1 {-# OPTIONS -#include "HsBase.h" #-}
2 -----------------------------------------------------------------------------
4 -- Module : Data.Array.IO.Internal
5 -- Copyright : (c) The University of Glasgow 2001
6 -- License : BSD-style (see the file libraries/base/LICENSE)
8 -- Maintainer : libraries@haskell.org
9 -- Stability : experimental
10 -- Portability : non-portable
12 -- Mutable boxed and unboxed arrays in the IO monad.
14 -----------------------------------------------------------------------------
16 module Data.Array.IO.Internals (
17 IOArray(..), -- instance of: Eq, Typeable
18 IOUArray(..), -- instance of: Eq, Typeable
23 import Data.Array.MArray
30 import Hugs.IOExts ( unsafeCoerce )
31 import Data.Array.Storable
34 #ifdef __GLASGOW_HASKELL__
35 import Foreign.Ptr ( Ptr, FunPtr )
36 import Foreign.StablePtr ( StablePtr )
37 import Data.Array.Base
39 import GHC.Arr ( STArray )
42 #endif /* __GLASGOW_HASKELL__ */
45 instance HasBounds IOArray where
46 bounds = boundsIOArray
48 instance MArray IOArray e IO where
50 unsafeRead = unsafeReadIOArray
51 unsafeWrite = unsafeWriteIOArray
53 type IOUArray = StorableArray
57 iOArrayTc = mkTyCon "IOArray"
59 instance (Typeable a, Typeable b) => Typeable (IOArray a b) where
60 typeOf a = mkAppTy iOArrayTc [typeOf ((undefined :: IOArray a b -> a) a),
61 typeOf ((undefined :: IOArray a b -> b) a)]
63 #ifdef __GLASGOW_HASKELL__
64 -- GHC only to the end of file
66 -----------------------------------------------------------------------------
67 -- | Mutable, boxed, non-strict arrays in the 'IO' monad. The type
68 -- arguments are as follows:
70 -- * @i@: the index type of the array (should be an instance of @Ix@)
72 -- * @e@: the element type of the array.
74 newtype IOArray i e = IOArray (STArray RealWorld i e) deriving Eq
76 instance HasBounds IOArray where
78 bounds (IOArray marr) = bounds marr
80 instance MArray IOArray e IO where
81 {-# INLINE newArray #-}
82 newArray lu init = stToIO $ do
83 marr <- newArray lu init; return (IOArray marr)
84 {-# INLINE newArray_ #-}
85 newArray_ lu = stToIO $ do
86 marr <- newArray_ lu; return (IOArray marr)
87 {-# INLINE unsafeRead #-}
88 unsafeRead (IOArray marr) i = stToIO (unsafeRead marr i)
89 {-# INLINE unsafeWrite #-}
90 unsafeWrite (IOArray marr) i e = stToIO (unsafeWrite marr i e)
92 -----------------------------------------------------------------------------
93 -- Flat unboxed mutable arrays (IO monad)
95 -- | Mutable, unboxed, strict arrays in the 'IO' monad. The type
96 -- arguments are as follows:
98 -- * @i@: the index type of the array (should be an instance of @Ix@)
100 -- * @e@: the element type of the array. Only certain element types
101 -- are supported: see 'MArray' for a list of instances.
