--
fcf9d3facb12451964ad1850073cbfb6f9739379 by CJ Johnson <johnsoncj@google.com>:
Makes it obvious to readers that the comparison operators do not branch more than needed
PiperOrigin-RevId: 240811527
--
680c586f81f805be68e96caffb28d5f46b6a6511 by Jon Cohen <cohenjon@google.com>:
Consistently use "if(" instead of "if (" in CMake files
PiperOrigin-RevId: 240621819
--
c4acc506648622389f33f564fd94f8dda08cb61a by Tom Manshreck <shreck@google.com>:
Internal change
PiperOrigin-RevId: 240619556
--
ddbc1894944aae96767c876a1ae8696ddaba42a2 by Jon Cohen <cohenjon@google.com>:
Remove the warning about install prefixes when we aren't installing abseil
PiperOrigin-RevId: 240614750
--
086c4fad213d99e875038bc8a1c7268e28a7ebf3 by Abseil Team <absl-team@google.com>:
Adjust some tests and test cases which fail on WebAssembly
PiperOrigin-RevId: 240592367
--
46c2c09723a37ef4911ae3c64aab92e3f0fdba79 by Abseil Team <absl-team@google.com>:
CMake install target update
- Add prefix absl_ to each target when install rule are disabled.
- Disable all install commands when absl is used as subdirectory (Fix#287)
PiperOrigin-RevId: 240575083
--
8d88063ed5b16f982a91950693d37ca18fdd46d8 by Jon Cohen <cohenjon@google.com>:
Correctly link to Threads::Threads for a few cmake targets which were missing it.
PiperOrigin-RevId: 240574513
GitOrigin-RevId: fcf9d3facb12451964ad1850073cbfb6f9739379
Change-Id: I031c57de8cd88554348eb8bd1371d01d15ff1fc7
--
f6c627ce4470a814adc377947b58346eef69a4c9 by Jon Cohen <cohenjon@google.com>:
Don't create install rules when Abseil is used as a subdirectory.
Fix#287
PiperOrigin-RevId: 240559825
--
a5d9b06fe736143068997988b654b5f66ec3266a by Matt Calabrese <calabrese@google.com>:
Make absl::nullopt an inline constexpr variable, as specified in the standard (with a workaround for pre-c++17 compilers).
PiperOrigin-RevId: 240552286
--
d7bee50cff745fbb8d1cdf56a200d9073d311c80 by Abseil Team <absl-team@google.com>:
Internal Change
PiperOrigin-RevId: 240425622
--
828dd49d392d83dbeecd9d3e9cb14551ab265905 by Jon Cohen <cohenjon@google.com>:
Add default link options to absl builds.
Currently all this does is add -ignore:4221 to Abseil msvc builds, but the structure is all in place to add more link options when necessary
Fix#277
Note: This CL changes tact for us in that it puts the default options in the helper function as opposed to the invocations of absl_cc_blah. The original intent of keeping these out of the helper functions was to make generating the CMakeLists.txt files have a smaller diff, but looking now that is a problem for the future, and small compared to making maintenance and use of our CMake buildsystem easier
PiperOrigin-RevId: 240409463
--
4aa120e9dcf76d29e9ca0008d0f6d4d9fa8abe8c by Matt Kulukundis <kfm@google.com>:
Reduce flake rate for non-determistic test to < 1/10,000
PiperOrigin-RevId: 240370938
--
bc30e219531827bfbf90915b2067c7fb8160bb6d by Derek Mauro <dmauro@google.com>:
Add Bazel caching on Kokoro for new linux targets.
