| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- U N A M E -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2022, 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 Casing; use Casing; |
| with Einfo; use Einfo; |
| with Einfo.Utils; use Einfo.Utils; |
| with Hostparm; |
| with Lib; use Lib; |
| with Nlists; use Nlists; |
| with Output; use Output; |
| with Sinfo; use Sinfo; |
| with Sinfo.Nodes; use Sinfo.Nodes; |
| with Sinfo.Utils; use Sinfo.Utils; |
| with Sinput; use Sinput; |
| |
| package body Uname is |
| |
| function Has_Prefix (X, Prefix : String) return Boolean; |
| -- True if Prefix is at the beginning of X. For example, |
| -- Has_Prefix("a-filename.ads", Prefix => "a-") is True. |
| |
| ------------------- |
| -- Get_Body_Name -- |
| ------------------- |
| |
| function Get_Body_Name (N : Unit_Name_Type) return Unit_Name_Type is |
| Buffer : Bounded_String; |
| begin |
| Append (Buffer, N); |
| |
| pragma Assert |
| (Buffer.Length > 2 |
| and then Buffer.Chars (Buffer.Length - 1) = '%' |
| and then Buffer.Chars (Buffer.Length) = 's'); |
| |
| Buffer.Chars (Buffer.Length) := 'b'; |
| |
| return Name_Find (Buffer); |
| end Get_Body_Name; |
| |
| ----------------------------------- |
| -- Get_External_Unit_Name_String -- |
| ----------------------------------- |
| |
| procedure Get_External_Unit_Name_String (N : Unit_Name_Type) is |
| Pcount : Natural; |
| Newlen : Natural; |
| |
| begin |
| -- Get unit name and eliminate trailing %s or %b |
| |
| Get_Name_String (N); |
| Name_Len := Name_Len - 2; |
| |
| -- Find number of components |
| |
| Pcount := 0; |
| for J in 1 .. Name_Len loop |
| if Name_Buffer (J) = '.' then |
| Pcount := Pcount + 1; |
| end if; |
| end loop; |
| |
| -- If simple name, nothing to do |
| |
| if Pcount = 0 then |
| return; |
| end if; |
| |
| -- If name has multiple components, replace dots by double underscore |
| |
| Newlen := Name_Len + Pcount; |
| |
| for J in reverse 1 .. Name_Len loop |
| if Name_Buffer (J) = '.' then |
| Name_Buffer (Newlen) := '_'; |
| Name_Buffer (Newlen - 1) := '_'; |
| Newlen := Newlen - 2; |
| |
| else |
| Name_Buffer (Newlen) := Name_Buffer (J); |
| Newlen := Newlen - 1; |
| end if; |
| end loop; |
| |
| Name_Len := Name_Len + Pcount; |
| end Get_External_Unit_Name_String; |
| |
| -------------------------- |
| -- Get_Parent_Body_Name -- |
| -------------------------- |
| |
| function Get_Parent_Body_Name (N : Unit_Name_Type) return Unit_Name_Type is |
| Buffer : Bounded_String; |
| begin |
| Append (Buffer, N); |
| |
| while Buffer.Chars (Buffer.Length) /= '.' loop |
| pragma Assert (Buffer.Length > 1); -- not a child or subunit name |
| Buffer.Length := Buffer.Length - 1; |
| end loop; |
| |
| Buffer.Chars (Buffer.Length) := '%'; |
| Append (Buffer, 'b'); |
| |
| return Name_Find (Buffer); |
| end Get_Parent_Body_Name; |
| |
| -------------------------- |
| -- Get_Parent_Spec_Name -- |
| -------------------------- |
| |
| function Get_Parent_Spec_Name (N : Unit_Name_Type) return Unit_Name_Type is |
| Buffer : Bounded_String; |
| begin |
| Append (Buffer, N); |
| |
| while Buffer.Chars (Buffer.Length) /= '.' loop |
| if Buffer.Length = 1 then |
| return No_Unit_Name; |
