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
|
<!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>~/Desktop/s/mu/003trace.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: #d0d0d0; background-color: #000000; }
body { font-family: monospace; color: #d0d0d0; background-color: #000000; }
* { font-size: 1em; }
.cSpecial { color: #008000; }
.Constant { color: #008080; }
.Identifier { color: #008080; }
.Comment { color: #8080ff; }
.Delimiter { color: #c000c0; }
.SalientComment { color: #00ffff; }
.CommentedCode { color: #6c6c6c; }
.PreProc { color: #c000c0; }
-->
</style>
<script type='text/javascript'>
<!--
-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="Comment">//: The goal of this skeleton is to make programs more easy to understand and</span>
<span class="Comment">//: more malleable, easy to rewrite in radical ways without accidentally</span>
<span class="Comment">//: breaking some corner case. Tests further both goals. They help</span>
<span class="Comment">//: understandability by letting one make small changes and get feedback. What</span>
<span class="Comment">//: if I wrote this line like so? What if I removed this function call, is it</span>
<span class="Comment">//: really necessary? Just try it, see if the tests pass. Want to explore</span>
<span class="Comment">//: rewriting this bit in this way? Tests put many refactorings on a firmer</span>
<span class="Comment">//: footing.</span>
<span class="Comment">//:</span>
<span class="Comment">//: But the usual way we write tests seems incomplete. Refactorings tend to</span>
<span class="Comment">//: work in the small, but don't help with changes to function boundaries. If</span>
<span class="Comment">//: you want to extract a new function you have to manually test-drive it to</span>
<span class="Comment">//: create tests for it. If you want to inline a function its tests are no</span>
<span class="Comment">//: longer valid. In both cases you end up having to reorganize code as well as</span>
<span class="Comment">//: tests, an error-prone activity.</span>
<span class="Comment">//:</span>
<span class="Comment">//: This file tries to fix this problem by supporting domain-driven testing</span>
<span class="Comment">//: We try to focus on the domain of inputs the program should work on. All</span>
<span class="Comment">//: tests invoke the program in a single way: by calling run() with different</span>
<span class="Comment">//: inputs. The program operates on the input and logs _facts_ it deduces to a</span>
<span class="Comment">//: trace:</span>
<span class="Comment">//: trace("label") << "fact 1: " << val;</span>
<span class="Comment">//:</span>
<span class="Comment">//: The tests check for facts:</span>
<span class="Comment">//: :(scenario foo)</span>
<span class="Comment">//: 34 # call run() with this input</span>
<span class="Comment">//: +label: fact 1: 34 # trace should have logged this at the end</span>
<span class="Comment">//: -label: fact 1: 35 # trace should never contain such a line</span>
<span class="Comment">//:</span>
<span class="Comment">//: Since we never call anything but the run() function directly, we never have</span>
<span class="Comment">//: to rewrite the tests when we reorganize the internals of the program. We</span>
<span class="Comment">//: just have to make sure our rewrite deduces the same facts about the domain,</span>
<span class="Comment">//: and that's something we're going to have to do anyway.</span>
<span class="Comment">//:</span>
<span class="Comment">//: To avoid the combinatorial explosion of integration tests, we organize the</span>
<span class="Comment">//: program into different layers, and each fact is logged to the trace with a</span>
<span class="Comment">//: specific label. Individual tests can focus on specific labels. In essence,</span>
<span class="Comment">//: validating the facts logged with a specific label is identical to calling</span>
<span class="Comment">//: some internal subsystem.</span>
<span class="Comment">//:</span>
<span class="Comment">//: Traces interact salubriously with layers. Thanks to our ordering</span>
<span class="Comment">//: directives, each layer can contain its own tests. They may rely on other</span>
<span class="Comment">//: layers, but when a test fails its usually due to breakage in the same</span>
<span class="Comment">//: layer. When multiple tests fail, it's usually useful to debug the very</span>
<span class="Comment">//: first test to fail. This is in contrast with the traditional approach,</span>
<span class="Comment">//: where changes can cause breakages in faraway subsystems, and picking the</span>
<span class="Comment">//: right test to debug can be an important skill to pick up.</span>
<span class="Comment">//:</span>
<span class="Comment">//: A final wrinkle is for recursive functions; it's often useful to segment</span>
<span class="Comment">//: calls of different depth in the trace:</span>
