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https://github.com/GrammaticalFramework/gf-core.git
synced 2026-05-21 00:52:51 -06:00
40 lines
1008 B
Haskell
40 lines
1008 B
Haskell
{-# LANGUAGE ForeignFunctionInterface, MagicHash #-}
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module SG.FFI where
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import Foreign
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import Foreign.C
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import PGF2.FFI
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import GHC.Ptr
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import Data.Int
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data SgSG
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type SgId = Int64
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foreign import ccall "sg/sg.h sg_open"
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sg_open :: CString -> Ptr GuExn -> IO (Ptr SgSG)
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foreign import ccall "sg/sg.h sg_close"
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sg_close :: Ptr SgSG -> Ptr GuExn -> IO ()
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foreign import ccall "sg/sg.h sg_begin_trans"
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sg_begin_trans :: Ptr SgSG -> Ptr GuExn -> IO ()
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foreign import ccall "sg/sg.h sg_commit"
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sg_commit :: Ptr SgSG -> Ptr GuExn -> IO ()
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foreign import ccall "sg/sg.h sg_rollback"
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sg_rollback :: Ptr SgSG -> Ptr GuExn -> IO ()
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foreign import ccall "sg/sg.h sg_insert_expr"
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sg_insert_expr :: Ptr SgSG -> PgfExpr -> Ptr GuExn -> IO SgId
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foreign import ccall "sg/sg.h sg_insert_triple"
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sg_insert_triple :: Ptr SgSG -> SgTriple -> Ptr GuExn -> IO SgId
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type SgTriple = Ptr SgId
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withTriple :: (SgTriple -> IO a) -> IO a
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withTriple = allocaArray 3
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gu_exn_type_SgError = Ptr "SgError"# :: CString
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