m1n1.adt: Implement 'in' keyword on ADT nodes

So that one can check for children, like:

  >>> "/arm-io/aic" in u.adt
  True

Signed-off-by: Martin Povišer <[email protected]>

Author: povik

proxyclient/m1n1/adt.py

@@ -470,6 +470,20 @@ def __delitem__(self, item):
 
         del self._children[item]
 
+    def __contains__(self, item):
+        if isinstance(item, str):
+            while item.startswith("/"):
+                item = item[1:]
+            if "/" in item:
+                a, b = item.split("/", 1)
+                return b in self[a]
+            for c in self._children:
+                if c.name == item:
+                    return True
+            return False
+
+        return item in self._children
+
     def __getattr__(self, attr):
         attr = attr.replace("_", "-")
         attr = attr.replace("--", "_")

proxyclient/m1n1/proxyutils.py

@@ -415,6 +415,8 @@ def __setitem__(self, item, value):
          self._adt[item] = value
     def __delitem__(self, item):
          del self._adt[item]
+    def __contains__(self, item):
+        return item in self._adt
     def __getattr__(self, attr):
         return getattr(self._adt, attr)
     def __setattr__(self, attr, value):