<span class="Comment">//: +eval/1: => 34 # the topmost call to eval should have logged this line</span>
<span class="Comment">//: (look at new_trace_frame below)</span>
<span class="Comment">//:</span>
<span class="Comment">//: To build robust tests, trace facts about your domain rather than details of</span>
<span class="Comment">//: how you computed them.</span>
<span class="Comment">//:</span>
<span class="Comment">//: More details: <a href="http://akkartik.name/blog/tracing-tests">http://akkartik.name/blog/tracing-tests</a></span>
<span class="Comment">//:</span>
<span class="Comment">//: ---</span>
<span class="Comment">//:</span>
<span class="Comment">//: Between layers and domain-driven testing, programming starts to look like a</span>
<span class="Comment">//: fundamentally different activity. Instead of a) superficial, b) local rules</span>
<span class="Comment">//: on c) code [like <a href="http://blog.bbv.ch/2013/06/05/clean-code-cheat-sheet],">http://blog.bbv.ch/2013/06/05/clean-code-cheat-sheet],</a></span>
<span class="Comment">//: we allow programmers to engage with the a) deep, b) global structure of the</span>
<span class="Comment">//: c) domain. If you can systematically track discontinuities in the domain</span>
<span class="Comment">//: you don't care if the code used gotos as long as it passed the tests. If</span>
<span class="Comment">//: tests become more robust to run it becomes easier to try out radically</span>
<span class="Comment">//: different implementations for the same program. If code is super-easy to</span>
<span class="Comment">//: rewrite, it becomes less important what indentation style it uses, or that</span>
<span class="Comment">//: the objects are appropriately encapsulated, or that the functions are</span>
<span class="Comment">//: referentially transparent.</span>
<span class="Comment">//:</span>
<span class="Comment">//: Instead of plumbing, programming becomes building and gradually refining a</span>
<span class="Comment">//: map of the environment the program must operate under. Whether a program is</span>
<span class="Comment">//: 'correct' at a given point in time is a red herring; what matters is</span>
<span class="Comment">//: avoiding regression by monotonically nailing down the more 'eventful' parts</span>
<span class="Comment">//: of the terrain. It helps readers new and old and rewards curiosity to</span>
<span class="Comment">//: organize large programs in self-similar hiearchies of example scenarios</span>
<span class="Comment">//: colocated with the code that makes them work.</span>
<span class="Comment">//:</span>
<span class="Comment">//: "Programming properly should be regarded as an activity by which</span>
<span class="Comment">//: programmers form a mental model, rather than as production of a program."</span>
<span class="Comment">//: -- Peter Naur (<a href="http://alistair.cockburn.us/ASD+book+extract%3A+%22Naur,+Ehn,+Musashi%22)">http://alistair.cockburn.us/ASD+book+extract%3A+%22Naur,+Ehn,+Musashi%22)</a></span>
<span class="Delimiter">:(before "int main")</span>
<span class="Comment">// End Tracing // hack to ensure most code in this layer comes before anything else</span>
<span class="Delimiter">:(before "End Tracing")</span>
bool Hide_warnings = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Setup")</span>
<span class="CommentedCode">//? cerr << "AAA setup\n"; //? 2</span>
Hide_warnings = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Tracing")</span>
struct trace_stream <span class="Delimiter">{</span>
vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > > past_lines<span class="Delimiter">;</span> <span class="Comment">// [(layer label, frame, line)]</span>
map<string<span class="Delimiter">,</span> int> frame<span class="Delimiter">;</span>
<span class="Comment">// accumulator for current line</span>
ostringstream* curr_stream<span class="Delimiter">;</span>
string curr_layer<span class="Delimiter">;</span>
string dump_layer<span class="Delimiter">;</span>
trace_stream<span class="Delimiter">()</span> :curr_stream<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>
~trace_stream<span class="Delimiter">()</span> <span class="Delimiter">{</span> if <span class="Delimiter">(</span>curr_stream<span class="Delimiter">)</span> delete curr_stream<span class="Delimiter">;</span> <span class="Delimiter">}</span>
ostringstream& stream<span class="Delimiter">(</span>string layer<span class="Delimiter">)</span> <span class="Delimiter">{</span>
newline<span class="Delimiter">();</span>
curr_stream = new ostringstream<span class="Delimiter">;</span>
curr_layer = layer<span class="Delimiter">;</span>
<span class="Identifier">return</span> *curr_stream<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// be sure to call this before messing with curr_stream or curr_layer or frame</span>
void newline<span class="Delimiter">()</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!curr_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
