# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1473114231 -7200
# Node ID be858cd5d1b96fc492f5727db2e555c419f3e220
# Parent  ced5eba497fd79cbcd07a7af0f1c4ec2200b810a
Make modules providing dependencies required in modules accessing them.

diff -r ced5eba497fd -r be858cd5d1b9 importer.py
--- a/importer.py	Mon Sep 05 23:53:52 2016 +0200
+++ b/importer.py	Tue Sep 06 00:23:51 2016 +0200
@@ -352,10 +352,17 @@
             for name, ref in resolved.items():
                 d[name] = ref
 
+                # Find the providing module of this reference.
+
                 module_name = self.get_module_provider(ref)
                 if module_name:
                     self.required.add(module_name)
 
+                    # Make this module required in all accessing modules.
+
+                    for accessor_name in self.accessing_modules[module_name]:
+                        self.modules[accessor_name].required.add(module_name)
+
     def find_dependency(self, ref):
 
         "Find the ultimate dependency for 'ref'."