about summary refs log tree commit diff stats
path: root/html/052tangle.cc.html
blob: b3ac5808b39c13ba5a2a4ea1a101166cfc56c87d (plain) (blame)
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
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
<!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 - 052tangle.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v2">
<meta name="syntax" content="cpp">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
a { color:#eeeeee; text-decoration: none; }
a:hover { text-decoration: underline; }
* { font-size: 12pt; font-size: 1em; }
.Constant { color: #00a0a0; }
.muRecipe { color: #ff8700; }
.Special { color: #c00000; }
.Conceal { color: #4e4e4e; }
.traceAbsent { color: #c00000; }
.Comment { color: #9090ff; }
.Comment a { color:#0000ee; text-decoration:underline; }
.Delimiter { color: #800080; }
.LineNr { color: #444444; }
.Identifier { color: #c0a020; }
.Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; }
.cSpecial { color: #008000; }
.traceContains { color: #008000; }
-->
</style>

<script type='text/javascript'>
<!--

/* function to open any folds containing a jumped-to line before jumping to it */
function JumpToLine()
{
  var lineNum;
  lineNum = window.location.hash;
  lineNum = lineNum.substr(1); /* strip off '#' */

  if (lineNum.indexOf('L') == -1) {
    lineNum = 'L'+lineNum;
  }
  lineElem = document.getElementById(lineNum);
  /* Always jump to new location even if the line was hidden inside a fold, or
   * we corrected the raw number to a line ID.
   */
  if (lineElem) {
    lineElem.scrollIntoView(true);
  }
  return true;
}
if ('onhashchange' in window) {
  window.onhashchange = JumpToLine;
}

-->
</script>
</head>
<body onload='JumpToLine();'>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="Comment">//: Allow code for recipes to be pulled in from multiple places and inserted</span>
<span id="L2" class="LineNr">  2 </span><span class="Comment">//: at special labels called 'waypoints' using two new top-level commands:</span>
<span id="L3" class="LineNr">  3 </span><span class="Comment">//:   before</span>
<span id="L4" class="LineNr">  4 </span><span class="Comment">//:   after</span>
<span id="L5" class="LineNr">  5 </span>
<span id="L6" class="LineNr">  6 </span><span class="Comment">//: Most labels are local: they must be unique to a recipe, and are invisible</span>
<span id="L7" class="LineNr">  7 </span><span class="Comment">//: outside the recipe. However, waypoints are global: a recipe can have</span>
<span id="L8" class="LineNr">  8 </span><span class="Comment">//: multiple of them, you can't use them as jump targets.</span>
<span id="L9" class="LineNr">  9 </span><span class="Delimiter">:(before &quot;End <a href='041jump_target.cc.html#L11'>is_jump_target</a> Special-cases&quot;)</span>
<span id="L10" class="LineNr"> 10 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='052tangle.cc.html#L13'>is_waypoint</a><span class="Delimiter">(</span>label<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L11" class="LineNr"> 11 </span><span class="Comment">//: Waypoints are always surrounded by '&lt;&gt;', e.g. &lt;handle-request&gt;.</span>
<span id="L12" class="LineNr"> 12 </span><span class="Delimiter">:(code)</span>
<span id="L13" class="LineNr"> 13 </span><span class="Normal">bool</span> <a href='052tangle.cc.html#L13'>is_waypoint</a><span class="Delimiter">(</span>string label<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L14" class="LineNr"> 14 </span>  <span class="Identifier">return</span> *label<span class="Delimiter">.</span>begin<span class="Delimiter">()</span> == <span class="Constant">'&lt;'</span> &amp;&amp; *label<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">'&gt;'</span><span class="Delimiter">;</span>
<span id="L15" class="LineNr"> 15 </span><span class="Delimiter">}</span>
<span id="L16" class="LineNr"> 16 </span>
<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(scenario tangle_before)</span>
<span id="L18" class="LineNr"> 18 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L19" class="LineNr"> 19 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L20" class="LineNr"> 20 </span>  &lt;label1&gt;
<span id="L21" class="LineNr"> 21 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L22" class="LineNr"> 22 </span>]
<span id="L23" class="LineNr"> 23 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L24" class="LineNr"> 24 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L25" class="LineNr"> 25 </span>]
<span id="L26" class="LineNr"> 26 </span><span class="traceContains">+mem: storing 0 in location 1</span>
<span id="L27" class="LineNr"> 27 </span><span class="traceContains">+mem: storing 0 in location 2</span>
<span id="L28" class="LineNr"> 28 </span><span class="traceContains">+mem: storing 0 in location 3</span>
<span id="L29" class="LineNr"> 29 </span><span class="Comment"># nothing else</span>
<span id="L30" class="LineNr"> 30 </span>$mem: <span class="Constant">3</span>
<span id="L31" class="LineNr"> 31 </span>
<span id="L32" class="LineNr"> 32 </span><span class="Comment">//: while loading recipes, load before/after fragments</span>
<span id="L33" class="LineNr"> 33 </span>
<span id="L34" class="LineNr"> 34 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
<span id="L35" class="LineNr"> 35 </span>map&lt;string <span class="Comment">/*</span><span class="Comment">label</span><span class="Comment">*/</span><span class="Delimiter">,</span> recipe&gt; Before_fragments<span class="Delimiter">,</span> After_fragments<span class="Delimiter">;</span>
<span id="L36" class="LineNr"> 36 </span>set&lt;string <span class="Comment">/*</span><span class="Comment">label</span><span class="Comment">*/</span>&gt; Fragments_used<span class="Delimiter">;</span>
<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">:(before &quot;End Reset&quot;)</span>
<span id="L38" class="LineNr"> 38 </span>Before_fragments<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L39" class="LineNr"> 39 </span>After_fragments<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L40" class="LineNr"> 40 </span>Fragments_used<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L41" class="LineNr"> 41 </span>
<span id="L42" class="LineNr"> 42 </span><span class="Delimiter">:(before &quot;End Command Handlers&quot;)</span>
