50 lines
1.4 KiB
Haskell
50 lines
1.4 KiB
Haskell
module Builtins where
|
|
|
|
import Code
|
|
import Control.Monad.IO.Class
|
|
import Control.Monad.Trans.State.Lazy
|
|
import qualified Data.Map as M
|
|
import Env hiding (PrlgEnv)
|
|
import Interpreter (backtrack)
|
|
import qualified Operators as O
|
|
|
|
bi = Builtin
|
|
|
|
hello =
|
|
bi $ do
|
|
liftIO $ putStrLn "hllo prlg"
|
|
return Nothing
|
|
|
|
addBuiltins :: PrlgEnv ()
|
|
addBuiltins = do
|
|
a1 <- findStruct "a" 1
|
|
a <- findAtom "a"
|
|
b <- findAtom "b"
|
|
c <- findAtom "c"
|
|
b0 <- findStruct "b" 0
|
|
any1 <- findStruct "any" 1
|
|
eq2 <- findStruct "=" 2
|
|
hello0 <- findStruct "hello" 0
|
|
fail0 <- findStruct "fail" 0
|
|
true0 <- findStruct "true" 0
|
|
prlgstate0 <- findStruct "prlgstate" 0
|
|
modify $ \s ->
|
|
s
|
|
{ defs =
|
|
M.fromList
|
|
[ (eq2, [[U (LocalRef 0 Nothing), U (LocalRef 0 Nothing), NoGoal]])
|
|
, (a1, [[U (Atom a), NoGoal], [U (Atom b), NoGoal]])
|
|
, ( b0
|
|
, [ [Goal, U (Struct a1), U (Atom c), LastCall]
|
|
, [Goal, U (Struct a1), U (Atom b), LastCall]
|
|
])
|
|
, (any1, [[U (VoidRef Nothing), NoGoal]])
|
|
, (hello0, [[Invoke hello]])
|
|
, (fail0, [[Invoke $ bi backtrack]])
|
|
, (true0, [[Invoke $ bi (pure Nothing)]])
|
|
, ( prlgstate0
|
|
, [[Invoke $ bi (get >>= liftIO . print >> pure Nothing)]])
|
|
]
|
|
, ops = [(O.xfy "," 1000), (O.xfx "=" 700)]
|
|
}
|