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[multiple changes]

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2010-10-11  Robert Dewar  <dewar@adacore.com>

	* a-textio.adb: Minor reformatting

2010-10-11  Robert Dewar  <dewar@adacore.com>

	* a-suesen.ads, a-suenst.ads,
	a-suesen.adb, a-suenst.adb,
	a-suewse.adb, a-suewst.adb,
	a-suewse.ads, a-suewst.ads,
	a-suezse.ads, a-suezst.ads,
	a-suezse.adb, a-suezst.adb: New name for string encoding packages.
	* impunit.adb: New names for string encoding units
	* Makefile.rtl: New names for string encoding units
	* rtsfind.ads: Minor code reorganization.

2010-10-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch5.adb: Code clean up.

2010-10-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Check_Limited_Return): Specialize warning on limited
	returns when in a generic context.
	(Analyze_Function_Return): ditto.

From-SVN: r165276
This commit is contained in:
Arnaud Charlet 2010-10-11 10:23:31 +02:00
parent 0144fd18d7
commit 9694c03951
13 changed files with 119 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
gcc/ada/ChangeLog
View File

@ -1,3 +1,29 @@
2010-10-11 Robert Dewar <dewar@adacore.com>
* a-textio.adb: Minor reformatting
2010-10-11 Robert Dewar <dewar@adacore.com>
* a-suesen.ads, a-suenst.ads,
a-suesen.adb, a-suenst.adb,
a-suewse.adb, a-suewst.adb,
a-suewse.ads, a-suewst.ads,
a-suezse.ads, a-suezst.ads,
a-suezse.adb, a-suezst.adb: New name for string encoding packages.
* impunit.adb: New names for string encoding units
* Makefile.rtl: New names for string encoding units
* rtsfind.ads: Minor code reorganization.
2010-10-11 Ed Schonberg <schonberg@adacore.com>
* exp_ch5.adb: Code clean up.
2010-10-11 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Check_Limited_Return): Specialize warning on limited
returns when in a generic context.
(Analyze_Function_Return): ditto.
2010-10-11 Robert Dewar <dewar@adacore.com>
* s-multip.ads: Fix header.

6
gcc/ada/Makefile.rtl
View File

@ -227,9 +227,9 @@ GNATRTL_NONTASKING_OBJS= \
a-stzsup$(objext) \
a-stzunb$(objext) \
a-suenco$(objext) \
a-suesen$(objext) \
a-suewse$(objext) \
a-suezse$(objext) \
a-suenst$(objext) \
a-suewst$(objext) \
a-suezst$(objext) \
a-suteio$(objext) \
a-swbwha$(objext) \
a-swfwha$(objext) \

6
gcc/ada/a-suesen.adb → gcc/ada/a-suenst.adb
View File

@ -2,7 +2,7 @@
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.UTF_ENCODING.STRING_ENCODING --
-- ADA.STRINGS.UTF_ENCODING.STRINGS --
-- --
-- B o d y --
-- --
@ -29,7 +29,7 @@
-- --
------------------------------------------------------------------------------
package body Ada.Strings.UTF_Encoding.String_Encoding is
package body Ada.Strings.UTF_Encoding.Strings is
use Interfaces;
------------
@ -338,4 +338,4 @@ package body Ada.Strings.UTF_Encoding.String_Encoding is
return Result;
end Encode;
end Ada.Strings.UTF_Encoding.String_Encoding;
end Ada.Strings.UTF_Encoding.Strings;

8
gcc/ada/a-suesen.ads → gcc/ada/a-suenst.ads
View File

@ -2,7 +2,7 @@
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.UTF_ENCODING.STRING_ENCODING --
-- ADA.STRINGS.UTF_ENCODING.STRINGS --
-- --
-- S p e c --
-- --
@ -17,8 +17,8 @@
-- and decoding String values using UTF encodings. Note: this package is
-- consistent with Ada 95, and may be included in Ada 95 implementations.
package Ada.Strings.UTF_Encoding.String_Encoding is
pragma Pure (String_Encoding);
package Ada.Strings.UTF_Encoding.Strings is
pragma Pure (Strings);
-- The encoding routines take a String as input and encode the result
-- using the specified UTF encoding method. The result includes a BOM if
@ -62,4 +62,4 @@ package Ada.Strings.UTF_Encoding.String_Encoding is
(Item : UTF_16_Wide_String) return String;
-- The input is encoded in UTF-16 and returned as a String value
end Ada.Strings.UTF_Encoding.String_Encoding;
end Ada.Strings.UTF_Encoding.Strings;

