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[Ada] improve handling of unknown attributes

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Robert Dewar <dewar at adacore dot com>
Date: Tue, 29 Mar 2005 18:03:50 +0200
Subject: [Ada] improve handling of unknown attributes

Tested on i686-linux, committed on HEAD

This patch ensures that a bad attribute is properly recorded in the tree
as an error. Without this patch, some cases of bad attributes can blow up
with a compiler compiled with checks on. The following program should
give the error message:

q.adb:2:28: unrecognized attribute "Junk_Attribute"

procedure Q is
   X : Integer := Standard'Junk_Attribute;
begin
   null;
end;

even when compiled with a compiler compiled with full checks

2005-03-29  Robert Dewar  <dewar@adacore.com>

	* par-ch4.adb (P_Name): When a bad attribute is returned, return error,
	rather than proceed ahead using a junk attribute name.

Attachment: difs.15
Description: Text document

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