gcc/ada/prj.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                                  P R J                                   --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --             Copyright (C) 2001-2004 Free Software Foundation, Inc.       --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 with Ada.Characters.Handling; use Ada.Characters.Handling;
  28
  29 with Namet;    use Namet;
  30 with Osint;    use Osint;
  31 with Prj.Attr;
  32 with Prj.Com;
  33 with Prj.Env;
  34 with Prj.Err;  use Prj.Err;
  35 with Scans;    use Scans;
  36 with Snames;   use Snames;
  37 with Uintp;    use Uintp;
  38
  39 with GNAT.OS_Lib; use GNAT.OS_Lib;
  40
  41 package body Prj is
  42
  43    The_Empty_String : Name_Id;
  44
  45    subtype Known_Casing is Casing_Type range All_Upper_Case .. Mixed_Case;
  46
  47    The_Casing_Images : constant array (Known_Casing) of String_Access :=
  48      (All_Lower_Case => new String'("lowercase"),
  49       All_Upper_Case => new String'("UPPERCASE"),
  50       Mixed_Case     => new String'("MixedCase"));
  51
  52    Initialized : Boolean := False;
  53
  54    Standard_Dot_Replacement      : constant Name_Id :=
  55      First_Name_Id + Character'Pos ('-');
  56
  57    Std_Naming_Data : Naming_Data :=
  58      (Current_Language          => No_Name,
  59       Dot_Replacement           => Standard_Dot_Replacement,
  60       Dot_Repl_Loc              => No_Location,
  61       Casing                    => All_Lower_Case,
  62       Spec_Suffix               => No_Array_Element,
  63       Current_Spec_Suffix       => No_Name,
  64       Spec_Suffix_Loc           => No_Location,
  65       Body_Suffix               => No_Array_Element,
  66       Current_Body_Suffix       => No_Name,
  67       Body_Suffix_Loc           => No_Location,
  68       Separate_Suffix           => No_Name,
  69       Sep_Suffix_Loc            => No_Location,
  70       Specs                     => No_Array_Element,
  71       Bodies                    => No_Array_Element,
  72       Specification_Exceptions  => No_Array_Element,
  73       Implementation_Exceptions => No_Array_Element);
  74
  75    Project_Empty : constant Project_Data :=
  76      (Languages                      => No_Languages,
  77       Impl_Suffixes                  => No_Impl_Suffixes,
  78       First_Referred_By              => No_Project,
  79       Name                           => No_Name,
  80       Path_Name                      => No_Name,
  81       Display_Path_Name              => No_Name,
  82       Virtual                        => False,
  83       Location                       => No_Location,
  84       Mains                          => Nil_String,
  85       Directory                      => No_Name,
  86       Display_Directory              => No_Name,
  87       Dir_Path                       => null,
  88       Library                        => False,
  89       Library_Dir                    => No_Name,
  90       Display_Library_Dir            => No_Name,
  91       Library_Src_Dir                => No_Name,
  92       Display_Library_Src_Dir        => No_Name,
  93       Library_Name                   => No_Name,
  94       Library_Kind                   => Static,
  95       Lib_Internal_Name              => No_Name,
  96       Standalone_Library             => False,
  97       Lib_Interface_ALIs             => Nil_String,
  98       Lib_Auto_Init                  => False,
  99       Symbol_Data                    => No_Symbols,
 100       Ada_Sources_Present            => True,
 101       Other_Sources_Present          => True,
 102       Sources                        => Nil_String,