PiperOrigin-RevId: 240356556
--
c4e06d79a50d7bb211312b7845c4bd92c0761747 by Jon Cohen <cohenjon@google.com>:
include AbseilInstallDirs instead of GNUInstallDirs. It worked before because global_CMakeLists.txt also included AbseilInstallDirs
PiperOrigin-RevId: 240206409
--
c254dc6cade8a263f3f97fb1417d92fe5235ff32 by Jon Cohen <cohenjon@google.com>:
Fix logic for when we create the variant_exception_safety_test in CMake. Currently we are only running in on gcc > 4.9, when we want it run on every compiler except gcc <= 4.8
PiperOrigin-RevId: 240194174
--
01518006b351d3670ba1d349cfbcb7dd6f3a8b84 by CJ Johnson <johnsoncj@google.com>:
Removes old implementation warning comment now that InlinedVector has an implementation detail file
PiperOrigin-RevId: 240167265
--
eb05355ae8c7397752ab7a65afc9e0a99472ba9d by Jon Cohen <cohenjon@google.com>:
Remove the forward declaration of Span
PiperOrigin-RevId: 240156660
--
b7e75aa3933d6e79dd086821cf58d15e72f476f4 by Jon Cohen <cohenjon@google.com>:
Prepare CMake install rule for LTS releases:
* Remove the warning against installing in system install locations
* Insert versioning to keep different LTS installs from colliding. Headers are installed in <prefix>/absl_$version/include, .a files in <prefix>/absl_$version/lib, and config files in <prefix>/absl_$version/lib/cmake
PiperOrigin-RevId: 240153986
--
de63488ab6236e041f08260794b0b634a2b8ed16 by CJ Johnson <johnsoncj@google.com>:
Reduce reader confusion by using std::addressof(...) even when the type is known to not overload operator&(...)
PiperOrigin-RevId: 240131902
GitOrigin-RevId: f6c627ce4470a814adc377947b58346eef69a4c9
Change-Id: I95dbbacaaf65aceeeca9e9bee5fd9ea456225f62
clang-cl produce binaries with MSVC ABI and wants to be as flag-compatible with pure MSVC as possible, so this leads to all sorts of weird cases.
clang-cl alias /Wall as clang's -Weverything which is way too verbose, so it needs /W3 like pure MSVC.
clang-cl only understand GCC style warning flags (-W[no]blah) and just silent drop MSVC style warning flags (/wd[num]).
clang-cl needs MSVC define flags since it is consuming the same header files as pure MSVC.
CMake set CMAKE_CXX_COMPILER_ID as Clang when clang-cl is detected, so need extra if (MSVC) to differentiate it.
We are not doing clang-cl specialization in Bazel as currently there is no reliable way to detect clang-cl in Bazel..
This PR should be NFC for LLVM/GCC users on Unix platforms.
Other changes:
Add ABSL_ prefix to variable names to avoid name collision in CMake.
--
bdce7e57e9e886eff1114d0266781b443f7ec639 by Derek Mauro <dmauro@google.com>:
Change {Get|Set}EnvironmentVariable to {Get|Set}EnvironmentVariableA for
compatibility with /DUNICODE.
PiperOrigin-RevId: 239229514
--
2276ed502326a044a84060d34eb19d499e3a3be2 by Derek Mauro <dmauro@google.com>:
Import of CCTZ from GitHub.
PiperOrigin-RevId: 239228622
--
a462efb970ff43b08a362ef2343fb75ac1295a50 by Derek Mauro <dmauro@google.com>:
Adding linking of CoreFoundation to CMakeLists in absl/time.
Import https://github.com/abseil/abseil-cpp/pull/280.
Fix#283
PiperOrigin-RevId: 239220785
--
fc23327b97f940c682aae1956cf7a1bf87f88c06 by Derek Mauro <dmauro@google.com>:
Add hermetic test script that uses Docker to build with a very recent
version of gcc (8.3.0 today) with libstdc++ and bazel.
