forked from cpplint/cpplint
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcpplint.py
More file actions
executable file
·6900 lines (5943 loc) · 256 KB
/
Copy pathcpplint.py
File metadata and controls
executable file
·6900 lines (5943 loc) · 256 KB
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
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#!/usr/bin/env python
#
# Copyright (c) 2009 Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Does google-lint on c++ files.
The goal of this script is to identify places in the code that *may*
be in non-compliance with google style. It does not attempt to fix
up these problems -- the point is to educate. It does also not
attempt to find all problems, or to ensure that everything it does
find is legitimately a problem.
In particular, we can get very confused by /* and // inside strings!
We do a small hack, which is to ignore //'s with "'s after them on the
same line, but it is far from perfect (in either direction).
"""
import codecs
import copy
import getopt
import glob
import itertools
import math # for log
import os
import re
import sre_compile
import string
import sys
import sysconfig
import unicodedata
import xml.etree.ElementTree
# if empty, use defaults
_valid_extensions = set([])
__VERSION__ = '1.5.3'
try:
xrange # Python 2
except NameError:
# -- pylint: disable=redefined-builtin
xrange = range # Python 3
_USAGE = """
Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit|sed|gsed]
[--filter=-x,+y,...]
[--counting=total|toplevel|detailed] [--root=subdir]
[--repository=path]
[--linelength=digits] [--headers=x,y,...]
[--recursive]
[--exclude=path]
[--extensions=hpp,cpp,...]
[--includeorder=default|standardcfirst]
[--quiet]
[--version]
<file> [file] ...
Style checker for C/C++ source files.
This is a fork of the Google style checker with minor extensions.
The style guidelines this tries to follow are those in
https://google.github.io/styleguide/cppguide.html
Every problem is given a confidence score from 1-5, with 5 meaning we are
certain of the problem, and 1 meaning it could be a legitimate construct.
This will miss some errors, and is not a substitute for a code review.
To suppress false-positive errors of a certain category, add a
'NOLINT(category)' comment to the line. NOLINT or NOLINT(*)
suppresses errors of all categories on that line.
The files passed in will be linted; at least one file must be provided.
Default linted extensions are %s.
Other file types will be ignored.
Change the extensions with the --extensions flag.
Flags:
output=emacs|eclipse|vs7|junit|sed|gsed
By default, the output is formatted to ease emacs parsing. Visual Studio
compatible output (vs7) may also be used. Further support exists for
eclipse (eclipse), and JUnit (junit). XML parsers such as those used
in Jenkins and Bamboo may also be used.
The sed format outputs sed commands that should fix some of the errors.
Note that this requires gnu sed. If that is installed as gsed on your
system (common e.g. on macOS with homebrew) you can use the gsed output
format. Sed commands are written to stdout, not stderr, so you should be
able to pipe output straight to a shell to run the fixes.
verbose=#
Specify a number 0-5 to restrict errors to certain verbosity levels.
Errors with lower verbosity levels have lower confidence and are more
likely to be false positives.
quiet
Don't print anything if no errors are found.
filter=-x,+y,...
Specify a comma-separated list of category-filters to apply: only
error messages whose category names pass the filters will be printed.
(Category names are printed with the message and look like
"[whitespace/indent]".) Filters are evaluated left to right.
"-FOO" and "FOO" means "do not print categories that start with FOO".
"+FOO" means "do print categories that start with FOO".
Examples: --filter=-whitespace,+whitespace/braces
--filter=whitespace,runtime/printf,+runtime/printf_format
--filter=-,+build/include_what_you_use
To see a list of all the categories used in cpplint, pass no arg:
--filter=
counting=total|toplevel|detailed
The total number of errors found is always printed. If
'toplevel' is provided, then the count of errors in each of
the top-level categories like 'build' and 'whitespace' will
also be printed. If 'detailed' is provided, then a count
is provided for each category like 'build/class'.
repository=path
The top level directory of the repository, used to derive the header
guard CPP variable. By default, this is determined by searching for a
path that contains .git, .hg, or .svn. When this flag is specified, the
given path is used instead. This option allows the header guard CPP
variable to remain consistent even if members of a team have different
repository root directories (such as when checking out a subdirectory
with SVN). In addition, users of non-mainstream version control systems
can use this flag to ensure readable header guard CPP variables.