<span id="L43" class="LineNr"> 43 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>command == <span class="Constant">&quot;before&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L44" class="LineNr"> 44 </span>  string label = <a href='011load.cc.html#L167'>next_word</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L45" class="LineNr"> 45 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>label<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L46" class="LineNr"> 46 </span>  <span class="Conceal">¦</span> assert<span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
<span id="L47" class="LineNr"> 47 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;incomplete 'before' block at <a href='003trace.cc.html#L197'>end</a> of file</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L48" class="LineNr"> 48 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L49" class="LineNr"> 49 </span>  <span class="Delimiter">}</span>
<span id="L50" class="LineNr"> 50 </span>  <a href='010vm.cc.html#L19'>recipe</a> tmp<span class="Delimiter">;</span>
<span id="L51" class="LineNr"> 51 </span>  <a href='011load.cc.html#L81'>slurp_body</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> tmp<span class="Delimiter">);</span>
<span id="L52" class="LineNr"> 52 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='052tangle.cc.html#L13'>is_waypoint</a><span class="Delimiter">(</span>label<span class="Delimiter">))</span>
<span id="L53" class="LineNr"> 53 </span>  <span class="Conceal">¦</span> Before_fragments[label]<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>Before_fragments[label]<span class="Delimiter">.</span>steps<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">(),</span> tmp<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> tmp<span class="Delimiter">.</span>steps<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">());</span>
<span id="L54" class="LineNr"> 54 </span>  <span class="Normal">else</span>
<span id="L55" class="LineNr"> 55 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;can't tangle before non-waypoint &quot;</span> &lt;&lt; label &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
<span id="L56" class="LineNr"> 56 </span>  <span class="Comment">// End before Command Handler</span>
<span id="L57" class="LineNr"> 57 </span><span class="Delimiter">}</span>
<span id="L58" class="LineNr"> 58 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>command == <span class="Constant">&quot;after&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L59" class="LineNr"> 59 </span>  string label = <a href='011load.cc.html#L167'>next_word</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L60" class="LineNr"> 60 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>label<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L61" class="LineNr"> 61 </span>  <span class="Conceal">¦</span> assert<span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;incomplete 'after' block at <a href='003trace.cc.html#L197'>end</a> of file</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L63" class="LineNr"> 63 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L64" class="LineNr"> 64 </span>  <span class="Delimiter">}</span>
<span id="L65" class="LineNr"> 65 </span>  <a href='010vm.cc.html#L19'>recipe</a> tmp<span class="Delimiter">;</span>
<span id="L66" class="LineNr"> 66 </span>  <a href='011load.cc.html#L81'>slurp_body</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> tmp<span class="Delimiter">);</span>
<span id="L67" class="LineNr"> 67 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='052tangle.cc.html#L13'>is_waypoint</a><span class="Delimiter">(</span>label<span class="Delimiter">))</span>
<span id="L68" class="LineNr"> 68 </span>  <span class="Conceal">¦</span> After_fragments[label]<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>After_fragments[label]<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> tmp<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> tmp<span class="Delimiter">.</span>steps<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">());</span>
<span id="L69" class="LineNr"> 69 </span>  <span class="Normal">else</span>
<span id="L70" class="LineNr"> 70 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;can't tangle after non-waypoint &quot;</span> &lt;&lt; label &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
<span id="L71" class="LineNr"> 71 </span>  <span class="Comment">// End after Command Handler</span>
<span id="L72" class="LineNr"> 72 </span><span class="Delimiter">}</span>
<span id="L73" class="LineNr"> 73 </span>
<span id="L74" class="LineNr"> 74 </span><span class="Comment">//: after all recipes are loaded, insert fragments at appropriate labels.</span>
<span id="L75" class="LineNr"> 75 </span>
<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">:(after &quot;Begin Instruction Inserting/Deleting Transforms&quot;)</span>
<span id="L77" class="LineNr"> 77 </span>Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>insert_fragments<span class="Delimiter">);</span>  <span class="Comment">// NOT idempotent</span>
<span id="L78" class="LineNr"> 78 </span>
<span id="L79" class="LineNr"> 79 </span><span class="Comment">//: We might need to perform multiple passes, in case inserted fragments</span>
<span id="L80" class="LineNr"> 80 </span><span class="Comment">//: include more labels that need further insertions. Track which labels we've</span>
<span id="L81" class="LineNr"> 81 </span><span class="Comment">//: already processed using an extra field.</span>
<span id="L82" class="LineNr"> 82 </span><span class="Delimiter">:(before &quot;End <a href='010vm.cc.html#L32'>instruction</a> Fields&quot;)</span>
<span id="L83" class="LineNr"> 83 </span><span class="Normal">mutable</span> <span class="Normal">bool</span> tangle_done<span class="Delimiter">;</span>
<span id="L84" class="LineNr"> 84 </span><span class="Delimiter">:(before &quot;End <a href='010vm.cc.html#L32'>instruction</a> Constructor&quot;)</span>
<span id="L85" class="LineNr"> 85 </span>tangle_done = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L86" class="LineNr"> 86 </span>
<span id="L87" class="LineNr"> 87 </span><span class="Delimiter">:(code)</span>