PiperOrigin-RevId: 239220448
--
418c08a8f6a53e63b84e39473035774417ca3aa7 by Derek Mauro <dmauro@google.com>:
Disable part of the variant exeception safety test on move assignment
when using versions of libstd++ that contain a bug.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87431#c7
PiperOrigin-RevId: 239062455
--
799722217aeda79679577843c91d5be62cbcbb42 by Matt Calabrese <calabrese@google.com>:
Add internal-only IsSwappable traits corresponding to std::is_swappable and std::is_nothrow_swappable, which are used with the swap implementations of optional and variant.
PiperOrigin-RevId: 239049448
--
aa46a036038a3de5c68ac5e5d3b4bf76f818d2ea by CJ Johnson <johnsoncj@google.com>:
Make InlinedVectorStorage constructor explicit
PiperOrigin-RevId: 239044361
--
17949715b3aa21c794701f69f2154e91b6acabc3 by CJ Johnson <johnsoncj@google.com>:
Add absl namesapce to internal/inlined_vector.h
PiperOrigin-RevId: 239030789
--
834628325953078cc08ed10d23bb8890e5bec897 by Derek Mauro <dmauro@google.com>:
Add test script that uses Docker to build Abseil with gcc-4.8,
libstdc++, and cmake.
PiperOrigin-RevId: 239028433
--
80fe24149ed73ed2ced995ad1e372fb060c60427 by CJ Johnson <johnsoncj@google.com>:
Factors data members of InlinedVector into an impl type called InlinedVectorStorage so that (in future changes) the contents of a vector can be grouped together with a single pointer.
PiperOrigin-RevId: 239021086
--
585331436d5d4d79f845e45dcf79d918a0dc6169 by Derek Mauro <dmauro@google.com>:
Add -Wno-missing-field-initializers to gcc compiler flags.
gcc-4.x has spurious missing field initializer warnings.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36750
PiperOrigin-RevId: 239017217
--
94602fe4e33ee3a552a7f2939c0f57a992f55075 by Abseil Team <absl-team@google.com>:
Formatting fixes.
PiperOrigin-RevId: 238983038
--
a1c1b63c08505574e0a8c491561840cecb2bb93e by Derek Mauro <dmauro@google.com>:
Add hermetic test script that uses Docker to build with a very recent
version of clang with libc++ and bazel.
PiperOrigin-RevId: 238669118
--
e525f8d20bc2f79a0d69336b902f63858f3bff9d by Derek Mauro <dmauro@google.com>:
Disable the test optionalTest.InPlaceTSFINAEBug until libc++ is updated.
PiperOrigin-RevId: 238661703
--
f99a2a0b5ec424a059678f7f226600f137b4c74e by Derek Mauro <dmauro@google.com>:
Correct the check for the FlatHashMap-Any test bug (list conditions
instead of platforms when possible)
PiperOrigin-RevId: 238653344
--
777928035dbcbf39f361eb7d10dc3696822f692f by Jon Cohen <cohenjon@google.com>:
Add install rules for Abseil CMake.
These are attempted to be limited to in-project installation. This serves two purposes -- first it's morally the same as using Abseil in-source, except you don't have to rebuild us every time. Second, the presence of an install rule makes life massively simpler for package manager maintainers.
Currently this doesn't install absl tests or testonly libraries. This can be added in a follow-up patch.
Fixes#38, Fixes#80, Closes#182
PiperOrigin-RevId: 238645836
--
ded1c6ce697c191b7a6ff14572b3e6d183117b2c by Derek Mauro <dmauro@google.com>:
Add hermetic test script that uses Docker to build with a very recent
version of clang with libstdc++ and bazel.
PiperOrigin-RevId: 238517815
GitOrigin-RevId: bdce7e57e9e886eff1114d0266781b443f7ec639
Change-Id: I6f745869cb8ef63851891ccac05ae9a7dd241c4f
--
3d20ce6cd6541579abecaba169d4b8716d511272 by Jon Cohen <cohenjon@google.com>:
Only use LSAN for clang version >= 3.5. This should fix https://github.com/abseil/abseil-cpp/issues/244
PiperOrigin-RevId: 234675129
--
e15bd4ec7a81aa95cc3d09fa1e0e81d58ae478fb by Conrad Parker <conradparker@google.com>:
Fix errors in apply() sample code
The following changes are made:
* Make the example method public.
