27 Commits

Author SHA1 Message Date
Stephan T. Lavavej
f5832bab6f
[libc++][test] Cleanup typos and unnecessary semicolons (#73435)
I've structured this into a series of commits for even easier reviewing,
if that helps. I could easily split this up into separate PRs if
desired, but as this is low-risk with simple edits, I thought one PR
would be easiest.

* Drop unnecessary semicolons after function definitions.
* Cleanup comment typos.
* Cleanup `static_assert` typos.
* Cleanup test code typos.
+ There should be no functional changes, assuming I've changed all
occurrences.
* ~~Fix massive test code typos.~~
+ This was a real problem, but needed more surgery. I reverted those
changes here, and @philnik777 is fixing this properly with #73444.
* clang-formatting as requested by the CI.
2023-11-27 02:11:24 +01:00
Nikolas Klauser
e30a148b09 [libc++] Remove generic char_traits implementation
This has been deprecated and should be removed now.

Reviewed By: #libc, Mordante

Spies: Mordante, libcxx-commits

Differential Revision: https://reviews.llvm.org/D157058
2023-08-09 15:55:28 -07:00
Louis Dionne
60a6a0d17a [libc++] Add missing includes
Those were found while trying to enable configurations like no-threads
and no-localization with Clang modules enabled.

Differential Revision: https://reviews.llvm.org/D153977
2023-07-03 09:40:09 -04:00
Louis Dionne
c352fa7407 [libc++] Expand the contents of LIBCXX_ENABLE_FILESYSTEM
Since LIBCXX_ENABLE_FILESYSTEM now truly represents whether the
platform supports a filesystem (as opposed to whether the <filesystem>
library is provided), we can provide a few additional classes from
the <filesystem> library even when the platform does not have support
for a filesystem. For example, this allows performing path manipulations
using std::filesystem::path even on platforms where there is no actual
filesystem.

rdar://107061236

Differential Revision: https://reviews.llvm.org/D152382
2023-06-27 09:18:40 -04:00
Mark de Wever
48abcf11ad [libc++][format] Adds formattable-with concept.
This change has a few additional effects:
- Abstract classes are now formattable.
- Volatile objects are no longer formattable.

Implements
- LWG3631 basic_format_arg(T&&) should use remove_cvref_t<T> throughout
- LWG3925 Concept formattable's definition is incorrect

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D152092
2023-06-21 08:05:33 +02:00
Louis Dionne
66a562d22e [libc++] Roll up fstream support into filesystem support
LIBCXX_ENABLE_FILESYSTEM should represent whether the platform has
support for a filesystem, not just whether we support <filesystem>.
This patch slightly generalizes the setting to also encompass whether
we provide <fstream>, since that only makes sense when a filesystem is
supported.

Differential Revision: https://reviews.llvm.org/D152168
2023-06-07 08:04:58 -07:00
Mark de Wever
dff62f5251 [libc++][format] Removes the experimental status.
The code has been quite ready for a while now and there are no more ABI
breaking papers. So this is a good time to mark the feature as stable.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D150802
2023-05-24 17:16:22 +02:00
Mark de Wever
bc2cf42015 [libc++][chrono] Adds formatter local_time.
Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D149457
2023-05-03 18:36:29 +02:00
Mark de Wever
96f303324f [libc++][chrono] Adds formatter file_time.
Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D148928
2023-04-27 17:12:59 +02:00
Mark de Wever
88622aabf1 [libc++][format] Implements formatter thread::id.
Since stacktrace header is WIP and it's not sure that will be done
before LLVM17 update the documentation. When the header is implemented
implementing the formatter is trivial, so that can be done quickly
afterwards.