string curr_contents = curr_stream<span class="Delimiter">-></span>str<span class="Delimiter">();</span>
curr_contents<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>curr_contents<span class="Delimiter">.</span>find_last_not_of<span class="Delimiter">(</span><span class="Constant">"</span><span class="cSpecial">\r\n</span><span class="Constant">"</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">);</span>
past_lines<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> ><span class="Delimiter">(</span>curr_layer<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string><span class="Delimiter">(</span>frame[curr_layer]<span class="Delimiter">,</span> curr_contents<span class="Delimiter">)));</span>
if <span class="Delimiter">(</span>curr_layer == dump_layer || curr_layer == <span class="Constant">"dump"</span> || dump_layer == <span class="Constant">"all"</span> ||
<span class="Delimiter">(</span>!Hide_warnings && curr_layer == <span class="Constant">"warn"</span><span class="Delimiter">))</span>
<span class="CommentedCode">//? if (dump_layer == "all" && (Current_routine->id == 3 || curr_layer == "schedule")) //? 1</span>
cerr << curr_layer << <span class="Constant">'/'</span> << frame[curr_layer] << <span class="Constant">": "</span> << curr_contents << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
delete curr_stream<span class="Delimiter">;</span>
curr_stream = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// Useful for debugging.</span>
string readable_contents<span class="Delimiter">(</span>string layer<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// missing layer = everything, frame, hierarchical layers</span>
newline<span class="Delimiter">();</span>
ostringstream output<span class="Delimiter">;</span>
string real_layer<span class="Delimiter">,</span> frame<span class="Delimiter">;</span>
parse_layer_and_frame<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> &real_layer<span class="Delimiter">,</span> &frame<span class="Delimiter">);</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span>
if <span class="Delimiter">(</span>layer<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || prefix_match<span class="Delimiter">(</span>real_layer<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span>
output << p<span class="Delimiter">-></span>first << <span class="Constant">"/"</span> << p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> output<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Comment">// Useful for a newcomer to visualize the program at work.</span>
void dump_browseable_contents<span class="Delimiter">(</span>string layer<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ofstream dump<span class="Delimiter">(</span><span class="Constant">"dump"</span><span class="Delimiter">);</span>
dump << <span class="Constant">"<div class='frame' frame_index='1'>start</div></span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>p<span class="Delimiter">-></span>first != layer<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
dump << <span class="Constant">"<div class='frame"</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>first > <span class="Constant">1</span><span class="Delimiter">)</span> dump << <span class="Constant">" hidden"</span><span class="Delimiter">;</span>
dump << <span class="Constant">"' frame_index='"</span> << p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>first << <span class="Constant">"'>"</span><span class="Delimiter">;</span>
dump << p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second<span class="Delimiter">;</span>
dump << <span class="Constant">"</div></span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
dump<span class="Delimiter">.</span>close<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">};</span>
^L
trace_stream* Trace_stream = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Comment">// Top-level helper. IMPORTANT: can't nest.</span>
<span class="PreProc">#define trace(layer) !Trace_stream ? cerr </span><span class="Comment">/*</span><span class="Comment">print nothing</span><span class="Comment">*/</span><span class="PreProc"> : Trace_stream</span><span class="Delimiter">-></span><span class="PreProc">stream(layer)</span>
<span class="Comment">// Warnings should go straight to cerr by default since calls to trace() have</span>
<span class="Comment">// some unfriendly constraints (they delay printing, they can't nest)</span>
<span class="PreProc">#define raise ((!Trace_stream || !Hide_warnings) ? cerr </span><span class="Comment">/*</span><span class="Comment">do print</span><span class="Comment">*/</span><span class="PreProc"> : Trace_stream</span><span class="Delimiter">-></span><span class="PreProc">stream(</span><span class="Constant">"warn"</span><span class="PreProc">))</span>
<span class="Comment">// A separate helper for debugging. We should only trace domain-specific</span>
<span class="Comment">// facts. For everything else use log.</span>