* Give the two user functions different names to avoid confusion about
whether apply() can select the correct overload of a function based
on its tuple argument (it can't).
* Pass tuple2 to the second example apply() invocation, instead of
passing its contents individually.
* Fix a s/tuple/tuple3/ typo in the third example apply() invocation.
PiperOrigin-RevId: 234223407
--
de0ed71e21bc76ddf9fe715fdbaef74cd0df95c7 by Abseil Team <absl-team@google.com>:
First test if a macro is defined to avoid -Wundef.
ABSL clients may need to compile their code with the -Wundef warning
flag. It will be helpful if ABSL header files can be compiled without
the -Wundef warning.
How to avoid the -Wundef warning: If a macro may be undefined, we need
to first test whether the macro is defined before testing its value. We
can't rely on the C preprocessor rule that an undefined macro has the
value 0L.
PiperOrigin-RevId: 234201123
--
fa484ad7dae0cac21140a96662809ecb0ec8eb5d by Abseil Team <absl-team@google.com>:
Internal change.
PiperOrigin-RevId: 234185697
--
d69b1baef681e27954b065375ecf9c2320463b2b by Samuel Benzaquen <sbenza@google.com>:
Mix pointers more thoroughly.
Some pointer alignments interact badly with the mixing constant. By mixing twice we reduce this problem.
PiperOrigin-RevId: 234178401
--
1041d0e474610f3a8fea0db90958857327d6da1c by Samuel Benzaquen <sbenza@google.com>:
Record rehashes in the hashtablez struct.
Only recording the probe length on insertion causes a huge overestimation of
the total probe length at any given time.
With natural growth, elements are inserted when the load factor is between
(max load/2, max load). However, after a rehash the majority of elements are
actually inserted when the load factor is less than max/2 and have a much lower
average probe length.
Also reset some values when the table is cleared.
PiperOrigin-RevId: 234013580
--
299205caf3c89c47339f7409bc831746602cea84 by Mark Barolak <mbar@google.com>:
Fix a sample code snippet that assumes `absl::string_view::const_iterator` is `const char*`. This is generally true, however in C++17 builds, absl::string_view is an alias for std::string_view and on MSVC, the std::string_view::const_iterator is an object instead of just a pointer.
PiperOrigin-RevId: 233844595
--
af6c6370cf51a1e6c1469c79dfb2a486a4009136 by Abseil Team <absl-team@google.com>:
Internal change.
PiperOrigin-RevId: 233773470
--
6e59e4b8e2bb6101b448f0f32b0bea81fe399ccf by Abseil Team <absl-team@google.com>:
fix typo in {Starts|Ends}WithIgnoreCase comment in match.h
PiperOrigin-RevId: 233662951
GitOrigin-RevId: 3d20ce6cd6541579abecaba169d4b8716d511272
Change-Id: Ib9a29b1c38c6aedf5d9f3f7f00596e8d30e864dd
--
5f1cf6547231f1b1daad6d1b785df6b0b999b3c9 by Samuel Benzaquen <sbenza@google.com>:
Fix uninitialized member in the `iterator` class by using a union of the two
possible states of the iterator.
This silences a Wuninitialized warning in gcc>=7.
PiperOrigin-RevId: 228175148
--
98b4e3204c0ec3cfd4cb037e24d443ea4b63fc84 by CJ Johnson <johnsoncj@google.com>:
Factors out the implementation of InlinedVector::swap(...) into a private member function
PiperOrigin-RevId: 228173383
--
f1432ad3a8b05285c6d55bc4754cfae765485b7f by Abseil Team <absl-team@google.com>:
Import of CCTZ from GitHub.
