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|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- I M P U N I T --
-- --
-- B o d y --
-- --
-- Copyright (C) 2000-2008, 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 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 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 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;
-- 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
subtype File_Name_8 is String (1 .. 8);
type File_List is array (Nat range <>) of File_Name_8;
------------------
-- 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
-- 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. 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 := (
------------------------------------------------------
-- Ada Hierarchy Units from Ada-83 Reference Manual --
------------------------------------------------------
"a-astaco", -- Ada.Asynchronous_Task_Control
"a-calend", -- Ada.Calendar
"a-chahan", -- Ada.Characters.Handling
"a-charac", -- Ada.Characters
"a-chlat1", -- Ada.Characters.Latin_1
"a-comlin", -- Ada.Command_Line
"a-decima", -- Ada.Decimal
"a-direio", -- Ada.Direct_IO
"a-dynpri", -- Ada.Dynamic_Priorities
"a-except", -- Ada.Exceptions
"a-finali", -- Ada.Finalization
"a-flteio", -- Ada.Float_Text_IO
"a-fwteio", -- Ada.Float_Wide_Text_IO
"a-inteio", -- Ada.Integer_Text_IO
"a-interr", -- Ada.Interrupts
"a-intnam", -- Ada.Interrupts.Names
"a-ioexce", -- Ada.IO_Exceptions
"a-iwteio", -- Ada.Integer_Wide_Text_IO
"a-ncelfu", -- Ada.Numerics.Complex_Elementary_Functions
"a-ngcefu", -- Ada.Numerics.Generic_Complex_Elementary_Functions
"a-ngcoty", -- Ada.Numerics.Generic_Complex_Types
"a-ngelfu", -- Ada.Numerics.Generic_Elementary_Functions
"a-nucoty", -- Ada.Numerics.Complex_Types
"a-nudira", -- Ada.Numerics.Discrete_Random
"a-nuelfu", -- Ada.Numerics.Elementary_Functions
"a-nuflra", -- Ada.Numerics.Float_Random
"a-numeri", -- Ada.Numerics
"a-reatim", -- Ada.Real_Time
"a-sequio", -- Ada.Sequential_IO
"a-stmaco", -- Ada.Strings.Maps.Constants
"a-storio", -- Ada.Storage_IO
"a-strbou", -- Ada.Strings.Bounded
"a-stream", -- Ada.Streams
"a-strfix", -- Ada.Strings.Fixed
"a-string", -- Ada.Strings
"a-strmap", -- Ada.Strings.Maps
"a-strunb", -- Ada.Strings.Unbounded
"a-ststio", -- Ada.Streams.Stream_IO
"a-stwibo", -- Ada.Strings.Wide_Bounded
"a-stwifi", -- Ada.Strings.Wide_Fixed
"a-stwima", -- Ada.Strings.Wide_Maps
"a-stwiun", -- Ada.Strings.Wide_Unbounded
"a-swmwco", -- Ada.Strings.Wide_Maps.Wide_Constants
"a-sytaco", -- Ada.Synchronous_Task_Control
"a-tags ", -- Ada.Tags
"a-tasatt", -- Ada.Task_Attributes
"a-taside", -- Ada.Task_Identification
"a-teioed", -- Ada.Text_IO.Editing
"a-textio", -- Ada.Text_IO
"a-ticoio", -- Ada.Text_IO.Complex_IO
"a-titest", -- Ada.Text_IO.Text_Streams
"a-unccon", -- Ada.Unchecked_Conversion
"a-uncdea", -- Ada.Unchecked_Deallocation
"a-witeio", -- Ada.Wide_Text_IO
"a-wtcoio", -- Ada.Wide_Text_IO.Complex_IO
"a-wtedit", -- Ada.Wide_Text_IO.Editing
"a-wttest", -- Ada.Wide_Text_IO.Text_Streams
-------------------------------------------------
-- RM Required Additions to Ada for GNAT Types --
-------------------------------------------------
"a-lfteio", -- Ada.Long_Float_Text_IO
"a-lfwtio", -- Ada.Long_Float_Wide_Text_IO
"a-liteio", -- Ada.Long_Integer_Text_IO
"a-liwtio", -- Ada.Long_Integer_Wide_Text_IO
"a-llftio", -- Ada.Long_Long_Float_Text_IO
"a-llfwti", -- Ada.Long_Long_Float_Wide_Text_IO
"a-llitio", -- Ada.Long_Long_Integer_Text_IO
"a-lliwti", -- Ada.Long_Long_Integer_Wide_Text_IO
"a-nlcefu", -- Ada.Long_Complex_Elementary_Functions
"a-nlcoty", -- Ada.Numerics.Long_Complex_Types
"a-nlelfu", -- Ada.Numerics.Long_Elementary_Functions
"a-nllcef", -- Ada.Long_Long_Complex_Elementary_Functions
"a-nllefu", -- Ada.Numerics.Long_Long_Elementary_Functions
"a-nllcty", -- Ada.Numerics.Long_Long_Complex_Types
"a-nscefu", -- Ada.Short_Complex_Elementary_Functions
"a-nscoty", -- Ada.Numerics.Short_Complex_Types
"a-nselfu", -- Ada.Numerics.Short_Elementary_Functions
"a-sfteio", -- Ada.Short_Float_Text_IO
"a-sfwtio", -- Ada.Short_Float_Wide_Text_IO
"a-siteio", -- Ada.Short_Integer_Text_IO
"a-siwtio", -- Ada.Short_Integer_Wide_Text_IO
"a-ssitio", -- Ada.Short_Short_Integer_Text_IO
"a-ssiwti", -- Ada.Short_Short_Integer_Wide_Text_IO
-----------------------------------
-- 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-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-suteio", -- Ada.Strings.Unbounded.Text_IO
"a-swuwti", -- Ada.Strings.Wide_Unbounded.Wide_Text_IO
"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 unnecessary, given that we generate a clear error message).