<span class="PreProc">#define xlog </span>if<span class="PreProc"> (</span><span class="Constant">false</span><span class="PreProc">) log</span>
<span class="Comment">// To turn on logging replace 'xlog' with 'log'.</span>
<span class="PreProc">#define log cerr</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Comment">// raise << die exits after printing -- unless Hide_warnings is set.</span>
struct die <span class="Delimiter">{};</span>
<span class="Delimiter">:(before "End Tracing")</span>
ostream& operator<<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> unused die<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>Hide_warnings<span class="Delimiter">)</span> <span class="Identifier">return</span> os<span class="Delimiter">;</span>
os << <span class="Constant">"dying"</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">)</span> Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="PreProc">#define CLEAR_TRACE </span>delete<span class="PreProc"> Trace_stream</span><span class="Delimiter">,</span><span class="PreProc"> Trace_stream = </span>new<span class="PreProc"> trace_stream</span><span class="Delimiter">;</span>
<span class="PreProc">#define DUMP(layer) </span>if<span class="PreProc"> (Trace_stream) cerr << Trace_stream</span><span class="Delimiter">-></span><span class="PreProc">readable_contents(layer)</span><span class="Delimiter">;</span>
<span class="Comment">// Trace_stream is a resource, lease_tracer uses RAII to manage it.</span>
string Trace_file<span class="Delimiter">;</span>
static string Trace_dir = <span class="Constant">".traces/"</span><span class="Delimiter">;</span>
struct lease_tracer <span class="Delimiter">{</span>
lease_tracer<span class="Delimiter">()</span> <span class="Delimiter">{</span> Trace_stream = new trace_stream<span class="Delimiter">;</span> <span class="Delimiter">}</span>
~lease_tracer<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//? cerr << "write to file? " << Trace_file << "$\n"; //? 2</span>
if <span class="Delimiter">(</span>!Trace_file<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//? cerr << "writing\n"; //? 2</span>
ofstream fout<span class="Delimiter">((</span>Trace_dir+Trace_file<span class="Delimiter">).</span>c_str<span class="Delimiter">());</span>
fout << Trace_stream<span class="Delimiter">-></span>readable_contents<span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span>
fout<span class="Delimiter">.</span>close<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
delete Trace_stream<span class="Delimiter">,</span> Trace_stream = <span class="Constant">NULL</span><span class="Delimiter">,</span> Trace_file = <span class="Constant">""</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">};</span>
<span class="Comment">// To transparently save traces, start tests with the TEST() macro.</span>
<span class="PreProc">#define TEST(name) </span>void<span class="PreProc"> test_</span><span class="SalientComment">##name() { Trace_file = #name;</span>
<span class="PreProc">#define START_TRACING_UNTIL_END_OF_SCOPE lease_tracer leased_tracer</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Test Setup")</span>
START_TRACING_UNTIL_END_OF_SCOPE
<span class="CommentedCode">//? Trace_stream->dump_layer = "all"; //? 1</span>
<span class="Delimiter">:(before "End Tracing")</span>
void trace_all<span class="Delimiter">(</span>const string& label<span class="Delimiter">,</span> const list<string>& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
for <span class="Delimiter">(</span>list<string>::const_iterator p = in<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != in<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span>
trace<span class="Delimiter">(</span>label<span class="Delimiter">)</span> << *p<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
bool check_trace_contents<span class="Delimiter">(</span>string FUNCTION<span class="Delimiter">,</span> string FILE<span class="Delimiter">,</span> int LINE<span class="Delimiter">,</span> string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// missing layer == anywhere, frame, hierarchical layers</span>
vector<string> expected_lines = split<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">"^D"</span><span class="Delimiter">);</span>
index_t curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>curr_expected_line < expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">()</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span>
++curr_expected_line<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_expected_line == expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
string layer<span class="Delimiter">,</span> frame<span class="Delimiter">,</span> contents<span class="Delimiter">;</span>
