-- --
-- B o d y --
-- --
--- Copyright (C) 2000-2005 Free Software Foundation, Inc. --
+-- Copyright (C) 2000-2009, 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- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- 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. --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- 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 Atree; use Atree;
+with Errout; use Errout;
+with Sinfo; use Sinfo;
+with Fname.UF; use Fname.UF;
+with Lib; use Lib;
+with Namet; use Namet;
+with Uname; use Uname;
+
+-- Note: this package body is used by GPS and GNATBench to supply a list of
+-- entries for help on available library routines.
package body Impunit is
-- Ada 95 Units --
------------------
- -- The following is a giant string list containing the names of all
- -- non-implementation internal files, i.e. the complete list of files for
+ -- 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.
-- Note that this list should match the list of units documented in the
- -- "GNAT Library" section of the GNAT Reference Manual.
+ -- "GNAT Library" section of the GNAT Reference Manual. A unit listed here
+ -- must either be documented in that section or described in the Ada RM.
Non_Imp_File_Names_95 : constant File_List := (
-- GNAT Defined Additions to Ada --
-----------------------------------
+ "a-calcon", -- Ada.Calendar.Conversions
"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-ssicst", -- Ada.Streams.Stream_IO.C_Streams
"a-suteio", -- Ada.Strings.Unbounded.Text_IO
"a-swuwti", -- Ada.Strings.Wide_Unbounded.Wide_Text_IO
- "a-taidim", -- Ada.Task_Identification.Image
"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 --
---------------------------
- -- As further explained elsewhere (see Sem_Ch10), the internal
- -- packages of Text_IO and Wide_Text_IO are actually implemented
- -- as separate children, but this fact is intended to be hidden
- -- from the user completely. Any attempt to WITH one of these
- -- units will be diagnosed as an error later on, but for now we
- -- do not consider these internal implementation units (if we did,
- -- then we would get a junk warning which would be confusing and
- -- unecessary, given that we generate a clear error message).
+ -- As further explained elsewhere (see Sem_Ch10), the internal packages of
+ -- Text_IO and Wide_Text_IO are actually implemented as separate children,
+ -- but this fact is intended to be hidden from the user completely. Any
+ -- attempt to WITH one of these units will be diagnosed as an error later
+ -- on, but for now we do not consider these internal implementation units
+ -- (if we did, then we would get a junk warning which would be confusing
+ -- and unnecessary, given that we generate a clear error message).
"a-tideio", -- Ada.Text_IO.Decimal_IO
"a-tienio", -- Ada.Text_IO.Enumeration_IO
-- GNAT Library Units --
------------------------
+ "g-altive", -- GNAT.Altivec
+ "g-altcon", -- GNAT.Altivec.Conversions
+ "g-alveop", -- GNAT.Altivec.Vector_Operations
+ "g-alvety", -- GNAT.Altivec.Vector_Types
+ "g-alvevi", -- GNAT.Altivec.Vector_Views
"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-byorma", -- GNAT.Byte_Order_Mark
+ "g-bytswa", -- GNAT.Byte_Swapping
"g-calend", -- GNAT.Calendar
- "g-casuti", -- GNAT.Case_Util
"g-catiio", -- GNAT.Calendar.Time_IO
+ "g-casuti", -- GNAT.Case_Util
"g-cgi ", -- GNAT.CGI
"g-cgicoo", -- GNAT.CGI.Cookie
"g-cgideb", -- GNAT.CGI.Debug
"g-curexc", -- GNAT.Current_Exception
"g-debpoo", -- GNAT.Debug_Pools
"g-debuti", -- GNAT.Debug_Utilities