<span id="L88" class="LineNr"> 88 </span><span class="Normal">void</span> insert_fragments<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L89" class="LineNr"> 89 </span>  insert_fragments<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">));</span>
<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">}</span>
<span id="L91" class="LineNr"> 91 </span>
<span id="L92" class="LineNr"> 92 </span><span class="Normal">void</span> insert_fragments<span class="Delimiter">(</span>recipe&amp; r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L93" class="LineNr"> 93 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- insert fragments into <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; r<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L94" class="LineNr"> 94 </span>  <span class="Normal">bool</span> made_progress = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L95" class="LineNr"> 95 </span>  <span class="Normal">int</span> pass = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L96" class="LineNr"> 96 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>made_progress<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> made_progress = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <span class="Comment">// create a new vector because insertions invalidate iterators</span>
<span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> vector&lt;instruction&gt; result<span class="Delimiter">;</span>
<span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L102" class="LineNr">102 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>is_label || !is_waypoint<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label<span class="Delimiter">)</span> || inst<span class="Delimiter">.</span>tangle_done<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
<span id="L104" class="LineNr">104 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L105" class="LineNr">105 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L106" class="LineNr">106 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>tangle_done = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L107" class="LineNr">107 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> made_progress = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L108" class="LineNr">108 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> Fragments_used<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label<span class="Delimiter">);</span>
<span id="L109" class="LineNr">109 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> ostringstream prefix<span class="Delimiter">;</span>
<span id="L110" class="LineNr">110 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> prefix &lt;&lt; <span class="Constant">'+'</span> &lt;&lt; r<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">'_'</span> &lt;&lt; pass &lt;&lt; <span class="Constant">'_'</span> &lt;&lt; i<span class="Delimiter">;</span>
<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// ok to use contains_key even though Before_fragments uses [],</span>
<span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// because appending an empty recipe is a noop</span>
<span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Before_fragments<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>label<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L114" class="LineNr">114 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;insert fragments before label &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>label &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L115" class="LineNr">115 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='052tangle.cc.html#L128'>append_fragment</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> Before_fragments[inst<span class="Delimiter">.</span>label]<span class="Delimiter">.</span>steps<span class="Delimiter">,</span> prefix<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span id="L116" class="LineNr">116 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L117" class="LineNr">117 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
<span id="L118" class="LineNr">118 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>After_fragments<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>label<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;insert fragments after label &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>label &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L120" class="LineNr">120 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='052tangle.cc.html#L128'>append_fragment</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> After_fragments[inst<span class="Delimiter">.</span>label]<span class="Delimiter">.</span>steps<span class="Delimiter">,</span> prefix<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span id="L121" class="LineNr">121 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L123" class="LineNr">123 </span>  <span class="Conceal">¦</span> r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>swap<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> ++pass<span class="Delimiter">;</span>
<span id="L125" class="LineNr">125 </span>  <span class="Delimiter">}</span>
<span id="L126" class="LineNr">126 </span><span class="Delimiter">}</span>
<span id="L127" class="LineNr">127 </span>
<span id="L128" class="LineNr">128 </span><span class="Normal">void</span> <a href='052tangle.cc.html#L128'>append_fragment</a><span class="Delimiter">(</span>vector&lt;instruction&gt;&amp; base<span class="Delimiter">,</span> <span class="Normal">const</span> vector&lt;instruction&gt;&amp; patch<span class="Delimiter">,</span> <span class="Normal">const</span> string prefix<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L129" class="LineNr">129 </span>  <span class="Comment">// append 'patch' to 'base' while keeping 'base' oblivious to any new jump</span>
<span id="L130" class="LineNr">130 </span>  <span class="Comment">// targets in 'patch' oblivious to 'base' by prepending 'prefix' to them.</span>
<span id="L131" class="LineNr">131 </span>  <span class="Comment">// we might tangle the same fragment at multiple points in a single recipe,</span>
<span id="L132" class="LineNr">132 </span>  <span class="Comment">// and we need to avoid duplicate jump targets.</span>
<span id="L133" class="LineNr">133 </span>  <span class="Comment">// so we'll keep jump targets local to the specific before/after fragment</span>