parse_layer_frame_contents<span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">),</span> &layer<span class="Delimiter">,</span> &frame<span class="Delimiter">,</span> &contents<span class="Delimiter">);</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!layer<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && !prefix_match<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>!frame<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && strtol<span class="Delimiter">(</span>frame<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> <span class="Constant">NULL</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">)</span> != p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>first<span class="Delimiter">)</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>contents != p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second<span class="Delimiter">)</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
++curr_expected_line<span class="Delimiter">;</span>
while <span class="Delimiter">(</span>curr_expected_line < expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">()</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span>
++curr_expected_line<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_expected_line == expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
parse_layer_frame_contents<span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">),</span> &layer<span class="Delimiter">,</span> &frame<span class="Delimiter">,</span> &contents<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
++Num_failures<span class="Delimiter">;</span>
cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << FUNCTION << <span class="Constant">"("</span> << FILE << <span class="Constant">":"</span> << LINE << <span class="Constant">"): missing ["</span> << contents << <span class="Constant">"] in trace:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
DUMP<span class="Delimiter">(</span>layer<span class="Delimiter">);</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
void parse_layer_frame_contents<span class="Delimiter">(</span>const string& orig<span class="Delimiter">,</span> string* layer<span class="Delimiter">,</span> string* frame<span class="Delimiter">,</span> string* contents<span class="Delimiter">)</span> <span class="Delimiter">{</span>
string layer_and_frame<span class="Delimiter">;</span>
parse_contents<span class="Delimiter">(</span>orig<span class="Delimiter">,</span> <span class="Constant">": "</span><span class="Delimiter">,</span> &layer_and_frame<span class="Delimiter">,</span> contents<span class="Delimiter">);</span>
parse_layer_and_frame<span class="Delimiter">(</span>layer_and_frame<span class="Delimiter">,</span> layer<span class="Delimiter">,</span> frame<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
void parse_contents<span class="Delimiter">(</span>const string& s<span class="Delimiter">,</span> const string& delim<span class="Delimiter">,</span> string* prefix<span class="Delimiter">,</span> string* contents<span class="Delimiter">)</span> <span class="Delimiter">{</span>
index_t pos = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>pos == NOT_FOUND<span class="Delimiter">)</span> <span class="Delimiter">{</span>
*prefix = <span class="Constant">""</span><span class="Delimiter">;</span>
*contents = s<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
else <span class="Delimiter">{</span>
*prefix = s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> pos<span class="Delimiter">);</span>
*contents = s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span>pos+delim<span class="Delimiter">.</span>size<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
void parse_layer_and_frame<span class="Delimiter">(</span>const string& orig<span class="Delimiter">,</span> string* layer<span class="Delimiter">,</span> string* frame<span class="Delimiter">)</span> <span class="Delimiter">{</span>
index_t last_slash = orig<span class="Delimiter">.</span>rfind<span class="Delimiter">(</span><span class="Constant">'/'</span><span class="Delimiter">);</span>
if <span class="Delimiter">(</span>last_slash == NOT_FOUND
|| orig<span class="Delimiter">.</span>find_last_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789"</span><span class="Delimiter">)</span> != last_slash<span class="Delimiter">)</span> <span class="Delimiter">{</span>
*layer = orig<span class="Delimiter">;</span>
*frame = <span class="Constant">""</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
else <span class="Delimiter">{</span>
*layer = orig<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> last_slash<span class="Delimiter">);</span>
*frame = orig<span class="Delimiter">.</span>substr<span class="Delimiter">(</span>last_slash+<span class="Constant">1</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
^L
bool check_trace_contents<span class="Delimiter">(</span>string FUNCTION<span class="Delimiter">,</span> string FILE<span class="Delimiter">,</span> int LINE<span class="Delimiter">,</span> string layer<span class="Delimiter">,</span> string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// empty layer == everything, multiple layers, hierarchical layers</span>
