llvm-project/clang
Félix Cloutier 12ab3e6c84 format_arg attribute does not support nullable instancetype return type
* The format_arg attribute tells the compiler that the attributed function
  returns a format string that is compatible with a format string that is being
  passed as a specific argument.
* Several NSString methods return copies of their input, so they would ideally
  have the format_arg attribute. A previous differential (D112670) added
  support for instancetype methods having the format_arg attribute when used
  in the context of NSString method declarations.
* D112670 failed to account that instancetype can be sugared in certain narrow
  (but critical) scenarios, like by using nullability specifiers. This patch
  resolves this problem.

Differential Revision: https://reviews.llvm.org/D113636
Reviewed By: ahatanak

Radar-Id: rdar://85278860
2021-11-12 13:35:43 -08:00
..
INPUTS
bindings Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
cmake [Fuchsia][CMake] Don't set libcxxabi and libunwind variables on Windows 2021-11-11 19:29:39 -08:00
docs Making the code compliant to the documentation about Floating Point 2021-11-11 07:40:35 -05:00
examples [clang-repl] Remove redundant link libraries and drop unused file. 2021-10-27 10:13:30 +00:00
include Comment Sema: Make most of CommentSema private (NFC) 2021-11-12 21:11:52 +01:00
lib format_arg attribute does not support nullable instancetype return type 2021-11-12 13:35:43 -08:00
runtime Prepare Compiler-RT for GnuInstallDirs, matching libcxx, document all 2021-07-13 15:21:41 +00:00
test format_arg attribute does not support nullable instancetype return type 2021-11-12 13:35:43 -08:00
tools Initial parsing/sema for 'align' clause 2021-11-09 07:34:18 -05:00
unittests [AIX][NFC] Disable clang-repl tests failing due to lack of 64-bit XCOFF support. 2021-11-11 14:10:42 -05:00
utils [clang-tblgen] Fix non-determinism in generating AttributeReference.rst 2021-11-10 10:08:07 +07:00
www [NFC] Inclusive language: Remove instances of master in URLs 2021-11-05 08:48:41 -05:00
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [CMake] Fix typo in error message for LLD in bootstrap builds. 2021-10-06 22:38:12 +05:30
CODE_OWNERS.TXT Add myself as a code owner for SYCL support 2021-09-20 09:32:25 +03:00
INSTALL.txt
LICENSE.TXT
ModuleInfo.txt
NOTES.txt
README.txt

README.txt

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source-level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:             http://clang.llvm.org/
Building and using Clang:         http://clang.llvm.org/get_started.html
Clang Static Analyzer:            http://clang-analyzer.llvm.org/
Information on the LLVM project:  http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang development mailing list:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/