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Diffstat (limited to 'gcc-4.9/gcc/ada/xr_tabls.adb')
| -rw-r--r-- | gcc-4.9/gcc/ada/xr_tabls.adb | 1627 |
1 files changed, 1627 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/ada/xr_tabls.adb b/gcc-4.9/gcc/ada/xr_tabls.adb new file mode 100644 index 000000000..4b82b035e --- /dev/null +++ b/gcc-4.9/gcc/ada/xr_tabls.adb @@ -0,0 +1,1627 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- X R _ T A B L S -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1998-2013, 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 Types; use Types; +with Osint; +with Hostparm; + +with Ada.Unchecked_Conversion; +with Ada.Unchecked_Deallocation; +with Ada.Strings.Fixed; +with Ada.Strings; +with Ada.Text_IO; +with Ada.Characters.Handling; use Ada.Characters.Handling; +with Ada.Strings.Unbounded; use Ada.Strings.Unbounded; + +with GNAT.OS_Lib; use GNAT.OS_Lib; +with GNAT.Directory_Operations; use GNAT.Directory_Operations; +with GNAT.HTable; use GNAT.HTable; +with GNAT.Heap_Sort_G; + +package body Xr_Tabls is + + type HTable_Headers is range 1 .. 10000; + + procedure Set_Next (E : File_Reference; Next : File_Reference); + function Next (E : File_Reference) return File_Reference; + function Get_Key (E : File_Reference) return Cst_String_Access; + function Hash (F : Cst_String_Access) return HTable_Headers; + function Equal (F1, F2 : Cst_String_Access) return Boolean; + -- The five subprograms above are used to instantiate the static + -- htable to store the files that should be processed. + + package File_HTable is new GNAT.HTable.Static_HTable + (Header_Num => HTable_Headers, + Element => File_Record, + Elmt_Ptr => File_Reference, + Null_Ptr => null, + Set_Next => Set_Next, + Next => Next, + Key => Cst_String_Access, + Get_Key => Get_Key, + Hash => Hash, + Equal => Equal); + -- A hash table to store all the files referenced in the + -- application. The keys in this htable are the name of the files + -- themselves, therefore it is assumed that the source path + -- doesn't contain twice the same source or ALI file name + + type Unvisited_Files_Record; + type Unvisited_Files_Access is access Unvisited_Files_Record; + type Unvisited_Files_Record is record + File : File_Reference; + Next : Unvisited_Files_Access; + end record; + -- A special list, in addition to File_HTable, that only stores + -- the files that haven't been visited so far. Note that the File + -- list points to some data in File_HTable, and thus should never be freed. + + function Next (E : Declaration_Reference) return Declaration_Reference; + procedure Set_Next (E, Next : Declaration_Reference); + function Get_Key (E : Declaration_Reference) return Cst_String_Access; + -- The subprograms above are used to instantiate the static + -- htable to store the entities that have been found in the application + + package Entities_HTable is new GNAT.HTable.Static_HTable + (Header_Num => HTable_Headers, + Element => Declaration_Record, + Elmt_Ptr => Declaration_Reference, + Null_Ptr => null, + Set_Next => Set_Next, + Next => Next, + Key => Cst_String_Access, + Get_Key => Get_Key, + Hash => Hash, + Equal => Equal); + -- A hash table to store all the entities defined in the + -- application. For each entity, we store a list of its reference + -- locations as well. + -- The keys in this htable should be created with Key_From_Ref, + -- and are the file, line and column of the declaration, which are + -- unique for every entity. + + Entities_Count : Natural := 0; + -- Number of entities in Entities_HTable. This is used in the end + -- when sorting the table. + + Longest_File_Name_In_Table : Natural := 0; + Unvisited_Files : Unvisited_Files_Access := null; + Directories : Project_File_Ptr; + Default_Match : Boolean := False; + -- The above need commenting ??? + + function Parse_Gnatls_Src return String; + -- Return the standard source directories (taking into account the + -- ADA_INCLUDE_PATH environment variable, if Osint.Add_Default_Search_Dirs + -- was called first). + + function Parse_Gnatls_Obj return String; + -- Return the standard object directories (taking into account the + -- ADA_OBJECTS_PATH environment variable). + + function Key_From_Ref + (File_Ref : File_Reference; + Line : Natural; + Column : Natural) + return String; + -- Return a key for the symbol declared at File_Ref, Line, + -- Column. This key should be used for lookup in Entity_HTable + + function Is_Less_Than (Decl1, Decl2 : Declaration_Reference) return Boolean; + -- Compare two declarations (the comparison is case-insensitive) + + function Is_Less_Than (Ref1, Ref2 : Reference) return Boolean; + -- Compare two references + + procedure Store_References + (Decl : Declaration_Reference; + Get_Writes : Boolean := False; + Get_Reads : Boolean := False; + Get_Bodies : Boolean := False; + Get_Declaration : Boolean := False; + Arr : in out Reference_Array; + Index : in out Natural); + -- Store in Arr, starting at Index, all the references to Decl. The Get_* + -- parameters can be used to indicate which references should be stored. + -- Constraint_Error will be raised if Arr is not big enough. + + procedure Sort (Arr : in out Reference_Array); + -- Sort an array of references (Arr'First must be 1) + + -------------- + -- Set_Next -- + -------------- + + procedure Set_Next (E : File_Reference; Next : File_Reference) is + begin + E.Next := Next; + end Set_Next; + + procedure Set_Next + (E : Declaration_Reference; Next : Declaration_Reference) is + begin + E.Next := Next; + end Set_Next; + + ------------- + -- Get_Key -- + ------------- + + function Get_Key (E : File_Reference) return Cst_String_Access is + begin + return E.File; + end Get_Key; + + function Get_Key (E : Declaration_Reference) return Cst_String_Access is + begin + return E.Key; + end Get_Key; + + ---------- + -- Hash -- + ---------- + + function Hash (F : Cst_String_Access) return HTable_Headers is + function H is new GNAT.HTable.Hash (HTable_Headers); + + begin + return H (F.all); + end Hash; + + ----------- + -- Equal -- + ----------- + + function Equal (F1, F2 : Cst_String_Access) return Boolean is + begin + return F1.all = F2.all; + end Equal; + + ------------------ + -- Key_From_Ref -- + ------------------ + + function Key_From_Ref + (File_Ref : File_Reference; + Line : Natural; + Column : Natural) + return String + is + begin + return File_Ref.File.all & Natural'Image (Line) & Natural'Image (Column); + end Key_From_Ref; + + --------------------- + -- Add_Declaration -- + --------------------- + + function Add_Declaration + (File_Ref : File_Reference; + Symbol : String; + Line : Natural; + Column : Natural; + Decl_Type : Character; + Is_Parameter : Boolean := False; + Remove_Only : Boolean := False; + Symbol_Match : Boolean := True) + return Declaration_Reference + is + procedure Unchecked_Free is new Ada.Unchecked_Deallocation + (Declaration_Record, Declaration_Reference); + + Key : aliased constant String := Key_From_Ref (File_Ref, Line, Column); + + New_Decl : Declaration_Reference := + Entities_HTable.Get (Key'Unchecked_Access); + + Is_Param : Boolean := Is_Parameter; + + begin + -- Insert the Declaration in the table. There might already be a + -- declaration in the table if the entity is a parameter, so we + -- need to check that first. + + if New_Decl /= null and then New_Decl.Symbol_Length = 0 then + Is_Param := Is_Parameter or else New_Decl.Is_Parameter; + Entities_HTable.Remove (Key'Unrestricted_Access); + Entities_Count := Entities_Count - 1; + Free (New_Decl.Key); + Unchecked_Free (New_Decl); + New_Decl := null; + end if; + + -- The declaration might also already be there for parent types. In + -- this case, we should keep the entry, since some other entries are + -- pointing to it. + + if New_Decl = null + and then not Remove_Only + then + New_Decl := + new Declaration_Record' + (Symbol_Length => Symbol'Length, + Symbol => Symbol, + Key => new String'(Key), + Decl => new Reference_Record' + (File => File_Ref, + Line => Line, + Column => Column, + Source_Line => null, + Next => null), + Is_Parameter => Is_Param, + Decl_Type => Decl_Type, + Body_Ref => null, + Ref_Ref => null, + Modif_Ref => null, + Match => Symbol_Match + and then + (Default_Match + or else Match (File_Ref, Line, Column)), + Par_Symbol => null, + Next => null); + + Entities_HTable.Set (New_Decl); + Entities_Count := Entities_Count + 1; + + if New_Decl.Match then + Longest_File_Name_In_Table := + Natural'Max (File_Ref.File'Length, Longest_File_Name_In_Table); + end if; + + elsif New_Decl /= null + and then not New_Decl.Match + then + New_Decl.Match := Default_Match + or else Match (File_Ref, Line, Column); + New_Decl.Is_Parameter := New_Decl.Is_Parameter or Is_Param; + + elsif New_Decl /= null then + New_Decl.Is_Parameter := New_Decl.Is_Parameter or Is_Param; + end if; + + return New_Decl; + end Add_Declaration; + + ---------------------- + -- Add_To_Xref_File -- + ---------------------- + + function Add_To_Xref_File + (File_Name : String; + Visited : Boolean := True; + Emit_Warning : Boolean := False; + Gnatchop_File : String := ""; + Gnatchop_Offset : Integer := 0) return File_Reference + is + Base : aliased constant String := Base_Name (File_Name); + Dir : constant String := Dir_Name (File_Name); + Dir_Acc : GNAT.OS_Lib.String_Access := null; + Ref : File_Reference; + + begin + -- Do we have a directory name as well? + + if File_Name /= Base then + Dir_Acc := new String'(Dir); + end