6
gcc/ada/a-suewse.adb → gcc/ada/a-suewst.adb
View File

@ -2,7 +2,7 @@
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.UTF_ENCODING.WIDE_STRING_ENCODING --
-- ADA.STRINGS.UTF_ENCODING.WIDE_STRINGS --
-- --
-- B o d y --
-- --
@ -29,7 +29,7 @@
-- --
------------------------------------------------------------------------------
package body Ada.Strings.UTF_Encoding.Wide_String_Encoding is
package body Ada.Strings.UTF_Encoding.Wide_Strings is
use Interfaces;
------------
@ -367,4 +367,4 @@ package body Ada.Strings.UTF_Encoding.Wide_String_Encoding is
return Result;
end Encode;
end Ada.Strings.UTF_Encoding.Wide_String_Encoding;
end Ada.Strings.UTF_Encoding.Wide_Strings;

8
gcc/ada/a-suewse.ads → gcc/ada/a-suewst.ads
View File

@ -2,7 +2,7 @@
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.UTF_ENCODING.WIDE_STRING_ENCODING --
-- ADA.STRINGS.UTF_ENCODING.WIDE_STRINGS --
-- --
-- S p e c --
-- --
@ -17,8 +17,8 @@
-- and decoding Wide_String values using UTF encodings. Note: this package is
-- consistent with Ada 95, and may be included in Ada 95 implementations.
package Ada.Strings.UTF_Encoding.Wide_String_Encoding is
pragma Pure (Wide_String_Encoding);
package Ada.Strings.UTF_Encoding.Wide_Strings is
pragma Pure (Wide_Strings);
-- The encoding routines take a Wide_String as input and encode the result
-- using the specified UTF encoding method. The result includes a BOM if
@ -64,4 +64,4 @@ package Ada.Strings.UTF_Encoding.Wide_String_Encoding is
(Item : UTF_16_Wide_String) return Wide_String;
-- The input is encoded in UTF-16 and returned as a Wide_String value
end Ada.Strings.UTF_Encoding.Wide_String_Encoding;
end Ada.Strings.UTF_Encoding.Wide_Strings;

6
gcc/ada/a-suezse.adb → gcc/ada/a-suezst.adb
View File

@ -2,7 +2,7 @@
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.UTF_ENCODING.WIDE_WIDE_STRING_ENCODING --
-- ADA.STRINGS.UTF_ENCODING.WIDE_WIDE_STRINGS --
-- --
-- B o d y --
-- --
@ -29,7 +29,7 @@
-- --
------------------------------------------------------------------------------
package body Ada.Strings.UTF_Encoding.Wide_Wide_String_Encoding is
package body Ada.Strings.UTF_Encoding.Wide_Wide_Strings is
use Interfaces;
------------
@ -426,4 +426,4 @@ package body Ada.Strings.UTF_Encoding.Wide_Wide_String_Encoding is
return Result (1 .. Len);
end Encode;
end Ada.Strings.UTF_Encoding.Wide_Wide_String_Encoding;
end Ada.Strings.UTF_Encoding.Wide_Wide_Strings;