vector<string> expected_lines = split<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">"^D"</span><span class="Delimiter">);</span>
index_t curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>curr_expected_line < expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">()</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span>
++curr_expected_line<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_expected_line == expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
vector<string> layers = split<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!layer<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && !any_prefix_match<span class="Delimiter">(</span>layers<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second != expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">))</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
++curr_expected_line<span class="Delimiter">;</span>
while <span class="Delimiter">(</span>curr_expected_line < expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">()</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span>
++curr_expected_line<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_expected_line == expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
++Num_failures<span class="Delimiter">;</span>
cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << FUNCTION << <span class="Constant">"("</span> << FILE << <span class="Constant">":"</span> << LINE << <span class="Constant">"): missing ["</span> << expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">)</span> << <span class="Constant">"] in trace:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
DUMP<span class="Delimiter">(</span>layer<span class="Delimiter">);</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="PreProc">#define CHECK_TRACE_CONTENTS(</span><span class="Delimiter">...</span><span class="PreProc">) check_trace_contents(__FUNCTION__</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Constant">__FILE__</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Constant">__LINE__</span><span class="Delimiter">,</span><span class="PreProc"> __VA_ARGS__)</span>
int trace_count<span class="Delimiter">(</span>string layer<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> trace_count<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
int trace_count<span class="Delimiter">(</span>string layer<span class="Delimiter">,</span> string line<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
long result = <span class="Constant">0</span><span class="Delimiter">;</span>
vector<string> layers = split<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>any_prefix_match<span class="Delimiter">(</span>layers<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span>
if <span class="Delimiter">(</span>line == <span class="Constant">""</span> || p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second == line<span class="Delimiter">)</span>
++result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
int trace_count<span class="Delimiter">(</span>string layer<span class="Delimiter">,</span> int frame<span class="Delimiter">,</span> string line<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
long result = <span class="Constant">0</span><span class="Delimiter">;</span>
vector<string> layers = split<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>any_prefix_match<span class="Delimiter">(</span>layers<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">)</span> && p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>first == frame<span class="Delimiter">)</span>
if <span class="Delimiter">(</span>line == <span class="Constant">""</span> || p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second == line<span class="Delimiter">)</span>
++result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="PreProc">#define CHECK_TRACE_WARNS() CHECK(trace_count(</span><span class="Constant">"warn"</span><span class="PreProc">) > </span><span class="Constant">0</span><span class="PreProc">)</span>
<span class="PreProc">#define CHECK_TRACE_DOESNT_WARN() \</span>
<span class="PreProc"> </span>if<span class="PreProc"> (trace_count(</span><span class="Constant">"warn"</span><span class="PreProc">) > </span><span class="Constant">0</span><span class="PreProc">) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
<span class="PreProc"> ++Num_failures</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc"> cerr << </span><span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span><span class="PreProc"> << __FUNCTION__ << </span><span class="Constant">"("</span><span class="PreProc"> << </span><span class="Constant">__FILE__</span><span class="PreProc"> << </span><span class="Constant">":"</span><span class="PreProc"> << </span><span class="Constant">__LINE__</span><span class="PreProc"> << </span><span class="Constant">"): unexpected warnings</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc"> DUMP(</span><span class="Constant">"warn"</span><span class="PreProc">)</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc"> Passed = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc"> </span><span class="Identifier">return</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span class="PreProc"> </span><span class="Delimiter">}</span>