if; + + Ref := File_HTable.Get (Base'Unchecked_Access); + if Ref = null then + Ref := new File_Record' + (File => new String'(Base), + Dir => Dir_Acc, + Lines => null, + Visited => Visited, + Emit_Warning => Emit_Warning, + Gnatchop_File => new String'(Gnatchop_File), + Gnatchop_Offset => Gnatchop_Offset, + Next => null); + File_HTable.Set (Ref); + + if not Visited then + + -- Keep a separate list for faster access + + Set_Unvisited (Ref); + end if; + end if; + return Ref; + end Add_To_Xref_File; + + -------------- + -- Add_Line -- + -------------- + + procedure Add_Line + (File : File_Reference; + Line : Natural; + Column : Natural) + is + begin + File.Lines := new Ref_In_File'(Line => Line, + Column => Column, + Next => File.Lines); + end Add_Line; + + ---------------- + -- Add_Parent -- + ---------------- + + procedure Add_Parent + (Declaration : in out Declaration_Reference; + Symbol : String; + Line : Natural; + Column : Natural; + File_Ref : File_Reference) + is + begin + Declaration.Par_Symbol := + Add_Declaration + (File_Ref, Symbol, Line, Column, + Decl_Type => ' ', + Symbol_Match => False); + end Add_Parent; + + ------------------- + -- Add_Reference -- + ------------------- + + procedure Add_Reference + (Declaration : Declaration_Reference; + File_Ref : File_Reference; + Line : Natural; + Column : Natural; + Ref_Type : Character; + Labels_As_Ref : Boolean) + is + New_Ref : Reference; + New_Decl : Declaration_Reference; + pragma Unreferenced (New_Decl); + + begin + case Ref_Type is + when 'b' | 'c' | 'H' | 'm' | 'o' | 'r' | 'R' | + 's' | 'i' | ' ' | 'x' => + null; + + when 'l' | 'w' => + if not Labels_As_Ref then + return; + end if; + + when '=' | '<' | '>' | '^' => + + -- Create dummy declaration in table to report it as a parameter + + -- In a given ALI file, the declaration of the subprogram comes + -- before the declaration of the parameter. However, it is + -- possible that another ALI file has been parsed that also + -- references the parameter (for instance a named parameter in + -- a call), so we need to check whether there already exists a + -- declaration for the parameter. + + New_Decl := + Add_Declaration + (File_Ref => File_Ref, + Symbol => "", + Line => Line, + Column => Column, + Decl_Type => ' ', + Is_Parameter => True); + + when 'e' | 'E' | 'z' | 't' | 'p' | 'P' | 'k' | 'd' => + return; + + when others => + Ada.Text_IO.Put_Line ("Unknown reference type: " & Ref_Type); + return; + end case; + + New_Ref := new Reference_Record' + (File => File_Ref, + Line => Line, + Column => Column, + Source_Line => null, + Next => null); + + -- We can insert the reference into the list directly, since all the + -- references will appear only once in the ALI file corresponding to the + -- file where they are referenced. This saves a lot of time compared to + -- checking the list to check if it exists. + + case Ref_Type is + when 'b' | 'c' => + New_Ref.Next := Declaration.Body_Ref; + Declaration.Body_Ref := New_Ref; + + when 'r' | 'R' | 's' | 'H' | 'i' | 'l' | 'o' | ' ' | 'x' | 'w' => + New_Ref.Next := Declaration.Ref_Ref; + Declaration.Ref_Ref := New_Ref; + + when 'm' => + New_Ref.Next := Declaration.Modif_Ref; + Declaration.Modif_Ref := New_Ref; + + when others => + null; + end case; + + if not Declaration.Match then + Declaration.Match := Match (File_Ref, Line, Column); + end if; + + if Declaration.Match then + Longest_File_Name_In_Table := + Natural'Max (File_Ref.File'Length, Longest_File_Name_In_Table); + end if; + end Add_Reference; + + ------------------- + -- ALI_File_Name -- + ------------------- + + function ALI_File_Name (Ada_File_Name : String) return String is + + -- ??? Should ideally be based on the naming scheme defined in + -- project files. + + Index : constant Natural := + Ada.Strings.Fixed.Index + (Ada_File_Name, ".", Going => Ada.Strings.Backward); + + begin + if Index /= 0 then + return Ada_File_Name (Ada_File_Name'First .. Index) + & Osint.ALI_Suffix.all; + else + return Ada_File_Name & "." & Osint.ALI_Suffix.all; + end if; + end ALI_File_Name; + + ------------------ + -- Is_Less_Than -- + ------------------ + + function Is_Less_Than (Ref1, Ref2 : Reference) return Boolean is + begin + if Ref1 = null then + return False; + elsif Ref2 = null then + return True; + end if; + + if Ref1.File.File.all < Ref2.File.File.all then + return True; + + elsif Ref1.File.File.all = Ref2.File.File.all then + return (Ref1.Line < Ref2.Line + or else (Ref1.Line = Ref2.Line + and then Ref1.Column < Ref2.Column)); + end if; + + return False; + end Is_Less_Than; + + ------------------ + -- Is_Less_Than -- + ------------------ + + function Is_Less_Than (Decl1, Decl2 : Declaration_Reference) return Boolean + is + -- We cannot store the data