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[Ada] gnatbind: do not list No_Implementation_Restrictions 

When the gnatbind -r switch is used, do not list
No_Implementation_Restrictions, because after using the new restriction list,
No_Implementation_Restrictions will cause an error.

2018-05-23  Bob Duff  <duff@adacore.com>

gcc/ada/

	* gnatbind.adb (List_Applicable_Restrictions): Add
	No_Implementation_Restrictions to the list of restrictions not to list.
	Remove double negative "not No_Restriction_List".  Comment the
	commentary that is output, so it won't cause errors if used directly in
	a gnat.adc.

From-SVN: r260593
This commit is contained in:
Bob Duff 2018-05-23 10:23:34 +00:00 committed by Pierre-Marie de Rodat
parent b30f86de98
commit b77c24b8c0
2 changed files with 34 additions and 20 deletions
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8
gcc/ada/ChangeLog
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@ -1,3 +1,11 @@
2018-05-23 Bob Duff <duff@adacore.com>
* gnatbind.adb (List_Applicable_Restrictions): Add
No_Implementation_Restrictions to the list of restrictions not to list.
Remove double negative "not No_Restriction_List". Comment the
commentary that is output, so it won't cause errors if used directly in
a gnat.adc.
2018-05-23 Ed Schonberg <schonberg@adacore.com>
* sem_prag.adb (Inherit_Class_Wide_Pre): Refine legality check on

46
gcc/ada/gnatbind.adb
View File

@ -167,55 +167,61 @@ procedure Gnatbind is
-- -r switch is used. Not all restrictions are output for the reasons
-- given below in the list, and this array is used to test whether
-- the corresponding pragma should be listed. True means that it
-- should not be listed.
-- should be listed.
No_Restriction_List : constant array (All_Restrictions) of Boolean :=
(No_Standard_Allocators_After_Elaboration => True,
Restrictions_To_List : constant array (All_Restrictions) of Boolean :=
(No_Standard_Allocators_After_Elaboration => False,
-- This involves run-time conditions not checkable at compile time
No_Anonymous_Allocators => True,
No_Anonymous_Allocators => False,
-- Premature, since we have not implemented this yet
No_Exception_Propagation => True,
No_Exception_Propagation => False,
-- Modifies code resulting in different exception semantics
No_Exceptions => True,
No_Exceptions => False,
-- Has unexpected Suppress (All_Checks) effect
No_Implicit_Conditionals => True,
No_Implicit_Conditionals => False,
-- This could modify and pessimize generated code
No_Implicit_Dynamic_Code => True,
No_Implicit_Dynamic_Code => False,
-- This could modify and pessimize generated code
No_Implicit_Loops => True,
No_Implicit_Loops => False,
-- This could modify and pessimize generated code
No_Recursion => True,
No_Recursion => False,
-- Not checkable at compile time
No_Reentrancy => True,
No_Reentrancy => False,
-- Not checkable at compile time
Max_Entry_Queue_Length => True,
Max_Entry_Queue_Length => False,
-- Not checkable at compile time
Max_Storage_At_Blocking => True,
Max_Storage_At_Blocking => False,
-- Not checkable at compile time
No_Implementation_Restrictions => False,
-- Listing this one would cause a chicken&egg problem; the program
-- doesn't use implementation-defined restrictions, but after
-- applying the listed restrictions, it probably WILL use them,
-- so No_Implementation_Restrictions will cause an error.
-- The following three should not be partition-wide, so the
-- following tests are junk to be removed eventually ???
No_Specification_Of_Aspect => True,
No_Specification_Of_Aspect => False,
-- Requires a parameter value, not a count
No_Use_Of_Attribute => True,
No_Use_Of_Attribute => False,
-- Requires a parameter value, not a count
No_Use_Of_Pragma => True,
No_Use_Of_Pragma => False,
-- Requires a parameter value, not a count
others => False);
others => True);
Additional_Restrictions_Listed : Boolean := False;
-- Set True if we have listed header for restrictions
@ -279,14 +285,14 @@ procedure Gnatbind is
-- Loop through restrictions
for R in All_Restrictions loop
if not No_Restriction_List (R)
if Restrictions_To_List (R)
and then Restriction_Could_Be_Set (R)
then
if not Additional_Restrictions_Listed then
Write_Eol;
Write_Line
("The following additional restrictions may be applied to "
& "this partition:");
("-- The following additional restrictions may be applied "
& "to this partition:");
Additional_Restrictions_Listed := True;
end if;