Commit Graph

8 Commits

Author SHA1 Message Date
Roman Lebedev eb6d821cda [clang-tidy] readability-function-size: fix nesting level calculation
Summary:
A followup for D32942.

Malcolm Parsons has provided a valid testcase that the initial version of the check complained about nested `if`'s.
As it turns out, the culprit is the **partially** un-intentional `switch` fallthrough.
So rewrite the NestingThreshold logic without ab-using+mis-using that switch with fallthrough, and add testcases with nested `if`' where there should be a warning and shouldn't be a warning. This results in a cleaner, simpler code, too.

I guess, now it would be actually possible to pick some reasonable default for `NestingThreshold` setting.

Fixes PR33454.

Reviewers: malcolm.parsons, alexfh

Reviewed By: malcolm.parsons

Subscribers: sbenza, xazax.hun, cfe-commits, aaron.ballman

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34202

llvm-svn: 305554
2017-06-16 13:07:47 +00:00
Roman Lebedev a1cee29608 [clang-tidy] readability-function-size: add NestingThreshold param.
Summary:
Finds compound statements which create next nesting level after `NestingThreshold` and emits a warning.
Do note that it warns about each compound statement that breaches the threshold, but not any of it's sub-statements, to have readable warnings.

I was able to find only one coding style referencing nesting:
  - https://www.kernel.org/doc/html/v4.10/process/coding-style.html#indentation
     > In short, 8-char indents make things easier to read, and have the added benefit of warning you when you’re nesting your functions too deep.

This seems too basic, i'm not sure what else to test. Are more tests needed?

Reviewers: alexfh, aaron.ballman, sbenza

Reviewed By: alexfh, aaron.ballman

Subscribers: xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D32942

llvm-svn: 305082
2017-06-09 14:22:10 +00:00
Alexander Kornienko 9108644dbf [clang-tidy] Add parametercount for readibility-function-size
Summary:
Add an option to function-size to warn about high parameter counts.

This might be relevant for cppcoreguidelines and the safety module as well. Since the safety module is not landed in master already, i did not create an alias, but that can be done later as well.

Reviewers: sbenza, alexfh, hokein

Reviewed By: alexfh, hokein

Subscribers: JDevlieghere

Patch by Jonas Toth!

Differential Revision: https://reviews.llvm.org/D29561

llvm-svn: 296599
2017-03-01 10:17:32 +00:00
Manuel Klimek 8f9e444061 Switch check_clang_tidy to argparse and add a -resource-dir argument.
-resource-dir can be used to inject non-standard resource dirs via the
lit site config.

llvm-svn: 251021
2015-10-22 14:54:50 +00:00
Manuel Klimek b91bee06de Add %check_clang_tidy and %clang_tidy_diff.
With this, site specific lit configs can inject parameters into the
test scripts if they need site specific parameters.

Next up: enable check_clang_tidy to take a resource dir to enable
non-standard locations for builtin includes.

llvm-svn: 251010
2015-10-22 11:31:44 +00:00
Alexander Kornienko 43556bb7f0 [clang-tidy] Use a python script instead of a shell script to run clang-tidy tests.
Summary:
Add check_clang_tidy.py script that is functionally identical to the
check_clang_tidy.py, but should also be functional on windows.

I've verified that the script works on linux. Would be nice if folks using
Windows could test the patch before I break windows bots ;)

Reviewers: chapuni, aaron.ballman

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D12180

llvm-svn: 245583
2015-08-20 17:58:07 +00:00
Alexander Kornienko 106c8e0898 [clang-tidy] check_clang_tidy_fix.sh -> check_clang_tidy.sh
Summary: Make the script suitable for checking just messages. Move most of the tests to use it. Clean up the tests: shorten messages, insert line numbers, remove unnecessary RUN: lines, etc.

Reviewers: klimek

Reviewed By: klimek

Subscribers: curdeius, cfe-commits

Differential Revision: http://reviews.llvm.org/D5989

llvm-svn: 220634
2014-10-26 02:58:07 +00:00
Alexander Kornienko 2192a8e519 [clang-tidy] Bring order to check registration.
Summary:
Register readability checks in a separate module. Renamed the checks
and test file names accordingly.

Reviewers: djasper, klimek

Reviewed By: klimek

Subscribers: curdeius, cfe-commits

Differential Revision: http://reviews.llvm.org/D5936

llvm-svn: 220631
2014-10-26 01:41:14 +00:00