Implements parts of:
 - P2693R1 Formatting thread::id and stacktrace

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D144331
2023-04-08 16:39:34 +02:00
Mark de Wever
2c1d79596f [libc++][chrono] Add sys_time formatter.
Partially implements:
- P1361 Integration of chrono with text formatting
- P2372 Fixing locale handling in chrono formatters

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D144739
2023-04-08 15:22:50 +02:00
Louis Dionne
f0fc8c4878 [libc++] Use named Lit features to flag back-deployment XFAILs
Instead of writing something like `XFAIL: use_system_cxx_lib && target=...`
to XFAIL back-deployment tests, introduce named Lit features like
`availability-shared_mutex-missing` to represent those. This makes the
XFAIL annotations leaner, and solves the problem of XFAIL comments
potentially getting out of sync. This would also make it easier for
another vendor to add their own annotations to the test suite by simply
changing how the feature is defined for their OS releases, instead
of having to modify hundreds of tests to add repetitive annotations.

This doesn't touch *all* annotations -- only annotations that were widely
duplicated are given named features (e.g. when filesystem or shared_mutex
were introduced). I still think it probably doesn't make sense to have a
named feature for every single fix we make to the dylib.

This is in essence a revert of 2659663, but since then the test suite
has changed significantly. Back when I did 2659663, the configuration
files we have for the test suite right now were being bootstrapped and
it wasn't clear how to provide these features for back-deployment in
that context. Since then, we have a streamlined way of defining these
features in `features.py` and that doesn't impact the ability for a
configuration file to stay minimal.

The original motivation for this change was that I am about to propose
a change that would touch essentially all XFAIL annotations for back-deployment
in the test suite, and this greatly reduces the number of lines changed
by that upcoming change, in addition to making the test suite generally
better.

Differential Revision: https://reviews.llvm.org/D146359
2023-03-27 12:44:26 -04:00
Louis Dionne
3d334df587 [libc++] Remove availability markup for std::format
std::format is currently experimental, so there is technically no
deployment target requirement for it (since the only symbols required
for it are in `libc++experimental.a`).

However, some parts of std::format depend indirectly on the floating
point std::to_chars implementation, which does have deployment target
requirements.

This patch removes all the availability format for std::format and
updates the XFAILs in the tests to properly explain why they fail
on old deployment targets, when they do. It also changes a couple
of tests to avoid depending on floating-point std::to_chars when
it isn't fundamental to the test.

Finally, some tests are marked as XFAIL but I added a comment saying

   TODO FMT This test should not require std::to_chars(floating-point)

These tests do not fundamentally depend on floating-point std::to_chars,
however they end up failing because calling std::format even without a
floating-point argument to format will end up requiring floating-point
std::to_chars. I believe this is an implementation artifact that could
be avoided in all cases where we know the format string at compile-time.
In the tests, I added the TODO comment only to the places where we could
do better and actually avoid relying on floating-point std::to_chars
because we know the format string at compile-time.

Differential Revision: https://reviews.llvm.org/D134598
2023-03-22 16:32:26 -04:00
Mark de Wever
7e4639d28f [libc++][format] Fixes formatting vector<bool>
Formatting a const qualified vector<bool> fails to work on libc++. This
is due to our non-conforming type for vector<bool>::const_reference. The
type is a __bit_const_reference<vector> instead of a bool. (This is
fixed in ABI v2.)

This fixes this formatter and enables the test written for it.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D144279
2023-03-04 13:59:49 +01:00
Mark de Wever
7f5d130a42 [libc++][chrono] Add hh_mm_ss formatter.
Partially implements:
- P1361 Integration of chrono with text formatting
- P2372 Fixing locale handling in chrono formatters
- P1466 Miscellaneous minor fixes for chrono

Depends on D137022

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D139771
2023-02-14 19:12:19 +01:00
Mark de Wever
857cbb9276 [libc++][format] range-default-formatter for set.
Implements the range-default-formatter specialization range_format::set.