103 newtype IOUArray i e = IOUArray (STUArray RealWorld i e) deriving Eq
106 iOUArrayTc = mkTyCon "IOUArray"
108 instance (Typeable a, Typeable b) => Typeable (IOUArray a b) where
109 typeOf a = mkAppTy iOUArrayTc [typeOf ((undefined :: IOUArray a b -> a) a),
110 typeOf ((undefined :: IOUArray a b -> b) a)]
112 instance HasBounds IOUArray where
113 {-# INLINE bounds #-}
114 bounds (IOUArray marr) = bounds marr
116 instance MArray IOUArray Bool IO where
117 {-# INLINE newArray #-}
118 newArray lu init = stToIO $ do
119 marr <- newArray lu init; return (IOUArray marr)
120 {-# INLINE newArray_ #-}
121 newArray_ lu = stToIO $ do
122 marr <- newArray_ lu; return (IOUArray marr)
123 {-# INLINE unsafeRead #-}
124 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
125 {-# INLINE unsafeWrite #-}
126 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
128 instance MArray IOUArray Char IO where
129 {-# INLINE newArray #-}
130 newArray lu init = stToIO $ do
131 marr <- newArray lu init; return (IOUArray marr)
132 {-# INLINE newArray_ #-}
133 newArray_ lu = stToIO $ do
134 marr <- newArray_ lu; return (IOUArray marr)
135 {-# INLINE unsafeRead #-}
136 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
137 {-# INLINE unsafeWrite #-}
138 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
140 instance MArray IOUArray Int IO where
141 {-# INLINE newArray #-}
142 newArray lu init = stToIO $ do
143 marr <- newArray lu init; return (IOUArray marr)
144 {-# INLINE newArray_ #-}
145 newArray_ lu = stToIO $ do
146 marr <- newArray_ lu; return (IOUArray marr)
147 {-# INLINE unsafeRead #-}
148 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
149 {-# INLINE unsafeWrite #-}
150 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
152 instance MArray IOUArray Word IO where
153 {-# INLINE newArray #-}
154 newArray lu init = stToIO $ do
155 marr <- newArray lu init; return (IOUArray marr)
156 {-# INLINE newArray_ #-}
157 newArray_ lu = stToIO $ do
158 marr <- newArray_ lu; return (IOUArray marr)
159 {-# INLINE unsafeRead #-}
160 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
161 {-# INLINE unsafeWrite #-}
162 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
164 instance MArray IOUArray (Ptr a) IO where
165 {-# INLINE newArray #-}
166 newArray lu init = stToIO $ do
167 marr <- newArray lu init; return (IOUArray marr)
168 {-# INLINE newArray_ #-}
169 newArray_ lu = stToIO $ do
170 marr <- newArray_ lu; return (IOUArray marr)
171 {-# INLINE unsafeRead #-}
172 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
173 {-# INLINE unsafeWrite #-}
174 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
176 instance MArray IOUArray (FunPtr a) IO where
177 {-# INLINE newArray #-}
178 newArray lu init = stToIO $ do
179 marr <- newArray lu init; return (IOUArray marr)
180 {-# INLINE newArray_ #-}
181 newArray_ lu = stToIO $ do
182 marr <- newArray_ lu; return (IOUArray marr)
183 {-# INLINE unsafeRead #-}
184 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
185 {-# INLINE unsafeWrite #-}
186 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
188 instance MArray IOUArray Float IO where
189 {-# INLINE newArray #-}
190 newArray lu init = stToIO $ do
191 marr <- newArray lu init; return (IOUArray marr)
192 {-# INLINE newArray_ #-}
193 newArray_ lu = stToIO $ do
194 marr <- newArray_ lu; return (IOUArray marr)
195 {-# INLINE unsafeRead #-}
196 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
197 {-# INLINE unsafeWrite #-}
198 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
200 instance MArray IOUArray Double IO where
201 {-# INLINE newArray #-}
202 newArray lu init = stToIO $ do
203 marr <- newArray lu init; return (IOUArray marr)
204 {-# INLINE newArray_ #-}
205 newArray_ lu = stToIO $ do
206 marr <- newArray_ lu; return (IOUArray marr)
207 {-# INLINE unsafeRead #-}
208 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
209 {-# INLINE unsafeWrite #-}
210 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
212 instance MArray IOUArray (StablePtr a) IO where