Examples:
Assuming that Alice checks out ProjectName and Bob checks out
ProjectName/trunk and trunk contains src/chrome/ui/browser.h, then
with no --repository flag, the header guard CPP variable will be:
Alice => TRUNK_SRC_CHROME_BROWSER_UI_BROWSER_H_
Bob => SRC_CHROME_BROWSER_UI_BROWSER_H_
If Alice uses the --repository=trunk flag and Bob omits the flag or
uses --repository=. then the header guard CPP variable will be:
Alice => SRC_CHROME_BROWSER_UI_BROWSER_H_
Bob => SRC_CHROME_BROWSER_UI_BROWSER_H_
root=subdir
The root directory used for deriving header guard CPP variable.
This directory is relative to the top level directory of the repository
which by default is determined by searching for a directory that contains
.git, .hg, or .svn but can also be controlled with the --repository flag.
If the specified directory does not exist, this flag is ignored.
Examples:
Assuming that src is the top level directory of the repository (and
cwd=top/src), the header guard CPP variables for
src/chrome/browser/ui/browser.h are:
No flag => CHROME_BROWSER_UI_BROWSER_H_
--root=chrome => BROWSER_UI_BROWSER_H_
--root=chrome/browser => UI_BROWSER_H_
--root=.. => SRC_CHROME_BROWSER_UI_BROWSER_H_
linelength=digits
This is the allowed line length for the project. The default value is
80 characters.
Examples:
--linelength=120
recursive
Search for files to lint recursively. Each directory given in the list
of files to be linted is replaced by all files that descend from that
directory. Files with extensions not in the valid extensions list are
excluded.
exclude=path
Exclude the given path from the list of files to be linted. Relative
paths are evaluated relative to the current directory and shell globbing
is performed. This flag can be provided multiple times to exclude
multiple files.
Examples:
--exclude=one.cc
--exclude=src/*.cc
--exclude=src/*.cc --exclude=test/*.cc
extensions=extension,extension,...
The allowed file extensions that cpplint will check
Examples:
--extensions=%s
includeorder=default|standardcfirst
For the build/include_order rule, the default is to blindly assume angle
bracket includes with file extension are c-system-headers (default),
even knowing this will have false classifications.
The default is established at google.
standardcfirst means to instead use an allow-list of known c headers and
treat all others as separate group of "other system headers". The C headers
included are those of the C-standard lib and closely related ones.
headers=x,y,...
The header extensions that cpplint will treat as .h in checks. Values are
automatically added to --extensions list.
(by default, only files with extensions %s will be assumed to be headers)
Examples:
--headers=%s
--headers=hpp,hxx
--headers=hpp
cpplint.py supports per-directory configurations specified in CPPLINT.cfg
files. CPPLINT.cfg file can contain a number of key=value pairs.
Currently the following options are supported:
set noparent
filter=+filter1,-filter2,...
exclude_files=regex
linelength=80
root=subdir
headers=x,y,...
"set noparent" option prevents cpplint from traversing directory tree
upwards looking for more .cfg files in parent directories. This option
is usually placed in the top-level project directory.
The "filter" option is similar in function to --filter flag. It specifies
message filters in addition to the |_DEFAULT_FILTERS| and those specified
through --filter command-line flag.
"exclude_files" allows to specify a regular expression to be matched against
a file name. If the expression matches, the file is skipped and not run
through the linter.
"linelength" allows to specify the allowed line length for the project.
The "root" option is similar in function to the --root flag (see example
above). Paths are relative to the directory of the CPPLINT.cfg.
The "headers" option is similar in function to the --headers flag
(see example above).
CPPLINT.cfg has an effect on files in the same directory and all
sub-directories, unless overridden by a nested configuration file.
Example file:
filter=-build/include_order,+build/include_alpha
exclude_files=.*\\.cc
The above example disables build/include_order warning and enables
build/include_alpha as well as excludes all .cc from being
processed by linter, in the current directory (where the .cfg
file is located) and all sub-directories.
