oops, don't automatically mixin path analysis

lib/bud.rb

@@ -74,9 +74,6 @@ module Bud
   attr_accessor :stratum_collection_map, :rewritten_strata, :no_attr_rewrite_strata
   attr_accessor :metrics
 
-  include MetaAlgebra
-  include MetaReports
-
   # options to the Bud runtime are passed in a hash, with the following keys
   # * network configuration
   #   * <tt>:ip</tt>   IP address string for this instance

lib/bud/viz_util.rb

@@ -76,26 +76,19 @@ def graph_from_instance(bud_instance, viz_name, output_base, collapse=true, fmt=
       tabinf[tab] = t[1].class.to_s
     end
 
-    begins = {}
-    bud_instance.a_preds.each do |b|
-      begins[:start] ||= {}
-      begins[:start][b.path.split("|").last] = b.fullpath.split("|").last
-      begins[:finish] = {}
-      begins[:finish][b.fullpath.split("|").last] = true
-    end
-
+    begins = get_paths(bud_instance)
     bit = bud_instance.builtin_tables 
     VizUtil.ma_tables.each_pair{|k, v| bit[k] = v}
 
     write_graphs(tabinf, bit, bud_instance.t_cycle,
                  bud_instance.t_depends, bud_instance.t_rules, viz_name,
                  output_base, fmt, collapse, bud_instance.meta_parser.depanalysis, -1, nil, 
-                 get_labels(bud_instance), get_paths(bud_instance))
-
-    return begins
+                 get_labels(bud_instance), begins)
+    begins
   end
 
   def get_paths(bud_instance)
+    return {} unless bud_instance.respond_to? :a_preds 
     begins = {}
     bud_instance.a_preds.each do |b|
       begins[:start] ||= {}
@@ -107,6 +100,7 @@ def get_paths(bud_instance)
   end
 
   def get_labels(bud_instance)
+    return {} unless bud_instance.respond_to? :lps
     # sort the paths.  sort the paths to the same destination by length.
     aps = {}
     ap_interm = bud_instance.lps.sort do |a, b|

test/tc_meta.rb

@@ -113,6 +113,9 @@ class TestStratTemporal
 
 class Divergence
   include Bud
+
+  include MetaAlgebra
+  include MetaReports
 
   state do
     interface input, :cli1, [:data]
@@ -281,7 +284,7 @@ def test_underspecified
   def test_temporal_strat
     t = TestStratTemporal.new
 
-    assert_equal(4, t.strata.length)
+    assert_equal(3, t.strata.length)
     t.tick
     assert_equal([["xyz", 1], ["xyz", 2], ["xyz", 3]], t.foo_persist.to_a.sort)
     t.tick