"a-tideio", -- Ada.Text_IO.Decimal_IO
"a-tienio", -- Ada.Text_IO.Enumeration_IO
"a-tifiio", -- Ada.Text_IO.Fixed_IO
"a-tiflio", -- Ada.Text_IO.Float_IO
"a-tiinio", -- Ada.Text_IO.Integer_IO
"a-tiinio", -- Ada.Text_IO.Integer_IO
"a-timoio", -- Ada.Text_IO.Modular_IO
"a-wtdeio", -- Ada.Wide_Text_IO.Decimal_IO
"a-wtenio", -- Ada.Wide_Text_IO.Enumeration_IO
"a-wtfiio", -- Ada.Wide_Text_IO.Fixed_IO
"a-wtflio", -- Ada.Wide_Text_IO.Float_IO
"a-wtinio", -- Ada.Wide_Text_IO.Integer_IO
"a-wtmoio", -- Ada.Wide_Text_IO.Modular_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-boumai", -- GNAT.Bounded_Mailboxes
"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-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-comlin", -- GNAT.Command_Line
"g-comver", -- GNAT.Compiler_Version
"g-crc32 ", -- GNAT.CRC32
"g-ctrl_c", -- GNAT.Ctrl_C
"g-curexc", -- GNAT.Current_Exception
"g-debpoo", -- GNAT.Debug_Pools
"g-debuti", -- GNAT.Debug_Utilities
"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-expect", -- GNAT.Expect
"g-flocon", -- GNAT.Float_Control
"g-heasor", -- GNAT.Heap_Sort
"g-hesora", -- GNAT.Heap_Sort_A
"g-hesorg", -- GNAT.Heap_Sort_G
"g-htable", -- GNAT.Htable
"g-io ", -- GNAT.IO
"g-io_aux", -- GNAT.IO_Aux
"g-locfil", -- GNAT.Lock_Files
"g-md5 ", -- GNAT.MD5
"g-memdum", -- GNAT.Memory_Dump
"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-signal", -- GNAT.Signals
"g-socket", -- GNAT.Sockets
"g-souinf", -- GNAT.Source_Info
"g-speche", -- GNAT.Spell_Checker
"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-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
-----------------------------------------------------
-- Interface Hierarchy Units from Reference Manual --
-----------------------------------------------------
"i-c ", -- Interfaces.C
"i-cobol ", -- Interfaces.Cobol
"i-cpoint", -- Interfaces.C.Pointers
"i-cstrin", -- Interfaces.C.Strings
"i-fortra", -- Interfaces.Fortran
------------------------------------------
-- GNAT Defined Additions to Interfaces --
------------------------------------------
"i-cexten", -- Interfaces.C.Extensions
"i-cpp ", -- Interfaces.CPP
"i-cstrea", -- Interfaces.C.Streams
"i-java ", -- Interfaces.Java
"i-javjni", -- Interfaces.Java.JNI
"i-pacdec", -- Interfaces.Packed_Decimal
"i-vxwoio", -- Interfaces.VxWorks.IO
"i-vxwork", -- Interfaces.VxWorks
--------------------------------------------------
-- System Hierarchy Units from Reference Manual --
--------------------------------------------------
"s-atacco", -- System.Address_To_Access_Conversions
"s-maccod", -- System.Machine_Code
"s-rpc ", -- System.Rpc
"s-stoele", -- System.Storage_Elements
"s-stopoo", -- System.Storage_Pools
--------------------------------------
-- GNAT Defined Additions to System --
--------------------------------------
"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-ststop", -- System.Strings.Stream_Ops
"s-tasinf", -- System.Task_Info
"s-wchcnv", -- System.Wch_Cnv
"s-wchcon"); -- System.Wch_Con
--------------------
-- 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-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-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-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-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
---------------------------
-- GNAT Special IO Units --
---------------------------
-- See Ada 95 section for further information. These packages are for the
-- implementation of the Wide_Wide_Text_IO generic packages.
"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-zspche", -- GNAT.Wide_Wide_Spelling_Checker
"g-zstspl"); -- GNAT.Wide_Wide_String_Split
----------------------
-- 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 Not_Predefined_Unit;
end if;
-- Otherwise test file name
Get_Name_String (Fname);
-- Not predefined if file name does not start with a- g- s- i-
if Name_Len < 3
or else Name_Buffer (2) /= '-'
or else (Name_Buffer (1) /= 'a'
and then
Name_Buffer (1) /= 'g'
and then
Name_Buffer (1) /= 'i'
and then
Name_Buffer (1) /= 's')
then
return Not_Predefined_Unit;
end if;
-- 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 Not_Predefined_Unit;
end if;
-- Otherwise normalize file name to 8 characters
Name_Len := Name_Len - 4;
while Name_Len < 8 loop
Name_Len := Name_Len + 1;
Name_Buffer (Name_Len) := ' ';
end loop;
-- 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_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...
Get_Name_String (Unit_Name (U));
if Name_Len > 12
and then Name_Buffer (1 .. 11) = "system.rpc."
then
return Ada_95_Unit;
end if;
if Name_Len > 15
and then Name_Buffer (1 .. 14) = "system.garlic."
then
return Ada_95_Unit;
end if;
if Name_Len > 11
and then Name_Buffer (1 .. 10) = "system.aux"
then
return Ada_95_Unit;
end if;
-- All tests failed, this is definitely an implementation unit
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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