Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/clang-tools-extra/docs/clang-tidy/checks/objc-property-declaration.rst

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+.. title:: clang-tidy - objc-property-declaration
+
+objc-property-declaration
+=========================
+
+Finds property declarations in Objective-C files that do not follow the pattern
+of property names in Apple's programming guide. The property name should be
+in the format of Lower Camel Case.
+
+For code:
+
+.. code-block:: objc
+
+@property(nonatomic, assign) int LowerCamelCase;
+
+The fix will be:
+
+.. code-block:: objc
+
+@property(nonatomic, assign) int lowerCamelCase;
+
+The check will only fix 'CamelCase' to 'camelCase'. In some other cases we will
+only provide warning messages since the property name could be complicated.
+Users will need to come up with a proper name by their own.
+
+This check also accepts special acronyms as prefix. Such prefix will suppress
+the check of Lower Camel Case according to the guide:
+https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/CodingGuidelines/Articles/NamingBasics.html#//apple_ref/doc/uid/20001281-1002931-BBCFHEAB
+
+For a full list of well-known acronyms:
+https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/CodingGuidelines/Articles/APIAbbreviations.html#//apple_ref/doc/uid/20001285-BCIHCGAE
+
+The corresponding style rule: https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/CodingGuidelines/Articles/NamingIvarsAndTypes.html#//apple_ref/doc/uid/20001284-1001757
+
+Options
+-------
+
+.. option:: Acronyms
+
+   Semicolon-separated list of acronyms that can be used as prefix
+   of property names.
+
+   Defaults to `ASCII;PDF;XML;HTML;URL;RTF;HTTP;TIFF;JPG;PNG;GIF;LZW;ROM;RGB;CMYK;MIDI;FTP`.