This is the mail archive of the mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]

PATCH: Objective-C Fixes -- TAKE ONE

Hello all,

I've withdrawn the Pascal strings patch for the time being
but have another one for you to consider.

The following patch contains fixes to the Objective-C (and
*only* Objective-C) compiler in gcc3.  The most notable of
these is the added support for forward @protocol declarations,
along with checking for any circular references that result.
Several test cases have also been added.

These fixes are also part of the 2.95.2 ObjC compiler
included with Darwin.




         * (OBJC_NEED_RAW_IDENTIFIER): Define macro and flag 
         contextualizing ObjC class name lookup by the lexer.
         (typespec_reserved_nonattr): Disable ObjC class name lookup after
         seeing a TYPESPEC.
         (protocoldef): Add support for forward @protocol declarations.
         (yylexname): Suppress ObjC class name lookup in certain contexts;
         re-enable after lookup is complete.
         (_yylex): Re-enable ObjC class name lookup when certain
         punctuation marks are seen.
         * objc/objc-act.c (check_protocol_recursively): New function used
         for finding circular dependencies in protocols.
         (objc_declare_protocols): New function for handling forward
         @protocol declarations.
         (receiver_is_class_object): Detect the case when 'self' is used
         inside of a class method.
         (build_message_expr): Issue a warning if class method is desired
         but instance method is found instead.
         (conforms_to_protocol): Streamline.
         (objc_comptypes): Detect the fact that 'Bar<Foo> foo' conforms to
         protocol Foo, even if 'Bar foo' does not.
         (check_protocols): Streamline.
         (start_protocol): Add checks for circular and duplicate protocol
         (encode_aggregate_within): For typedefs of structs, encode the
         underlying struct.
         * objc/objc-act.h (PROTOCOL_DEFINED): New tree accessor.
         (objc_declare_protocols): New prototype.

         * objc.dg/fwd-proto-1.m: New.
         * objc.dg/local-decl-1.m: New.
         * objc.dg/naming-1.m: New.
         * objc.dg/naming-2.m: New.
         * objc.dg/proto-hier-1.m: New.


Ziemowit Laski                   Apple Computer, Inc.                 2 Infinite Loop, MS 302-4SN
+1.408.974.6229  Fax .1344       Cupertino, CA  95014-2085

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]