8
gcc/ada/a-suezse.ads → gcc/ada/a-suezst.ads
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@ -2,7 +2,7 @@
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.UTF_ENCODING.WIDE_WIDE_STRING_ENCODING --
-- ADA.STRINGS.UTF_ENCODING.WIDE_WIDE_STRINGS --
-- --
-- S p e c --
-- --
@ -18,8 +18,8 @@
-- consistent with Ada 2005, and may be used in Ada 2005 mode, but cannot be
-- used in Ada 95 mode, since Wide_Wide_Character is an Ada 2005 feature.
package Ada.Strings.UTF_Encoding.Wide_Wide_String_Encoding is
pragma Pure (Wide_Wide_String_Encoding);
package Ada.Strings.UTF_Encoding.Wide_Wide_Strings is
pragma Pure (Wide_Wide_Strings);
-- The encoding routines take a Wide_Wide_String as input and encode the
-- result using the specified UTF encoding method. The result includes a
@ -61,4 +61,4 @@ package Ada.Strings.UTF_Encoding.Wide_Wide_String_Encoding is
(Item : UTF_16_Wide_String) return Wide_Wide_String;
-- The input is encoded in UTF-16 and returned as a Wide_String value
end Ada.Strings.UTF_Encoding.Wide_Wide_String_Encoding;
end Ada.Strings.UTF_Encoding.Wide_Wide_Strings;

8
gcc/ada/a-textio.adb
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@ -684,10 +684,18 @@ package body Ada.Text_IO is
Get_Immediate (Current_In, Item, Available);
end Get_Immediate;
--------------
-- Get_Line --
--------------
procedure Get_Line
(File : File_Type;
Item : out String;
Last : out Natural) is separate;
-- The implementation of Ada.Text_IO.Get_Line is split into a subunit so
-- that different implementations can be used on different systems. In
-- particular the standard implementation uses low level stuff that is
-- not appropriate for the JVM and .NET implementations.
procedure Get_Line
(Item : out String;

39
gcc/ada/exp_ch5.adb
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@ -3151,8 +3151,11 @@ package body Exp_Ch5 is
else
-- We're about to drop Return_Object_Declarations on the floor, so
-- we need to insert it, in case it got expanded into useful code.
-- Remove side effects from expression, which may be duplicated in
-- subsequent checks (see Expand_Simple_Function_Return).
Insert_List_Before (N, Return_Object_Declarations (N));
Remove_Side_Effects (Exp);
-- Build simple_return_statement that returns the expression directly
@ -4248,29 +4251,35 @@ package body Exp_Ch5 is
end;
-- AI05-0073: If function has a controlling access result, check that
-- the tag of the return value matches the designated type.
-- the tag of the return value, if it is not null, matches designated
-- type of return type.
-- The "or else True" needs commenting here ???
elsif Ekind (R_Type) = E_Anonymous_Access_Type
and then Has_Controlling_Result (Scope_Id)
and then (Ada_Version >= Ada_12 or else True)
then
Insert_Action (Exp,
Insert_Action (N,
Make_Raise_Constraint_Error (Loc,
Condition =>
Make_Op_Ne (Loc,
Left_Opnd =>
Make_Selected_Component (Loc,
Prefix => Duplicate_Subexpr (Exp),
Selector_Name =>
Make_Identifier (Loc, Chars => Name_uTag)),
Right_Opnd =>
Make_Attribute_Reference (Loc,
Prefix =>
New_Occurrence_Of (Designated_Type (R_Type), Loc),
Attribute_Name => Name_Tag)),
Reason => CE_Tag_Check_Failed));
Make_And_Then (Loc,
Left_Opnd =>
Make_Op_Ne (Loc,
Left_Opnd => Exp,
Right_Opnd => Make_Null (Loc)),
Right_Opnd => Make_Op_Ne (Loc,
Left_Opnd =>
Make_Selected_Component (Loc,
Prefix => Duplicate_Subexpr (Exp),
Selector_Name =>
Make_Identifier (Loc, Chars => Name_uTag)),
Right_Opnd =>
Make_Attribute_Reference (Loc,
Prefix =>
New_Occurrence_Of (Designated_Type (R_Type), Loc),
Attribute_Name => Name_Tag))),
Reason => CE_Tag_Check_Failed),
Suppress => All_Checks);
end if;
-- If we are returning an object that may not be bit-aligned, then copy