Implements parts of
- P2286R8 Formatting Ranges
- P2585R0 Improving default container formatting

Depends on D140801

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D141195
2023-01-20 17:39:59 +01:00
Mark de Wever
af5fc4b4d8 [libc++][format] range-default-formatter for map
Implements the range-default-formatter specialization range_format::map.

Implements parts of
- P2286R8 Formatting Ranges
- P2585R0 Improving default container formatting

Depends on D140653

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D140801
2023-01-19 20:55:52 +01:00
Mark de Wever
a09b1dc1f2 [libc++][format] Adds formatter std::vector<bool>.
Implements parts of
- P2286R8 Formatting Ranges

Depends on D140653

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D141761
2023-01-19 17:58:05 +01:00
Mark de Wever
04d4f4b3d4 [libc++][format] Adds container adaptor formatters.
Implements parts of
- P2286R8 Formatting Ranges

Depends on D140653

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D141290
2023-01-19 17:50:16 +01:00
Mark de Wever
22e8525dfd [libc++][format] Implements range_formatter
Implements parts of
- P2286R8 Formatting Ranges
- P2585R0 Improving default container formatting

Depends on D140651

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D140653
2023-01-19 17:20:05 +01:00
Mark de Wever
105fef5dca [libc++][chrono] Add calendar type formatters.
Some of the calendar types have landed before, this adds the missing
set. Note this does not complete the implementation of the chrono
formatters.

This removes the `chrono` header for some transitive include in C++17
mode. This is needed to avoid inclusion cycles.

Partially implements:
- P1361 Integration of chrono with text formatting
- P2372 Fixing locale handling in chrono formatters

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D137022
2022-12-24 15:11:41 +01:00
Mark de Wever
eb6e13cb32 [libc++][format] Adds formatter for tuple and pair
Implements parts of
- P2286R8 Formatting Ranges

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D136775
2022-12-22 19:36:28 +01:00
Mark de Wever
d184958bad [libc++][format] Adds range-default-formatter.
This adds an incomplete version where the specializations for the
format_kinds are disabled dummy formatters.

Implements part of
- P2585R0 Improving default container formatting

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D137271
2022-12-07 17:32:55 +01:00
Louis Dionne
08a0faf4cd [libc++] Keep char_traits<T> for arbitrary T around until LLVM 18
This is in response to failures seen after landing D138307.

Differential Revision: https://reviews.llvm.org/D138596
2022-11-24 08:22:39 -05:00
Mark de Wever
566868cd82 [libc++][chrono] Implements formatter weekday.
Partially implements:
- P1361 Integration of chrono with text formatting
- P2372 Fixing locale handling in chrono formatters

Depends on D134742

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D136037
2022-10-18 20:40:06 +02:00
Mark de Wever
719c3dc6f2 [libc++][chrono] Implements formatter duration.
Partially implements:
- P1361 Integration of chrono with text formatting
- P2372 Fixing locale handling in chrono formatters
- LWG3270 Parsing and formatting %j with durations

Completes:
- P1650R0 std::chrono::days with 'd' suffix
- LWG3262 Formatting of negative durations is not specified
- LWG3314 Is stream insertion behavior locale dependent when Period::type is micro?

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D134742
2022-10-18 20:39:39 +02:00
Mark de Wever
a1beb0a382 [libc++][format] Implements formattable concept.
This concept is introduced in P2286, but was implemented in libc++
before. This implementation was used in the library internally. This
implementation lacked the resolution of LWG3636. The original formatter
had a non-const member function that wasn't trivial to make a const
member. The recent parser improvements made this member a const member
in preparation of LWG3636.

Note LWG3636 isn't voted in. Its status is Ready. P2286's concept has
been written as-if LWG3636 is accepted and refers to that LWG issue.

Updates some tests make format a const member function and removes a
tests that's mainly a duplicate of the formattable concept test.

Implements
- LWG3636 formatter<T>::format should be const-qualified

Implements parts of
- P2286R8 Formatting Ranges

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D134110
2022-10-05 22:21:00 +02:00