| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- I M P U N I T -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- $Revision$ |
| -- -- |
| -- Copyright (C) 2000-2001 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- -- |
| -- 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. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with Lib; use Lib; |
| with Namet; use Namet; |
| with Opt; use Opt; |
| |
| 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. |
| |
| -- Note that this list should match the list of units documented in |
| -- the "GNAT Library" section of the GNAT Reference Manual. |
| |
| Non_Imp_File_Names : File_List := ( |
| |
| ----------------------------------------------- |
| -- Ada Hierarchy Units from 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-nltcty", -- 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-colire", -- Ada.Command_Line.Remove |
| "a-cwila1", -- Ada.Characters.Wide_Latin_1 |
| "a-diocst", -- Ada.Direct_IO.C_Streams |
| "a-einuoc", -- Ada.Exceptions.Is_Null_Occurrence |
| "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-taidim", -- Ada.Task_Identification.Image |
| "a-tiocst", -- Ada.Text_IO.C_Streams |
| "a-wtcstr", -- Ada.Wide_Text_IO.C_Streams |
| |
| --------------------------- |
| -- 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). |
| |
| "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-awk ", -- GNAT.AWK |
| "g-busora", -- GNAT.Bubble_Sort_A |
| "g-busorg", -- GNAT.Bubble_Sort_G |
| "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-crc32 ", -- GNAT.CRC32 |
| "g-curexc", -- GNAT.Current_Exception |
| "g-debpoo", -- GNAT.Debug_Pools |
| "g-debuti", -- GNAT.Debug_Utilities |
| "g-diopit", -- GNAT.Directory_Operations.Iteration |
| "g-dirope", -- GNAT.Directory_Operations |
| "g-dyntab", -- GNAT.Dynamic_Tables |
| "g-exctra", -- GNAT.Exception_Traces |
| "g-expect", -- GNAT.Expect |
| "g-flocon", -- GNAT.Float_Control |
| "g-htable", -- GNAT.Htable |
| "g-hesora", -- GNAT.Heap_Sort_A |
| "g-hesorg", -- GNAT.Heap_Sort_G |
| "g-io ", -- GNAT.IO |
| "g-io_aux", -- GNAT.IO_Aux |
| "g-locfil", -- GNAT.Lock_Files |
| "g-moreex", -- GNAT.Most_Recent_Exception |
| "g-os_lib", -- GNAT.Os_Lib |
| "g-regexp", -- GNAT.Regexp |
| "g-regist", -- GNAT.Registry |
| "g-regpat", -- GNAT.Regpat |
| "g-socket", -- GNAT.Sockets |
| "g-sptabo", -- GNAT.Spitbol.Table_Boolean |
| "g-sptain", -- GNAT.Spitbol.Table_Integer |
| "g-sptavs", -- GNAT.Spitbol.Table_Vstring |
| "g-souinf", -- GNAT.Source_Info |
| "g-speche", -- GNAT.Spell_Checker |
| "g-spitbo", -- GNAT.Spitbol |
| "g-spipat", -- GNAT.Spitbol.Patterns |
| "g-table ", -- GNAT.Table |
| "g-tasloc", -- GNAT.Task_Lock |
| "g-thread", -- GNAT.Threads |
| "g-traceb", -- GNAT.Traceback |
| "g-trasym", -- GNAT.Traceback.Symbolic |
| |
| ----------------------------------------------------- |
| -- 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-csthre", -- Interfaces.C.Sthreads |
| "i-cstrea", -- Interfaces.C.Streams |
| "i-cpp ", -- Interfaces.CPP |
| "i-java ", -- Interfaces.Java |
| "i-javlan", -- Interfaces.Java.Lang |
| "i-jalaob", -- Interfaces.Java.Lang.Object |
| "i-jalasy", -- Interfaces.Java.Lang.System |
| "i-jalath", -- Interfaces.Java.Lang.Thread |
| "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-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-parint", -- System.Partition_Interface |
| "s-tasinf", -- System.Task_Info |
| "s-wchcnv", -- System.Wch_Cnv |
| "s-wchcon"); -- System.Wch_Con |
| |
| ------------------------- |
| -- Implementation_Unit -- |
| ------------------------- |
| |
| function Implementation_Unit (U : Unit_Number_Type) return Boolean is |
| Fname : constant File_Name_Type := Unit_File_Name (U); |
| |
| begin |
| -- All units are OK in GNAT mode |
| |
| if GNAT_Mode then |
| return False; |
| end if; |
| |
| -- If length of file name is greater than 12, definitely OK! |
| -- The value 12 here is an 8 char name with extension .ads. |
| |
| if Length_Of_Name (Fname) > 12 then |
| return False; |
| end if; |
| |
| -- Otherwise test file name |
| |
| Get_Name_String (Fname); |
| |
| -- Definitely OK 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 False; |
| end if; |
| |
| -- Definitely OK 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; |
| 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; |
| |
| -- Definitely OK if name is in list |
| |
| for J in Non_Imp_File_Names'Range loop |
| if Name_Buffer (1 .. 8) = Non_Imp_File_Names (J) then |
| return False; |
| 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 False; |
| end if; |
| |
| if Name_Len > 15 |
| and then Name_Buffer (1 .. 14) = "system.garlic." |
| then |
| return False; |
| end if; |
| |
| if Name_Len > 11 |
| and then Name_Buffer (1 .. 10) = "system.aux" |
| then |
| return False; |
| end if; |
| |
| -- All tests failed, this is definitely an implementation unit |
| |
| return True; |
| |
| end Implementation_Unit; |
| |
| end Impunit; |