6
gcc/ada/impunit.adb
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@ -180,8 +180,8 @@ package body Impunit is
"a-wichha", -- Ada.Wide_Characters.Handling
"a-stuten", -- Ada.Strings.UTF_Encoding
"a-suenco", -- Ada.Strings.UTF_Encoding.Conversions
"a-suesen", -- Ada.Strings.UTF_Encoding.String_Encoding
"a-suewse", -- Ada.Strings.UTF_Encoding.Wide_String_Encoding
"a-suenst", -- Ada.Strings.UTF_Encoding.Strings
"a-suewst", -- Ada.Strings.UTF_Encoding.Wide_Strings
---------------------------
-- GNAT Special IO Units --
@ -474,7 +474,7 @@ package body Impunit is
-- Note: strictly the following should be Ada 2012 units, but it seems
-- harmless (and useful) to make then available in Ada 2005 mode.
"a-suezse", -- Ada.Strings.UTF_Encoding.Wide_Wide_String_Encoding
"a-suezst", -- Ada.Strings.UTF_Encoding.Wide_Wide_Strings
---------------------------
-- GNAT Special IO Units --

1
gcc/ada/rtsfind.ads
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@ -265,7 +265,6 @@ package Rtsfind is
System_Machine_Code,
System_Mantissa,
System_Memcop,
System_Multiprocessors,
System_Pack_03,
System_Pack_05,
System_Pack_06,

47
gcc/ada/sem_ch6.adb
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@ -495,8 +495,16 @@ package body Sem_Ch6 is
-- In GNAT mode, this is just a warning, to allow it to be
-- evilly turned off. Otherwise it is a real error.
-- In a generic context, simplify the warning because it makes
-- no sense to discuss pass-by-reference or copy.
elsif Warn_On_Ada_2005_Compatibility or GNAT_Mode then
if Is_Immutably_Limited_Type (R_Type) then
if Inside_A_Generic then
Error_Msg_N
("return of limited object not permitted in Ada2005 " &
"(RM-2005 6.5(5.5/2))?", Expr);
elsif Is_Immutably_Limited_Type (R_Type) then
Error_Msg_N
("return by reference not permitted in Ada 2005 " &
"(RM-2005 6.5(5.5/2))?", Expr);
@ -512,9 +520,11 @@ package body Sem_Ch6 is
return; -- skip continuation messages below
end if;
Error_Msg_N
("\consider switching to return of access type", Expr);
Explain_Limited_Type (R_Type, Expr);
if not Inside_A_Generic then
Error_Msg_N
("\consider switching to return of access type", Expr);
Explain_Limited_Type (R_Type, Expr);
end if;
end if;
end Check_Limited_Return;
@ -764,16 +774,25 @@ package body Sem_Ch6 is
and then Object_Access_Level (Expr) >
Subprogram_Access_Level (Scope_Id)
then
Rewrite (N,
Make_Raise_Program_Error (Loc,
Reason => PE_Accessibility_Check_Failed));
Analyze (N);
Error_Msg_N
("cannot return a local value by reference?", N);
Error_Msg_NE
("\& will be raised at run time?",
N, Standard_Program_Error);
-- Suppress the message in a generic, where the rewriting
-- is irrelevant.
if Inside_A_Generic then
null;
else
Rewrite (N,
Make_Raise_Program_Error (Loc,
Reason => PE_Accessibility_Check_Failed));
Analyze (N);
Error_Msg_N
("cannot return a local value by reference?", N);
Error_Msg_NE
("\& will be raised at run time?",
N, Standard_Program_Error);
end if;
end if;
if Known_Null (Expr)
@ -4255,9 +4274,11 @@ package body Sem_Ch6 is
declare
Typ : constant Entity_Id := Etype (Designator);
Utyp : constant Entity_Id := Underlying_Type (Typ);
begin
if Is_Immutably_Limited_Type (Typ) then
Set_Returns_By_Ref (Designator);
elsif Present (Utyp) and then CW_Or_Has_Controlled_Part (Utyp) then
Set_Returns_By_Ref (Designator);
end if;