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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - 058shape_shifting_container.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v1">
<meta name="syntax" content="cpp">
<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-color: #080808; }
body { font-family: monospace; color: #eeeeee; background-color: #080808; }
* { font-size: 1.05em; }
.traceContains { color: #008000; }
.Special { color: #ff6060; }
.cSpecial { color: #008000; }
.Constant { color: #00a0a0; }
.Comment { color: #9090ff; }
.Delimiter { color: #a04060; }
.SalientComment { color: #00ffff; }
.Identifier { color: #804000; }
-->
</style>
<script type='text/javascript'>
<!--
-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="SalientComment">//:: Container definitions can contain type parameters.</span>
<span class="Comment">//:</span>
<span class="Comment">//: Extremely hacky initial implementation. We still don't support the full</span>
<span class="Comment">//: complexity of type trees inside container definitions. So for example you</span>
<span class="Comment">//: can't have a container element with this type:</span>
<span class="Comment">//: (map (array address character) (list number))</span>
<span class="Delimiter">:(scenario size_of_shape_shifting_container)</span>
container foo:_t [
x:_t
y:number
]
recipe main [
<span class="Constant">1</span>:foo:number<span class="Special"> <- </span>merge <span class="Constant">12</span><span class="Delimiter">,</span> <span class="Constant">13</span>
<span class="Constant">3</span>:foo:point<span class="Special"> <- </span>merge <span class="Constant">14</span><span class="Delimiter">,</span> <span class="Constant">15</span><span class="Delimiter">,</span> <span class="Constant">16</span>
]
<span class="traceContains">+mem: storing 12 in location 1</span>
<span class="traceContains">+mem: storing 13 in location 2</span>
<span class="traceContains">+mem: storing 14 in location 3</span>
<span class="traceContains">+mem: storing 15 in location 4</span>
<span class="traceContains">+mem: storing 16 in location 5</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Comment">// We'll use large type ordinals to mean "the following type of the variable".</span>
const int START_TYPE_INGREDIENTS = <span class="Constant">2000</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Test Run Initialization")</span>
assert<span class="Delimiter">(</span>Next_type_ordinal < START_TYPE_INGREDIENTS<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End type_info Fields")</span>
map<string<span class="Delimiter">,</span> type_ordinal> type_ingredient_names<span class="Delimiter">;</span>
<span class="Comment">//: Suppress unknown type checks in shape-shifting containers.</span>
<span class="Delimiter">:(before "Check Container Field Types(info)")</span>
if <span class="Delimiter">(</span>!info<span class="Delimiter">.</span>type_ingredient_names<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End container Name Refinements")</span>
if <span class="Delimiter">(</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">':'</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"container has type ingredients; parsing"</span> << end<span class="Delimiter">();</span>
read_type_ingredients<span class="Delimiter">(</span>name<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
void read_type_ingredients<span class="Delimiter">(</span>string& name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
string save_name = name<span class="Delimiter">;</span>
istringstream in<span class="Delimiter">(</span>save_name<span class="Delimiter">);</span>
name = slurp_until<span class="Delimiter">(</span>in<span class="Delimiter">,</span> <span class="Constant">':'</span><span class="Delimiter">);</span>
if <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> name<span class="Delimiter">)</span> || get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> name<span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span>
put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> name<span class="Delimiter">,</span> Next_type_ordinal++<span class="Delimiter">);</span>
type_info& info = get_or_insert<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> name<span class="Delimiter">));</span>
long long int next_type_ordinal = START_TYPE_INGREDIENTS<span class="Delimiter">;</span>
while <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span>
string curr = slurp_until<span class="Delimiter">(</span>in<span class="Delimiter">,</span> <span class="Constant">':'</span><span class="Delimiter">);</span>
if <span class="Delimiter">(</span>info<span class="Delimiter">.</span>type_ingredient_names<span class="Delimiter">.</span>find<span class="Delimiter">(</span>curr<span class="Delimiter">)</span> != info<span class="Delimiter">.</span>type_ingredient_names<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
raise_error << <span class="Constant">"can't repeat type ingredient names in a single container definition</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