 103       First_Other_Source             => No_Other_Source,
 104       Last_Other_Source              => No_Other_Source,
 105       Imported_Directories_Switches  => null,
 106       Include_Path                   => null,
 107       Include_Data_Set               => False,
 108       Source_Dirs                    => Nil_String,
 109       Known_Order_Of_Source_Dirs     => True,
 110       Object_Directory               => No_Name,
 111       Display_Object_Dir             => No_Name,
 112       Exec_Directory                 => No_Name,
 113       Display_Exec_Dir               => No_Name,
 114       Extends                        => No_Project,
 115       Extended_By                    => No_Project,
 116       Naming                         => Std_Naming_Data,
 117       Decl                           => No_Declarations,
 118       Imported_Projects              => Empty_Project_List,
 119       Ada_Include_Path               => null,
 120       Ada_Objects_Path               => null,
 121       Include_Path_File              => No_Name,
 122       Objects_Path_File_With_Libs    => No_Name,
 123       Objects_Path_File_Without_Libs => No_Name,
 124       Config_File_Name               => No_Name,
 125       Config_File_Temp               => False,
 126       Config_Checked                 => False,
 127       Language_Independent_Checked   => False,
 128       Checked                        => False,
 129       Seen                           => False,
 130       Need_To_Build_Lib              => False,
 131       Depth                          => 0,
 132       Unkept_Comments                => False);
 133
 134    -------------------
 135    -- Add_To_Buffer --
 136    -------------------
 137
 138    procedure Add_To_Buffer (S : String) is
 139    begin
 140       --  If Buffer is too small, double its size
 141
 142       if Buffer_Last + S'Length > Buffer'Last then
 143          declare
 144             New_Buffer : constant  String_Access :=
 145                            new String (1 .. 2 * Buffer'Last);
 146
 147          begin
 148             New_Buffer (1 .. Buffer_Last) := Buffer (1 .. Buffer_Last);
 149             Free (Buffer);
 150             Buffer := New_Buffer;
 151          end;
 152       end if;
 153
 154       Buffer (Buffer_Last + 1 .. Buffer_Last + S'Length) := S;
 155       Buffer_Last := Buffer_Last + S'Length;
 156    end Add_To_Buffer;
 157
 158    -------------------
 159    -- Empty_Project --
 160    -------------------
 161
 162    function Empty_Project return Project_Data is
 163    begin
 164       Initialize;
 165       return Project_Empty;
 166    end Empty_Project;
 167
 168    ------------------
 169    -- Empty_String --
 170    ------------------
 171
 172    function Empty_String return Name_Id is
 173    begin
 174       return The_Empty_String;
 175    end Empty_String;
 176
 177    ------------
 178    -- Expect --
 179    ------------
 180
 181    procedure Expect (The_Token : Token_Type; Token_Image : String) is
 182    begin
 183       if Token /= The_Token then
 184          Error_Msg (Token_Image & " expected", Token_Ptr);
 185       end if;
 186    end Expect;
 187
 188    --------------------------------
 189    -- For_Every_Project_Imported --
 190    --------------------------------
 191
 192    procedure For_Every_Project_Imported
 193      (By         : Project_Id;
 194       With_State : in out State)
 195    is
 196
 197       procedure Check (Project : Project_Id);
 198       --  Check if a project has already been seen.
 199       --  If not seen, mark it as seen, call Action,
 200       --  and check all its imported projects.
