+    end
+  end
+end