"""
# We categorize each error message we print. Here are the categories.
# We want an explicit list so we can list them all in cpplint --filter=.
# If you add a new error message with a new category, add it to the list
# here! cpplint_unittest.py should tell you if you forget to do this.
_ERROR_CATEGORIES = [
'build/class',
'build/c++11',
'build/c++14',
'build/c++tr1',
'build/deprecated',
'build/endif_comment',
'build/explicit_make_pair',
'build/forward_decl',
'build/header_guard',
'build/include',
'build/include_subdir',
'build/include_alpha',
'build/include_order',
'build/include_what_you_use',
'build/namespaces_headers',
'build/namespaces_literals',
'build/namespaces',
'build/printf_format',
'build/storage_class',
'legal/copyright',
'readability/alt_tokens',
'readability/braces',
'readability/casting',
'readability/check',
'readability/constructors',
'readability/fn_size',
'readability/inheritance',
'readability/multiline_comment',
'readability/multiline_string',
'readability/namespace',
'readability/nolint',
'readability/nul',
'readability/strings',
'readability/todo',
'readability/utf8',
'runtime/arrays',
'runtime/casting',
'runtime/explicit',
'runtime/int',
'runtime/init',
'runtime/invalid_increment',
'runtime/member_string_references',
'runtime/memset',
'runtime/indentation_namespace',
'runtime/operator',
'runtime/printf',
'runtime/printf_format',
'runtime/references',
'runtime/string',
'runtime/threadsafe_fn',
'runtime/vlog',
'whitespace/blank_line',
'whitespace/braces',
'whitespace/comma',
'whitespace/comments',
'whitespace/empty_conditional_body',
'whitespace/empty_if_body',
'whitespace/empty_loop_body',
'whitespace/end_of_line',
'whitespace/ending_newline',
'whitespace/forcolon',
'whitespace/indent',
'whitespace/line_length',
'whitespace/newline',
'whitespace/operators',
'whitespace/parens',
'whitespace/semicolon',
'whitespace/tab',
'whitespace/todo',
]
# keywords to use with --outputs which generate stdout for machine processing
_MACHINE_OUTPUTS = [
'junit',
'sed',
'gsed'
]
# These error categories are no longer enforced by cpplint, but for backwards-
# compatibility they may still appear in NOLINT comments.
_LEGACY_ERROR_CATEGORIES = [
'readability/streams',
'readability/function',
]
# The default state of the category filter. This is overridden by the --filter=
# flag. By default all errors are on, so only add here categories that should be
# off by default (i.e., categories that must be enabled by the --filter= flags).
# All entries here should start with a '-' or '+', as in the --filter= flag.
_DEFAULT_FILTERS = ['-build/include_alpha']
# The default list of categories suppressed for C (not C++) files.
_DEFAULT_C_SUPPRESSED_CATEGORIES = [
'readability/casting',
]
# The default list of categories suppressed for Linux Kernel files.
_DEFAULT_KERNEL_SUPPRESSED_CATEGORIES = [
'whitespace/tab',
]
