Written by the LLVM Team
Warning
These are in-progress notes for the upcoming Extra Clang Tools 6 release. Release notes for previous releases can be found on the Download Page.
This document contains the release notes for the Extra Clang Tools, part of the Clang release 6.0.0. Here we describe the status of the Extra Clang Tools in some detail, including major improvements from the previous release and new feature work. All LLVM releases may be downloaded from the LLVM releases web site.
For more information about Clang or LLVM, including information about the latest release, please see the Clang Web Site or the LLVM Web Site.
Note that if you are reading this file from a Subversion checkout or the main Clang web page, this document applies to the next release, not the current one. To see the release notes for a specific release, please see the releases page.
Some of the major new features and improvements to Extra Clang Tools are listed here. Generic improvements to Extra Clang Tools as a whole or to its underlying infrastructure are described first, followed by tool-specific sections.
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The improvements are...
The improvements are...
New objc-property-declaration check
Add new check for Objective-C code to ensure property names follow the naming convention of Apple's programming guide.
New google-objc-global-variable-declaration check
Add new check for Objective-C code to ensure global variables follow the naming convention of 'k[A-Z].' (for constants) or 'g[A-Z].' (for variables).
- New module objc for Objective-C style checks.
New objc-forbidden-subclassing check
Ensures Objective-C classes do not subclass any classes which are not intended to be subclassed. Includes a list of classes from Foundation and UIKit which are documented as not supporting subclassing.
Renamed checks to use correct term "implicit conversion" instead of "implicit cast" and modified messages and option names accordingly:
- performance-implicit-cast-in-loop was renamed to performance-implicit-conversion-in-loop
- readability-implicit-bool-cast was renamed to readability-implicit-bool-conversion; the check's options were renamed as follows:
AllowConditionalIntegerCasts
->AllowIntegerConditions
,AllowConditionalPointerCasts
->AllowPointerConditions
.
New android-cloexec-accept check
Detects usage of
accept()
.New android-cloexec-accept4 check
Checks if the required file flag
SOCK_CLOEXEC
is present in the argument ofaccept4()
.New android-cloexec-dup check
Detects usage of
dup()
.New android-cloexec-inotify-init check
Detects usage of
inotify_init()
.New android-cloexec-epoll-create1 check
Checks if the required file flag
EPOLL_CLOEXEC
is present in the argument ofepoll_create1()
.New android-cloexec-epoll-create check
Detects usage of
epoll_create()
.New android-cloexec-memfd_create check
Checks if the required file flag
MFD_CLOEXEC
is present in the argument ofmemfd_create()
.New bugprone-integer-division check
Finds cases where integer division in a floating point context is likely to cause unintended loss of precision.
New cppcoreguidelines-owning-memory check
This check implements the type-based semantic of
gsl::owner<T*>
, but without flow analysis.New hicpp-exception-baseclass check
Ensures that all exception will be instances of
std::exception
and classes that are derived from it.New hicpp-signed-bitwise check
Finds uses of bitwise operations on signed integer types, which may lead to undefined or implementation defined behaviour.
New android-cloexec-inotify-init1 check
Checks if the required file flag
IN_CLOEXEC
is present in the argument ofinotify_init1()
.New readability-static-accessed-through-instance check
Finds member expressions that access static members through instances and replaces them with uses of the appropriate qualified-id.
- Added modernize-use-emplace.IgnoreImplicitConstructors option.
- Added aliases for the High Integrity C++ Coding Standard to already implemented checks in other modules.
The improvements are...
The improvements are...