 201
 202       procedure Check (Project : Project_Id) is
 203          List : Project_List;
 204
 205       begin
 206          if not Projects.Table (Project).Seen then
 207             Projects.Table (Project).Seen := True;
 208             Action (Project, With_State);
 209
 210             List := Projects.Table (Project).Imported_Projects;
 211             while List /= Empty_Project_List loop
 212                Check (Project_Lists.Table (List).Project);
 213                List := Project_Lists.Table (List).Next;
 214             end loop;
 215          end if;
 216       end Check;
 217
 218    begin
 219       for Project in Projects.First .. Projects.Last loop
 220          Projects.Table (Project).Seen := False;
 221       end loop;
 222
 223       Check (Project => By);
 224    end For_Every_Project_Imported;
 225
 226    -----------
 227    -- Image --
 228    -----------
 229
 230    function Image (Casing : Casing_Type) return String is
 231    begin
 232       return The_Casing_Images (Casing).all;
 233    end Image;
 234
 235    ----------------
 236    -- Initialize --
 237    ----------------
 238
 239    procedure Initialize is
 240    begin
 241       if not Initialized then
 242          Initialized := True;
 243          Uintp.Initialize;
 244          Name_Len := 0;
 245          The_Empty_String := Name_Find;
 246          Empty_Name := The_Empty_String;
 247          Name_Len := 4;
 248          Name_Buffer (1 .. 4) := ".ads";
 249          Default_Ada_Spec_Suffix := Name_Find;
 250          Name_Len := 4;
 251          Name_Buffer (1 .. 4) := ".adb";
 252          Default_Ada_Body_Suffix := Name_Find;
 253          Name_Len := 1;
 254          Name_Buffer (1) := '/';
 255          Slash := Name_Find;
 256
 257          for Lang in Programming_Language loop
 258             Name_Len := Lang_Names (Lang)'Length;
 259             Name_Buffer (1 .. Name_Len) := Lang_Names (Lang).all;
 260             Lang_Name_Ids (Lang) := Name_Find;
 261             Name_Len := Lang_Suffixes (Lang)'Length;
 262             Name_Buffer (1 .. Name_Len) := Lang_Suffixes (Lang).all;
 263             Lang_Suffix_Ids (Lang) := Name_Find;
 264          end loop;
 265
 266          Std_Naming_Data.Current_Spec_Suffix := Default_Ada_Spec_Suffix;
 267          Std_Naming_Data.Current_Body_Suffix := Default_Ada_Body_Suffix;
 268          Std_Naming_Data.Separate_Suffix     := Default_Ada_Body_Suffix;
 269          Register_Default_Naming_Scheme
 270            (Language            => Name_Ada,
 271             Default_Spec_Suffix => Default_Ada_Spec_Suffix,
 272             Default_Body_Suffix => Default_Ada_Body_Suffix);
 273          Prj.Env.Initialize;
 274          Prj.Attr.Initialize;
 275          Set_Name_Table_Byte (Name_Project,  Token_Type'Pos (Tok_Project));
 276          Set_Name_Table_Byte (Name_Extends,  Token_Type'Pos (Tok_Extends));
 277          Set_Name_Table_Byte (Name_External, Token_Type'Pos (Tok_External));
 278       end if;
 279    end Initialize;
 280
 281    ------------------------------------
 282    -- Register_Default_Naming_Scheme --
 283    ------------------------------------
 284
 285    procedure Register_Default_Naming_Scheme
 286      (Language            : Name_Id;
 287       Default_Spec_Suffix : Name_Id;
 288       Default_Body_Suffix : Name_Id)
 289    is
 290       Lang : Name_Id;
 291       Suffix : Array_Element_Id;
 292       Found : Boolean := False;
 293       Element : Array_Element;
 294
 295    begin
 296       --  Get the language name in small letters
 297
 298       Get_Name_String (Language);
 299       Name_Buffer (1 .. Name_Len) := To_Lower (Name_Buffer (1 .. Name_Len));
 300       Lang := Name_Find;
 301
 302       Suffix := Std_Naming_Data.Spec_Suffix;
 303       Found := False;
 304
 305       --  Look for an element of the spec sufix array indexed by the language
 306       --  name. If one is found, put the default value.
 307
 308       while Suffix /= No_Array_Element and then not Found loop
 309          Element := Array_Elements.Table (Suffix);
 310
 311          if Element.Index = Lang then
 312             Found := True;
 313             Element.Value.Value := Default_Spec_Suffix;
 314             Array_Elements.Table (Suffix) := Element;
 315
 316          else
 317             Suffix := Element.Next;
 318          end if;
 319       end loop;
 320
 321       --  If none can be found, create a new one.
