Don’t allocate a pointless heap cell.

semantic-core/src/Analysis/FlowInsensitive.hs

@@ -65,8 +65,8 @@ cacheTerm eval term = do
       result <- eval term
       result <$ modify (Map.insertWith (<>) term (Set.singleton (result :: a)))
 
-runHeap :: name -> StateC (Heap name a) m b -> m (Heap name a, b)
-runHeap addr m = runState (Map.singleton addr Set.empty) m
+runHeap :: StateC (Heap name a) m b -> m (Heap name a, b)
+runHeap m = runState Map.empty m
 
 -- | Fold a collection by mapping each element onto an 'Alternative' action.
 foldMapA :: (Alternative m, Foldable t) => (b -> m a) -> t b -> m a

semantic-core/src/Analysis/ImportGraph.hs

@@ -52,7 +52,7 @@ importGraph :: [File (Term Core.Core User)] -> (Heap User Value, [File (Either (
 importGraph
   = run
   . runFresh
-  . runHeap "__semantic_root"
+  . runHeap
   . traverse runFile
 
 runFile :: ( Carrier sig m

semantic-core/src/Analysis/ScopeGraph.hs

@@ -58,7 +58,7 @@ scopeGraph :: [File (Term Core.Core User)] -> (Heap User Value, [File (Either (L
 scopeGraph
   = run
   . runFresh
-  . runHeap "__semantic_root"
+  . runHeap
   . traverse runFile
 
 runFile

semantic-core/src/Analysis/Typecheck.hs

@@ -90,7 +90,7 @@ typecheckingFlowInsensitive :: [File (Term Core.Core User)] -> (Heap User (Term
 typecheckingFlowInsensitive
   = run
   . runFresh
-  . runHeap "__semantic_root"
+  . runHeap
   . fmap (fmap (fmap (fmap generalize)))
   . traverse runFile