PiperOrigin-RevId: 227891984
--
03fc00c7a4efc6000e6d9125cb2e252bffda76fe by Andy Getzendanner <durandal@google.com>:
Add a missing linebreak to a comment and markdownify two unordered lists.
PiperOrigin-RevId: 227861389
--
0d66c9afba4fc9aa52e61d9fb410e165018a7b48 by Abseil Team <absl-team@google.com>:
Add an API to register a new source for the cycle clock.
PiperOrigin-RevId: 227779218
--
14d3f9b70c8818b8541e5fb2f6ca4c59d479de31 by Andy Getzendanner <durandal@google.com>:
Correct a typo in a stripping marker.
PiperOrigin-RevId: 227750014
--
59df88740f4e315beb57a8772f8bcf7879440c74 by Matt Kulukundis <kfm@google.com>:
Switch thread local handling to be more cross platform
PiperOrigin-RevId: 227695133
--
75deed5bfcb5c42534e933f104aa7d94e11e348d by Abseil Team <absl-team@google.com>:
Rollback workaround toolchain bug for incorrect handling of thread_local in inline
functions
PiperOrigin-RevId: 227689133
--
54994bf0afec026e6e0e7a199df0bbb4b7d9a4aa by Derek Mauro <dmauro@google.com>:
Add -pthread to linkopts where it actually belongs, on the library
that uses it.
Fixes https://github.com/abseil/abseil-cpp/issues/240.
PiperOrigin-RevId: 227612492
--
893875f3536b7e0a1bad993aa6b2e083abb3b25a by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 227582833
--
506c9b8e9002ca3389c7040473b68d4cbf94bdcc by Matt Kulukundis <kfm@google.com>:
Workaround toolchain bug for incorrect handling of thread_local in inline
functions
PiperOrigin-RevId: 227561449
--
29ee90d96dfe3114cf93f9bb92ea0cc9e768a407 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 227054634
GitOrigin-RevId: 5f1cf6547231f1b1daad6d1b785df6b0b999b3c9
Change-Id: Ibc90566d92ee6e0ad7e150f513ec7f5d22ec0a94
--
a2adbf75201f6b7feba929f77dfc4f87f9c1110b by Abseil Team <absl-team@google.com>:
This change allows for capturing the address of the mutex from which a call to `Block(...)` could be introducing latency. The attribute is a no-op if the application is not being built with XRay instrumentation.
See http://llvm.org/docs/XRay.html for more information about XRay.
PiperOrigin-RevId: 225752598
--
6bc7f25573ddc6711f484dfacab9459f45e0bf42 by Abseil Team <absl-team@google.com>:
Update absl/utility/CMakeLists.txt to use new functions
i.e. absl_cc_(library|test)
PiperOrigin-RevId: 225651883
--
4acde5e72032f31a26a1ffa53a28f35dbb0bd7d3 by Abseil Team <absl-team@google.com>:
Update absl/types/CMakeLists.txt to use new functions
i.e. absl_cc_(library|test)
PiperOrigin-RevId: 225584788
--
fe2c740d64b17cece25eee4e5d2196a7c059d3e9 by Abseil Team <absl-team@google.com>:
Update auto-generated build options files.
PiperOrigin-RevId: 225557283
--
cd779dddceeee191ee82deb6b9030c4db288e758 by Jon Cohen <cohenjon@google.com>:
Internal change.
PiperOrigin-RevId: 225556657
--
3d56dd132d845930c3fb520a39ee77ecb2430bd2 by Matt Kulukundis <kfm@google.com>:
Internal cleanup
PiperOrigin-RevId: 225488946
GitOrigin-RevId: a2adbf75201f6b7feba929f77dfc4f87f9c1110b
Change-Id: I1b2178e053bdebc8cf3dcb017b0e247619b81a0c
--
e7f892a0b9b313b434c5f9e9a2365b377204b60e by Abseil Team <absl-team@google.com>:
Remove internal CaseEqual helper now that we have the equivalent absl::EqualsIgnoreCase.