<span id="L134" class="LineNr">134 </span>  <span class="Comment">// that introduces them.</span>
<span id="L135" class="LineNr">135 </span>  set&lt;string&gt; jump_targets<span class="Delimiter">;</span>
<span id="L136" class="LineNr">136 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>patch<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L137" class="LineNr">137 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = patch<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L138" class="LineNr">138 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label &amp;&amp; <a href='041jump_target.cc.html#L11'>is_jump_target</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label<span class="Delimiter">))</span>
<span id="L139" class="LineNr">139 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> jump_targets<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label<span class="Delimiter">);</span>
<span id="L140" class="LineNr">140 </span>  <span class="Delimiter">}</span>
<span id="L141" class="LineNr">141 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>patch<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L142" class="LineNr">142 </span>  <span class="Conceal">¦</span> <a href='010vm.cc.html#L32'>instruction</a> inst = patch<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L143" class="LineNr">143 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L144" class="LineNr">144 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>jump_targets<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>label<span class="Delimiter">))</span>
<span id="L145" class="LineNr">145 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>label = prefix+inst<span class="Delimiter">.</span>label<span class="Delimiter">;</span>
<span id="L146" class="LineNr">146 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> base<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
<span id="L147" class="LineNr">147 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L148" class="LineNr">148 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L149" class="LineNr">149 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span>  j &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L150" class="LineNr">150 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> reagent&amp; x = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span>
<span id="L151" class="LineNr">151 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='041jump_target.cc.html#L11'>is_jump_target</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &amp;&amp; contains_key<span class="Delimiter">(</span>jump_targets<span class="Delimiter">,</span> x<span class="Delimiter">.</span>name<span class="Delimiter">))</span>
<span id="L152" class="LineNr">152 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> x<span class="Delimiter">.</span>name = prefix+x<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
<span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L154" class="LineNr">154 </span>  <span class="Conceal">¦</span> base<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
<span id="L155" class="LineNr">155 </span>  <span class="Delimiter">}</span>
<span id="L156" class="LineNr">156 </span><span class="Delimiter">}</span>
<span id="L157" class="LineNr">157 </span>
<span id="L158" class="LineNr">158 </span><span class="Comment">//: complain about unapplied fragments</span>
<span id="L159" class="LineNr">159 </span><span class="Comment">//: This can't run during transform because later (shape-shifting recipes)</span>
<span id="L160" class="LineNr">160 </span><span class="Comment">//: we'll encounter situations where fragments might get used long after</span>
<span id="L161" class="LineNr">161 </span><span class="Comment">//: they're loaded, and we might run transform_all in between. To avoid</span>
<span id="L162" class="LineNr">162 </span><span class="Comment">//: spurious errors, run this check right at the end, after all code is</span>
<span id="L163" class="LineNr">163 </span><span class="Comment">//: loaded, right before we run main.</span>
<span id="L164" class="LineNr">164 </span><span class="Delimiter">:(before &quot;End Commandline Parsing&quot;)</span>
<span id="L165" class="LineNr">165 </span><a href='052tangle.cc.html#L167'>check_insert_fragments</a><span class="Delimiter">();</span>
<span id="L166" class="LineNr">166 </span><span class="Delimiter">:(code)</span>
<span id="L167" class="LineNr">167 </span><span class="Normal">void</span> <a href='052tangle.cc.html#L167'>check_insert_fragments</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L168" class="LineNr">168 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span>map&lt;string<span class="Delimiter">,</span> recipe&gt;::iterator p = Before_fragments<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>  p != Before_fragments<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>  ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L169" class="LineNr">169 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Fragments_used<span class="Delimiter">,</span> p<span class="Delimiter">-&gt;</span>first<span class="Delimiter">))</span>
<span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;could not locate insert before label &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L171" class="LineNr">171 </span>  <span class="Delimiter">}</span>
<span id="L172" class="LineNr">172 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span>map&lt;string<span class="Delimiter">,</span> recipe&gt;::iterator p = After_fragments<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>  p != After_fragments<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>  ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Fragments_used<span class="Delimiter">,</span> p<span class="Delimiter">-&gt;</span>first<span class="Delimiter">))</span>
<span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;could not locate insert after label &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L175" class="LineNr">175 </span>  <span class="Delimiter">}</span>
<span id="L176" class="LineNr">176 </span><span class="Delimiter">}</span>
<span id="L177" class="LineNr">177 </span>
<span id="L178" class="LineNr">178 </span><span class="Delimiter">:(scenario tangle_before_and_after)</span>