# We used to check for high-bit characters, but after much discussion we
# decided those were OK, as long as they were in UTF-8 and didn't represent
# hard-coded international strings, which belong in a separate i18n file.
# C++ headers
_CPP_HEADERS = frozenset([
# Legacy
'algobase.h',
'algo.h',
'alloc.h',
'builtinbuf.h',
'bvector.h',
'complex.h',
'defalloc.h',
'deque.h',
'editbuf.h',
'fstream.h',
'function.h',
'hash_map',
'hash_map.h',
'hash_set',
'hash_set.h',
'hashtable.h',
'heap.h',
'indstream.h',
'iomanip.h',
'iostream.h',
'istream.h',
'iterator.h',
'list.h',
'map.h',
'multimap.h',
'multiset.h',
'ostream.h',
'pair.h',
'parsestream.h',
'pfstream.h',
'procbuf.h',
'pthread_alloc',
'pthread_alloc.h',
'rope',
'rope.h',
'ropeimpl.h',
'set.h',
'slist',
'slist.h',
'stack.h',
'stdiostream.h',
'stl_alloc.h',
'stl_relops.h',
'streambuf.h',
'stream.h',
'strfile.h',
'strstream.h',
'tempbuf.h',
'tree.h',
'type_traits.h',
'vector.h',
# 17.6.1.2 C++ library headers
'algorithm',
'array',
'atomic',
'bitset',
'chrono',
'codecvt',
'complex',
'condition_variable',
'deque',
'exception',
'forward_list',
'fstream',
'functional',
'future',
'initializer_list',
'iomanip',
'ios',
'iosfwd',
'iostream',
'istream',
'iterator',
'limits',
'list',
'locale',
'map',
'memory',
'mutex',
'new',
'numeric',
'ostream',
'queue',
'random',
'ratio',
'regex',
'scoped_allocator',
'set',
'sstream',
'stack',
'stdexcept',
'streambuf',
'string',
'strstream',
'system_error',
'thread',
'tuple',
'typeindex',
'typeinfo',
'type_traits',
'unordered_map',
'unordered_set',
'utility',
'valarray',
'vector',
# 17.6.1.2 C++14 headers
'shared_mutex',
# 17.6.1.2 C++17 headers
'any',
'charconv',
'codecvt',
'execution',
'filesystem',
'memory_resource',
'optional',
'string_view',
'variant',
# 17.6.1.2 C++ headers for C library facilities
'cassert',
'ccomplex',
'cctype',
'cerrno',
'cfenv',
'cfloat',
'cinttypes',
'ciso646',
'climits',
'clocale',
'cmath',
'csetjmp',
'csignal',
'cstdalign',
'cstdarg',
'cstdbool',
'cstddef',
'cstdint',
'cstdio',
'cstdlib',
'cstring',
'ctgmath',
'ctime',
'cuchar',
'cwchar',
'cwctype',
])
# C headers
_C_HEADERS = frozenset([
# System C headers
'assert.h',
'complex.h',
'ctype.h',
'errno.h',
'fenv.h',
'float.h',
'inttypes.h',
'iso646.h',
'limits.h',
'locale.h',
'math.h',
'setjmp.h',
'signal.h',
'stdalign.h',
'stdarg.h',
'stdatomic.h',
'stdbool.h',
'stddef.h',
'stdint.h',
'stdio.h',
'stdlib.h',
'stdnoreturn.h',
'string.h',
'tgmath.h',
'threads.h',
'time.h',
'uchar.h',
'wchar.h',
'wctype.h',
# additional POSIX C headers
'aio.h',
'arpa/inet.h',
'cpio.h',
'dirent.h',
'dlfcn.h',
'fcntl.h',
'fmtmsg.h',
'fnmatch.h',
'ftw.h',
'glob.h',
'grp.h',
'iconv.h',
'langinfo.h',
'libgen.h',
'monetary.h',
'mqueue.h',
'ndbm.h',
'net/if.h',
'netdb.h',
'netinet/in.h',
'netinet/tcp.h',
'nl_types.h',
'poll.h',
'pthread.h',
'pwd.h',
'regex.h',
'sched.h',
'search.h',
'semaphore.h',
'setjmp.h',
'signal.h',
'spawn.h',
'strings.h',
'stropts.h',
'syslog.h',
'tar.h',
'termios.h',
'trace.h',
'ulimit.h',
'unistd.h',
'utime.h',
'utmpx.h',
'wordexp.h',
# additional GNUlib headers
'a.out.h',
'aliases.h',
'alloca.h',
'ar.h',
'argp.h',
'argz.h',
'byteswap.h',
'crypt.h',
'endian.h',
'envz.h',
'err.h',
'error.h',
'execinfo.h',
'fpu_control.h',
'fstab.h',
'fts.h',
'getopt.h',
'gshadow.h',
'ieee754.h',
'ifaddrs.h',
'libintl.h',
'mcheck.h',
'mntent.h',
'obstack.h',
'paths.h',
'printf.h',
'pty.h',
'resolv.h',
'shadow.h',
'sysexits.h',
'ttyent.h',
# Additional linux glibc headers
'dlfcn.h',
'elf.h',
'features.h',
'gconv.h',
'gnu-versions.h',
'lastlog.h',
'libio.h',
'link.h',
'malloc.h',
'memory.h',
'netash/ash.h',
'netatalk/at.h',
'netax25/ax25.h',
'neteconet/ec.h',
'netipx/ipx.h',
'netiucv/iucv.h',
'netpacket/packet.h',
'netrom/netrom.h',
'netrose/rose.h',
'nfs/nfs.h',
'nl_types.h',
'nss.h',
're_comp.h',
'regexp.h',
'sched.h',
'sgtty.h',
'stab.h',
'stdc-predef.h',
'stdio_ext.h',
'syscall.h',
'termio.h',
'thread_db.h',
'ucontext.h',
'ustat.h',
'utmp.h',
'values.h',
'wait.h',
'xlocale.h',
# Hardware specific headers
'arm_neon.h',
'emmintrin.h',
'xmmintin.h',
])