PiperOrigin-RevId: 225189084
--
722af2c74766d2fe3cee13c8dc886d39aedda597 by Abseil Team <absl-team@google.com>:
Add -Wno-extra-semi-stmt to silence that warning.
The [-Wno-extra-semi] is already disabled in the build. This
change will allow the build to remain consistent across newer
versions of clang which are now issuing a new similiar warning
[-Wextra-semi-stmt]:
https://clang.llvm.org/docs/ReleaseNotes.html#major-new-featureshttps://clang.llvm.org/docs/DiagnosticsReference.html#wextra-semi-stmt
PiperOrigin-RevId: 225185101
--
f7fd6244b4efcf0331631a54b7b0cf5f1f691a89 by CJ Johnson <johnsoncj@google.com>:
Move using directive in swap implementation
PiperOrigin-RevId: 225017825
--
3005841725df5b9cdb35c8a5319bb4c78b5dc2b7 by Abseil Team <absl-team@google.com>:
Update absl/strings/CMakeLists.txt to use new functions
i.e. absl_cc_(library|test)
PiperOrigin-RevId: 224860689
--
eeaf7099924b182472bfea3636ef6d9a39adfc50 by CJ Johnson <johnsoncj@google.com>:
Prefer public method over private for InlinedVector allocator access
PiperOrigin-RevId: 224825775
--
db9d218e3ca7ab400eef97778b720cb082a03281 by Eric Fiselier <ericwf@google.com>:
Take advantage of secret libc++ resize uninitialized function in string.
PiperOrigin-RevId: 224817877
GitOrigin-RevId: e7f892a0b9b313b434c5f9e9a2365b377204b60e
Change-Id: I051beee37ee03f0570bd2e068355ad75c8bdfcf8
--
1a5fb4eb5bc6c0332962f659470a07908168aa5c by CJ Johnson <johnsoncj@google.com>:
Move InlinedVector's AbslHashValue(...) definition to out of line
PiperOrigin-RevId: 224389234
--
b7c5ccdfe17b9cb5f7124c8d591ce0989a15b9fb by Jon Cohen <cohenjon@google.com>:
Add a shebang line and chmod +x generate_copts.py. Note that we use the "python" command as suggested in PEP 934 (https://www.python.org/dev/peps/pep-0394/) as this script should work in both Python 2 and Python 3.
Also adds a gitignore for __pycache__ for when using python3
PiperOrigin-RevId: 224375405
--
c57a148a1106b21dbcd750541f10b058bf55a2bf by CJ Johnson <johnsoncj@google.com>:
Adds comment to InlinedVector intended to help the g4 diffing algo to better identify the substantive change
PiperOrigin-RevId: 224362807
--
b635ab981a07dc2434be7b0d164030a42cc67923 by Greg Falcon <gfalcon@google.com>:
internal change
PiperOrigin-RevId: 224362442
--
217021f7dcec31141a89b91930c241af062c2133 by CJ Johnson <johnsoncj@google.com>:
Distinguishes the source of InlinedVector::at(...)'s bounds checking exception
PiperOrigin-RevId: 224341645
--
01a5943560ce9216a9d8ccb1279b5c5c2f6e1019 by CJ Johnson <johnsoncj@google.com>:
Relocates out of line member function definitions to their respective declarations in InlinedVector
PiperOrigin-RevId: 224320130
--
b3d57fcddcd737e91aab812d69b82fef2ca43d7e by Abseil Team <absl-team@google.com>:
On 32-bit systems, the alignment of int64 can be 4 bytes. Created a custom Int64 type (to go with the custom Int128 type) just for the purpose of testing layouts and alignments; it doesn't need to support actual arithmetic.
