5e28fca09c
This part of the implementation covers property nullability attributes and includes the changes to common code. Follow-on changes will be needed to cover Objective-C method definitions, but those are expected to be local to the Objective-C front end. The basis of the implementation is to translate the Objective-C-specific keywords into an attribute (objc_nullability) which has the required states to carry the attribute markup. We introduce the keywords, and these are parsed and validated in the same manner as other property attributes. The resulting value is attached to the property as an objc_nullability attribute. gcc/c-family/ChangeLog: PR objc/90707 * c-common.c (c_common_reswords): null_unspecified, nullable, nonnull, null_resettable: New keywords. * c-common.h (enum rid): RID_NULL_UNSPECIFIED, RID_NULLABLE, RID_NONNULL, RID_NULL_RESETTABLE: New. (OBJC_IS_PATTR_KEYWORD): Include nullability keywords in the ranges accepted for property attributes. * c-attribs.c (handle_objc_nullability_attribute): New. * c-objc.h (enum objc_property_attribute_group): Add OBJC_PROPATTR_GROUP_NULLABLE. (enum objc_property_attribute_kind):Add OBJC_PROPERTY_ATTR_NULL_UNSPECIFIED, OBJC_PROPERTY_ATTR_NULLABLE, OBJC_PROPERTY_ATTR_NONNULL, OBJC_PROPERTY_ATTR_NULL_RESETTABLE. gcc/objc/ChangeLog: PR objc/90707 * objc-act.c (objc_prop_attr_kind_for_rid): Handle nullability. (objc_add_property_declaration): Handle nullability attributes. Check that these are applicable to the property type. * objc-act.h (enum objc_property_nullability): New. gcc/testsuite/ChangeLog: PR objc/90707 * obj-c++.dg/property/at-property-4.mm: Add basic nullability tests. * objc.dg/property/at-property-4.m: Likewise. * obj-c++.dg/attributes/nullability-00.mm: New test. * obj-c++.dg/property/nullability-00.mm: New test. * objc.dg/attributes/nullability-00.m: New test. * objc.dg/property/nullability-00.m: New test. gcc/ChangeLog: PR objc/90707 * doc/extend.texi: Document the objc_nullability attribute. |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| depcomp | ||
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| ltversion.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
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| Makefile.tpl | ||
| missing | ||
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This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.