<span id="L179" class="LineNr">179 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L180" class="LineNr">180 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L181" class="LineNr">181 </span>  &lt;label1&gt;
<span id="L182" class="LineNr">182 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L183" class="LineNr">183 </span>]
<span id="L184" class="LineNr">184 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L185" class="LineNr">185 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L186" class="LineNr">186 </span>]
<span id="L187" class="LineNr">187 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L188" class="LineNr">188 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L189" class="LineNr">189 </span>]
<span id="L190" class="LineNr">190 </span><span class="traceContains">+mem: storing 0 in location 1</span>
<span id="L191" class="LineNr">191 </span><span class="traceContains">+mem: storing 0 in location 2</span>
<span id="L192" class="LineNr">192 </span><span class="Comment"># label1</span>
<span id="L193" class="LineNr">193 </span><span class="traceContains">+mem: storing 0 in location 3</span>
<span id="L194" class="LineNr">194 </span><span class="traceContains">+mem: storing 0 in location 4</span>
<span id="L195" class="LineNr">195 </span><span class="Comment"># nothing else</span>
<span id="L196" class="LineNr">196 </span>$mem: <span class="Constant">4</span>
<span id="L197" class="LineNr">197 </span>
<span id="L198" class="LineNr">198 </span><span class="Delimiter">:(scenario tangle_ignores_jump_target)</span>
<span id="L199" class="LineNr">199 </span><span class="Special">% Hide_errors = true;</span>
<span id="L200" class="LineNr">200 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L201" class="LineNr">201 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L202" class="LineNr">202 </span>  +label1
<span id="L203" class="LineNr">203 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L204" class="LineNr">204 </span>]
<span id="L205" class="LineNr">205 </span><span class="muRecipe">before</span> +label1 [
<span id="L206" class="LineNr">206 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L207" class="LineNr">207 </span>]
<span id="L208" class="LineNr">208 </span><span class="traceContains">+error: can't tangle before non-waypoint +label1</span>
<span id="L209" class="LineNr">209 </span>
<span id="L210" class="LineNr">210 </span><span class="Delimiter">:(scenario tangle_keeps_labels_separate)</span>
<span id="L211" class="LineNr">211 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L212" class="LineNr">212 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L213" class="LineNr">213 </span>  &lt;label1&gt;
<span id="L214" class="LineNr">214 </span>  &lt;label2&gt;
<span id="L215" class="LineNr">215 </span>  <span class="Constant">6</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L216" class="LineNr">216 </span>]
<span id="L217" class="LineNr">217 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L218" class="LineNr">218 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L219" class="LineNr">219 </span>]
<span id="L220" class="LineNr">220 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L221" class="LineNr">221 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L222" class="LineNr">222 </span>]
<span id="L223" class="LineNr">223 </span><span class="muRecipe">before</span> &lt;label2&gt; [
<span id="L224" class="LineNr">224 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L225" class="LineNr">225 </span>]
<span id="L226" class="LineNr">226 </span><span class="muRecipe">after</span> &lt;label2&gt; [
<span id="L227" class="LineNr">227 </span>  <span class="Constant">5</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L228" class="LineNr">228 </span>]
<span id="L229" class="LineNr">229 </span><span class="traceContains">+mem: storing 0 in location 1</span>
<span id="L230" class="LineNr">230 </span><span class="traceContains">+mem: storing 0 in location 2</span>
<span id="L231" class="LineNr">231 </span><span class="Comment"># label1</span>
<span id="L232" class="LineNr">232 </span><span class="traceContains">+mem: storing 0 in location 3</span>
<span id="L233" class="LineNr">233 </span><span class="Comment"># 'after' fragments for earlier label always go before 'before' fragments for later label</span>
<span id="L234" class="LineNr">234 </span><span class="traceContains">+mem: storing 0 in location 4</span>
<span id="L235" class="LineNr">235 </span><span class="Comment"># label2</span>
<span id="L236" class="LineNr">236 </span><span class="traceContains">+mem: storing 0 in location 5</span>
<span id="L237" class="LineNr">237 </span><span class="traceContains">+mem: storing 0 in location 6</span>
<span id="L238" class="LineNr">238 </span><span class="Comment"># nothing else</span>
<span id="L239" class="LineNr">239 </span>$mem: <span class="Constant">6</span>
<span id="L240" class="LineNr">240 </span>
<span id="L241" class="LineNr">241 </span><span class="Delimiter">:(scenario tangle_stacks_multiple_fragments)</span>
<span id="L242" class="LineNr">242 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L243" class="LineNr">243 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L244" class="LineNr">244 </span>  &lt;label1&gt;
<span id="L245" class="LineNr">245 </span>  <span class="Constant">6</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L246" class="LineNr">246 </span>]
<span id="L247" class="LineNr">247 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L248" class="LineNr">248 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L249" class="LineNr">249 </span>]
<span id="L250" class="LineNr">250 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L251" class="LineNr">251 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L252" class="LineNr">252 </span>]
<span id="L253" class="LineNr">253 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L254" class="LineNr">254 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L255" class="LineNr">255 </span>]
<span id="L256" class="LineNr">256 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L257" class="LineNr">257 </span>  <span class="Constant">5</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L258" class="LineNr">258 </span>]