bool trace_doesnt_contain<span class="Delimiter">(</span>string layer<span class="Delimiter">,</span> string line<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> trace_count<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> line<span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
bool trace_doesnt_contain<span class="Delimiter">(</span>string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<string> tmp = split<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">": "</span><span class="Delimiter">);</span>
<span class="Identifier">return</span> trace_doesnt_contain<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span>
<span class="Delimiter">}</span>
bool trace_doesnt_contain<span class="Delimiter">(</span>string layer<span class="Delimiter">,</span> int frame<span class="Delimiter">,</span> string line<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> trace_count<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> frame<span class="Delimiter">,</span> line<span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="PreProc">#define CHECK_TRACE_DOESNT_CONTAIN(</span><span class="Delimiter">...</span><span class="PreProc">) CHECK(trace_doesnt_contain(__VA_ARGS__))</span>
^L
<span class="Comment">// manage layer counts in Trace_stream using RAII</span>
struct lease_trace_frame <span class="Delimiter">{</span>
string layer<span class="Delimiter">;</span>
lease_trace_frame<span class="Delimiter">(</span>string l<span class="Delimiter">)</span> :layer<span class="Delimiter">(</span>l<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
++Trace_stream<span class="Delimiter">-></span>frame[layer]<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
~lease_trace_frame<span class="Delimiter">()</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
--Trace_stream<span class="Delimiter">-></span>frame[layer]<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">};</span>
<span class="PreProc">#define new_trace_frame(layer) lease_trace_frame leased_frame(layer)</span><span class="Delimiter">;</span>
bool check_trace_contents<span class="Delimiter">(</span>string FUNCTION<span class="Delimiter">,</span> string FILE<span class="Delimiter">,</span> int LINE<span class="Delimiter">,</span> string layer<span class="Delimiter">,</span> int frame<span class="Delimiter">,</span> string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// multiple layers, hierarchical layers</span>
vector<string> expected_lines = split<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">"^D"</span><span class="Delimiter">);</span> <span class="Comment">// hack: doesn't handle newlines in embedded in lines</span>
index_t curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>curr_expected_line < expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">()</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span>
++curr_expected_line<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_expected_line == expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
vector<string> layers = split<span class="Delimiter">(</span>layer<span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!layer<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && !any_prefix_match<span class="Delimiter">(</span>layers<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>first != frame<span class="Delimiter">)</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second != expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">))</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
++curr_expected_line<span class="Delimiter">;</span>
while <span class="Delimiter">(</span>curr_expected_line < expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">()</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span>
++curr_expected_line<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_expected_line == expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
++Num_failures<span class="Delimiter">;</span>
cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << FUNCTION << <span class="Constant">"("</span> << FILE << <span class="Constant">":"</span> << LINE << <span class="Constant">"): missing ["</span> << expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">)</span> << <span class="Constant">"] in trace/"</span> << frame << <span class="Constant">":</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
DUMP<span class="Delimiter">(</span>layer<span class="Delimiter">);</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="PreProc">#define CHECK_TRACE_TOP(layer</span><span class="Delimiter">,</span><span class="PreProc"> expected) CHECK_TRACE_CONTENTS(layer</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Constant">1</span><span class="Delimiter">,</span><span class="PreProc"> expected)</span>