case-insensitive in the table, + -- since we wouldn't be able to find the right casing for the + -- display later on. + + S1 : constant String := To_Lower (Decl1.Symbol); + S2 : constant String := To_Lower (Decl2.Symbol); + + begin + if S1 < S2 then + return True; + elsif S1 > S2 then + return False; + end if; + + return Decl1.Key.all < Decl2.Key.all; + end Is_Less_Than; + + ------------------------- + -- Create_Project_File -- + ------------------------- + + procedure Create_Project_File (Name : String) is + Obj_Dir : Unbounded_String := Null_Unbounded_String; + Src_Dir : Unbounded_String := Null_Unbounded_String; + Build_Dir : GNAT.OS_Lib.String_Access := new String'(""); + + F : File_Descriptor; + Len : Positive; + File_Name : aliased String := Name & ASCII.NUL; + + begin + -- Read the size of the file + + F := Open_Read (File_Name'Address, Text); + + -- Project file not found + + if F /= Invalid_FD then + Len := Positive (File_Length (F)); + + declare + Buffer : String (1 .. Len); + Index : Positive := Buffer'First; + Last : Positive; + + begin + Len := Read (F, Buffer'Address, Len); + Close (F); + + -- First, look for Build_Dir, since all the source and object + -- path are relative to it. + + while Index <= Buffer'Last loop + + -- Find the end of line + + Last := Index; + while Last <= Buffer'Last + and then Buffer (Last) /= ASCII.LF + and then Buffer (Last) /= ASCII.CR + loop + Last := Last + 1; + end loop; + + if Index <= Buffer'Last - 9 + and then Buffer (Index .. Index + 9) = "build_dir=" + then + Index := Index + 10; + while Index <= Last + and then (Buffer (Index) = ' ' + or else Buffer (Index) = ASCII.HT) + loop + Index := Index + 1; + end loop; + + Free (Build_Dir); + Build_Dir := new String'(Buffer (Index .. Last - 1)); + end if; + + Index := Last + 1; + + -- In case we had a ASCII.CR/ASCII.LF end of line, skip the + -- remaining symbol + + if Index <= Buffer'Last + and then Buffer (Index) = ASCII.LF + then + Index := Index + 1; + end if; + end loop; + + -- Now parse the source and object paths + + Index := Buffer'First; + while Index <= Buffer'Last loop + + -- Find the end of line + + Last := Index; + while Last <= Buffer'Last + and then Buffer (Last) /= ASCII.LF + and then Buffer (Last) /= ASCII.CR + loop + Last := Last + 1; + end loop; + + if Index <= Buffer'Last - 7 + and then Buffer (Index .. Index + 7) = "src_dir=" + then + Append (Src_Dir, Normalize_Pathname + (Name => Ada.Strings.Fixed.Trim + (Buffer (Index + 8 .. Last - 1), Ada.Strings.Both), + Directory => Build_Dir.all) & Path_Separator); + + elsif Index <= Buffer'Last - 7 + and then Buffer (Index .. Index + 7) = "obj_dir=" + then + Append (Obj_Dir, Normalize_Pathname + (Name => Ada.Strings.Fixed.Trim + (Buffer (Index + 8 .. Last - 1), Ada.Strings.Both), + Directory => Build_Dir.all) & Path_Separator); + end if; + + -- In case we had a ASCII.CR/ASCII.LF end of line, skip the + -- remaining symbol + Index := Last + 1; + + if Index <= Buffer'Last + and then Buffer (Index) = ASCII.LF + then + Index := Index + 1; + end if; + end loop; + end; + end if; + + Osint.Add_Default_Search_Dirs; + + declare + Src : constant String := Parse_Gnatls_Src; + Obj : constant String := Parse_Gnatls_Obj; + + begin + Directories := new Project_File' + (Src_Dir_Length => Length (Src_Dir) + Src'Length, + Obj_Dir_Length => Length (Obj_Dir) + Obj'Length, + Src_Dir => To_String (Src_Dir) & Src, + Obj_Dir => To_String (Obj_Dir) & Obj, + Src_Dir_Index => 1, + Obj_Dir_Index => 1, + Last_Obj_Dir_Start => 0); + end; + + Free (Build_Dir); + end Create_Project_File; + + --------------------- + -- Current_Obj_Dir -- + --------------------- + + function Current_Obj_Dir return String is + begin + return Directories.Obj_Dir + (Directories.Last_Obj_Dir_Start .. Directories.Obj_Dir_Index - 2); + end Current_Obj_Dir; + + ---------------- + -- Get_Column -- + ---------------- + + function Get_Column (Decl : Declaration_Reference) return String is + begin + return Ada.Strings.Fixed.Trim (Natural'Image (Decl.Decl.Column), + Ada.Strings.Left); + end Get_Column; + + function Get_Column (Ref : Reference) return String is + begin + return Ada.Strings.Fixed.Trim (Natural'Image (Ref.Column), + Ada.Strings.Left); + end Get_Column; + + --------------------- + -- Get_Declaration -- + --------------------- + + function Get_Declaration + (File_Ref : File_Reference; + Line : Natural; + Column : Natural) + return Declaration_Reference + is + Key : aliased constant String := Key_From_Ref (File_Ref, Line, Column); + + begin + return Entities_HTable.Get (Key'Unchecked_Access); + end Get_Declaration; + + ---------------------- + -- Get_Emit_Warning -- + ---------------------- + + function Get_Emit_Warning (File : File_Reference) return Boolean