2 files changed, 9 insertions, 13 deletions
diff --git a/src/GF/Command/Commands.hs b/src/GF/Command/Commands.hs
index 27ac61c81..2aa616739 100644
--- a/src/GF/Command/Commands.hs
+++ b/src/GF/Command/Commands.hs
@@ -384,7 +384,7 @@ allCommands cod pgf = Map.fromList [
        "p \"foo\" | pt -typecheck      -- type check parse results"
        ],
      exec = \opts -> return . fromTrees . treeOps (map prOpt opts),
-     options = treeOpOptions
+     options = treeOpOptions pgf
      }),
   ("q",  emptyCommandInfo {
      longname = "quit",
@@ -608,7 +608,7 @@ allCommands cod pgf = Map.fromList [
      app f = maybe id id (stringOp f) 
 
    treeOps opts s = foldr app s (reverse opts) where
-     app f = maybe id id (treeOp f) 
+     app f = maybe id id (treeOp pgf f) 
 
    showAsString t = case t of
      Lit (LStr s) -> s
@@ -641,7 +641,7 @@ stringOpOptions = [
        ("words","lexer that assumes tokens separated by spaces (default)")
        ]
 
-treeOpOptions = [(op,expl) | (op,(expl,_)) <- allTreeOps]
+treeOpOptions pgf = [(op,expl) | (op,(expl,_)) <- allTreeOps pgf]
 
 translationQuiz :: String -> PGF -> Language -> Language -> Category -> IO ()
 translationQuiz cod pgf ig og cat = do
diff --git a/src/GF/Command/TreeOperations.hs b/src/GF/Command/TreeOperations.hs
index f05b8dec3..0ff6ac682 100644
--- a/src/GF/Command/TreeOperations.hs
+++ b/src/GF/Command/TreeOperations.hs
@@ -2,11 +2,10 @@ module GF.Command.TreeOperations (
   treeOp,
   allTreeOps
   --typeCheck,
-  --compute
   ) where
 
 import GF.Compile.TypeCheck
-import GF.Compile.AbsCompute
+import PGF (compute)
 
 -- for conversions
 import PGF.Data
@@ -18,13 +17,13 @@ import Data.List
 
 type TreeOp = [Tree] -> [Tree]
 
-treeOp :: String -> Maybe TreeOp
-treeOp f = fmap snd $ lookup f allTreeOps
+treeOp :: PGF -> String -> Maybe TreeOp
+treeOp pgf f = fmap snd $ lookup f $ allTreeOps pgf
 
-allTreeOps :: [(String,(String,TreeOp))]
-allTreeOps = [
+allTreeOps :: PGF -> [(String,(String,TreeOp))]
+allTreeOps pgf = [
    ("compute",("compute by using semantic definitions (def)",
-      id)),
+      map (compute pgf))),
    ("smallest",("sort trees from smallest to largest, in number of nodes",
       smallest)),
    ("typecheck",("type check and solve metavariables; reject if incorrect",
@@ -34,9 +33,6 @@ allTreeOps = [
 typeCheck :: PGF -> Tree -> (Tree,(Bool,[String]))
 typeCheck pgf t = (t,(True,[]))
 
-compute :: PGF -> Tree -> Tree
-compute pgf t = t
-
 smallest :: [Tree] -> [Tree]
 smallest = sortBy (\t u -> compare (size t) (size u)) where
   size t = case t of