| else |
| Buffer.Length := Buffer.Length - 1; |
| end if; |
| end loop; |
| |
| Buffer.Chars (Buffer.Length) := '%'; |
| Append (Buffer, 's'); |
| |
| return Name_Find (Buffer); |
| end Get_Parent_Spec_Name; |
| |
| ------------------- |
| -- Get_Spec_Name -- |
| ------------------- |
| |
| function Get_Spec_Name (N : Unit_Name_Type) return Unit_Name_Type is |
| Buffer : Bounded_String; |
| begin |
| Append (Buffer, N); |
| |
| pragma Assert |
| (Buffer.Length > 2 |
| and then Buffer.Chars (Buffer.Length - 1) = '%' |
| and then Buffer.Chars (Buffer.Length) = 'b'); |
| |
| Buffer.Chars (Buffer.Length) := 's'; |
| |
| return Name_Find (Buffer); |
| end Get_Spec_Name; |
| |
| ------------------- |
| -- Get_Unit_Name -- |
| ------------------- |
| |
| function Get_Unit_Name (N : Node_Id) return Unit_Name_Type is |
| |
| Unit_Name_Buffer : Bounded_String; |
| -- Buffer used to build name of unit |
| |
| Node : Node_Id; |
| -- Program unit node |
| |
| procedure Add_Char (C : Character); |
| -- Add a single character to stored unit name |
| |
| procedure Add_Name (Name : Name_Id); |
| -- Add the characters of a names table entry to stored unit name |
| |
| procedure Add_Node_Name (Node : Node_Id); |
| -- Recursive procedure adds characters associated with Node |
| |
| function Get_Parent (Node : Node_Id) return Node_Id; |
| -- Get parent compilation unit of a stub |
| |
| -------------- |
| -- Add_Char -- |
| -------------- |
| |
| procedure Add_Char (C : Character) is |
| begin |
| Append (Unit_Name_Buffer, C); |
| end Add_Char; |
| |
| -------------- |
| -- Add_Name -- |
| -------------- |
| |
| procedure Add_Name (Name : Name_Id) is |
| begin |
| Append (Unit_Name_Buffer, Name); |
| end Add_Name; |
| |
| ------------------- |
| -- Add_Node_Name -- |
| ------------------- |
| |
| procedure Add_Node_Name (Node : Node_Id) is |
| begin |
| -- Just ignore an error node (someone else will give a message) |
| |
| if Node = Error then |
| return; |
| |
| -- Otherwise see what kind of node we have |
| |
| else |
| case Nkind (Node) is |
| when N_Defining_Identifier |
| | N_Defining_Operator_Symbol |
| | N_Identifier |
| => |
| -- Note: it is of course an error to have a defining |
| -- operator symbol at this point, but this is not where |
| -- the error is signalled, so we handle it nicely here. |
| |
| Add_Name (Chars (Node)); |
| |
| when N_Defining_Program_Unit_Name => |
| Add_Node_Name (Name (Node)); |
| Add_Char ('.'); |
| Add_Node_Name (Defining_Identifier (Node)); |
| |
| when N_Expanded_Name |
| | N_Selected_Component |
| => |
| Add_Node_Name (Prefix (Node)); |
| Add_Char ('.'); |
| Add_Node_Name (Selector_Name (Node)); |
| |
| when N_Package_Specification |
| | N_Subprogram_Specification |
| => |
| Add_Node_Name (Defining_Unit_Name (Node)); |
| |
| when N_Generic_Declaration |
| | N_Package_Declaration |
| | N_Subprogram_Body |
| | N_Subprogram_Declaration |
| => |
| Add_Node_Name (Specification (Node)); |
| |
| when N_Generic_Instantiation => |
| Add_Node_Name (Defining_Unit_Name (Node)); |
| |
| when N_Package_Body => |
| Add_Node_Name (Defining_Unit_Name (Node)); |
| |
| when N_Protected_Body |
| | N_Task_Body |
| => |
