5f70c473c9
Summary: In contrast to Google C++, Objective-C often uses built-in integer types other than `int`. In fact, the Objective-C runtime itself defines the types NSInteger¹ and NSUInteger² which are variant types depending on the target architecture. The Objective-C style guide indicates that usage of system types with variant sizes is appropriate when handling values provided by system interfaces³. Objective-C++ is commonly the result of conversion from Objective-C to Objective-C++ for the purpose of integrating C++ functionality. The opposite of Objective-C++ being used to expose Objective-C functionality to C++ is less common, potentially because Objective-C has a signficantly more uneven presence on different platforms compared to C++. This generally predisposes Objective-C++ to commonly being more Objective-C than C++. Forcing Objective-C++ developers to perform conversions between variant system types and fixed size integer types depending on target architecture when Objective-C++ commonly uses variant system types from Objective-C is likely to lead to more bugs and overhead than benefit. For that reason, this change proposes to disable google-runtime-int in Objective-C++. [1] https://developer.apple.com/documentation/objectivec/nsinteger?language=objc [2] https://developer.apple.com/documentation/objectivec/nsuinteger?language=objc [3] "Types long, NSInteger, NSUInteger, and CGFloat vary in size between 32- and 64-bit builds. Use of these types is appropriate when handling values exposed by system interfaces, but they should be avoided for most other computations." https://github.com/google/styleguide/blob/gh-pages/objcguide.md#types-with-inconsistent-sizes Subscribers: xazax.hun, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D59336 llvm-svn: 356627 |
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| .. | ||
| _static | ||
| _templates | ||
| clang-tidy | ||
| clangd | ||
| CMakeLists.txt | ||
| ModularizeUsage.rst | ||
| README.txt | ||
| ReleaseNotes.rst | ||
| clang-doc.rst | ||
| clang-modernize.rst | ||
| clang-rename.rst | ||
| clang-tidy.rst | ||
| clangd.rst | ||
| conf.py | ||
| cpp11-migrate.rst | ||
| doxygen-mainpage.dox | ||
| doxygen.cfg.in | ||
| include-fixer.rst | ||
| index.rst | ||
| make.bat | ||
| modularize.rst | ||
| pp-trace.rst | ||
README.txt
---------------------------------- Documentation in clang-tools-extra ---------------------------------- To generate documentation in HTML format from files in clang-tools-extra/docs, build the docs-clang-tools-html target. To generate documentation from the source code using Doxygen, build the doxygen-clang-tools target.