-- --
-- B o d y --
-- --
--- Copyright (C) 2000-2004 Free Software Foundation, Inc. --
+-- Copyright (C) 2000-2007, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-with Lib; use Lib;
-with Namet; use Namet;
-with Opt; use Opt;
+with Atree; use Atree;
+with Sinfo; use Sinfo;
+with Fname.UF; use Fname.UF;
+with Lib; use Lib;
+with Namet; use Namet;
+with Uname; use Uname;
package body Impunit is
subtype File_Name_8 is String (1 .. 8);
type File_List is array (Nat range <>) of File_Name_8;
- -- The following is a giant string containing the concenated names
- -- of all non-implementation internal files, i.e. the complete list
- -- of files for internal units which a program may legitimately WITH.
+ ------------------
+ -- Ada 95 Units --
+ ------------------
- -- Note that this list should match the list of units documented in
- -- the "GNAT Library" section of the GNAT Reference Manual.
+ -- The following is a giant string list containing the names of all
+ -- non-implementation internal files, i.e. the complete list of files for
+ -- internal units which a program may legitimately WITH when operating in
+ -- either Ada 95 or Ada 05 mode.
- Non_Imp_File_Names : constant File_List := (
+ -- Note that this list should match the list of units documented in the
+ -- "GNAT Library" section of the GNAT Reference Manual.
- -----------------------------------------------
- -- Ada Hierarchy Units from Reference Manual --
- -----------------------------------------------
+ Non_Imp_File_Names_95 : constant File_List := (
+
+ ------------------------------------------------------
+ -- Ada Hierarchy Units from Ada-83 Reference Manual --
+ ------------------------------------------------------
"a-astaco", -- Ada.Asynchronous_Task_Control
"a-calend", -- Ada.Calendar
"a-chlat1", -- Ada.Characters.Latin_1
"a-comlin", -- Ada.Command_Line
"a-decima", -- Ada.Decimal
- "a-direct", -- Ada.Directories
"a-direio", -- Ada.Direct_IO
"a-dynpri", -- Ada.Dynamic_Priorities
"a-except", -- Ada.Exceptions
-----------------------------------
"a-chlat9", -- Ada.Characters.Latin_9
+ "a-clrefi", -- Ada.Command_Line.Response_File
"a-colien", -- Ada.Command_Line.Environment
"a-colire", -- Ada.Command_Line.Remove
"a-cwila1", -- Ada.Characters.Wide_Latin_1
"a-cwila9", -- Ada.Characters.Wide_Latin_9
"a-diocst", -- Ada.Direct_IO.C_Streams
"a-einuoc", -- Ada.Exceptions.Is_Null_Occurrence
+ "a-elchha", -- Ada.Exceptions.Last_Chance_Handler
"a-exctra", -- Ada.Exceptions.Traceback
"a-siocst", -- Ada.Sequential_IO.C_Streams
"a-ssicst", -- Ada.Streams.Stream_IO.C_Streams
"a-tiocst", -- Ada.Text_IO.C_Streams
"a-wtcstr", -- Ada.Wide_Text_IO.C_Streams
+ -- Note: strictly the next two should be Ada 2005 units, but it seems
+ -- harmless (and useful) to make then available in Ada 95 mode, since
+ -- they only deal with Wide_Character, not Wide_Wide_Character.