<span id="L259" class="LineNr">259 </span><span class="traceContains">+mem: storing 0 in location 1</span>
<span id="L260" class="LineNr">260 </span><span class="Comment"># 'before' fragments stack in order</span>
<span id="L261" class="LineNr">261 </span><span class="traceContains">+mem: storing 0 in location 2</span>
<span id="L262" class="LineNr">262 </span><span class="traceContains">+mem: storing 0 in location 4</span>
<span id="L263" class="LineNr">263 </span><span class="Comment"># label1</span>
<span id="L264" class="LineNr">264 </span><span class="Comment"># 'after' fragments stack in reverse order</span>
<span id="L265" class="LineNr">265 </span><span class="traceContains">+mem: storing 0 in location 5</span>
<span id="L266" class="LineNr">266 </span><span class="traceContains">+mem: storing 0 in location 3</span>
<span id="L267" class="LineNr">267 </span><span class="traceContains">+mem: storing 0 in location 6</span>
<span id="L268" class="LineNr">268 </span><span class="Comment"># nothing else</span>
<span id="L269" class="LineNr">269 </span>$mem: <span class="Constant">6</span>
<span id="L270" class="LineNr">270 </span>
<span id="L271" class="LineNr">271 </span><span class="Delimiter">:(scenario tangle_supports_fragments_with_multiple_instructions)</span>
<span id="L272" class="LineNr">272 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L273" class="LineNr">273 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L274" class="LineNr">274 </span>  &lt;label1&gt;
<span id="L275" class="LineNr">275 </span>  <span class="Constant">6</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L276" class="LineNr">276 </span>]
<span id="L277" class="LineNr">277 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L278" class="LineNr">278 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L279" class="LineNr">279 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L280" class="LineNr">280 </span>]
<span id="L281" class="LineNr">281 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L282" class="LineNr">282 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L283" class="LineNr">283 </span>  <span class="Constant">5</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L284" class="LineNr">284 </span>]
<span id="L285" class="LineNr">285 </span><span class="traceContains">+mem: storing 0 in location 1</span>
<span id="L286" class="LineNr">286 </span><span class="traceContains">+mem: storing 0 in location 2</span>
<span id="L287" class="LineNr">287 </span><span class="traceContains">+mem: storing 0 in location 3</span>
<span id="L288" class="LineNr">288 </span><span class="Comment"># label1</span>
<span id="L289" class="LineNr">289 </span><span class="traceContains">+mem: storing 0 in location 4</span>
<span id="L290" class="LineNr">290 </span><span class="traceContains">+mem: storing 0 in location 5</span>
<span id="L291" class="LineNr">291 </span><span class="traceContains">+mem: storing 0 in location 6</span>
<span id="L292" class="LineNr">292 </span><span class="Comment"># nothing else</span>
<span id="L293" class="LineNr">293 </span>$mem: <span class="Constant">6</span>
<span id="L294" class="LineNr">294 </span>
<span id="L295" class="LineNr">295 </span><span class="Delimiter">:(scenario tangle_tangles_into_all_labels_with_same_name)</span>
<span id="L296" class="LineNr">296 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L297" class="LineNr">297 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L298" class="LineNr">298 </span>  &lt;label1&gt;
<span id="L299" class="LineNr">299 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L300" class="LineNr">300 </span>  recipe2
<span id="L301" class="LineNr">301 </span>]
<span id="L302" class="LineNr">302 </span><span class="muRecipe">def</span> recipe2 [
<span id="L303" class="LineNr">303 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">11</span>
<span id="L304" class="LineNr">304 </span>  &lt;label1&gt;
<span id="L305" class="LineNr">305 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">11</span>
<span id="L306" class="LineNr">306 </span>]
<span id="L307" class="LineNr">307 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L308" class="LineNr">308 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L309" class="LineNr">309 </span>]
<span id="L310" class="LineNr">310 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L311" class="LineNr">311 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L312" class="LineNr">312 </span>]
<span id="L313" class="LineNr">313 </span><span class="traceContains">+mem: storing 10 in location 1</span>
<span id="L314" class="LineNr">314 </span><span class="traceContains">+mem: storing 12 in location 2</span>
<span id="L315" class="LineNr">315 </span><span class="Comment"># label1</span>
<span id="L316" class="LineNr">316 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L317" class="LineNr">317 </span><span class="traceContains">+mem: storing 10 in location 4</span>
<span id="L318" class="LineNr">318 </span><span class="Comment"># recipe2</span>
<span id="L319" class="LineNr">319 </span><span class="traceContains">+mem: storing 11 in location 1</span>
<span id="L320" class="LineNr">320 </span><span class="traceContains">+mem: storing 12 in location 2</span>
<span id="L321" class="LineNr">321 </span><span class="Comment"># label1</span>
<span id="L322" class="LineNr">322 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L323" class="LineNr">323 </span><span class="traceContains">+mem: storing 11 in location 4</span>
<span id="L324" class="LineNr">324 </span><span class="Comment"># nothing else</span>
<span id="L325" class="LineNr">325 </span>$mem: <span class="Constant">8</span>
<span id="L326" class="LineNr">326 </span>
<span id="L327" class="LineNr">327 </span><span class="Delimiter">:(scenario tangle_tangles_into_all_labels_with_same_name_2)</span>
<span id="L328" class="LineNr">328 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L329" class="LineNr">329 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L330" class="LineNr">330 </span>  &lt;label1&gt;
<span id="L331" class="LineNr">331 </span>  &lt;label1&gt;
<span id="L332" class="LineNr">332 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L333" class="LineNr">333 </span>]
<span id="L334" class="LineNr">334 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L335" class="LineNr">335 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L336" class="LineNr">336 </span>]