PiperOrigin-RevId: 224209785
GitOrigin-RevId: 1a5fb4eb5bc6c0332962f659470a07908168aa5c
Change-Id: I9d6b1c441cd712709ebd6c0a8911d0755cab506f
--
22fa219d17b2281c0695642830c4300711bd65ea by CJ Johnson <johnsoncj@google.com>:
Rearrange the private method declarations in InlinedVector
PiperOrigin-RevId: 224202447
--
eed3c9f488f23b521bee41d3683eb6cc22517ded by Derek Mauro <dmauro@google.com>:
Fix leak_check target (it was always a no-op when LSAN isn't available).
Fixes https://github.com/abseil/abseil-cpp/issues/232
PiperOrigin-RevId: 224201634
--
fc08039e175204b14a9561f618fcfc0234586801 by Greg Falcon <gfalcon@google.com>:
Add parens around more invocations of min() and max() missed in my prior CL.
PiperOrigin-RevId: 224162430
--
0ec5476a8293c7796cd84928a1a558b14f14f222 by Abseil Team <absl-team@google.com>:
Update absl/numeric/CMakeLists.txt to use new functions
i.e. absl_cc_(library|test)
PiperOrigin-RevId: 224139165
--
2b46aa6fabb20c589661f8bbc84030ecf39ce394 by Abseil Team <absl-team@google.com>:
Update absl/meta/CMakeLists.txt to use new functions
i.e. absl_cc_(library|test)
PiperOrigin-RevId: 224117258
--
6c951c798f8c6903bd8793a8a4b5f69244be8aa9 by Abseil Team <absl-team@google.com>:
Fix 2 Unused C++ BUILD Dependencies
PiperOrigin-RevId: 224070093
--
0ee7bd191708708f91fc5209c197fd93f6e4a8b3 by Greg Falcon <gfalcon@google.com>:
Inside Abseil headers, wrap most invocations of methods and functions named `min` and `max` in parentheses, for better interoperability with Windows toolchains.
CCTZ fixes will appear in a follow-up CL.
PiperOrigin-RevId: 224051960
--
f562f56577b84a8bc07e5873775c01d068531bca by Jon Cohen <cohenjon@google.com>:
Generate Abseil compile options. The single source of truth is now absl/copts/copts.py
The way this works goes something like this:
copts.py acts as the configuration file. We use python because unlike JSON it allows comments. It has two maps in it: one from names to external flags, and one from names to internal flags.
generate_copts.py imports the maps and loops through them to write GENERATED_copts.bzl and GENERATED_AbseilCopts.cmake
AbseilConfigureCopts.cmake and configure_copts.bzl import their respective copts args and set the platform-appropriate copts into ABSL_DEFAULT_COPTS, ABSL_TEST_COPTS, ABSL_EXCEPTIONS_FLAG, and ABSL_EXCEPTIONS_LINKOPTS
For Bazel, each BUILD file load()s configure_copts.bzl
For CMake, AbseilHelpers.cmake include()s AbseilConfigureCopts.cmake to get the final copts and both inserts them as needed into legacy target rules and also makes them available to the rest of our CMakeLists.txt file. We may instead want to include() AbseilConfigureCopts.cmake directly into each CMakeLists.txt file for consistency, but I'm not sure what the deal is with cmake and include guards, or if they are even needed. That's also not as idiomatic -- CMake tends to use directory scope where globals set at a higher level CMakeLists.txt file are used in the subdirectory CMakeLists.txt files.
PiperOrigin-RevId: 224039419
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f7402f6bb65037e668a7355f0a003f5c05a3b6a7 by Abseil Team <absl-team@google.com>:
Import of CCTZ from GitHub.
PiperOrigin-RevId: 224036622
GitOrigin-RevId: 22fa219d17b2281c0695642830c4300711bd65ea
Change-Id: I6b505360539ff2aef8aa30c51a5f7d55db1c75cf
Abseil Team
Loo Rong Jie