+
+ "a-wichun", -- Ada.Wide_Characters.Unicode
+ "a-widcha", -- Ada.Wide_Characters
+
---------------------------
-- GNAT Special IO Units --
---------------------------
-- GNAT Library Units --
------------------------
+ "g-altive", -- GNAT.Altivec
+ "g-alvety", -- GNAT.Altivec.Vector_Types
+ "g-alvevi", -- GNAT.Altivec.Vector_Views
+ "g-alveop", -- GNAT.Altivec.Vector_Operations
+ "g-altcon", -- GNAT.Altivec.Conversions
"g-arrspl", -- GNAT.Array_Split
"g-awk ", -- GNAT.AWK
"g-boubuf", -- GNAT.Bounded_Buffers
"g-bubsor", -- GNAT.Bubble_Sort
"g-busora", -- GNAT.Bubble_Sort_A
"g-busorg", -- GNAT.Bubble_Sort_G
+ "g-bytswa", -- Gnat.Byte_Swapping
"g-calend", -- GNAT.Calendar
"g-casuti", -- GNAT.Case_Util
"g-catiio", -- GNAT.Calendar.Time_IO
"g-memdum", -- GNAT.Memory_Dump
"g-moreex", -- GNAT.Most_Recent_Exception
"g-os_lib", -- GNAT.Os_Lib
- "g-pehage", -- GNAT.Perfect_Hash.Generators
- "g-perhas", -- GNAT.Perfect_Hash
+ "g-pehage", -- GNAT.Perfect_Hash_Generators
"g-regexp", -- GNAT.Regexp
"g-regist", -- GNAT.Registry
"g-regpat", -- GNAT.Regpat
"g-semaph", -- GNAT.Semaphores
"g-sestin", -- GNAT.Secondary_Stack_Info
+ "g-sha1 ", -- GNAT.SHA1
"g-signal", -- GNAT.Signals
"g-socket", -- GNAT.Sockets
"g-souinf", -- GNAT.Source_Info
"g-thread", -- GNAT.Threads
"g-traceb", -- GNAT.Traceback
"g-trasym", -- GNAT.Traceback.Symbolic
+ "g-utf_32", -- GNAT.UTF_32
"g-wistsp", -- GNAT.Wide_String_Split
-----------------------------------------------------
"i-cexten", -- Interfaces.C.Extensions
"i-cpp ", -- Interfaces.CPP
"i-cstrea", -- Interfaces.C.Streams
- "i-jalaob", -- Interfaces.Java.Lang.Object
- "i-jalasy", -- Interfaces.Java.Lang.System
- "i-jalath", -- Interfaces.Java.Lang.Thread
"i-java ", -- Interfaces.Java
- "i-javlan", -- Interfaces.Java.Lang
- "i-os2err", -- Interfaces.Os2lib.Errors
- "i-os2lib", -- Interfaces.Os2lib
- "i-os2syn", -- Interfaces.Os2lib.Synchronization
- "i-os2thr", -- Interfaces.Os2lib.Threads
"i-pacdec", -- Interfaces.Packed_Decimal
- "i-vthrea", -- Interfaces.Vthreads
"i-vxwoio", -- Interfaces.VxWorks.IO
"i-vxwork", -- Interfaces.VxWorks
"s-addima", -- System.Address_Image
"s-assert", -- System.Assertions
"s-memory", -- System.Memory
+ "s-os_lib", -- System.Os_Lib
"s-parint", -- System.Partition_Interface
+ "s-pooglo", -- System.Pool_Global
+ "s-pooloc", -- System.Pool_Local
"s-restri", -- System.Restrictions
"s-rident", -- System.Rident
"s-tasinf", -- System.Task_Info
"s-wchcnv", -- System.Wch_Cnv
"s-wchcon"); -- System.Wch_Con
- -------------------------
- -- Implementation_Unit --
- -------------------------
+ --------------------
+ -- Ada 2005 Units --
+ --------------------
+
+ -- The following units should be used only in Ada 05 mode
+
+ Non_Imp_File_Names_05 : constant File_List := (
+
+ --------------------------------------------------------
+ -- Ada Hierarchy Units from Ada 2005 Reference Manual --
+ --------------------------------------------------------
