3fe07cdec8
This warning catches the case that the user has left the superclass specification from a class interface. Root classes are, of course, permitted and an attribute is added to mark these so that the diagnostic is suppressed. The warning and attribute spellings have been kept in sync with the language reference implementation (clang). The diagnostic location information present in the objective-c interface and class definitions is relatively poor. This patch adds a location for the class name to the interface and makes use of it in existing warnings. Part 1 is the changes to code and added tests. Many entries in the testsuite make use of root classes so there are a large number of mechanical changes there adding "-Wno-objc-root-class" to the options. The test changes are parts 2 (objective-c) and 3 (objective-c++) in the patch series. gcc/c-family/ChangeLog: PR objc/77404 * c-attribs.c (handle_objc_root_class_attribute): New * c-objc.h (objc_start_class_interface): Add a location value for the position of the class name. * c.opt: Add Wobjc-root-class. * stub-objc.c (objc_start_class_interface): Add a location value for the position of the class name. gcc/c/ChangeLog: PR objc/77404 * c-parser.c (c_parser_objc_class_definition): Pass the location of the class name to the interface declaration. gcc/cp/ChangeLog: PR objc/77404 * parser.c (cp_parser_objc_class_interface): Pass the location of the class name to the interface declaration. gcc/objc/ChangeLog: PR objc/77404 * objc-act.c (objc_start_class_interface): Accept the location of the class name, use it in existing diagnostic. (start_class): Accept obj_root_class type attributes. Warn when the interface for an implementation does not contain a super class (unless the diagnostic is suppressed by the the command line flag or the objc_root_class type attribute). gcc/testsuite/ChangeLog: PR objc/77404 * objc.dg/attributes/root-class-01.m: New test. * objc.dg/root-class-00.m: New test. * obj-c++.dg/attributes/root-class-01.mm: New test. * obj-c++.dg/root-class-00.mm: New test. gcc/ChangeLog: PR objc/77404 * doc/extend.texi: Document the objc_root_class attribute. * doc/invoke.texi: Document -Wobjc-root-class. |
||
|---|---|---|
| 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 | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| lt~obsolete.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| multilib.am | ||
| README | ||
| symlink-tree | ||
| test-driver | ||
| ylwrap | ||
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.