# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1490489231 -3600
# Node ID 00345bd10e178977fb012b7b93f9237d4f6a2cae
# Parent  1b4aed5f6dba307e2fcc125d2f5c01ace15d12e2
Detect names assigned locally that have already been used in a namespace.

diff -r 1b4aed5f6dba -r 00345bd10e17 inspector.py
--- a/inspector.py	Sun Mar 26 01:18:46 2017 +0100
+++ b/inspector.py	Sun Mar 26 01:47:11 2017 +0100
@@ -1249,7 +1249,13 @@
 
         "Set the local with the given 'name' and optional 'ref'."
 
-        locals = self.function_locals[self.get_namespace_path()]
+        path = self.get_namespace_path()
+        locals = self.function_locals[path]
+        used = self.names_used.get(path)
+
+        if not locals.has_key(name) and used and name in used:
+            raise InspectError("Name %s assigned locally but used previously." % name, path)
+
         multiple = not ref or locals.has_key(name) and locals[name] != ref
         locals[name] = multiple and Reference("<var>") or ref