[COMMITTED] ada: Add escape hatch to configurable run-time
Checks
Commit Message
From: Ronan Desplanques <desplanques@adacore.com>
Before this patch, the fact that Restrictions pragmas had to fit on
a single line in system.ads was difficult to reconcile with the
80-character line limit that is enforced in that file.
The special rules for pragmas in system.ads made it impossible to us
the Style_Checks pragma to allow long Restrictions pragmas. This patch
relaxes those rules so the Style_Checks pragma can be used in
system.ads.
gcc/ada/
* targparm.adb: Allow pragma Style_Checks in some forms.
* targparm.ads: Document new pragma permission.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/targparm.adb | 8 ++++++++
gcc/ada/targparm.ads | 4 ++++
2 files changed, 12 insertions(+)
@@ -660,6 +660,14 @@ package body Targparm is
Opt.Task_Dispatching_Policy_Sloc := System_Location;
goto Line_Loop_Continue;
+ -- Allow "pragma Style_Checks (On);" and "pragma Style_Checks (Off);"
+ -- to make it possible to have long "pragma Restrictions" line.
+
+ elsif Looking_At_Skip ("pragma Style_Checks (On);") or else
+ Looking_At_Skip ("pragma Style_Checks (Off);")
+ then
+ goto Line_Loop_Continue;
+
-- No other configuration pragmas are permitted
elsif Looking_At ("pragma ") then
@@ -110,6 +110,10 @@ package Targparm is
-- If a pragma Profile with a valid profile argument appears, then
-- the appropriate restrictions and policy flags are set.
+ -- pragma Style_Checks is allowed with "On" or "Off" as an argument, in
+ -- order to make the conditions on pragma Restrictions documented in the
+ -- next paragraph easier to manage.
+
-- The only other pragma allowed is a pragma Restrictions that specifies
-- a restriction that will be imposed on all units in the partition. Note
-- that in this context, only one restriction can be specified in a single