+
+ "a-calari", -- Ada.Calendar.Arithmetic
+ "a-calfor", -- Ada.Calendar.Formatting
+ "a-catizo", -- Ada.Calendar.Time_Zones
+ "a-cdlili", -- Ada.Containers.Doubly_Linked_Lists
+ "a-cgarso", -- Ada.Containers.Generic_Array_Sort
+ "a-cgcaso", -- Ada.Containers.Generic_Constrained_Array_Sort
+ "a-chacon", -- Ada.Characters.Conversions
+ "a-cidlli", -- Ada.Containers.Indefinite_Doubly_Linked_Lists
+ "a-cihama", -- Ada.Containers.Indefinite_Hashed_Maps
+ "a-cihase", -- Ada.Containers.Indefinite_Hashed_Sets
+ "a-ciorma", -- Ada.Containers.Indefinite_Ordered_Maps
+ "a-ciorse", -- Ada.Containers.Indefinite_Ordered_Sets
+ "a-cohama", -- Ada.Containers.Hashed_Maps
+ "a-cohase", -- Ada.Containers.Hashed_Sets
+ "a-coinve", -- Ada.Containers.Indefinite_Vectors
+ "a-contai", -- Ada.Containers
+ "a-convec", -- Ada.Containers.Vectors
+ "a-coorma", -- Ada.Containers.Ordered_Maps
+ "a-coorse", -- Ada.Containers.Ordered_Sets
+ "a-coteio", -- Ada.Complex_Text_IO
+ "a-direct", -- Ada.Directories
+ "a-diroro", -- Ada.Dispatching.Round_Robin
+ "a-dispat", -- Ada.Dispatching
+ "a-envvar", -- Ada.Environment_Variables
+ "a-exetim", -- Ada.Execution_Time
+ "a-extiti", -- Ada.Execution_Time.Timers
+ "a-rttiev", -- Ada.Real_Time.Timing_Events
+ "a-ngcoar", -- Ada.Numerics.Generic_Complex_Arrays
+ "a-ngrear", -- Ada.Numerics.Generic_Real_Arrays
+ "a-nucoar", -- Ada.Numerics.Complex_Arrays
+ "a-nurear", -- Ada.Numerics.Real_Arrays
+ "a-stboha", -- Ada.Strings.Bounded.Hash
+ "a-stfiha", -- Ada.Strings.Fixed.Hash
+ "a-strhas", -- Ada.Strings.Hash
+ "a-stunha", -- Ada.Strings.Unbounded.Hash
+ "a-stwiha", -- Ada.Strings.Wide_Hash
+ "a-stzbou", -- Ada.Strings.Wide_Wide_Bounded
+ "a-stzfix", -- Ada.Strings.Wide_Wide_Fixed
+ "a-stzhas", -- Ada.Strings.Wide_Wide_Hash
+ "a-stzmap", -- Ada.Strings.Wide_Wide_Maps
+ "a-stzunb", -- Ada.Strings.Wide_Wide_Unbounded
+ "a-swbwha", -- Ada.Strings.Wide_Bounded.Wide_Hash
+ "a-swfwha", -- Ada.Strings.Wide_Fixed.Wide_Hash
+ "a-swuwha", -- Ada.Strings.Wide_Unbounded.Wide_Hash
+ "a-szbzha", -- Ada.Strings.Wide_Wide_Bounded.Wide_Wide_Hash
+ "a-szfzha", -- Ada.Strings.Wide_Wide_Fixed.Wide_Wide_Hash
+ "a-szmzco", -- Ada.Strings.Wide_Wide_Maps.Wide_Wide_Constants
+ "a-szuzha", -- Ada.Strings.Wide_Wide_Unbounded.Wide_Wide_Hash
+ "a-taster", -- Ada.Task_Termination
+ "a-tgdico", -- Ada.Tags.Generic_Dispatching_Constructor
+ "a-tiboio", -- Ada.Text_IO.Bounded_IO
+ "a-tiunio", -- Ada.Text_IO.Unbounded_IO
+ "a-wichun", -- Ada.Wide_Characters.Unicode
+ "a-wwboio", -- Ada.Wide_Text_IO.Wide_Bounded_IO
+ "a-wwunio", -- Ada.Wide_Text_IO.Wide_Unbounded_IO
+ "a-zchara", -- Ada.Wide_Wide_Characters
+ "a-ztcoio", -- Ada.Wide_Wide_Text_IO.Complex_IO
+ "a-ztedit", -- Ada.Wide_Wide_Text_IO.Editing
+ "a-zttest", -- Ada.Wide_Wide_Text_IO.Text_Streams
+ "a-ztexio", -- Ada.Wide_Wide_Text_IO
+ "a-zzboio", -- Ada.Wide_Wide_Text_IO.Wide_Wide_Bounded_IO
+ "a-zzunio", -- Ada.Wide_Wide_Text_IO.Wide_Wide_Unbounded_IO
