From dc4c1579d48b7db8264a935be3e955b779c78ab6 Mon Sep 17 00:00:00 2001
From: Mark Haines <mark.haines@matrix.org>
Date: Thu, 31 Mar 2016 15:32:24 +0100
Subject: [PATCH] Remove outlier parameter from compute_event_context

Use event.internal_metadata.is_outlier instead.
---
 synapse/handlers/_base.py      |  3 +--
 synapse/handlers/federation.py | 11 ++++-------
 synapse/state.py               |  4 ++--
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py
index 90eabb6eb7..d407eaeee9 100644
--- a/synapse/handlers/_base.py
+++ b/synapse/handlers/_base.py
@@ -261,8 +261,7 @@ class BaseHandler(object):
 
                 context = yield state_handler.compute_event_context(
                     builder,
-                    old_state=(prev_member_event,),
-                    outlier=True
+                    old_state=(prev_member_event,)
                 )
 
         if builder.is_state():
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 4a35344d32..4049c01d26 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -1118,11 +1118,9 @@ class FederationHandler(BaseHandler):
         """
         events_to_context = {}
         for e in itertools.chain(auth_events, state):
-            ctx = yield self.state_handler.compute_event_context(
-                e, outlier=True,
-            )
-            events_to_context[e.event_id] = ctx
             e.internal_metadata.outlier = True
+            ctx = yield self.state_handler.compute_event_context(e)
+            events_to_context[e.event_id] = ctx
 
         event_map = {
             e.event_id: e
@@ -1169,7 +1167,7 @@ class FederationHandler(BaseHandler):
         )
 
         new_event_context = yield self.state_handler.compute_event_context(
-            event, old_state=state, outlier=False,
+            event, old_state=state
         )
 
         event_stream_id, max_stream_id = yield self.store.persist_event(
@@ -1181,10 +1179,9 @@ class FederationHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def _prep_event(self, origin, event, state=None, auth_events=None):
-        outlier = event.internal_metadata.is_outlier()
 
         context = yield self.state_handler.compute_event_context(
-            event, old_state=state, outlier=outlier,
+            event, old_state=state,
         )
 
         if not auth_events:
diff --git a/synapse/state.py b/synapse/state.py
index 41d32e664a..4672ada1b3 100644
--- a/synapse/state.py
+++ b/synapse/state.py
@@ -100,7 +100,7 @@ class StateHandler(object):
         defer.returnValue(state)
 
     @defer.inlineCallbacks
-    def compute_event_context(self, event, old_state=None, outlier=False):
+    def compute_event_context(self, event, old_state=None):
         """ Fills out the context with the `current state` of the graph. The
         `current state` here is defined to be the state of the event graph
         just before the event - i.e. it never includes `event`
@@ -115,7 +115,7 @@ class StateHandler(object):
         """
         context = EventContext()
 
-        if outlier:
+        if event.internal_metadata.is_outlier():
             # If this is an outlier, then we know it shouldn't have any current
             # state. Certainly store.get_current_state won't return any, and
             # persisting the event won't store the state group.