# Folders of C libraries so commonly used in C++,
# that they have parity with standard C libraries.
C_STANDARD_HEADER_FOLDERS = frozenset([
# standard C library
"sys",
# glibc for linux
"arpa",
"asm-generic",
"bits",
"gnu",
"net",
"netinet",
"protocols",
"rpc",
"rpcsvc",
"scsi",
# linux kernel header
"drm",
"linux",
"misc",
"mtd",
"rdma",
"sound",
"video",
"xen",
])
# Type names
_TYPES = re.compile(
r'^(?:'
# [dcl.type.simple]
r'(char(16_t|32_t)?)|wchar_t|'
r'bool|short|int|long|signed|unsigned|float|double|'
# [support.types]
r'(ptrdiff_t|size_t|max_align_t|nullptr_t)|'
# [cstdint.syn]
r'(u?int(_fast|_least)?(8|16|32|64)_t)|'
r'(u?int(max|ptr)_t)|'
r')$')
# These headers are excluded from [build/include] and [build/include_order]
# checks:
# - Anything not following google file name conventions (containing an
# uppercase character, such as Python.h or nsStringAPI.h, for example).
# - Lua headers.
_THIRD_PARTY_HEADERS_PATTERN = re.compile(
r'^(?:[^/]*[A-Z][^/]*\.h|lua\.h|lauxlib\.h|lualib\.h)$')
# Pattern for matching FileInfo.BaseName() against test file name
_test_suffixes = ['_test', '_regtest', '_unittest']
_TEST_FILE_SUFFIX = '(' + '|'.join(_test_suffixes) + r')$'
# Pattern that matches only complete whitespace, possibly across multiple lines.
_EMPTY_CONDITIONAL_BODY_PATTERN = re.compile(r'^\s*$', re.DOTALL)
# Assertion macros. These are defined in base/logging.h and
# testing/base/public/gunit.h.
_CHECK_MACROS = [
'DCHECK', 'CHECK',
'EXPECT_TRUE', 'ASSERT_TRUE',
'EXPECT_FALSE', 'ASSERT_FALSE',
]
# Replacement macros for CHECK/DCHECK/EXPECT_TRUE/EXPECT_FALSE
_CHECK_REPLACEMENT = dict([(macro_var, {}) for macro_var in _CHECK_MACROS])
for op, replacement in [('==', 'EQ'), ('!=', 'NE'),
('>=', 'GE'), ('>', 'GT'),
('<=', 'LE'), ('<', 'LT')]:
_CHECK_REPLACEMENT['DCHECK'][op] = 'DCHECK_%s' % replacement
_CHECK_REPLACEMENT['CHECK'][op] = 'CHECK_%s' % replacement
_CHECK_REPLACEMENT['EXPECT_TRUE'][op] = 'EXPECT_%s' % replacement
_CHECK_REPLACEMENT['ASSERT_TRUE'][op] = 'ASSERT_%s' % replacement
for op, inv_replacement in [('==', 'NE'), ('!=', 'EQ'),
('>=', 'LT'), ('>', 'LE'),
('<=', 'GT'), ('<', 'GE')]:
