1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
|
{-# OPTIONS -#include "HsBase.h" #-}
-----------------------------------------------------------------------------
-- |
-- Module : Data.Array.IO.Internal
-- Copyright : (c) The University of Glasgow 2001
-- License : BSD-style (see the file libraries/base/LICENSE)
--
-- Maintainer : libraries@haskell.org
-- Stability : experimental
-- Portability : non-portable
--
-- Mutable boxed and unboxed arrays in the IO monad.
--
-----------------------------------------------------------------------------
-- #hide
module Data.Array.IO.Internals (
IOArray(..), -- instance of: Eq, Typeable
IOUArray(..), -- instance of: Eq, Typeable
castIOUArray, -- :: IOUArray ix a -> IO (IOUArray ix b)
) where
import Prelude
import Data.Array.MArray
import Data.Int
import Data.Word
import Data.Typeable
#ifdef __HUGS__
import Hugs.IOArray
#endif
import Control.Monad.ST ( RealWorld, stToIO )
import Foreign.Ptr ( Ptr, FunPtr )
import Foreign.StablePtr ( StablePtr )
import Data.Array.Base
#ifdef __GLASGOW_HASKELL__
import GHC.IOBase
import GHC.Base
#endif /* __GLASGOW_HASKELL__ */
iOArrayTc :: TyCon
iOArrayTc = mkTyCon "IOArray"
instance (Typeable a, Typeable b) => Typeable (IOArray a b) where
typeOf a = mkAppTy iOArrayTc [typeOf ((undefined :: IOArray a b -> a) a),
typeOf ((undefined :: IOArray a b -> b) a)]
-----------------------------------------------------------------------------
-- | Instance declarations for 'IOArray's
#ifdef __GLASGOW_HASKELL__
instance HasBounds IOArray where
{-# INLINE bounds #-}
bounds (IOArray marr) = bounds marr
#endif
#ifdef __HUGS__
instance HasBounds IOArray where
bounds = boundsIOArray
#endif
instance MArray IOArray e IO where
newArray = newIOArray
unsafeRead = unsafeReadIOArray
unsafeWrite = unsafeWriteIOArray
-----------------------------------------------------------------------------
-- Flat unboxed mutable arrays (IO monad)
-- | Mutable, unboxed, strict arrays in the 'IO' monad. The type
-- arguments are as follows:
--
-- * @i@: the index type of the array (should be an instance of 'Ix')
--
-- * @e@: the element type of the array. Only certain element types
-- are supported: see "Data.Array.MArray" for a list of instances.
--
newtype IOUArray i e = IOUArray (STUArray RealWorld i e)
iOUArrayTc :: TyCon
iOUArrayTc = mkTyCon "IOUArray"
instance (Typeable a, Typeable b) => Typeable (IOUArray a b) where
typeOf a = mkAppTy iOUArrayTc [typeOf ((undefined :: IOUArray a b -> a) a),
typeOf ((undefined :: IOUArray a b -> b) a)]
instance HasBounds IOUArray where
{-# INLINE bounds #-}
bounds (IOUArray marr) = bounds marr
instance MArray IOUArray Bool IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Char IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
#ifdef __GLASGOW_HASKELL__
instance MArray IOUArray Word IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
#endif
instance MArray IOUArray (Ptr a) IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray (FunPtr a) IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Float IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Double IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray (StablePtr a) IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int8 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int16 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int32 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int64 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word8 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word16 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word32 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word64 IO where
{-# INLINE newArray #-}
newArray lu init = stToIO $ do
marr <- newArray lu init; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ lu = stToIO $ do
marr <- newArray_ lu; return (IOUArray marr)
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
-- | Casts an 'IOUArray' with one element type into one with a
-- different element type. All the elements of the resulting array
-- are undefined (unless you know what you\'re doing...).
castIOUArray :: IOUArray ix a -> IO (IOUArray ix b)
castIOUArray (IOUArray marr) = stToIO $ do
marr' <- castSTUArray marr
return (IOUArray marr')
|