+
+ ------------------------------------------------------
+ -- RM Required Additions to Ada 2005 for GNAT Types --
+ ------------------------------------------------------
+
+ "a-lcteio", -- Ada.Long_Complex_Text_IO
+ "a-lfztio", -- Ada.Long_Float_Wide_Wide_Text_IO
+ "a-liztio", -- Ada.Long_Integer_Wide_Wide_Text_IO
+ "a-llctio", -- Ada.Long_Long_Complex_Text_IO
+ "a-llfzti", -- Ada.Long_Long_Float_Wide_Wide_Text_IO
+ "a-llizti", -- Ada.Long_Long_Integer_Wide_Wide_Text_IO
+ "a-nlcoar", -- Ada.Numerics.Long_Complex_Arrays
+ "a-nllcar", -- Ada.Numerics.Long_Long_Complex_Arrays
+ "a-nllrar", -- Ada.Numerics.Long_Long_Real_Arrays
+ "a-nlrear", -- Ada.Numerics.Long_Real_Arrays
+ "a-scteio", -- Ada.Short_Complex_Text_IO
+ "a-sfztio", -- Ada.Short_Float_Wide_Wide_Text_IO
+ "a-siztio", -- Ada.Short_Integer_Wide_Wide_Text_IO
+ "a-ssizti", -- Ada.Short_Short_Integer_Wide_Wide_Text_IO
+ "a-ztcstr", -- Ada.Wide_Wide_Text_IO.C_Streams
+
+ ----------------------------------------
+ -- GNAT Defined Additions to Ada 2005 --
+ ----------------------------------------
+
+ "a-cgaaso", -- Ada.Containers.Generic_Anonymous_Array_Sort
+ "a-chzla1", -- Ada.Characters.Wide_Wide_Latin_1
+ "a-chzla9", -- Ada.Characters.Wide_Wide_Latin_9
+ "a-ciormu", -- Ada.Containers.Indefinite_Ordered_Multisets
+ "a-coormu", -- Ada.Containers.Ordered_Multisets
+ "a-crdlli", -- Ada.Containers.Restricted_Doubly_Linked_Lists
+ "a-secain", -- Ada.Strings.Equal_Case_Insensitive
+ "a-shcain", -- Ada.Strings.Hash_Case_Insensitive
+ "a-slcain", -- Ada.Strings.Less_Case_Insensitive
+ "a-szuzti", -- Ada.Strings.Wide_Wide_Unbounded.Wide_Wide_Text_IO
+ "a-zchuni", -- Ada.Wide_Wide_Characters.Unicode
- function Implementation_Unit (U : Unit_Number_Type) return Boolean is
- Fname : constant File_Name_Type := Unit_File_Name (U);
+ ---------------------------
+ -- GNAT Special IO Units --
+ ---------------------------
- begin
- -- All units are OK in GNAT mode
+ -- See Ada 95 section for further information. These packages are for the
+ -- implementation of the Wide_Wide_Text_IO generic packages.
- if GNAT_Mode then
- return False;
- end if;
+ "a-ztdeio", -- Ada.Wide_Wide_Text_IO.Decimal_IO
+ "a-ztenio", -- Ada.Wide_Wide_Text_IO.Enumeration_IO
+ "a-ztfiio", -- Ada.Wide_Wide_Text_IO.Fixed_IO
+ "a-ztflio", -- Ada.Wide_Wide_Text_IO.Float_IO
+ "a-ztinio", -- Ada.Wide_Wide_Text_IO.Integer_IO
+ "a-ztmoio", -- Ada.Wide_Wide_Text_IO.Modular_IO
+
+ ------------------------
+ -- GNAT Library Units --
+ ------------------------
+
+ "g-zstspl"); -- GNAT.Wide_Wide_String_Split
- -- If length of file name is greater than 12, definitely OK!
+ ----------------------
+ -- Get_Kind_Of_Unit --
+ ----------------------
+
+ function Get_Kind_Of_Unit (U : Unit_Number_Type) return Kind_Of_Unit is
+ Fname : constant File_Name_Type := Unit_File_Name (U);
+
+ begin
+ -- If length of file name is greater than 12, not predefined.
