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|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- F E A T U R E S --
-- --
-- B o d y --
-- --
-- $Revision: 1.18 $ --
-- --
-- Copyright (C) 1992-1997 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 Alloc;
with Csets; use Csets;
with Hostparm;
with Lib; use Lib;
with Namet; use Namet;
with Opt; use Opt;
with Output; use Output;
with Sinput; use Sinput;
with Uname; use Uname;
with Table;
with GNAT.Heap_Sort_A; use GNAT.Heap_Sort_A;
package body Features is
-- Data structures used to record feature references. Note that the entry
-- with index zero is used only as a temporary for the sort routine.
type Feature_Ref is record
F : Feature_Name;
L : Source_Ptr;
end record;
package Feature_List is new Table.Table (
Table_Component_Type => Feature_Ref,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => Alloc.Feature_List_Initial,
Table_Increment => Alloc.Feature_List_Increment,
Table_Name => "Feature_List");
-- Data structures used to record with'ed units. Note that the entry
-- with index zero is used only as a temporary for the sort routine.
type With_Ref is record
U : Unit_Name_Type;
L : Source_Ptr;
end record;
package With_List is new Table.Table (
Table_Component_Type => With_Ref,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => Alloc.With_List_Initial,
Table_Increment => Alloc.With_List_Increment,
Table_Name => "With_List");
-- Other global data
Multiple_Files : Boolean := False;
-- Set to True if references for more than one file are
Last_Index : Source_File_Index := No_Source_File;
-- Set to source table index of last file for which a reference was output.
-- Used in multiple file case only, not set or read otherwise.
-----------------------
-- Local Subprograms --
-----------------------
function Lt_Feature (Op1, Op2 : Natural) return Boolean;
-- Comparison routine for comparing Feature_List table entries
function Lt_Slocs (Op1, Op2 : Source_Ptr) return Boolean;
-- Comparison routine used to compare two Sloc values to determine
-- the order in which the references should be output in the table.
function Lt_Units (Op1, Op2 : Unit_Name_Type) return Boolean;
-- Comparison routine for comparing two unit numbers, by alphabetical
-- comparison of the corresponding unit names.
function Lt_With (Op1, Op2 : Natural) return Boolean;
-- Comparison routine for comparing Feature_List table entries
procedure Move_Feature (From : Natural; To : Natural);
-- Move routine for sorting the Feature_List table
procedure Move_With (From : Natural; To : Natural);
-- Move routine for sorting the With_List table
procedure Write_Ref (L : Source_Ptr);
-- Writes a single reference dealing with lining up columns nicely
--------------
-- Finalize --
--------------
procedure Finalize is
Index : Natural;
begin
if not Features_On then
return;
end if;
Write_Eol;
-- Output features list
if Feature_List.Last = 0 then
Write_Str ("No use of Ada 95 features recorded");
Write_Eol;
else
-- If entries present, first sort them
Sort (Feature_List.Last, Move_Feature'Access, Lt_Feature'Access);
-- Then remove duplicate entries, which can arise from multiple
-- recording of the same use in different parts of the compiler.
declare
N : Natural := 1;
begin
for J in 2 .. Feature_List.Last loop
if Feature_List.Table (J) /= Feature_List.Table (J - 1) then
N := N + 1;
Feature_List.Table (N) := Feature_List.Table (J);
end if;
end loop;
Feature_List.Set_Last (N);
end;
-- Now generate output listing
Write_Str ("Use of Ada 95 Features");
-- Loop through features in table
Index := 1;
Features_Loop : loop
declare
F : constant Feature_Name := Feature_List.Table (Index).F;
S : String := Feature_Name'Image (F);
begin
Write_Eol;
Write_Eol;
Write_Str (Code_Names (F));
Write_Char (' ');
for J in 2 .. S'Length loop
if S (J) = '_' then
S (J) := ' ';
else
S (J) := Fold_Lower (S (J));
end if;
end loop;
Write_Str (S);
Write_Eol;
if not Multiple_Files then
Write_Str (" ");
end if;
Last_Index := No_Source_File;
-- Loop through entries for single feature
Ref_Loop : loop
exit Features_Loop when Index > Feature_List.Last;
exit Ref_Loop when Feature_List.Table (Index).F /= F;
Write_Ref (Feature_List.Table (Index).L);
Index := Index + 1;
end loop Ref_Loop;
end;
end loop Features_Loop;
end if;
-- Output with'ed unit table use table
return;
-- ??? for now, next section not implemented yet
Write_Eol;
Write_Eol;
if With_List.Last = 0 then
Write_Str ("No use of Ada 95 Library Units Recorded");
Write_Eol;
Write_Eol;
else
-- If entries present, first sort them
Sort (With_List.Last, Move_With'Access, Lt_With'Access);
-- Then remove duplicate entries, which can arise from multiple
-- recording of the same use in different parts of the compiler.