 322
 323       if not Found then
 324          Element :=
 325            (Index     => Lang,
 326             Src_Index => 0,
 327             Index_Case_Sensitive => False,
 328             Value => (Project  => No_Project,
 329                       Kind     => Single,
 330                       Location => No_Location,
 331                       Default  => False,
 332                       Value    => Default_Spec_Suffix,
 333                       Index    => 0),
 334             Next  => Std_Naming_Data.Spec_Suffix);
 335          Array_Elements.Increment_Last;
 336          Array_Elements.Table (Array_Elements.Last) := Element;
 337          Std_Naming_Data.Spec_Suffix := Array_Elements.Last;
 338       end if;
 339
 340       Suffix := Std_Naming_Data.Body_Suffix;
 341       Found := False;
 342
 343       --  Look for an element of the body sufix array indexed by the language
 344       --  name. If one is found, put the default value.
 345
 346       while Suffix /= No_Array_Element and then not Found loop
 347          Element := Array_Elements.Table (Suffix);
 348
 349          if Element.Index = Lang then
 350             Found := True;
 351             Element.Value.Value := Default_Body_Suffix;
 352             Array_Elements.Table (Suffix) := Element;
 353
 354          else
 355             Suffix := Element.Next;
 356          end if;
 357       end loop;
 358
 359       --  If none can be found, create a new one.
 360
 361       if not Found then
 362          Element :=
 363            (Index     => Lang,
 364             Src_Index => 0,
 365             Index_Case_Sensitive => False,
 366             Value => (Project  => No_Project,
 367                       Kind     => Single,
 368                       Location => No_Location,
 369                       Default  => False,
 370                       Value    => Default_Body_Suffix,
 371                       Index    => 0),
 372             Next  => Std_Naming_Data.Body_Suffix);
 373          Array_Elements.Increment_Last;
 374          Array_Elements.Table (Array_Elements.Last) := Element;
 375          Std_Naming_Data.Body_Suffix := Array_Elements.Last;
 376       end if;
 377    end Register_Default_Naming_Scheme;
 378
 379    ------------
 380    --  Reset --
 381    ------------
 382
 383    procedure Reset is
 384    begin
 385       Projects.Init;
 386       Project_Lists.Init;
 387       Packages.Init;
 388       Arrays.Init;
 389       Variable_Elements.Init;
 390       String_Elements.Init;
 391       Prj.Com.Units.Init;
 392       Prj.Com.Units_Htable.Reset;
 393       Prj.Com.Files_Htable.Reset;
 394    end Reset;
 395
 396    ------------------------
 397    -- Same_Naming_Scheme --
 398    ------------------------
 399
 400    function Same_Naming_Scheme
 401      (Left, Right : Naming_Data)
 402       return        Boolean
 403    is
 404    begin
 405       return Left.Dot_Replacement = Right.Dot_Replacement
 406         and then Left.Casing = Right.Casing
 407         and then Left.Current_Spec_Suffix = Right.Current_Spec_Suffix
 408         and then Left.Current_Body_Suffix = Right.Current_Body_Suffix
 409         and then Left.Separate_Suffix = Right.Separate_Suffix;
 410    end Same_Naming_Scheme;
 411
 412    --------------------------
 413    -- Standard_Naming_Data --
 414    --------------------------
 415
 416    function Standard_Naming_Data return Naming_Data is
 417    begin
 418       Initialize;
 419       return Std_Naming_Data;
 420    end Standard_Naming_Data;
 421
 422    -----------
 423    -- Value --
 424    -----------
 425
 426    function Value (Image : String) return Casing_Type is
 427    begin
 428       for Casing in The_Casing_Images'Range loop
 429          if To_Lower (Image) = To_Lower (The_Casing_Images (Casing).all) then
 430             return Casing;
 431          end if;
 432       end loop;
 433
 434       raise Constraint_Error;
 435    end Value;
 436
 437 begin
 438    --  Make sure that the standard project file extension is compatible
 439    --  with canonical case file naming.
 440
 441    Canonical_Case_File_Name (Project_File_Extension);
 442 end Prj;