^L
vector<string> split<span class="Delimiter">(</span>string s<span class="Delimiter">,</span> string delim<span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<string> result<span class="Delimiter">;</span>
index_t begin=<span class="Constant">0</span><span class="Delimiter">,</span> end=s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span>
while <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>end == NOT_FOUND<span class="Delimiter">)</span> <span class="Delimiter">{</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> NOT_FOUND<span class="Delimiter">));</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> end-begin<span class="Delimiter">));</span>
begin = end+delim<span class="Delimiter">.</span>size<span class="Delimiter">();</span>
end = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">,</span> begin<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
bool any_prefix_match<span class="Delimiter">(</span>const vector<string>& pats<span class="Delimiter">,</span> const string& needle<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>pats<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>*pats<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">'/'</span><span class="Delimiter">)</span>
<span class="Comment">// prefix match not requested</span>
<span class="Identifier">return</span> find<span class="Delimiter">(</span>pats<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> pats<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> needle<span class="Delimiter">)</span> != pats<span class="Delimiter">.</span>end<span class="Delimiter">();</span>
<span class="Comment">// first pat ends in a '/'; assume all pats do.</span>
for <span class="Delimiter">(</span>vector<string>::const_iterator p = pats<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != pats<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span>
if <span class="Delimiter">(</span>headmatch<span class="Delimiter">(</span>needle<span class="Delimiter">,</span> *p<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
bool prefix_match<span class="Delimiter">(</span>const string& pat<span class="Delimiter">,</span> const string& needle<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>*pat<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">'/'</span><span class="Delimiter">)</span>
<span class="Comment">// prefix match not requested</span>
<span class="Identifier">return</span> pat == needle<span class="Delimiter">;</span>
<span class="Identifier">return</span> headmatch<span class="Delimiter">(</span>needle<span class="Delimiter">,</span> pat<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
bool headmatch<span class="Delimiter">(</span>const string& s<span class="Delimiter">,</span> const string& pat<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>pat<span class="Delimiter">.</span>size<span class="Delimiter">()</span> > s<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> std::mismatch<span class="Delimiter">(</span>pat<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> pat<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> s<span class="Delimiter">.</span>begin<span class="Delimiter">()).</span>first == pat<span class="Delimiter">.</span>end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Includes")</span>
<span class="PreProc">#include</span><span class="Constant"><vector></span>
using std::vector<span class="Delimiter">;</span>
<span class="PreProc">#include</span><span class="Constant"><list></span>
using std::list<span class="Delimiter">;</span>
<span class="PreProc">#include</span><span class="Constant"><utility></span>
using std::pair<span class="Delimiter">;</span>
<span class="PreProc">#include</span><span class="Constant"><map></span>
using std::map<span class="Delimiter">;</span>
<span class="PreProc">#include</span><span class="Constant"><set></span>
using std::set<span class="Delimiter">;</span>
<span class="PreProc">#include</span><span class="Constant"><algorithm></span>
<span class="PreProc">#include</span><span class="Constant"><iostream></span>
using std::istream<span class="Delimiter">;</span>
using std::ostream<span class="Delimiter">;</span>
using std::cin<span class="Delimiter">;</span>
using std::cout<span class="Delimiter">;</span>
using std::cerr<span class="Delimiter">;</span>
<span class="PreProc">#include</span><span class="Constant"><sstream></span>
using std::istringstream<span class="Delimiter">;</span>
using std::ostringstream<span class="Delimiter">;</span>
<span class="PreProc">#include</span><span class="Constant"><fstream></span>
using std::ifstream<span class="Delimiter">;</span>
using std::ofstream<span class="Delimiter">;</span>
<span class="PreProc">#define unused __attribute__((unused))</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|