213 {-# INLINE newArray #-}
214 newArray lu init = stToIO $ do
215 marr <- newArray lu init; return (IOUArray marr)
216 {-# INLINE newArray_ #-}
217 newArray_ lu = stToIO $ do
218 marr <- newArray_ lu; return (IOUArray marr)
219 {-# INLINE unsafeRead #-}
220 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
221 {-# INLINE unsafeWrite #-}
222 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
224 instance MArray IOUArray Int8 IO where
225 {-# INLINE newArray #-}
226 newArray lu init = stToIO $ do
227 marr <- newArray lu init; return (IOUArray marr)
228 {-# INLINE newArray_ #-}
229 newArray_ lu = stToIO $ do
230 marr <- newArray_ lu; return (IOUArray marr)
231 {-# INLINE unsafeRead #-}
232 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
233 {-# INLINE unsafeWrite #-}
234 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
236 instance MArray IOUArray Int16 IO where
237 {-# INLINE newArray #-}
238 newArray lu init = stToIO $ do
239 marr <- newArray lu init; return (IOUArray marr)
240 {-# INLINE newArray_ #-}
241 newArray_ lu = stToIO $ do
242 marr <- newArray_ lu; return (IOUArray marr)
243 {-# INLINE unsafeRead #-}
244 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
245 {-# INLINE unsafeWrite #-}
246 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
248 instance MArray IOUArray Int32 IO where
249 {-# INLINE newArray #-}
250 newArray lu init = stToIO $ do
251 marr <- newArray lu init; return (IOUArray marr)
252 {-# INLINE newArray_ #-}
253 newArray_ lu = stToIO $ do
254 marr <- newArray_ lu; return (IOUArray marr)
255 {-# INLINE unsafeRead #-}
256 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
257 {-# INLINE unsafeWrite #-}
258 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
260 instance MArray IOUArray Int64 IO where
261 {-# INLINE newArray #-}
262 newArray lu init = stToIO $ do
263 marr <- newArray lu init; return (IOUArray marr)
264 {-# INLINE newArray_ #-}
265 newArray_ lu = stToIO $ do
266 marr <- newArray_ lu; return (IOUArray marr)
267 {-# INLINE unsafeRead #-}
268 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
269 {-# INLINE unsafeWrite #-}
270 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
272 instance MArray IOUArray Word8 IO where
273 {-# INLINE newArray #-}
274 newArray lu init = stToIO $ do
275 marr <- newArray lu init; return (IOUArray marr)
276 {-# INLINE newArray_ #-}
277 newArray_ lu = stToIO $ do
278 marr <- newArray_ lu; return (IOUArray marr)
279 {-# INLINE unsafeRead #-}
280 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
281 {-# INLINE unsafeWrite #-}
282 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
284 instance MArray IOUArray Word16 IO where
285 {-# INLINE newArray #-}
286 newArray lu init = stToIO $ do
287 marr <- newArray lu init; return (IOUArray marr)
288 {-# INLINE newArray_ #-}
289 newArray_ lu = stToIO $ do
290 marr <- newArray_ lu; return (IOUArray marr)
291 {-# INLINE unsafeRead #-}
292 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
293 {-# INLINE unsafeWrite #-}
294 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
296 instance MArray IOUArray Word32 IO where
297 {-# INLINE newArray #-}
298 newArray lu init = stToIO $ do
299 marr <- newArray lu init; return (IOUArray marr)
300 {-# INLINE newArray_ #-}
301 newArray_ lu = stToIO $ do
302 marr <- newArray_ lu; return (IOUArray marr)
303 {-# INLINE unsafeRead #-}
304 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
305 {-# INLINE unsafeWrite #-}
306 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
308 instance MArray IOUArray Word64 IO where
309 {-# INLINE newArray #-}
310 newArray lu init = stToIO $ do
311 marr <- newArray lu init; return (IOUArray marr)
312 {-# INLINE newArray_ #-}
313 newArray_ lu = stToIO $ do
314 marr <- newArray_ lu; return (IOUArray marr)
315 {-# INLINE unsafeRead #-}
316 unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
317 {-# INLINE unsafeWrite #-}
318 unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
320 #endif /* __GLASGOW_HASKELL__ */