refactor the PGF.Expr type and the evaluation of abstract expressions

This commit is contained in:
krasimir
2009-05-20 21:03:56 +00:00
parent f9574dcf77
commit e5399f2d0e
32 changed files with 245 additions and 360 deletions

View File

@@ -600,11 +600,11 @@ allCommands cod env@(pgf, mos) = Map.fromList [
exec = \opts arg -> do
case arg of
[Fun id []] -> case Map.lookup id (funs (abstract pgf)) of
Just (ty,def) -> return $ fromString $
Just (ty,eqs) -> return $ fromString $
render (text "fun" <+> text (prCId id) <+> colon <+> ppType 0 ty $$
if def == EEq []
if null eqs
then empty
else text "def" <+> text (prCId id) <+> char '=' <+> ppExpr 0 def)
else text "def" <+> vcat [text (prCId id) <+> hsep (map (ppPatt 9) patts) <+> char '=' <+> ppExpr 0 res | Equ patts res <- eqs])
Nothing -> case Map.lookup id (cats (abstract pgf)) of
Just hyps -> do return $ fromString $
render (text "cat" <+> text (prCId id) <+> hsep (map ppHypo hyps) $$

View File

@@ -4,10 +4,8 @@ module GF.Command.TreeOperations (
) where
import GF.Compile.TypeCheck
import PGF (compute,paraphrase,typecheck)
import PGF
-- for conversions
import PGF.Data
--import GF.Compile.GrammarToGFCC (mkType,mkExp)
import qualified GF.Grammar.Grammar as G
import qualified GF.Grammar.Macros as M
@@ -22,7 +20,7 @@ treeOp pgf f = fmap snd $ lookup f $ allTreeOps pgf
allTreeOps :: PGF -> [(String,(String,TreeOp))]
allTreeOps pgf = [
("compute",("compute by using semantic definitions (def)",
map (compute pgf))),
map (expr2tree pgf . tree2expr))),
("paraphrase",("paraphrase by using semantic definitions (def)",
nub . concatMap (paraphrase pgf))),
("smallest",("sort trees from smallest to largest, in number of nodes",