<span id="L337" class="LineNr">337 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L338" class="LineNr">338 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L339" class="LineNr">339 </span>]
<span id="L340" class="LineNr">340 </span><span class="traceContains">+mem: storing 10 in location 1</span>
<span id="L341" class="LineNr">341 </span><span class="traceContains">+mem: storing 12 in location 2</span>
<span id="L342" class="LineNr">342 </span><span class="Comment"># label1</span>
<span id="L343" class="LineNr">343 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L344" class="LineNr">344 </span><span class="traceContains">+mem: storing 12 in location 2</span>
<span id="L345" class="LineNr">345 </span><span class="Comment"># label1</span>
<span id="L346" class="LineNr">346 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L347" class="LineNr">347 </span><span class="traceContains">+mem: storing 10 in location 4</span>
<span id="L348" class="LineNr">348 </span><span class="Comment"># nothing else</span>
<span id="L349" class="LineNr">349 </span>$mem: <span class="Constant">6</span>
<span id="L350" class="LineNr">350 </span>
<span id="L351" class="LineNr">351 </span><span class="Delimiter">:(scenario tangle_tangles_into_all_labels_with_same_name_3)</span>
<span id="L352" class="LineNr">352 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L353" class="LineNr">353 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L354" class="LineNr">354 </span>  &lt;label1&gt;
<span id="L355" class="LineNr">355 </span>  &lt;foo&gt;
<span id="L356" class="LineNr">356 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L357" class="LineNr">357 </span>]
<span id="L358" class="LineNr">358 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L359" class="LineNr">359 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L360" class="LineNr">360 </span>]
<span id="L361" class="LineNr">361 </span><span class="muRecipe">after</span> &lt;label1&gt; [
<span id="L362" class="LineNr">362 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L363" class="LineNr">363 </span>]
<span id="L364" class="LineNr">364 </span><span class="muRecipe">after</span> &lt;foo&gt; [
<span id="L365" class="LineNr">365 </span>  &lt;label1&gt;
<span id="L366" class="LineNr">366 </span>]
<span id="L367" class="LineNr">367 </span><span class="traceContains">+mem: storing 10 in location 1</span>
<span id="L368" class="LineNr">368 </span><span class="traceContains">+mem: storing 12 in location 2</span>
<span id="L369" class="LineNr">369 </span><span class="Comment"># label1</span>
<span id="L370" class="LineNr">370 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L371" class="LineNr">371 </span><span class="traceContains">+mem: storing 12 in location 2</span>
<span id="L372" class="LineNr">372 </span><span class="Comment"># foo/label1</span>
<span id="L373" class="LineNr">373 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L374" class="LineNr">374 </span><span class="traceContains">+mem: storing 10 in location 4</span>
<span id="L375" class="LineNr">375 </span><span class="Comment"># nothing else</span>
<span id="L376" class="LineNr">376 </span>$mem: <span class="Constant">6</span>
<span id="L377" class="LineNr">377 </span>
<span id="L378" class="LineNr">378 </span><span class="Delimiter">:(scenario tangle_handles_jump_target_inside_fragment)</span>
<span id="L379" class="LineNr">379 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L380" class="LineNr">380 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L381" class="LineNr">381 </span>  &lt;label1&gt;
<span id="L382" class="LineNr">382 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L383" class="LineNr">383 </span>]
<span id="L384" class="LineNr">384 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L385" class="LineNr">385 </span>  jump <span class="Constant">+label2:label</span>
<span id="L386" class="LineNr">386 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L387" class="LineNr">387 </span>  +label2
<span id="L388" class="LineNr">388 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L389" class="LineNr">389 </span>]
<span id="L390" class="LineNr">390 </span><span class="traceContains">+mem: storing 10 in location 1</span>
<span id="L391" class="LineNr">391 </span><span class="Comment"># label1</span>
<span id="L392" class="LineNr">392 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L393" class="LineNr">393 </span><span class="traceContains">+mem: storing 10 in location 4</span>
<span id="L394" class="LineNr">394 </span><span class="Comment"># ignored by jump</span>
<span id="L395" class="LineNr">395 </span><span class="traceAbsent">-mem: storing 12 in label 2</span>
<span id="L396" class="LineNr">396 </span><span class="Comment"># nothing else</span>
<span id="L397" class="LineNr">397 </span>$mem: <span class="Constant">3</span>
<span id="L398" class="LineNr">398 </span>
<span id="L399" class="LineNr">399 </span><span class="Delimiter">:(scenario tangle_renames_jump_target)</span>
<span id="L400" class="LineNr">400 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L401" class="LineNr">401 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L402" class="LineNr">402 </span>  &lt;label1&gt;
<span id="L403" class="LineNr">403 </span>  +label2
<span id="L404" class="LineNr">404 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L405" class="LineNr">405 </span>]
<span id="L406" class="LineNr">406 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L407" class="LineNr">407 </span>  jump <span class="Constant">+label2:label</span>
<span id="L408" class="LineNr">408 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L409" class="LineNr">409 </span>  +label2  <span class="Comment"># renamed</span>
<span id="L410" class="LineNr">410 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L411" class="LineNr">411 </span>]
<span id="L412" class="LineNr">412 </span><span class="traceContains">+mem: storing 10 in location 1</span>
<span id="L413" class="LineNr">413 </span><span class="Comment"># label1</span>
<span id="L414" class="LineNr">414 </span><span class="traceContains">+mem: storing 12 in location 3</span>
<span id="L415" class="LineNr">415 </span><span class="traceContains">+mem: storing 10 in location 4</span>
