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Ed Schonberg 432c8cddda [Ada] Legality of protected subp. implementing interface operations
This patch refines the predicate that implements rule in RM 9.4 (11.9/2)

Compiling b94.ads must yield:

   b94.ads:11:17: illegal overriding of subprogram inherited from interface
   b94.ads:11:17: first formal of "N" declared at line 8 must be of mode
     "out", "in out" or access-to-variable

----
package B94 is

   type Prot2_Int is protected interface;
   procedure  J (PI : in     Prot2_Int; N : in Integer)  is null;
   procedure  K (PI : in out Prot2_Int; N : in Integer)  is null;
   procedure  L (PI :    out Prot2_Int; N : in Integer)  is null;
   procedure  M (PI : access Prot2_Int; N : in Integer)  is null;
   procedure  N (PI : access constant Prot2_Int; N : in Integer)  is null;

   protected type Protected_2 is new Prot2_Int with
      procedure N (N : in Integer);                   -- ERROR: {7;1}
   end Protected_2;

end B94;

2019-08-19  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

	* sem_ch6.adb (Check_Synchronized_Overriding): Complete
	predicate that applies legality check in 9.4 (11.9/2): if an
	inherited subprogram is implemented by a protected procedure or
	entry, its first paarameter must be out, in_out or
	access_to_varible.

From-SVN: r274655
2019-08-19 08:36:44 +00:00
config
contrib test_summary: Do not escape "=". 2019-08-13 17:17:49 +02:00
fixincludes [Darwin, fixincludes] Fix PR83531 2019-08-18 18:54:13 +00:00
gcc [Ada] Legality of protected subp. implementing interface operations 2019-08-19 08:36:44 +00:00
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