declare
N : Natural := 1;
begin
for J in 2 .. With_List.Last loop
if With_List.Table (J) /= With_List.Table (J - 1) then
N := N + 1;
With_List.Table (N) := With_List.Table (J);
end if;
end loop;
With_List.Set_Last (N);
end;
-- Now generate output listing
Write_Str ("Use of Ada 95 Library Units Recorded");
Write_Eol;
Write_Str ("------------------------------------");
Write_Eol;
-- Loop through with'ed units in table
Index := 1;
With_Loop : loop
declare
U : constant Unit_Name_Type := With_List.Table (Index).U;
begin
Write_Eol;
Write_Unit_Name (U);
Write_Char (' ');
Last_Index := No_Source_File;
-- Loop through entries for single with'ed unit
Ref_With_Loop : loop
exit With_Loop when Index > With_List.Last;
exit Ref_With_Loop when With_List.Table (Index).U /= U;
Write_Ref (With_List.Table (Index).L);
Index := Index + 1;
end loop Ref_With_Loop;
end;
end loop With_Loop;
end if;
end Finalize;
----------------
-- Initialize --
----------------
procedure Initialize is
begin
if Xref_Flag_9 then
Features_On := True;
Feature_List.Init;
With_List.Init;
-- Allocate zero index entries at the start of the tables (used by
-- sort routine as temporaries, not otherwise used for real entries)
Feature_List.Increment_Last;
With_List.Increment_Last;
end if;
end Initialize;
----------------
-- Lt_Feature --
----------------
function Lt_Feature (Op1, Op2 : Natural) return Boolean is
begin
if Feature_List.Table (Op1).F /= Feature_List.Table (Op2).F then
return Feature_List.Table (Op1).F < Feature_List.Table (Op2).F;
else
return
Lt_Slocs (Feature_List.Table (Op1).L, Feature_List.Table (Op2).L);
end if;
end Lt_Feature;
--------------
-- Lt_Slocs --
--------------
function Lt_Slocs (Op1, Op2 : Source_Ptr) return Boolean is
Op1_Unit : constant Unit_Name_Type :=
Unit_Name (Get_Sloc_Unit_Number (Op1));
Op2_Unit : constant Unit_Name_Type :=
Unit_Name (Get_Sloc_Unit_Number (Op2));
begin
if Op1_Unit = Op2_Unit then
return Op1 < Op2;
else
return Lt_Units (Op1_Unit, Op2_Unit);
end if;
end Lt_Slocs;
--------------
-- Lt_Units --
--------------
function Lt_Units (Op1, Op2 : Unit_Name_Type) return Boolean is
Op1_Name : String (1 .. Hostparm.Max_Name_Length);
Op1_Name_Len : Natural;
Op2_Name : String renames Name_Buffer;
Op2_Name_Len : Natural renames Name_Len;
begin
Get_Name_String (Op1);
Op1_Name (1 .. Name_Len) := Name_Buffer (1 .. Name_Len);
Op1_Name_Len := Name_Len;
Get_Name_String (Op2);
for J in 1 .. Name_Len loop
if Op1_Name (J) /= Op2_Name (J) then
return Op1_Name (J) < Op2_Name (J);
end if;
end loop;
return Op1_Name_Len < Op2_Name_Len;
end Lt_Units;
-------------
-- Lt_With --
-------------
function Lt_With (Op1, Op2 : Natural) return Boolean is
Op1_Unit : constant Unit_Name_Type := With_List.Table (Op1).U;
Op2_Unit : constant Unit_Name_Type := With_List.Table (Op2).U;
begin
if Op1_Unit /= Op2_Unit then
return Lt_Units (Op1_Unit, Op2_Unit);
else
return Lt_Slocs (With_List.Table (Op1).L, With_List.Table (Op2).L);
end if;
end Lt_With;
------------------
-- Move_Feature --
------------------
procedure Move_Feature (From : Natural; To : Natural) is
begin
Feature_List.Table (To) := Feature_List.Table (From);
end Move_Feature;
---------------
-- Move_With --
---------------
procedure Move_With (From : Natural; To : Natural) is
begin
With_List.Table (To) := With_List.Table (From);
end Move_With;
------------------
-- Note_Feature --
------------------
procedure Note_Feature (F : Feature_Name; Loc : Source_Ptr) is
begin
if Features_On
and then Loc in Source_Text (Source_Index (Main_Unit))'Range
then
Feature_List.Increment_Last;
Feature_List.Table (Feature_List.Last) := (F => F, L => Loc);
end if;
end Note_Feature;
---------------
-- Note_With --
---------------
procedure Note_With (U : Unit_Name_Type; Loc : Source_Ptr) is
begin
if Loc in Source_Text (Source_Index (Main_Unit))'Range then
With_List.Increment_Last;
With_List.Table (With_List.Last) := (U => U, L => Loc);
end if;
end Note_With;
---------------
-- Write_Ref --
---------------
procedure Write_Ref (L : Source_Ptr) is
Lin : Logical_Line_Number;
Col : Column_Number;
begin
-- For multiple file case, new line if file name changes
if Multiple_Files then
if Last_Index = No_Source_File
or else L not in Source_Text (Last_Index)'Range
then
Write_Eol;
Last_Index := Get_Source_File_Index (L);
Write_Str (" ");
Write_Name (File_Name (Last_Index));
Write_Eol;
Write_Str (" ");
end if;
end if;
-- Start new line if current line is full
if Column > 72 then
Write_Eol;
if Multiple_Files then
Write_Str (" ");
else
Write_Str (" ");
end if;
end if;
-- We do a bit of padding on the line and column number so that in
-- the most usual cases, the references line up nicely in columns
Lin := Get_Line_Number (L);
if Lin < 1000 then
Write_Char (' ');
if Lin < 100 then
Write_Char (' ');
if Lin < 10 then
Write_Char (' ');
end if;
end if;
end if;
Write_Int (Int (Lin));
Col := Get_Column_Number (L);
Write_Char ('(');
if Col < 10 then
Write_Char ('0');
end if;
Write_Int (Int (Col));
Write_Char (')');
Write_Char (' ');
end Write_Ref;
end Features;
|
