Commit 2f54ef3d by Arnaud Charlet

[multiple changes]

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb (Has_Non_Null_Refinement): Rename to
	Has_Non_Null_Visible_Refinement.
	(Has_Null_Refinement): Rename to Has_Null_Visible_Refinement.
	* einfo.ads Update the documentation of
	attribute Has_Non_Null_Refinement and attribute Has_Null_Refinement.
	(Has_Non_Null_Refinement): Rename to Has_Non_Null_Visible_Refinement
	and update occurrences in entities.
	(Has_Null_Refinement): Rename to Has_Null_Visible_Refinement and update
	occurrences in entities.
	* sem_prag.adb (Check_In_Out_States): Update the calls to
	Has_[Non_]Null_Refinement.
	(Check_Input_States): Update the
	calls to Has_[Non_]Null_Refinement.
	(Check_Output_States): Update the calls to Has_[Non_]Null_Refinement.
	(Check_Proof_In_States): Update the calls to Has_[Non_]Null_Refinement.
	(Collect_Global_Item): Update the calls to Has_[Non_]Null_Refinement.
	(Is_Null_Refined_State): Update the calls to Has_[Non_]Null_Refinement.
	(Match_Item): Update the calls to Has_[Non_]Null_Refinement.
	* sem_util.adb (Has_Non_Null_Refinement): New routine.
	(Has_Null_Refinement): New routine.
	* sem_util.ads (Has_Non_Null_Refinement): New routine.
	(Has_Null_Refinement): New routine.

2015-11-18  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.adb: Minor reformatting and typo fixes.

From-SVN: r230525
parent d9307840
2015-11-18 Hristian Kirtchev <kirtchev@adacore.com>
* einfo.adb (Has_Non_Null_Refinement): Rename to
Has_Non_Null_Visible_Refinement.
(Has_Null_Refinement): Rename to Has_Null_Visible_Refinement.
* einfo.ads Update the documentation of
attribute Has_Non_Null_Refinement and attribute Has_Null_Refinement.
(Has_Non_Null_Refinement): Rename to Has_Non_Null_Visible_Refinement
and update occurrences in entities.
(Has_Null_Refinement): Rename to Has_Null_Visible_Refinement and update
occurrences in entities.
* sem_prag.adb (Check_In_Out_States): Update the calls to
Has_[Non_]Null_Refinement.
(Check_Input_States): Update the
calls to Has_[Non_]Null_Refinement.
(Check_Output_States): Update the calls to Has_[Non_]Null_Refinement.
(Check_Proof_In_States): Update the calls to Has_[Non_]Null_Refinement.
(Collect_Global_Item): Update the calls to Has_[Non_]Null_Refinement.
(Is_Null_Refined_State): Update the calls to Has_[Non_]Null_Refinement.
(Match_Item): Update the calls to Has_[Non_]Null_Refinement.
* sem_util.adb (Has_Non_Null_Refinement): New routine.
(Has_Null_Refinement): New routine.
* sem_util.ads (Has_Non_Null_Refinement): New routine.
(Has_Null_Refinement): New routine.
2015-11-18 Gary Dismukes <dismukes@adacore.com>
* exp_util.adb: Minor reformatting and typo fixes.
2015-11-18 Hristian Kirtchev <kirtchev@adacore.com>
* sem_ch4.adb: Minor reformatting.
2015-11-18 Hristian Kirtchev <kirtchev@adacore.com>
......
......@@ -7301,11 +7301,11 @@ package body Einfo is
and then Present (Non_Limited_View (Id));
end Has_Non_Limited_View;
-----------------------------
-- Has_Non_Null_Refinement --
-----------------------------
-------------------------------------
-- Has_Non_Null_Visible_Refinement --
-------------------------------------
function Has_Non_Null_Refinement (Id : E) return B is
function Has_Non_Null_Visible_Refinement (Id : E) return B is
begin
-- "Refinement" is a concept applicable only to abstract states
......@@ -7322,7 +7322,7 @@ package body Einfo is
end if;
return False;
end Has_Non_Null_Refinement;
end Has_Non_Null_Visible_Refinement;
-----------------------------
-- Has_Null_Abstract_State --
......@@ -7337,11 +7337,11 @@ package body Einfo is
and then Is_Null_State (Node (First_Elmt (Abstract_States (Id))));
end Has_Null_Abstract_State;
-------------------------
-- Has_Null_Refinement --
-------------------------
---------------------------------
-- Has_Null_Visible_Refinement --
---------------------------------
function Has_Null_Refinement (Id : E) return B is
function Has_Null_Visible_Refinement (Id : E) return B is
begin
-- "Refinement" is a concept applicable only to abstract states
......@@ -7358,7 +7358,7 @@ package body Einfo is
end if;
return False;
end Has_Null_Refinement;
end Has_Null_Visible_Refinement;
--------------------
-- Has_Unmodified --
......
