# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1479918232 -3600
# Node ID fbef93224a106ff703871f96c3e549181dd893b3
# Parent  dfbc750d3fce43ad1619d9c678e197e1d64a266b
Fixed assignments involving invocations that provide unknown results.

diff -r dfbc750d3fce -r fbef93224a10 inspector.py
--- a/inspector.py	Wed Nov 23 16:19:06 2016 +0100
+++ b/inspector.py	Wed Nov 23 17:23:52 2016 +0100
@@ -27,7 +27,7 @@
 from referencing import Reference
 from resolving import NameResolving
 from results import AccessRef, InstanceRef, InvocationRef, LiteralSequenceRef, \
-                    LocalNameRef, NameRef, ResolvedNameRef
+                    LocalNameRef, NameRef, ResolvedNameRef, VariableRef
 import compiler
 import sys
 
@@ -757,7 +757,11 @@
             elif isinstance(name_ref, NameRef):
                 return InvocationRef(name_ref)
 
-            return None
+            # Provide a general reference to indicate that something is produced
+            # by the invocation, useful for retaining assignment expression
+            # details.
+
+            return VariableRef()
 
         finally:
             self.deallocate_arguments(path, n.args)
diff -r dfbc750d3fce -r fbef93224a10 results.py
--- a/results.py	Wed Nov 23 16:19:06 2016 +0100
+++ b/results.py	Wed Nov 23 17:23:52 2016 +0100
@@ -30,12 +30,24 @@
     def is_name(self):
         return False
 
+    def reference(self):
+        return None
+
+    def get_name(self):
+        return None
+
     def get_origin(self):
         return None
 
-    def reference(self):
+    def static(self):
         return None
 
+    def final(self):
+        return None
+
+    def has_kind(self, kinds):
+        return False
+
 class AccessRef(Result):
 
     """
@@ -162,4 +174,11 @@
     def __repr__(self):
         return "LiteralSequenceRef(%r, %r, %r, %r)" % (self.name, self.ref, self.node, self.items)
 
+class VariableRef(Result):
+
+    "A variable reference."
+
+    def __repr__(self):
+        return "VariableRef()"
+
 # vim: tabstop=4 expandtab shiftwidth=4