put<span class="Delimiter">(</span>info<span class="Delimiter">.</span>type_ingredient_names<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> next_type_ordinal++<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End insert_container Special Uses(type_name)")</span>
<span class="Comment">// check for use of type ingredients</span>
if <span class="Delimiter">(</span>type_name<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'_'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
*curr_type = new type_tree<span class="Delimiter">(</span>get<span class="Delimiter">(</span>info<span class="Delimiter">.</span>type_ingredient_names<span class="Delimiter">,</span> type_name<span class="Delimiter">));</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">" type: "</span> << get<span class="Delimiter">(</span>info<span class="Delimiter">.</span>type_ingredient_names<span class="Delimiter">,</span> type_name<span class="Delimiter">)</span> << end<span class="Delimiter">();</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Container Type Checks")</span>
if <span class="Delimiter">(</span>type<span class="Delimiter">-></span>value >= START_TYPE_INGREDIENTS
&& <span class="Delimiter">(</span>type<span class="Delimiter">-></span>value - START_TYPE_INGREDIENTS<span class="Delimiter">)</span> < SIZE<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> type<span class="Delimiter">-></span>value<span class="Delimiter">).</span>type_ingredient_names<span class="Delimiter">))</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End size_of(type) Container Cases")</span>
if <span class="Delimiter">(</span>t<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>value >= START_TYPE_INGREDIENTS<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"type"</span><span class="Delimiter">)</span> << <span class="Constant">"checking size of type ingredient</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
long long int size = size_of_type_ingredient<span class="Delimiter">(</span>t<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> type<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>!size<span class="Delimiter">)</span>
raise_error << <span class="Constant">"illegal type '"</span> << debug_string<span class="Delimiter">(</span>type<span class="Delimiter">)</span> << <span class="Constant">"' seems to be missing a type ingredient or three</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
result += size<span class="Delimiter">;</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">// shape-shifting version of size_of</span>
long long int size_of_type_ingredient<span class="Delimiter">(</span>const type_tree* element_template<span class="Delimiter">,</span> const type_tree* rest_of_use<span class="Delimiter">)</span> <span class="Delimiter">{</span>
long long int type_ingredient_index = element_template<span class="Delimiter">-></span>value - START_TYPE_INGREDIENTS<span class="Delimiter">;</span>
const type_tree* curr = rest_of_use<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>!curr<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>type_ingredient_index > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
--type_ingredient_index<span class="Delimiter">;</span>
curr = curr<span class="Delimiter">-></span>right<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>!curr<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
assert<span class="Delimiter">(</span>curr<span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>!curr<span class="Delimiter">-></span>left<span class="Delimiter">);</span> <span class="Comment">// unimplemented</span>
if <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> curr<span class="Delimiter">-></span>value<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"type"</span><span class="Delimiter">)</span> << <span class="Constant">"type deduced to be "</span> << get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> curr<span class="Delimiter">-></span>value<span class="Delimiter">).</span>name << <span class="Constant">"$"</span> << end<span class="Delimiter">();</span>
type_tree tmp<span class="Delimiter">(</span>curr<span class="Delimiter">-></span>value<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>curr<span class="Delimiter">-></span>right<span class="Delimiter">)</span>
tmp<span class="Delimiter">.</span>right = new type_tree<span class="Delimiter">(</span>*curr<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
<span class="Identifier">return</span> size_of<span class="Delimiter">(</span>&tmp<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario get_on_shape_shifting_container)</span>
container foo:_t [
x:_t
y:number
]
recipe main [
<span class="Constant">1</span>:foo:point<span class="Special"> <- </span>merge <span class="Constant">14</span><span class="Delimiter">,</span> <span class="Constant">15</span><span class="Delimiter">,</span> <span class="Constant">16</span>
<span class="Constant">2</span>:number<span class="Special"> <- </span>get <span class="Constant">1</span>:foo:point<span class="Delimiter">,</span> y:offset
]