_CHECK_REPLACEMENT['EXPECT_FALSE'][op] = 'EXPECT_%s' % inv_replacement
_CHECK_REPLACEMENT['ASSERT_FALSE'][op] = 'ASSERT_%s' % inv_replacement
# Alternative tokens and their replacements. For full list, see section 2.5
# Alternative tokens [lex.digraph] in the C++ standard.
#
# Digraphs (such as '%:') are not included here since it's a mess to
# match those on a word boundary.
_ALT_TOKEN_REPLACEMENT = {
'and': '&&',
'bitor': '|',
'or': '||',
'xor': '^',
'compl': '~',
'bitand': '&',
'and_eq': '&=',
'or_eq': '|=',
'xor_eq': '^=',
'not': '!',
'not_eq': '!='
}
# Compile regular expression that matches all the above keywords. The "[ =()]"
# bit is meant to avoid matching these keywords outside of boolean expressions.
#
# False positives include C-style multi-line comments and multi-line strings
# but those have always been troublesome for cpplint.
_ALT_TOKEN_REPLACEMENT_PATTERN = re.compile(
r'[ =()](' + ('|'.join(_ALT_TOKEN_REPLACEMENT.keys())) + r')(?=[ (]|$)')
# These constants define types of headers for use with
# _IncludeState.CheckNextIncludeOrder().
_C_SYS_HEADER = 1
_CPP_SYS_HEADER = 2
_OTHER_SYS_HEADER = 3
_LIKELY_MY_HEADER = 4
_POSSIBLE_MY_HEADER = 5
_OTHER_HEADER = 6
# These constants define the current inline assembly state
_NO_ASM = 0 # Outside of inline assembly block
_INSIDE_ASM = 1 # Inside inline assembly block
_END_ASM = 2 # Last line of inline assembly block
_BLOCK_ASM = 3 # The whole block is an inline assembly block
# Match start of assembly blocks
_MATCH_ASM = re.compile(r'^\s*(?:asm|_asm|__asm|__asm__)'
r'(?:\s+(volatile|__volatile__))?'
r'\s*[{(]')
# Match strings that indicate we're working on a C (not C++) file.
_SEARCH_C_FILE = re.compile(r'\b(?:LINT_C_FILE|'
r'vim?:\s*.*(\s*|:)filetype=c(\s*|:|$))')
# Match string that indicates we're working on a Linux Kernel file.
_SEARCH_KERNEL_FILE = re.compile(r'\b(?:LINT_KERNEL_FILE)')
