provenience 0.1.2.2 → 0.1.2.3

raw patch · 2 files changed

+6/−4 lines, 2 filesPVP ok

version bump matches the API change (PVP)

API changes (from Hackage documentation)

Files

• provenience.cabal +2/−2
• src/Control/Provenience.hs +4/−2

@@ -1,5 +1,5 @@ name:                provenience-version:             0.1.2.2+version:             0.1.2.3 synopsis:            Computations that automatically track data dependencies description:         see README.md license:             GPL-3@@ -19,7 +19,7 @@   exposed-modules:     Control.Provenience                      , Data.Representation                      , Data.Spreadsheet--- tested against stackage lts-6.35 up to lts-14.22+-- tested against stackage lts-6.35 up to lts-16.31   build-depends:       base >= 4.7 && < 5                      , mtl >= 2.2.1 && <= 2.2.2                      , fgl >= 5.5.3.1 && < 5.8

@@ -328,8 +328,10 @@             HorizontalRule,
             Div ("",["description"],[]) [description desc],
             Div ("",["valueRendering"],[]) [valueRendering desc]]
-    (n0,n1) = nodeRange (dependencyGraph variables) 
-    in divVars (nodeRange (dependencyGraph variables)) (map renderVariable nodelist)
+    gr = dependencyGraph variables
+    in if noNodes gr > 0
+        then divVars (nodeRange gr) (map renderVariable nodelist)
+        else Null -- nodeRange is a partial function!
 
 -- | When the alternative representation is in terms of spreadsheet rows, 
 -- we can assemble the 'VariableStore' into a spreadheet.