[folks] IndividualAggregator: assert and assume that _link_map[key][i] != null

[Simon McVittie <smcv src gnome org>]

commit c438d6d00ad5e513d09315a8cbe285cd1436794d
Author: Simon McVittie <simon mcvittie collabora co uk>
Date:   Thu Mar 28 12:17:38 2013 +0000

    IndividualAggregator: assert and assume that _link_map[key][i] != null
    
    The link map's type is non-nullable, and when we add individuals
    to the link map we do so through a function that does not allow
    a null argument, so we don't need to sprinkle (!) casts around.
    
    Bug: https://bugzilla.gnome.org/show_bug.cgi?id=687161
    Signed-off-by: Simon McVittie <simon mcvittie collabora co uk>
    Reviewed-by: Philip Withnall <philip tecnocode co uk>

 folks/individual-aggregator.vala |   31 ++++++++++++++-----------------
 1 files changed, 14 insertions(+), 17 deletions(-)
---
diff --git a/folks/individual-aggregator.vala b/folks/individual-aggregator.vala
index 841ade3..705b34c 100644
--- a/folks/individual-aggregator.vala
+++ b/folks/individual-aggregator.vala
@@ -1127,19 +1127,17 @@ public class Folks.IndividualAggregator : Object
                   this._link_map.get (persona.iid);
               if (candidates != null)
                 {
-                  for (uint i = 0; i < candidates.length; i++)
+                  for (uint i = 0; i < ((!) candidates).length; i++)
                     {
-                      /* FIXME: can this really be null? */
-                      unowned Individual? candidate_ind = candidates[i];
+                      var candidate_ind = ((!) candidates)[i];
 
-                      if (candidate_ind != null &&
-                          ((!) candidate_ind).trust_level != TrustLevel.NONE &&
-                          ((!) candidate_ind).has_anti_link_with_persona (
+                      if (candidate_ind.trust_level != TrustLevel.NONE &&
+                          candidate_ind.has_anti_link_with_persona (
                               persona) == false &&
-                          candidate_inds.add ((!) candidate_ind))
+                          candidate_inds.add (candidate_ind))
                         {
                           debug ("    Found candidate individual '%s' by " +
-                              "IID '%s'.", ((!) candidate_ind).id, persona.iid);
+                              "IID '%s'.", candidate_ind.id, persona.iid);
                         }
                     }
                 }
@@ -1175,22 +1173,20 @@ public class Folks.IndividualAggregator : Object
 
                       if (candidates != null)
                         {
-                          for (uint i = 0; i < candidates.length; i++)
+                          for (uint i = 0; i < ((!) candidates).length; i++)
                             {
-                              /* FIXME: can this really be null? */
-                              unowned Individual? candidate_ind = candidates[i];
+                              var candidate_ind = ((!) candidates)[i];
 
-                              if (candidate_ind != null &&
-                                  ((!) candidate_ind).trust_level !=
+                              if (candidate_ind.trust_level !=
                                       TrustLevel.NONE &&
-                                  ((!) candidate_ind).
+                                  candidate_ind.
                                       has_anti_link_with_persona (
                                           persona) == false &&
-                                  candidate_inds.add ((!) candidate_ind))
+                                  candidate_inds.add (candidate_ind))
                                 {
                                   debug ("    Found candidate individual '%s'" +
                                       " by linkable property '%s' = '%s'.",
-                                      ((!) candidate_ind).id, prop_name,
+                                      candidate_ind.id, prop_name,
                                       prop_linking_value);
                                 }
                             }
@@ -1376,7 +1372,7 @@ public class Folks.IndividualAggregator : Object
       if (inds == null)
         {
           inds = new GenericArray<Individual> ();
-          this._link_map.insert (key, inds);
+          this._link_map.insert (key, (!) inds);
         }
       else
         {
@@ -1666,6 +1662,7 @@ public class Folks.IndividualAggregator : Object
               for (uint i = 0; i < inds.length; i++)
                 {
                   var individual = inds[i];
+                  assert (individual != null);
 
                   if (this._individuals.get (individual.id) != individual)
                     {