is + begin + return File.Emit_Warning; + end Get_Emit_Warning; + + -------------- + -- Get_File -- + -------------- + + function Get_File + (Decl : Declaration_Reference; + With_Dir : Boolean := False) return String + is + begin + return Get_File (Decl.Decl.File, With_Dir); + end Get_File; + + function Get_File + (Ref : Reference; + With_Dir : Boolean := False) return String + is + begin + return Get_File (Ref.File, With_Dir); + end Get_File; + + function Get_File + (File : File_Reference; + With_Dir : Boolean := False; + Strip : Natural := 0) return String + is + Tmp : GNAT.OS_Lib.String_Access; + + function Internal_Strip (Full_Name : String) return String; + -- Internal function to process the Strip parameter + + -------------------- + -- Internal_Strip -- + -------------------- + + function Internal_Strip (Full_Name : String) return String is + Unit_End : Natural; + Extension_Start : Natural; + S : Natural; + + begin + if Strip = 0 then + return Full_Name; + end if; + + -- Isolate the file extension + + Extension_Start := Full_Name'Last; + while Extension_Start >= Full_Name'First + and then Full_Name (Extension_Start) /= '.' + loop + Extension_Start := Extension_Start - 1; + end loop; + + -- Strip the right number of subunit_names + + S := Strip; + Unit_End := Extension_Start - 1; + while Unit_End >= Full_Name'First + and then S > 0 + loop + if Full_Name (Unit_End) = '-' then + S := S - 1; + end if; + + Unit_End := Unit_End - 1; + end loop; + + if Unit_End < Full_Name'First then + return ""; + else + return Full_Name (Full_Name'First .. Unit_End) + & Full_Name (Extension_Start .. Full_Name'Last); + end if; + end Internal_Strip; + + -- Start of processing for Get_File; + + begin + -- If we do not want the full path name + + if not With_Dir then + return Internal_Strip (File.File.all); + end if; + + if File.Dir = null then + if Ada.Strings.Fixed.Tail (File.File.all, 3) = + Osint.ALI_Suffix.all + then + Tmp := Locate_Regular_File + (Internal_Strip (File.File.all), Directories.Obj_Dir); + else + Tmp := Locate_Regular_File + (File.File.all, Directories.Src_Dir); + end if; + + if Tmp = null then + File.Dir := new String'(""); + else + File.Dir := new String'(Dir_Name (Tmp.all)); + Free (Tmp); + end if; + end if; + + return Internal_Strip (File.Dir.all & File.File.all); + end Get_File; + + ------------------ + -- Get_File_Ref -- + ------------------ + + function Get_File_Ref (Ref : Reference) return File_Reference is + begin + return Ref.File; + end Get_File_Ref; + + ----------------------- + -- Get_Gnatchop_File -- + ----------------------- + + function Get_Gnatchop_File + (File : File_Reference; + With_Dir : Boolean := False) + return String + is + begin + if File.Gnatchop_File.all = "" then + return Get_File (File, With_Dir); + else + return File.Gnatchop_File.all; + end if; + end Get_Gnatchop_File; + + function Get_Gnatchop_File + (Ref : Reference; + With_Dir : Boolean := False) + return String + is + begin + return Get_Gnatchop_File (Ref.File, With_Dir); + end Get_Gnatchop_File; + + function Get_Gnatchop_File + (Decl : Declaration_Reference; + With_Dir : Boolean := False) + return String + is + begin + return Get_Gnatchop_File (Decl.Decl.File, With_Dir); + end Get_Gnatchop_File; + + -------------- + -- Get_Line -- + -------------- + + function Get_Line (Decl : Declaration_Reference) return String is + begin + return Ada.Strings.Fixed.Trim (Natural'Image (Decl.Decl.Line), + Ada.Strings.Left); + end Get_Line; + + function Get_Line (Ref : Reference) return String is + begin + return Ada.Strings.Fixed.Trim (Natural'Image (Ref.Line), + Ada.Strings.Left); + end Get_Line; + + ---------------- + -- Get_Parent -- + ---------------- + + function Get_Parent + (Decl : Declaration_Reference) + return Declaration_Reference + is + begin + return Decl.Par_Symbol; + end Get_Parent; + + --------------------- + -- Get_Source_Line -- + --------------------- + + function Get_Source_Line (Ref : Reference) return String is + begin + if Ref.Source_Line /= null then + return Ref.Source_Line.all; + else + return ""; + end if; + end Get_Source_Line; + + function Get_Source_Line (Decl : Declaration_Reference) return String is + begin + if Decl.Decl.Source_Line /= null then + return Decl.Decl.Source_Line.all; + else + return ""; + end if; + end Get_Source_Line; + + ---------------- + -- Get_Symbol -- + ---------------- + + function Get_Symbol (Decl : Declaration_Reference) return String is + begin + return Decl.Symbol; + end Get_Symbol; + + -------------- + -- Get_Type -- + -------------- + + function Get_Type (Decl : Declaration_Reference) return Character is + begin + return Decl.Decl_Type; + end Get_Type; + + ---------- + -- Sort -- + ---------- + + procedure Sort (Arr : in out Reference_Array) is + Tmp : Reference; + + function Lt (Op1, Op2 : Natural) return Boolean; + procedure Move (From, To : Natural); + -- See GNAT.Heap_Sort_G + + -------- + -- Lt -- + -------- + + function Lt (Op1, Op2 : Natural) return Boolean is + begin + if Op1 = 0 then + return Is_Less_Than (Tmp, Arr (Op2)); + elsif Op2 = 0 then + return Is_Less_Than (Arr (Op1), Tmp); + else + return Is_Less_Than (Arr (Op1), Arr (Op2)); + end if; + end Lt; + + ---------- + -- Move -- + ---------- + + procedure Move (From, To : Natural) is + begin + if To = 0 then + Tmp := Arr (From); + elsif From = 0 then + Arr (To) := Tmp; + else + Arr (To) := Arr (From); + end if; + end Move; + + package Ref_Sort is new GNAT.Heap_Sort_G (Move, Lt); + + -- Start of processing for Sort + + begin + Ref_Sort.Sort (Arr'Last); + end Sort; + + ----------------------- + -- Grep_Source_Files -- + ----------------------- + + procedure Grep_Source_Files is + Length : Natural := 0; + Decl : Declaration_Reference := Entities_HTable.Get_First; + Arr : Reference_Array_Access; + Index : Natural; + End_Index : Natural; + Current_File : File_Reference; + Current_Line : Cst_String_Access; + Buffer : GNAT.OS_Lib.String_Access; + Ref : Reference; + Line : Natural; + + begin + -- Create a temporary array, where all references will be + -- sorted by files. This way, we only have to read the source + -- files once. + + while Decl /= null loop + + -- Add 1 for the declaration itself + + Length := Length + References_Count (Decl, True, True, True) + 1; + Decl := Entities_HTable.Get_Next; + end loop; + + Arr := new Reference_Array (1 .. Length); + Index := Arr'First; + + Decl := Entities_HTable.Get_First; + while Decl /= null loop + Store_References (Decl, True, True, True, True, Arr.all, Index); + Decl := Entities_HTable.Get_Next; + end loop; + + Sort (Arr.all); + + -- Now traverse the whole array and find the appropriate source + -- lines. + + for R in Arr'Range loop + Ref := Arr (R); + + if Ref.File /= Current_File then + Free (Buffer); + begin + Read_File (Get_File (Ref.File, With_Dir => True), Buffer); + End_Index := Buffer'First - 1; + Line := 0; + exception + when Ada.Text_IO.Name_Error | Ada.Text_IO.End_Error => + Line := Natural'Last; + end; + Current_File := Ref.File; + end if; + + if Ref.Line > Line then + + -- Do not free Current_Line, it is referenced by the last + -- Ref we processed. + + loop + Index := End_Index + 1; + + loop + End_Index := End_Index + 1; + exit when End_Index > Buffer'Last + or else Buffer (End_Index) = ASCII.LF; + end loop; + + -- Skip spaces at beginning of line + + while Index < End_Index and then + (Buffer (Index) = ' ' or else Buffer (Index) = ASCII.HT) + loop + Index := Index + 1; + end loop; + + Line := Line + 1; + exit when Ref.Line = Line; + end loop; + + Current_Line := new String'(Buffer (Index .. End_Index - 1)); + end if; + + Ref.Source_Line := Current_Line; + end loop; + + Free (Buffer); + Free (Arr); + end Grep_Source_Files; + + --------------- + -- Read_File -- + --------------- + + procedure Read_File + (File_Name : String; + Contents : out GNAT.OS_Lib.String_Access) + is + Name_0 : constant String := File_Name & ASCII.NUL; + FD : constant File_Descriptor := Open_Read (Name_0'Address, Binary); + Length : Natural; + + begin + if FD = Invalid_FD then + raise Ada.Text_IO.Name_Error; + end if; + + -- Include room for EOF char + + Length := Natural (File_Length (FD)); + + declare + Buffer : String (1 .. Length + 1); + This_Read : Integer; + Read_Ptr : Natural := 1; + + begin + loop + This_Read := Read (FD, + A => Buffer (Read_Ptr)'Address, + N => Length + 1 - Read_Ptr); + Read_Ptr := Read_Ptr + Integer'Max (This_Read, 0); + exit when This_Read <= 0; + end loop; + + Buffer (Read_Ptr) := EOF; + Contents := new String'(Buffer (1 .. Read_Ptr)); + + -- Things are not simple on VMS due to the plethora of file types + -- and organizations. It seems clear that there shouldn't be more + -- bytes read than are contained in the file though. + + if (Hostparm.OpenVMS and then Read_Ptr > Length + 1) + or else (not Hostparm.OpenVMS and then Read_Ptr /= Length + 1) + then + raise Ada.Text_IO.End_Error; + end if; + + Close (FD); + end; + end Read_File; + + ----------------------- + -- Longest_File_Name -- + ----------------------- + + function Longest_File_Name return Natural is + begin + return Longest_File_Name_In_Table; + end Longest_File_Name; + + ----------- + -- Match -- + ----------- + + function Match + (File : File_Reference; + Line : Natural; + Column : Natural) + return Boolean + is + Ref : Ref_In_File_Ptr := File.Lines; + + begin + while Ref /= null loop + if (Ref.Line = 0 or else Ref.Line = Line) + and then (Ref.Column = 0 or else Ref.Column = Column) + then + return True; + end if; + + Ref := Ref.Next; + end loop; + + return False; + end Match; + + ----------- + -- Match -- + ----------- + + function Match (Decl : Declaration_Reference) return Boolean is + begin + return Decl.Match; + end Match; + + ---------- + -- Next -- + ---------- + + function Next (E : File_Reference) return File_Reference is + begin + return E.Next; + end Next; + + function Next (E : Declaration_Reference) return Declaration_Reference is + begin + return E.Next; + end Next; + + ------------------ + -- Next_Obj_Dir -- + ------------------ + + function Next_Obj_Dir return String is + First : constant Integer := Directories.Obj_Dir_Index; + Last : Integer; + + begin + Last := Directories.Obj_Dir_Index; + + if Last > Directories.Obj_Dir_Length then + return String'(1 .. 0 => ' '); + end if; + + while Directories.Obj_Dir (Last) /= Path_Separator loop + Last := Last + 1; + end loop; + + Directories.Obj_Dir_Index := Last + 1; + Directories.Last_Obj_Dir_Start := First; + return Directories.Obj_Dir (First .. Last - 1); + end Next_Obj_Dir; + + ------------------------- + -- Next_Unvisited_File -- + ------------------------- + + function Next_Unvisited_File return File_Reference is + procedure Unchecked_Free is new Ada.Unchecked_Deallocation + (Unvisited_Files_Record, Unvisited_Files_Access); + + Ref : File_Reference; + Tmp : Unvisited_Files_Access; + + begin + if Unvisited_Files = null then + return Empty_File; + else + Tmp := Unvisited_Files; + Ref := Unvisited_Files.File; + Unvisited_Files := Unvisited_Files.Next; + Unchecked_Free (Tmp); + return Ref; + end if; + end Next_Unvisited_File; + + ---------------------- + -- Parse_Gnatls_Src -- + ---------------------- + + function Parse_Gnatls_Src return String is + Length : Natural; + + begin + Length := 0; + for J in 1 .. Osint.Nb_Dir_In_Src_Search_Path loop + if Osint.Dir_In_Src_Search_Path (J)'Length = 0 then + Length := Length + 2; + else + Length := Length + Osint.Dir_In_Src_Search_Path (J)'Length + 1; + end if; + end loop; + + declare + Result : String (1 .. Length); + L : Natural; + + begin + L := Result'First; + for J in 1 .. Osint.Nb_Dir_In_Src_Search_Path loop + if Osint.Dir_In_Src_Search_Path (J)'Length = 0 then + Result (L .. L + 1) := "." & Path_Separator; + L := L + 2; + + else + Result (L .. L + Osint.Dir_In_Src_Search_Path (J)'Length - 1) := + Osint.Dir_In_Src_Search_Path (J).all; + L := L + Osint.Dir_In_Src_Search_Path (J)'Length; + Result (L) := Path_Separator; + L := L + 1; + end if; + end loop; + + return Result; + end; + end Parse_Gnatls_Src; + + ---------------------- + -- Parse_Gnatls_Obj -- + ---------------------- + + function Parse_Gnatls_Obj return String is + Length : Natural; + + begin + Length := 0; + for J in 1 .. Osint.Nb_Dir_In_Obj_Search_Path loop + if Osint.Dir_In_Obj_Search_Path (J)'Length = 0 then + Length := Length + 2; + else + Length := Length + Osint.Dir_In_Obj_Search_Path (J)'Length + 1; + end if; + end loop; + + declare + Result : String (1 .. Length); + L : Natural; + + begin + L := Result'First; + for J in 1 .. Osint.Nb_Dir_In_Obj_Search_Path loop + if Osint.Dir_In_Obj_Search_Path (J)'Length = 0 then + Result (L .. L + 1) := "." & Path_Separator; + L := L + 2; + else + Result (L .. L + Osint.Dir_In_Obj_Search_Path (J)'Length - 1) := + Osint.Dir_In_Obj_Search_Path (J).all; + L := L + Osint.Dir_In_Obj_Search_Path (J)'Length; + Result (L) := Path_Separator; + L := L + 1; + end if; + end loop; + + return Result; + end; + end Parse_Gnatls_Obj; + + ------------------- + -- Reset_Obj_Dir -- + ------------------- + + procedure Reset_Obj_Dir is + begin + Directories.Obj_Dir_Index := 1; + end Reset_Obj_Dir; + + ----------------------- + -- Set_Default_Match -- + ----------------------- + + procedure Set_Default_Match (Value : Boolean) is + begin + Default_Match := Value; + end Set_Default_Match; + + ---------- + -- Free -- + ---------- + + procedure Free (Str : in out Cst_String_Access) is + function Convert is new Ada.Unchecked_Conversion + (Cst_String_Access, GNAT.OS_Lib.String_Access); + + S : GNAT.OS_Lib.String_Access := Convert (Str); + + begin + Free (S); + Str := null; + end Free; + + --------------------- + -- Reset_Directory -- + --------------------- + + procedure Reset_Directory (File : File_Reference) is + begin + Free (File.Dir); + end Reset_Directory; + + ------------------- + -- Set_Unvisited -- + ------------------- + + procedure Set_Unvisited (File_Ref : File_Reference) is + F : constant String := Get_File (File_Ref, With_Dir => False); + + begin + File_Ref.Visited := False; + + -- ??? Do not add a source file to the list. This is true at + -- least for gnatxref, and probably for gnatfind as well + + if F'Length > 4 + and then F (F'Last - 3 .. F'Last) = "." & Osint.ALI_Suffix.all + then + Unvisited_Files := new Unvisited_Files_Record' + (File => File_Ref, + Next => Unvisited_Files); + end if; + end Set_Unvisited; + + ---------------------- + -- Get_Declarations -- + ---------------------- + + function Get_Declarations + (Sorted : Boolean := True) + return Declaration_Array_Access + is + Arr : constant Declaration_Array_Access := + new Declaration_Array (1 .. Entities_Count); + Decl : Declaration_Reference := Entities_HTable.Get_First; + Index : Natural := Arr'First; + Tmp : Declaration_Reference; + + procedure Move (From : Natural; To : Natural); + function Lt (Op1, Op2 : Natural) return Boolean; + -- See GNAT.Heap_Sort_G + + -------- + -- Lt -- + -------- + + function Lt (Op1, Op2 : Natural) return Boolean is + begin + if Op1 = 0 then + return Is_Less_Than (Tmp, Arr (Op2)); + elsif Op2 = 0 then + return Is_Less_Than (Arr (Op1), Tmp); + else + return Is_Less_Than (Arr (Op1), Arr (Op2)); + end if; + end Lt; + + ---------- + -- Move -- + ---------- + + procedure Move (From : Natural; To : Natural) is + begin + if To = 0 then + Tmp := Arr (From); + elsif From = 0 then + Arr (To) := Tmp; + else + Arr (To) := Arr (From); + end if; + end Move; + + package Decl_Sort is new GNAT.Heap_Sort_G (Move, Lt); + + -- Start of processing for Get_Declarations + + begin + while Decl /= null loop + Arr (Index) := Decl; + Index := Index + 1; + Decl := Entities_HTable.Get_Next; + end loop; + + if Sorted and then Arr'Length /= 0 then + Decl_Sort.Sort (Entities_Count); + end if; + + return Arr; + end Get_Declarations; + + ---------------------- + -- References_Count -- + ---------------------- + + function References_Count + (Decl : Declaration_Reference; + Get_Reads : Boolean := False; + Get_Writes : Boolean := False; + Get_Bodies : Boolean := False) + return Natural + is + function List_Length (E : Reference) return Natural; + -- Return the number of references in E + + ----------------- + -- List_Length -- + ----------------- + + function List_Length (E : Reference) return Natural is + L : Natural := 0; + E1 : Reference := E; + + begin + while E1 /= null loop + L := L + 1; + E1 := E1.Next; + end loop; + + return L; + end List_Length; + + Length : Natural := 0; + + -- Start of processing for References_Count + + begin + if Get_Reads then + Length := List_Length (Decl.Ref_Ref); + end if; + + if Get_Writes then + Length := Length + List_Length (Decl.Modif_Ref); + end if; + + if Get_Bodies then + Length := Length + List_Length (Decl.Body_Ref); + end if; + + return Length; + end References_Count; + + ---------------------- + -- Store_References -- + ---------------------- + + procedure Store_References + (Decl : Declaration_Reference; + Get_Writes : Boolean := False; + Get_Reads : Boolean := False; + Get_Bodies : Boolean := False; + Get_Declaration : Boolean := False; + Arr : in out Reference_Array; + Index : in out Natural) + is + procedure Add (List : Reference); + -- Add all the references in List to Arr + + --------- + -- Add -- + --------- + + procedure Add (List : Reference) is + E : Reference := List; + begin + while E /= null loop + Arr (Index) := E; + Index := Index + 1; + E := E.Next; + end loop; + end Add; + + -- Start of processing for Store_References + + begin + if Get_Declaration then + Add (Decl.Decl); + end if; + + if Get_Reads then + Add (Decl.Ref_Ref); + end if; + + if Get_Writes then + Add (Decl.Modif_Ref); + end if; + + if Get_Bodies then + Add (Decl.Body_Ref); + end if; + end Store_References; + + -------------------- + -- Get_References -- + -------------------- + + function Get_References + (Decl : Declaration_Reference; + Get_Reads : Boolean := False; + Get_Writes : Boolean := False; + Get_Bodies : Boolean := False) + return Reference_Array_Access + is + Length : constant Natural := + References_Count (Decl, Get_Reads, Get_Writes, Get_Bodies); + + Arr : constant Reference_Array_Access := + new Reference_Array (1 .. Length); + + Index : Natural := Arr'First; + + begin + Store_References + (Decl => Decl, + Get_Writes => Get_Writes, + Get_Reads => Get_Reads, + Get_Bodies => Get_Bodies, + Get_Declaration => False, + Arr => Arr.all, + Index => Index); + + if Arr'Length /= 0 then + Sort (Arr.all); + end if; + + return Arr; + end Get_References; + + ---------- + -- Free -- + ---------- + + procedure Free (Arr : in out Reference_Array_Access) is + procedure Internal is new Ada.Unchecked_Deallocation + (Reference_Array, Reference_Array_Access); + begin + Internal (Arr); + end Free; + + ------------------ + -- Is_Parameter -- + ------------------ + + function Is_Parameter (Decl : Declaration_Reference) return Boolean is + begin + return Decl.Is_Parameter; + end Is_Parameter; + +end Xr_Tabls; |