blob: 8bfe7f2f9667d047560a3d0830f5457fb9ff6e7b (
plain)
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
|
(.module:
[library
[lux {"-" [not and or]}
[abstract
[equivalence {"+" [Equivalence]}]]
[control
pipe
["[0]" maybe]]
[data
[collection
["[0]" array {"+" [Array]} ("[1]\[0]" mix)]]]
[math
[number
["n" nat]
["[0]" i64]]]]])
(type: .public Chunk
I64)
(def: .public chunk_size
i64.width)
(type: .public Bits
(Array Chunk))
(def: empty_chunk
Chunk
(.i64 0))
(def: .public empty
Bits
(array.empty 0))
(def: .public (size bits)
(-> Bits Nat)
(array\mix (function (_ chunk total)
(|> chunk i64.ones (n.+ total)))
0
bits))
(def: .public (capacity bits)
(-> Bits Nat)
(|> bits array.size (n.* chunk_size)))
(def: .public empty?
(-> Bits Bit)
(|>> ..size (n.= 0)))
(def: .public (bit index bits)
(-> Nat Bits Bit)
(let [[chunk_index bit_index] (n./% chunk_size index)]
(.and (n.< (array.size bits) chunk_index)
(|> (array.read! chunk_index bits)
(maybe.else empty_chunk)
(i64.one? bit_index)))))
(def: (chunk idx bits)
(-> Nat Bits Chunk)
(if (n.< (array.size bits) idx)
(|> bits (array.read! idx) (maybe.else empty_chunk))
empty_chunk))
(template [<name> <op>]
[(def: .public (<name> index input)
(-> Nat Bits Bits)
(let [[chunk_index bit_index] (n./% chunk_size index)]
(loop [size|output (n.max (++ chunk_index)
(array.size input))
output ..empty]
(let [idx|output (-- size|output)]
(if (n.> 0 size|output)
(case (|> (..chunk idx|output input)
(cond> [(new> (n.= chunk_index idx|output) [])]
[(<op> bit_index)]
... else
[])
.nat)
0
... TODO: Remove 'no_op' once new-luxc is the official compiler.
(let [no_op (recur (-- size|output) output)]
no_op)
chunk
(|> (if (same? ..empty output)
(: Bits (array.empty size|output))
output)
(array.write! idx|output (.i64 chunk))
(recur (-- size|output))))
output)))))]
[one i64.one]
[zero i64.zero]
[flipped i64.flipped]
)
(def: .public (intersects? reference sample)
(-> Bits Bits Bit)
(let [chunks (n.min (array.size reference)
(array.size sample))]
(loop [idx 0]
(if (n.< chunks idx)
(.or (|> (..chunk idx sample)
(i64.and (..chunk idx reference))
("lux i64 =" empty_chunk)
.not)
(recur (++ idx)))
#0))))
(def: .public (not input)
(-> Bits Bits)
(case (array.size input)
0
..empty
size|output
(loop [size|output size|output
output ..empty]
(let [idx (-- size|output)]
(case (|> input (..chunk idx) i64.not .nat)
0
(recur (-- size|output) output)
chunk
(if (n.> 0 size|output)
(|> (if (same? ..empty output)
(: Bits (array.empty size|output))
output)
(array.write! idx (.i64 chunk))
(recur (-- size|output)))
output))))))
(template [<name> <op>]
[(def: .public (<name> param subject)
(-> Bits Bits Bits)
(case (n.max (array.size param)
(array.size subject))
0
..empty
size|output
(loop [size|output size|output
output ..empty]
(let [idx (-- size|output)]
(if (n.> 0 size|output)
(case (|> (..chunk idx subject)
(<op> (..chunk idx param))
.nat)
0
(recur (-- size|output) output)
chunk
(|> (if (same? ..empty output)
(: Bits (array.empty size|output))
output)
(array.write! idx (.i64 chunk))
(recur (-- size|output))))
output)))))]
[and i64.and]
[or i64.or]
[xor i64.xor]
)
(implementation: .public equivalence
(Equivalence Bits)
(def: (= reference sample)
(let [size (n.max (array.size reference)
(array.size sample))]
(loop [idx 0]
(if (n.< size idx)
(.and ("lux i64 ="
(..chunk idx reference)
(..chunk idx sample))
(recur (++ idx)))
#1)))))
|
