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
|
scenario convert-dataflow [
run [
local-scope
1:address:array:character/raw <- lambda-to-mu [(add a (multiply b c))]
2:array:character/raw <- copy *1:address:array:character/raw
]
memory-should-contain [
2:array:character <- [t1 <- multiply b c
result <- add a t1]
]
]
def lambda-to-mu in:address:array:character -> out:address:array:character [
local-scope
load-ingredients
out <- copy 0
tmp:address:cell <- parse in
out <- to-mu tmp
]
exclusive-container cell [
atom:address:array:character
pair:pair
]
container pair [
first:address:cell
rest:address:cell
]
def new-atom name:address:array:character -> result:address:cell [
local-scope
load-ingredients
result <- new cell:type
*result <- merge 0/tag:atom, name
]
def new-pair a:address:cell, b:address:cell -> result:address:cell [
local-scope
load-ingredients
result <- new cell:type
*result <- merge 1/tag:pair, a/first, b/rest
]
def is-atom? x:address:cell -> result:boolean [
local-scope
load-ingredients
reply-unless x, 0/false
_, result <- maybe-convert *x, atom:variant
]
def is-pair? x:address:cell -> result:boolean [
local-scope
load-ingredients
reply-unless x, 0/false
_, result <- maybe-convert *x, pair:variant
]
scenario atom-is-not-pair [
local-scope
s:address:array:character <- new [a]
x:address:cell <- new-atom s
10:boolean/raw <- is-atom? x
11:boolean/raw <- is-pair? x
memory-should-contain [
10 <- 1
11 <- 0
]
]
scenario pair-is-not-atom [
local-scope
# construct (a . nil)
s:address:array:character <- new [a]
x:address:cell <- new-atom s
y:address:cell <- new-pair x, 0/nil
10:boolean/raw <- is-atom? y
11:boolean/raw <- is-pair? y
memory-should-contain [
10 <- 0
11 <- 1
]
]
def first x:address:cell -> result:address:cell [
local-scope
load-ingredients
pair:pair, pair?:boolean <- maybe-convert *x, pair:variant
reply-unless pair?, 0/nil
result <- get pair, first:offset
]
def rest x:address:cell -> result:address:cell [
local-scope
load-ingredients
pair:pair, pair?:boolean <- maybe-convert *x, pair:variant
reply-unless pair?, 0/nil
result <- get pair, rest:offset
]
scenario cell-operations-on-atom [
local-scope
s:address:array:character <- new [a]
x:address:cell <- new-atom s
10:address:cell/raw <- first x
11:address:cell/raw <- rest x
memory-should-contain [
10 <- 0 # first is nil
11 <- 0 # rest is nil
]
]
scenario cell-operations-on-pair [
local-scope
# construct (a . nil)
s:address:array:character <- new [a]
x:address:cell <- new-atom s
y:address:cell <- new-pair x, 0/nil
x2:address:cell <- first y
10:boolean/raw <- equal x, x2
11:address:cell/raw <- rest y
memory-should-contain [
10 <- 1 # first is correct
11 <- 0 # rest is nil
]
]
def parse in:address:array:character -> out:address:cell [
local-scope
load-ingredients
s:address:stream <- new-stream in
out, s <- parse s
]
def parse in:address:stream -> out:address:cell, in:address:stream [
local-scope
load-ingredients
b:address:buffer <- new-buffer 30
{
done?:boolean <- end-of-stream? in
break-if done?
c:character, in <- read in
b <- append b, c
loop
}
s:address:array:character <- buffer-to-array b
out <- new-atom s
]
scenario parse-single-letter-atom [
local-scope
s:address:array:character <- new [a]
x:address:cell <- parse s
s2:address:array:character, 10:boolean/raw <- maybe-convert *x, atom:variant
11:array:character/raw <- copy *s2
memory-should-contain [
10 <- 1 # parse result is an atom
11:array:character <- [a]
]
]
scenario parse-atom [
local-scope
s:address:array:character <- new [abc]
x:address:cell <- parse s
s2:address:array:character, 10:boolean/raw <- maybe-convert *x, atom:variant
11:array:character/raw <- copy *s2
memory-should-contain [
10 <- 1 # parse result is an atom
11:array:character <- [abc]
]
]
|