- "g-diopit", -- GNAT.Directory_Operations.Iteration
+ "g-decstr", -- GNAT.Decode_String
+ "g-deutst", -- GNAT.Decode_UTF8_String
"g-dirope", -- GNAT.Directory_Operations
+ "g-diopit", -- GNAT.Directory_Operations.Iteration
"g-dynhta", -- GNAT.Dynamic_HTables
"g-dyntab", -- GNAT.Dynamic_Tables
+ "g-encstr", -- GNAT.Encode_String
+ "g-enutst", -- GNAT.Encode_UTF8_String
"g-excact", -- GNAT.Exception_Actions
"g-except", -- GNAT.Exceptions
"g-exctra", -- GNAT.Exception_Traces
"g-moreex", -- GNAT.Most_Recent_Exception
"g-os_lib", -- GNAT.Os_Lib
"g-pehage", -- GNAT.Perfect_Hash_Generators
+ "g-rannum", -- GNAT.Random_Numbers
"g-regexp", -- GNAT.Regexp
"g-regist", -- GNAT.Registry
"g-regpat", -- GNAT.Regpat
"g-semaph", -- GNAT.Semaphores
+ "g-sercom", -- GNAT.Serial_Communications
"g-sestin", -- GNAT.Secondary_Stack_Info
+ "g-sha1 ", -- GNAT.SHA1
+ "g-sha224", -- GNAT.SHA224
+ "g-sha256", -- GNAT.SHA256
+ "g-sha384", -- GNAT.SHA384
+ "g-sha512", -- GNAT.SHA512
"g-signal", -- GNAT.Signals
"g-socket", -- GNAT.Sockets
"g-souinf", -- GNAT.Source_Info
"g-speche", -- GNAT.Spell_Checker
- "g-spipat", -- GNAT.Spitbol.Patterns
+ "g-spchge", -- GNAT.Spell_Checker_Generic
"g-spitbo", -- GNAT.Spitbol
+ "g-spipat", -- GNAT.Spitbol.Patterns
"g-sptabo", -- GNAT.Spitbol.Table_Boolean
"g-sptain", -- GNAT.Spitbol.Table_Integer
"g-sptavs", -- GNAT.Spitbol.Table_Vstring
"g-string", -- GNAT.Strings
"g-strspl", -- GNAT.String_Split
+ "g-sse ", -- GNAT.SSE
+ "g-ssvety", -- GNAT.SSE.Vector_Types
"g-table ", -- GNAT.Table
"g-tasloc", -- GNAT.Task_Lock
"g-thread", -- GNAT.Threads
+ "g-timsta", -- GNAT.Time_Stamp
"g-traceb", -- GNAT.Traceback
"g-trasym", -- GNAT.Traceback.Symbolic
+ "g-utf_32", -- GNAT.UTF_32
+ "g-u3spch", -- GNAT.UTF_32_Spelling_Checker
+ "g-wispch", -- GNAT.Wide_Spelling_Checker
"g-wistsp", -- GNAT.Wide_String_Split
-----------------------------------------------------
------------------------------------------
"i-cexten", -- Interfaces.C.Extensions
+ "i-cil ", -- Interfaces.CIL
+ "i-cilobj", -- Interfaces.CIL.Object
"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-javjni", -- Interfaces.Java.JNI
"i-pacdec", -- Interfaces.Packed_Decimal
- "i-vthrea", -- Interfaces.Vthreads
"i-vxwoio", -- Interfaces.VxWorks.IO
"i-vxwork", -- Interfaces.VxWorks
"s-pooloc", -- System.Pool_Local
"s-restri", -- System.Restrictions
"s-rident", -- System.Rident
+ "s-ststop", -- System.Strings.Stream_Ops
"s-tasinf", -- System.Task_Info
"s-wchcnv", -- System.Wch_Cnv
"s-wchcon"); -- System.Wch_Con
-- Ada Hierarchy Units from Ada 2005 Reference Manual --
--------------------------------------------------------
+ "a-assert", -- Ada.Assertions
+ "a-calari", -- Ada.Calendar.Arithmetic
+ "a-calfor", -- Ada.Calendar.Formatting
+ "a-catizo", -- Ada.Calendar.Time_Zones
"a-cdlili", -- Ada.Containers.Doubly_Linked_Lists
- "a-cgaaso", -- Ada.Containers.Generic_Anonymous_Array_Sort
"a-cgarso", -- Ada.Containers.Generic_Array_Sort
"a-cgcaso", -- Ada.Containers.Generic_Constrained_Array_Sort
- "a-chtgke", -- Ada.Containers.Hash_Tables.Generic_Keys
- "a-chtgop", -- Ada.Containers.Hash_Tables.Generic_Operations
+ "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-ciormu", -- Ada.Containers.Indefinite_Ordered_Multisets
"a-ciorse", -- Ada.Containers.Indefinite_Ordered_Sets
"a-cohama", -- Ada.Containers.Hashed_Maps
"a-cohase", -- Ada.Containers.Hashed_Sets
- "a-cohata", -- Ada.Containers.Hash_Tables
"a-coinve", -- Ada.Containers.Indefinite_Vectors
"a-contai", -- Ada.Containers
"a-convec", -- Ada.Containers.Vectors
"a-coorma", -- Ada.Containers.Ordered_Maps
- "a-coormu", -- Ada.Containers.Ordered_Multisets