# Commands for sed to fix the problem
_SED_FIXUPS = {
'Remove spaces around =': r's/ = /=/',
'Remove spaces around !=': r's/ != /!=/',
'Remove space before ( in if (': r's/if (/if(/',
'Remove space before ( in for (': r's/for (/for(/',
'Remove space before ( in while (': r's/while (/while(/',
'Remove space before ( in switch (': r's/switch (/switch(/',
'Should have a space between // and comment': r's/\/\//\/\/ /',
'Missing space before {': r's/\([^ ]\){/\1 {/',
'Tab found, replace by spaces': r's/\t/ /g',
'Line ends in whitespace. Consider deleting these extra spaces.': r's/\s*$//',
'You don\'t need a ; after a }': r's/};/}/',
'Missing space after ,': r's/,\([^ ]\)/, \1/g',
}
_regexp_compile_cache = {}
# {str, set(int)}: a map from error categories to sets of linenumbers
# on which those errors are expected and should be suppressed.
_error_suppressions = {}
# The root directory used for deriving header guard CPP variable.
# This is set by --root flag.
_root = None
_root_debug = False
# The top level repository directory. If set, _root is calculated relative to
# this directory instead of the directory containing version control artifacts.
# This is set by the --repository flag.
_repository = None
# Files to exclude from linting. This is set by the --exclude flag.
_excludes = None
# Whether to supress all PrintInfo messages, UNRELATED to --quiet flag
_quiet = False
# The allowed line length of files.
# This is set by --linelength flag.
_line_length = 80
# This allows to use different include order rule than default
_include_order = "default"
try:
unicode
except NameError:
# -- pylint: disable=redefined-builtin
basestring = unicode = str
try:
long
except NameError:
# -- pylint: disable=redefined-builtin
long = int
if sys.version_info < (3,):
# -- pylint: disable=no-member
# BINARY_TYPE = str
itervalues = dict.itervalues
iteritems = dict.iteritems
else:
# BINARY_TYPE = bytes
itervalues = dict.values
iteritems = dict.items
def unicode_escape_decode(x):
if sys.version_info < (3,):
return codecs.unicode_escape_decode(x)[0]
else:
return x
# Treat all headers starting with 'h' equally: .h, .hpp, .hxx etc.
# This is set by --headers flag.
_hpp_headers = set([])
# {str, bool}: a map from error categories to booleans which indicate if the
# category should be suppressed for every line.
_global_error_suppressions = {}
def ProcessHppHeadersOption(val):
global _hpp_headers
try:
_hpp_headers = {ext.strip() for ext in val.split(',')}
except ValueError:
PrintUsage('Header extensions must be comma separated list.')
def ProcessIncludeOrderOption(val):
if val is None or val == "default":
pass
elif val == "standardcfirst":
global _include_order
_include_order = val
else:
PrintUsage('Invalid includeorder value %s. Expected default|standardcfirst')
def IsHeaderExtension(file_extension):
return file_extension in GetHeaderExtensions()
def GetHeaderExtensions():
if _hpp_headers:
return _hpp_headers
if _valid_extensions:
return {h for h in _valid_extensions if 'h' in h}
return set(['h', 'hh', 'hpp', 'hxx', 'h++', 'cuh'])
# The allowed extensions for file names
# This is set by --extensions flag
def GetAllExtensions():
return GetHeaderExtensions().union(_valid_extensions or set(
['c', 'cc', 'cpp', 'cxx', 'c++', 'cu']))
def ProcessExtensionsOption(val):
global _valid_extensions
try:
extensions = [ext.strip() for ext in val.split(',')]
_valid_extensions = set(extensions)
except ValueError:
PrintUsage('Extensions should be a comma-separated list of values;'
'for example: extensions=hpp,cpp\n'
'This could not be parsed: "%s"' % (val,))
def GetNonHeaderExtensions():
return GetAllExtensions().difference(GetHeaderExtensions())
def ParseNolintSuppressions(filename, raw_line, linenum, error):
"""Updates the global list of line error-suppressions.
Parses any NOLINT comments on the current line, updating the global
error_suppressions store. Reports an error if the NOLINT comment
was malformed.
Args:
filename: str, the name of the input file.
raw_line: str, the line of input text, with comments.
linenum: int, the number of the current line.
error: function, an error handler.
"""
matched = Search(r'\bNOLINT(NEXTLINE)?\b(\([^)]+\))?', raw_line)
if matched:
if matched.group(1):
suppressed_line = linenum + 1
else:
suppressed_line = linenum
category = matched.group(2)
if category in (None, '(*)'): # => "suppress all"
_error_suppressions.setdefault(None, set()).add(suppressed_line)
else:
if category.startswith('(') and category.endswith(')'):
category = category[1:-1]
if category in _ERROR_CATEGORIES:
_error_suppressions.setdefault(category, set()).add(suppressed_line)
elif category not in _LEGACY_ERROR_CATEGORIES:
error(filename, linenum, 'readability/nolint', 5,
'Unknown NOLINT error category: %s' % category)
def ProcessGlobalSuppresions(lines):
"""Updates the list of global error suppressions.
Parses any lint directives in the file that have global effect.
Args:
lines: An array of strings, each representing a line of the file, with the
last element being empty if the file is terminated with a newline.
"""
for line in lines:
if _SEARCH_C_FILE.search(line):
for category in _DEFAULT_C_SUPPRESSED_CATEGORIES:
_global_error_suppressions[category] = True
if _SEARCH_KERNEL_FILE.search(line):