<span class="traceContains">+mem: storing 16 in location 2</span>
<span class="Delimiter">:(before "End GET field Cases")</span>
const type_tree* type = get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> base_type<span class="Delimiter">).</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>type<span class="Delimiter">-></span>value >= START_TYPE_INGREDIENTS<span class="Delimiter">)</span> <span class="Delimiter">{</span>
long long int size = size_of_type_ingredient<span class="Delimiter">(</span>type<span class="Delimiter">,</span> base<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>!size<span class="Delimiter">)</span>
raise_error << <span class="Constant">"illegal field type '"</span> << debug_string<span class="Delimiter">(</span>type<span class="Delimiter">)</span> << <span class="Constant">"' seems to be missing a type ingredient or three</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
src += size<span class="Delimiter">;</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario get_on_shape_shifting_container_2)</span>
container foo:_t [
x:_t
y:number
]
recipe main [
<span class="Constant">1</span>:foo:point<span class="Special"> <- </span>merge <span class="Constant">14</span><span class="Delimiter">,</span> <span class="Constant">15</span><span class="Delimiter">,</span> <span class="Constant">16</span>
<span class="Constant">2</span>:point<span class="Special"> <- </span>get <span class="Constant">1</span>:foo:point<span class="Delimiter">,</span> x:offset
]
<span class="traceContains">+mem: storing 14 in location 2</span>
<span class="traceContains">+mem: storing 15 in location 3</span>
<span class="Delimiter">:(scenario get_on_shape_shifting_container_3)</span>
container foo:_t [
x:_t
y:number
]
recipe main [
<span class="Constant">1</span>:foo:address:point<span class="Special"> <- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">48</span> <span class="Comment"># unsafe</span>
<span class="Constant">2</span>:address:point<span class="Special"> <- </span>get <span class="Constant">1</span>:foo:address:point<span class="Delimiter">,</span> x:offset
]
<span class="traceContains">+mem: storing 34 in location 2</span>
<span class="Delimiter">:(before "End element_type Special-cases")</span>
if <span class="Delimiter">(</span>contains_type_ingredient<span class="Delimiter">(</span>element<span class="Delimiter">))</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!canonized_base<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">)</span>
raise_error << <span class="Constant">"illegal type '"</span> << debug_string<span class="Delimiter">(</span>canonized_base<span class="Delimiter">.</span>type<span class="Delimiter">)</span> << <span class="Constant">"' seems to be missing a type ingredient or three</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
replace_type_ingredient<span class="Delimiter">(</span>element<span class="Delimiter">.</span>type<span class="Delimiter">,</span> canonized_base<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
bool contains_type_ingredient<span class="Delimiter">(</span>const reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> contains_type_ingredient<span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
bool contains_type_ingredient<span class="Delimiter">(</span>const type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>type<span class="Delimiter">-></span>value >= START_TYPE_INGREDIENTS<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> contains_type_ingredient<span class="Delimiter">(</span>type<span class="Delimiter">-></span>left<span class="Delimiter">)</span> || contains_type_ingredient<span class="Delimiter">(</span>type<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
void replace_type_ingredient<span class="Delimiter">(</span>type_tree* element_type<span class="Delimiter">,</span> const type_tree* callsite_type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!callsite_type<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// error but it's already been raised above</span>
if <span class="Delimiter">(</span>!element_type<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>element_type<span class="Delimiter">-></span>value >= START_TYPE_INGREDIENTS<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!has_nth_type<span class="Delimiter">(</span>callsite_type<span class="Delimiter">,</span> element_type<span class="Delimiter">-></span>value-START_TYPE_INGREDIENTS<span class="Delimiter">))</span> <span class="Delimiter">{</span>
raise_error << <span class="Constant">"illegal type '"</span> << debug_string<span class="Delimiter">(</span>callsite_type<span class="Delimiter">)</span> << <span class="Constant">"' seems to be missing a type ingredient or three</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
const type_tree* replacement = nth_type<span class="Delimiter">(</span>callsite_type<span class="Delimiter">,</span> element_type<span class="Delimiter">-></span>value-START_TYPE_INGREDIENTS<span class="Delimiter">);</span>
element_type<span class="Delimiter">-></span>value = replacement<span class="Delimiter">-></span>value<span class="Delimiter">;</span>