"a-coorse", -- Ada.Containers.Ordered_Sets
- "a-coprnu", -- Ada.Containers.Prime_Numbers
- "a-crbltr", -- Ada.Containers.Red_Black_Trees
- "a-crbtgk", -- Ada.Containers.Red_Black_Trees.Generic_Keys
- "a-crbtgo", -- Ada.Containers.Red_Black_Trees.Generic_Operations
+ "a-coteio", -- Ada.Complex_Text_IO
"a-direct", -- Ada.Directories
- "a-rbtgso", -- Ada.Containers.Red_Black_Trees.Generic_Set_Operations
- "a-secain", -- Ada.Strings.Equal_Case_Insensitive
- "a-shcain", -- Ada.Strings.Hash_Case_Insensitive
- "a-slcain", -- Ada.Strings.Less_Case_Insensitive
+ "a-diroro", -- Ada.Dispatching.Round_Robin
+ "a-disedf", -- Ada.Dispatching.EDF
+ "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-stzhas", -- Ada.Strings.Wide_Wide_Hash
"a-stzmap", -- Ada.Strings.Wide_Wide_Maps
"a-stzunb", -- Ada.Strings.Wide_Wide_Unbounded
- "a-swunha", -- Ada.Strings.Wide_Unbounded.Hash
- "a-szmzco", -- Ada.Strings.Wide_Wide_Maps.Wide_Wide_Constants;
- "a-szunha", -- Ada.Strings.Wide_Wide_Unbounded.Hash
- "a-tiunio", -- Ada.Text_IO.Unbounded_IO;
- "a-wwunio", -- Ada.Wide_Text_IO.Wide_Unbounded_IO;
+ "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
-- 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
---------------------------
-- GNAT Special IO Units --
-- GNAT Library Units --
------------------------
+ "g-zspche", -- GNAT.Wide_Wide_Spelling_Checker
"g-zstspl"); -- GNAT.Wide_Wide_String_Split
+ -----------------------
+ -- Alternative Units --
+ -----------------------
+
+ -- For some implementation units, there is a unit in the GNAT library
+ -- that has identical functionality that is usable. If we have such a
+ -- case we record the appropriate Unit name in Error_Msg_String.
+
+ type Aunit_Record is record
+ Fname : String (1 .. 6);
+ Aname : String_Ptr;
+ end record;
+
+ -- Array of alternative unit names
+
+ Scasuti : aliased String := "GNAT.Case_Util";
+ Sos_lib : aliased String := "GNAT.OS_Lib";
+ Sregexp : aliased String := "GNAT.Regexp";
+ Sregpat : aliased String := "GNAT.Regpat";
+ Sstring : aliased String := "GNAT.Strings";
+ Sstusta : aliased String := "GNAT.Task_Stack_Usage";
+ Stasloc : aliased String := "GNAT.Task_Lock";
+ Sutf_32 : aliased String := "GNAT.UTF_32";
+
+ -- Array giving mapping
+
+ Map_Array : constant array (1 .. 8) of Aunit_Record := (
+ ("casuti", Scasuti'Access),
+ ("os_lib", Sos_lib'Access),
+ ("regexp", Sregexp'Access),
+ ("regpat", Sregpat'Access),
+ ("string", Sstring'Access),
+ ("stusta", Sstusta'Access),
+ ("tasloc", Stasloc'Access),
+ ("utf_32", Sutf_32'Access));
+
----------------------
-- Get_Kind_Of_Unit --
----------------------
Fname : constant File_Name_Type := Unit_File_Name (U);
begin
+ Error_Msg_Strlen := 0;
+
-- If length of file name is greater than 12, not predefined.
-- The value 12 here is an 8 char name with extension .ads.
return Ada_95_Unit;
end if;
- -- All tests failed, this is definitely an implementation unit
+ -- All tests failed, this is definitely an implementation unit. See if
+ -- we have an alternative name.
+
+ Get_Name_String (Fname);
+
+ if Name_Len = 12
+ and then Name_Buffer (1 .. 2) = "s-"
+ and then Name_Buffer (9 .. 12) = ".ads"
+ then
+ for J in Map_Array'Range loop
+ if Name_Buffer (3 .. 8) = Map_Array (J).Fname then
+ Error_Msg_Strlen := Map_Array (J).Aname'Length;
+ Error_Msg_String (1 .. Error_Msg_Strlen) :=
+ Map_Array (J).Aname.all;
+ end if;
+ end loop;
+ end if;
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;
+
+ 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;
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