......@@ -1761,9 +1761,10 @@ package Einfo is
-- E_Abstract_State entities. True if their Non_Limited_View attribute
-- is present.
-- Has_Non_Null_Refinement (synth)
-- Defined in E_Abstract_State entities. True if the state has at least
-- one variable or state constituent in aspect/pragma Refined_State.
-- Has_Non_Null_Visible_Refinement (synth)
-- Defined in E_Abstract_State entities. True if the state has a visible
-- refinement of at least one variable or state constituent as expressed
-- in aspect/pragma Refined_State.
-- Has_Non_Standard_Rep (Flag75) [implementation base type only]
-- Defined in all type entities. Set when some representation clause
......@@ -1779,9 +1780,9 @@ package Einfo is
-- Defined in package entities. True if the package is subject to a null
-- Abstract_State aspect/pragma.
-- Has_Null_Refinement (synth)
-- Defined in E_Abstract_State entities. True if the state has a null
-- refinement in aspect/pragma Refined_State.
-- Has_Null_Visible_Refinement (synth)
-- Defined in E_Abstract_State entities. True if the state has a visible
-- null refinement as expressed in aspect/pragma Refined_State.
-- Has_Object_Size_Clause (Flag172)
-- Defined in entities for types and subtypes. Set if an Object_Size
......@@ -5525,8 +5526,8 @@ package Einfo is
-- From_Limited_With (Flag159)
-- Has_Visible_Refinement (Flag263)
-- Has_Non_Limited_View (synth)
-- Has_Non_Null_Refinement (synth)
-- Has_Null_Refinement (synth)
-- Has_Non_Null_Visible_Refinement (synth)
-- Has_Null_Visible_Refinement (synth)
-- Is_External_State (synth)
-- Is_Null_State (synth)
-- Is_Synchronized_State (synth)
......@@ -7255,9 +7256,9 @@ package Einfo is
function Has_Entries (Id : E) return B;
function Has_Foreign_Convention (Id : E) return B;
function Has_Non_Limited_View (Id : E) return B;
function Has_Non_Null_Refinement (Id : E) return B;
function Has_Non_Null_Visible_Refinement (Id : E) return B;
function Has_Null_Abstract_State (Id : E) return B;
function Has_Null_Refinement (Id : E) return B;
function Has_Null_Visible_Refinement (Id : E) return B;
function Implementation_Base_Type (Id : E) return E;
function Is_Base_Type (Id : E) return B;
function Is_Boolean_Type (Id : E) return B;
......
......@@ -6586,8 +6586,8 @@ package body Exp_Util is
if Is_Private_Type (Unc_Typ)
and then Has_Unknown_Discriminants (Unc_Typ)
then
-- The caller requests a unque external name for both the private and
-- the full subtype.
-- The caller requests a unique external name for both the private
-- and the full subtype.
if Present (Related_Id) then
Full_Subtyp :=
......
......@@ -23308,7 +23308,7 @@ package body Sem_Prag is
return
Ekind (Item_Id) = E_Abstract_State
and then Has_Null_Refinement (Item_Id);
and then Has_Null_Visible_Refinement (Item_Id);
else
return False;
end if;
......@@ -23359,7 +23359,7 @@ package body Sem_Prag is
-- An abstract state with visible null refinement matches
-- null or Empty (special case).
if Has_Null_Refinement (Dep_Item_Id)
if Has_Null_Visible_Refinement (Dep_Item_Id)
and then (No (Ref_Item) or else Nkind (Ref_Item) = N_Null)
then
Record_Item (Dep_Item_Id);
......@@ -23368,7 +23368,7 @@ package body Sem_Prag is
-- An abstract state with visible non-null refinement
-- matches one of its constituents.
elsif Has_Non_Null_Refinement (Dep_Item_Id) then
elsif Has_Non_Null_Visible_Refinement (Dep_Item_Id) then
if Is_Entity_Name (Ref_Item) then
Ref_Item_Id := Entity_Of (Ref_Item);
......@@ -23698,7 +23698,7 @@ package body Sem_Prag is
-- Ensure that all of the constituents are utilized as
-- outputs in pragma Refined_Depends.