element_type<span class="Delimiter">-></span>left = replacement<span class="Delimiter">-></span>left ? new type_tree<span class="Delimiter">(</span>*replacement<span class="Delimiter">-></span>left<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
element_type<span class="Delimiter">-></span>right = replacement<span class="Delimiter">-></span>right ? new type_tree<span class="Delimiter">(</span>*replacement<span class="Delimiter">-></span>right<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
replace_type_ingredient<span class="Delimiter">(</span>element_type<span class="Delimiter">-></span>right<span class="Delimiter">,</span> callsite_type<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
const type_tree* nth_type<span class="Delimiter">(</span>const type_tree* base<span class="Delimiter">,</span> long long int n<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>n >= <span class="Constant">0</span><span class="Delimiter">);</span>
if <span class="Delimiter">(</span>n == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> base<span class="Delimiter">;</span>
<span class="Identifier">return</span> nth_type<span class="Delimiter">(</span>base<span class="Delimiter">-></span>right<span class="Delimiter">,</span> n-<span class="Constant">1</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
bool has_nth_type<span class="Delimiter">(</span>const type_tree* base<span class="Delimiter">,</span> long long int n<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>n >= <span class="Constant">0</span><span class="Delimiter">);</span>
if <span class="Delimiter">(</span>base == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>n == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> has_nth_type<span class="Delimiter">(</span>base<span class="Delimiter">-></span>right<span class="Delimiter">,</span> n-<span class="Constant">1</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario get_on_shape_shifting_container_error)</span>
<span class="Special">% Hide_errors = true;</span>
container foo:_t [
x:_t
y:number
]
recipe main [
<span class="Constant">10</span>:foo:point<span class="Special"> <- </span>merge <span class="Constant">14</span><span class="Delimiter">,</span> <span class="Constant">15</span><span class="Delimiter">,</span> <span class="Constant">16</span>
<span class="Constant">1</span>:number<span class="Special"> <- </span>get <span class="Constant">10</span>:foo<span class="Delimiter">,</span> <span class="Constant">1</span>:offset
]
<span class="traceContains">+error: illegal type 'foo' seems to be missing a type ingredient or three</span>
<span class="Comment">//: get-address similarly</span>
<span class="Delimiter">:(scenario get_address_on_shape_shifting_container)</span>
container foo:_t [
x:_t
y:number
]
recipe main [
<span class="Constant">10</span>:foo:point<span class="Special"> <- </span>merge <span class="Constant">14</span><span class="Delimiter">,</span> <span class="Constant">15</span><span class="Delimiter">,</span> <span class="Constant">16</span>
<span class="Constant">1</span>:address:number<span class="Special"> <- </span>get-address <span class="Constant">10</span>:foo:point<span class="Delimiter">,</span> <span class="Constant">1</span>:offset
]
<span class="traceContains">+mem: storing 12 in location 1</span>
<span class="Delimiter">:(before "End GET_ADDRESS field Cases")</span>
const type_tree* type = get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> base_type<span class="Delimiter">).</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>type<span class="Delimiter">-></span>value >= START_TYPE_INGREDIENTS<span class="Delimiter">)</span> <span class="Delimiter">{</span>
long long int size = size_of_type_ingredient<span class="Delimiter">(</span>type<span class="Delimiter">,</span> base<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>!size<span class="Delimiter">)</span>
raise_error << <span class="Constant">"illegal type '"</span> << debug_string<span class="Delimiter">(</span>type<span class="Delimiter">)</span> << <span class="Constant">"' seems to be missing a type ingredient or three</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
result += size<span class="Delimiter">;</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario get_on_shape_shifting_container_inside_shape_shifting_container)</span>
container foo:_t [
x:_t
y:number
]
container bar [
x:foo:point
y:number
]
recipe main [
<span class="Constant">1</span>:bar<span class="Special"> <- </span>merge <span class="Constant">14</span><span class="Delimiter">,</span> <span class="Constant">15</span><span class="Delimiter">,</span> <span class="Constant">16</span><span class="Delimiter">,</span> <span class="Constant">17</span>
<span class="Constant">2</span>:number<span class="Special"> <- </span>get <span class="Constant">1</span>:bar<span class="Delimiter">,</span> <span class="Constant">1</span>:offset
]
<span class="traceContains">+mem: storing 17 in location 2</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|