-- The value 12 here is an 8 char name with extension .ads.
if Length_Of_Name (Fname) > 12 then
- return False;
+ return Not_Predefined_Unit;
end if;
-- Otherwise test file name
Get_Name_String (Fname);
- -- Definitely OK if file name does not start with a- g- s- i-
+ -- Not predefined if file name does not start with a- g- s- i-
if Name_Len < 3
or else Name_Buffer (2) /= '-'
and then
Name_Buffer (1) /= 's')
then
- return False;
+ return Not_Predefined_Unit;
end if;
- -- Definitely OK if file name does not end in .ads. This can
+ -- Not predefined if file name does not end in .ads. This can
-- happen when non-standard file names are being used.
if Name_Buffer (Name_Len - 3 .. Name_Len) /= ".ads" then
- return False;
+ return Not_Predefined_Unit;
end if;
-- Otherwise normalize file name to 8 characters
Name_Buffer (Name_Len) := ' ';
end loop;
- -- Definitely OK if name is in list
+ -- See if name is in 95 list
+
+ for J in Non_Imp_File_Names_95'Range loop
+ if Name_Buffer (1 .. 8) = Non_Imp_File_Names_95 (J) then
+ return Ada_95_Unit;
+ end if;
+ end loop;
+
+ -- See if name is in 05 list
- for J in Non_Imp_File_Names'Range loop
- if Name_Buffer (1 .. 8) = Non_Imp_File_Names (J) then
- return False;
+ for J in Non_Imp_File_Names_05'Range loop
+ if Name_Buffer (1 .. 8) = Non_Imp_File_Names_05 (J) then
+ return Ada_05_Unit;
end if;
end loop;
- -- Only remaining special possibilities are children of
- -- System.RPC and System.Garlic and special files of the
- -- form System.Aux...
+ -- Only remaining special possibilities are children of System.RPC and
+ -- System.Garlic and special files of the form System.Aux...
Get_Name_String (Unit_Name (U));
if Name_Len > 12
and then Name_Buffer (1 .. 11) = "system.rpc."
then
- return False;
+ return Ada_95_Unit;
end if;
if Name_Len > 15
and then Name_Buffer (1 .. 14) = "system.garlic."
then
- return False;
+ return Ada_95_Unit;
end if;
if Name_Len > 11
and then Name_Buffer (1 .. 10) = "system.aux"
then
- return False;
+ return Ada_95_Unit;
end if;
-- All tests failed, this is definitely an implementation unit
- return True;
+ return Implementation_Unit;
+ end Get_Kind_Of_Unit;
+
+ -------------------
+ -- Is_Known_Unit --
+ -------------------
+
+ function Is_Known_Unit (Nam : Node_Id) return Boolean is
+ Unam : Unit_Name_Type;
+ Fnam : File_Name_Type;
- end Implementation_Unit;
+ begin
+ -- If selector is not an identifier (e.g. it is a character literal or
+ -- some junk from a previous error), then definitely not a known unit.
+
+ if Nkind (Selector_Name (Nam)) /= N_Identifier then
+ return False;
+ end if;
+
+ -- Otherwise get corresponding file name
+
+ Unam := Get_Unit_Name (Nam);
+ Fnam := Get_File_Name (Unam, Subunit => False);
+ Get_Name_String (Fnam);
+
+ -- Remove extension from file name
+
+ if Name_Buffer (Name_Len - 3 .. Name_Len) = ".adb" then
+ Name_Len := Name_Len - 4;
+ else
+ return False;
+ end if;
+
+ -- Pad name to 8 characters
+
+ while Name_Len < 8 loop
+ Name_Len := Name_Len + 1;
+ Name_Buffer (Name_Len) := ' ';
+ end loop;
+
+ -- If length more than 8, definitely not a match
+
+ if Name_Len /= 8 then
+ return False;
+ end if;
+
+ -- If length is 8, search our tables
+
+ for J in Non_Imp_File_Names_95'Range loop
+ if Name_Buffer (1 .. 8) = Non_Imp_File_Names_95 (J) then
+ return True;
+ end if;
+ end loop;
+
+ for J in Non_Imp_File_Names_05'Range loop
+ if Name_Buffer (1 .. 8) = Non_Imp_File_Names_05 (J) then
+ return True;
+ end if;
+ end loop;
+
+ -- If not found, not known
+
+ return False;
+
+ -- A safety guard, if we get an exception during this processing then it
+ -- is most likely the result of a previous error, or a peculiar case we
+ -- have not thought of. Since this routine is only used for error message
+ -- refinement, we will just return False.
+
+ exception
+ when others =>
+ return False;
+ end Is_Known_Unit;
end Impunit;