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make linearizeAll in the Haskell binding lazy

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krasimir
2015-04-27 16:28:45 +00:00
parent 93ab6c79d4
commit 57704a1b51
1 changed files with 15 additions and 12 deletions
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27
src/runtime/haskell-bind/PGF2.hsc
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@@ -458,19 +458,20 @@ linearize lang e = unsafePerformIO $
linearizeAll :: Concr -> Expr -> [String]
linearizeAll lang e = unsafePerformIO $
withGuPool $ \pl ->
do exn <- gu_new_exn pl
cts <- pgf_lzr_concretize (concr lang) (expr e) exn pl
failed <- gu_exn_is_raised exn
if failed
then throwExn exn
else collect cts exn pl
do pl <- gu_new_pool
exn <- gu_new_exn pl
cts <- pgf_lzr_concretize (concr lang) (expr e) exn pl
failed <- gu_exn_is_raised exn
if failed
then throwExn exn pl
else collect cts exn pl
where
collect cts exn pl = do
ctree <- alloca $ \ptr -> do gu_enum_next cts ptr pl
peek ptr
if ctree == nullPtr
then return []
then do gu_pool_free pl
return []
else do (sb,out) <- newOut pl
ctree <- pgf_lzr_wrap_linref ctree pl
pgf_lzr_linearize_simple (concr lang) ctree 0 out exn pl
@@ -479,19 +480,21 @@ linearizeAll lang e = unsafePerformIO $
then do is_nonexist <- gu_exn_caught exn gu_exn_type_PgfLinNonExist
if is_nonexist
then collect cts exn pl
else throwExn exn
else throwExn exn pl
else do lin <- gu_string_buf_freeze sb pl
s <- peekCString lin
ss <- collect cts exn pl
ss <- unsafeInterleaveIO (collect cts exn pl)
return (s:ss)
throwExn exn = do
throwExn exn pl = do
is_exn <- gu_exn_caught exn gu_exn_type_PgfExn
if is_exn
then do c_msg <- (#peek GuExn, data.data) exn
msg <- peekCString c_msg
gu_pool_free pl
throwIO (PGFError msg)
else throwIO (PGFError "The abstract tree cannot be linearized")
else do gu_pool_free pl
throwIO (PGFError "The abstract tree cannot be linearized")
alignWords :: Concr -> Expr -> [(String, [Int])]
alignWords lang e = unsafePerformIO $