elsif Has_Non_Null_Refinement (Item_Id) then
elsif Has_Non_Null_Visible_Refinement (Item_Id) then
Check_Constituent_Usage (Item_Id);
end if;
end if;
......@@ -24270,7 +24270,7 @@ package body Sem_Prag is
-- Ensure that one of the three coverage variants is satisfied
if Ekind (Item_Id) = E_Abstract_State
and then Has_Non_Null_Refinement (Item_Id)
and then Has_Non_Null_Visible_Refinement (Item_Id)
then
Check_Constituent_Usage (Item_Id);
end if;
......@@ -24361,7 +24361,7 @@ package body Sem_Prag is
-- is of mode Input.
if Ekind (Item_Id) = E_Abstract_State
and then Has_Non_Null_Refinement (Item_Id)
and then Has_Non_Null_Visible_Refinement (Item_Id)
then
Check_Constituent_Usage (Item_Id);
end if;
......@@ -24455,7 +24455,7 @@ package body Sem_Prag is
-- have mode Output.
if Ekind (Item_Id) = E_Abstract_State
and then Has_Non_Null_Refinement (Item_Id)
and then Has_Non_Null_Visible_Refinement (Item_Id)
then
Check_Constituent_Usage (Item_Id);
end if;
......@@ -24545,7 +24545,7 @@ package body Sem_Prag is
-- is of mode Proof_In
if Ekind (Item_Id) = E_Abstract_State
and then Has_Non_Null_Refinement (Item_Id)
and then Has_Non_Null_Visible_Refinement (Item_Id)
then
Check_Constituent_Usage (Item_Id);
end if;
......@@ -24750,10 +24750,10 @@ package body Sem_Prag is
-- be null in which case there are no constituents.
if Ekind (Item_Id) = E_Abstract_State then
if Has_Null_Refinement (Item_Id) then
if Has_Null_Visible_Refinement (Item_Id) then
Has_Null_State := True;
elsif Has_Non_Null_Refinement (Item_Id) then
elsif Has_Non_Null_Visible_Refinement (Item_Id) then
Append_New_Elmt (Item_Id, States);
if Item_Mode = Name_Input then
......
......@@ -9078,6 +9078,25 @@ package body Sem_Util is
end if;
end Has_No_Obvious_Side_Effects;
-----------------------------
-- Has_Non_Null_Refinement --
-----------------------------
function Has_Non_Null_Refinement (Id : Entity_Id) return Boolean is
begin
pragma Assert (Ekind (Id) = E_Abstract_State);
-- For a refinement to be non-null, the first constituent must be
-- anything other than null.
if Present (Refinement_Constituents (Id)) then
return
Nkind (Node (First_Elmt (Refinement_Constituents (Id)))) /= N_Null;
end if;
return False;
end Has_Non_Null_Refinement;
------------------------
-- Has_Null_Exclusion --
------------------------
......@@ -9168,6 +9187,25 @@ package body Sem_Util is
end if;
end Has_Null_Extension;
-------------------------
-- Has_Null_Refinement --
-------------------------
function Has_Null_Refinement (Id : Entity_Id) return Boolean is
begin
pragma Assert (Ekind (Id) = E_Abstract_State);
-- For a refinement to be null, the state's sole constituent must be a
-- null.
if Present (Refinement_Constituents (Id)) then
return
Nkind (Node (First_Elmt (Refinement_Constituents (Id)))) = N_Null;
end if;
return False;
end Has_Null_Refinement;
-------------------------------
-- Has_Overriding_Initialize --
-------------------------------
......
......@@ -1059,9 +1059,19 @@ package Sem_Util is
-- routine in Remove_Side_Effects is much more extensive and perhaps could
-- be shared, so that this routine would be more accurate.
function Has_Non_Null_Refinement (Id : Entity_Id) return Boolean;
-- Determine whether abstract state Id has at least one nonnull constituent
-- as expressed in pragma Refined_State. This function does not take into
-- account the visible refinement region of abstract state Id.
function Has_Null_Exclusion (N : Node_Id) return Boolean;
-- Determine whether node N has a null exclusion
function Has_Null_Refinement (Id : Entity_Id) return Boolean;
-- Determine whether abstract state Id has a null refinement as expressed
-- in pragma Refined_State. This function does not take into account the
-- visible refinement region of abstract state Id.
function Has_Overriding_Initialize (T : Entity_Id) return Boolean;
-- Predicate to determine whether a controlled type has a user-defined
-- Initialize primitive (and, in Ada 2012, whether that primitive is
......
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