<span id="L416" class="LineNr">416 </span><span class="Comment"># ignored by jump</span>
<span id="L417" class="LineNr">417 </span><span class="traceAbsent">-mem: storing 12 in label 2</span>
<span id="L418" class="LineNr">418 </span><span class="Comment"># nothing else</span>
<span id="L419" class="LineNr">419 </span>$mem: <span class="Constant">3</span>
<span id="L420" class="LineNr">420 </span>
<span id="L421" class="LineNr">421 </span><span class="Delimiter">:(scenario tangle_jump_to_base_recipe)</span>
<span id="L422" class="LineNr">422 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L423" class="LineNr">423 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L424" class="LineNr">424 </span>  &lt;label1&gt;
<span id="L425" class="LineNr">425 </span>  +label2
<span id="L426" class="LineNr">426 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>
<span id="L427" class="LineNr">427 </span>]
<span id="L428" class="LineNr">428 </span><span class="muRecipe">before</span> &lt;label1&gt; [
<span id="L429" class="LineNr">429 </span>  jump <span class="Constant">+label2:label</span>
<span id="L430" class="LineNr">430 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L431" class="LineNr">431 </span>  <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>
<span id="L432" class="LineNr">432 </span>]
<span id="L433" class="LineNr">433 </span><span class="traceContains">+mem: storing 10 in location 1</span>
<span id="L434" class="LineNr">434 </span><span class="Comment"># label1</span>
<span id="L435" class="LineNr">435 </span><span class="traceContains">+mem: storing 10 in location 4</span>
<span id="L436" class="LineNr">436 </span><span class="Comment"># ignored by jump</span>
<span id="L437" class="LineNr">437 </span><span class="traceAbsent">-mem: storing 12 in label 2</span>
<span id="L438" class="LineNr">438 </span><span class="traceAbsent">-mem: storing 12 in location 3</span>
<span id="L439" class="LineNr">439 </span><span class="Comment"># nothing else</span>
<span id="L440" class="LineNr">440 </span>$mem: <span class="Constant">2</span>
<span id="L441" class="LineNr">441 </span>
<span id="L442" class="LineNr">442 </span><span class="Comment">//: ensure that there are no new fragments created for a label after it's already been inserted to</span>
<span id="L443" class="LineNr">443 </span>
<span id="L444" class="LineNr">444 </span><span class="Delimiter">:(code)</span>
<span id="L445" class="LineNr">445 </span><span class="Normal">void</span> <a href='052tangle.cc.html#L445'>test_new_fragment_after_tangle</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L446" class="LineNr">446 </span>  <span class="Comment">// define a recipe</span>
<span id="L447" class="LineNr">447 </span>  load<span class="Delimiter">(</span><span class="Constant">&quot;def foo [</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L448" class="LineNr">448 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;  local-scope</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L449" class="LineNr">449 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;  &lt;label&gt;</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L450" class="LineNr">450 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;]</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L451" class="LineNr">451 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;after &lt;label&gt; [</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L452" class="LineNr">452 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;  1:num/raw &lt;- copy 34</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L453" class="LineNr">453 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;]</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">);</span>
<span id="L454" class="LineNr">454 </span>  <a href='012transform.cc.html#L46'>transform_all</a><span class="Delimiter">();</span>
<span id="L455" class="LineNr">455 </span>  <a href='003trace.cc.html#L233'>CHECK_TRACE_DOESNT_CONTAIN_ERRORS</a><span class="Delimiter">();</span>
<span id="L456" class="LineNr">456 </span>  Hide_errors = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L457" class="LineNr">457 </span>  <span class="Comment">// try to tangle into recipe foo after transform</span>
<span id="L458" class="LineNr">458 </span>  load<span class="Delimiter">(</span><span class="Constant">&quot;before &lt;label&gt; [</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L459" class="LineNr">459 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;  2:num/raw &lt;- copy 35</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span>
<span id="L460" class="LineNr">460 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span><span class="Constant">&quot;]</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">);</span>
<span id="L461" class="LineNr">461 </span>  <a href='003trace.cc.html#L232'>CHECK_TRACE_CONTAINS_ERRORS</a><span class="Delimiter">();</span>
<span id="L462" class="LineNr">462 </span><span class="Delimiter">}</span>
<span id="L463" class="LineNr">463 </span>
<span id="L464" class="LineNr">464 </span><span class="Delimiter">:(before &quot;End before Command Handler&quot;)</span>
<span id="L465" class="LineNr">465 </span><span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Fragments_used<span class="Delimiter">,</span> label<span class="Delimiter">))</span>
<span id="L466" class="LineNr">466 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;we've already tangled some code at label &quot;</span> &lt;&lt; label &lt;&lt; <span class="Constant">&quot; in a previous call to transform_all(). Those locations won't be updated.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L467" class="LineNr">467 </span><span class="Delimiter">:(before &quot;End after Command Handler&quot;)</span>
<span id="L468" class="LineNr">468 </span><span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Fragments_used<span class="Delimiter">,</span> label<span class="Delimiter">))</span>
<span id="L469" class="LineNr">469 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;we've already tangled some code at label &quot;</span> &lt;&lt; label &lt;&lt; <span class="Constant">&quot; in a previous call to transform_all(). Those locations won't be updated.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->