| Add_Node_Name (Defining_Identifier (Node)); |
| |
| when N_Package_Renaming_Declaration => |
| Add_Node_Name (Defining_Unit_Name (Node)); |
| |
| when N_Subprogram_Renaming_Declaration => |
| Add_Node_Name (Specification (Node)); |
| |
| when N_Generic_Renaming_Declaration => |
| Add_Node_Name (Defining_Unit_Name (Node)); |
| |
| when N_Subprogram_Body_Stub => |
| Add_Node_Name (Get_Parent (Node)); |
| Add_Char ('.'); |
| Add_Node_Name (Specification (Node)); |
| |
| when N_Compilation_Unit => |
| Add_Node_Name (Unit (Node)); |
| |
| when N_Package_Body_Stub |
| | N_Protected_Body_Stub |
| | N_Task_Body_Stub |
| => |
| Add_Node_Name (Get_Parent (Node)); |
| Add_Char ('.'); |
| Add_Node_Name (Defining_Identifier (Node)); |
| |
| when N_Subunit => |
| Add_Node_Name (Name (Node)); |
| Add_Char ('.'); |
| Add_Node_Name (Proper_Body (Node)); |
| |
| when N_With_Clause => |
| Add_Node_Name (Name (Node)); |
| |
| when N_Pragma => |
| Add_Node_Name (Expression (First |
| (Pragma_Argument_Associations (Node)))); |
| |
| -- Tasks and protected stuff appear only in an error context, |
| -- but the error has been posted elsewhere, so we deal nicely |
| -- with these error situations here, and produce a reasonable |
| -- unit name using the defining identifier. |
| |
| when N_Protected_Type_Declaration |
| | N_Single_Protected_Declaration |
| | N_Single_Task_Declaration |
| | N_Task_Type_Declaration |
| => |
| Add_Node_Name (Defining_Identifier (Node)); |
| |
| when others => |
| raise Program_Error; |
| end case; |
| end if; |
| end Add_Node_Name; |
| |
| ---------------- |
| -- Get_Parent -- |
| ---------------- |
| |
| function Get_Parent (Node : Node_Id) return Node_Id is |
| N : Node_Id := Node; |
| |
| begin |
| while Nkind (N) /= N_Compilation_Unit loop |
| N := Parent (N); |
| end loop; |
| |
| return N; |
| end Get_Parent; |
| |
| -- Start of processing for Get_Unit_Name |
| |
| begin |
| Node := N; |
| |
| -- If we have Defining_Identifier, find the associated unit node |
| |
| if Nkind (Node) = N_Defining_Identifier then |
| Node := Declaration_Node (Node); |
| |
| -- If an expanded name, it is an already analyzed child unit, find |
| -- unit node. |
| |
| elsif Nkind (Node) = N_Expanded_Name then |
| Node := Declaration_Node (Entity (Node)); |
| end if; |
| |
| if Nkind (Node) in N_Package_Specification |
| | N_Subprogram_Specification |
| then |
| Node := Parent (Node); |
| end if; |
| |
| -- Node points to the unit, so get its name and add proper suffix |
| |
| Add_Node_Name (Node); |
| Add_Char ('%'); |
| |
| case Nkind (Node) is |
| when N_Generic_Declaration |
| | N_Generic_Instantiation |
| | N_Generic_Renaming_Declaration |
| | N_Package_Declaration |
| | N_Package_Renaming_Declaration |
| | N_Pragma |
| | N_Protected_Type_Declaration |
| | N_Single_Protected_Declaration |
| | N_Single_Task_Declaration |
| | N_Subprogram_Declaration |
| | N_Subprogram_Renaming_Declaration |
| | N_Task_Type_Declaration |
| | N_With_Clause |
| => |
| Add_Char ('s'); |
| |
| when N_Body_Stub |
| | N_Identifier |
| | N_Package_Body |
| | N_Protected_Body |
| | N_Selected_Component |
| | N_Subprogram_Body |
| | N_Subunit |
| | N_Task_Body |
| => |
| Add_Char ('b'); |
| |
| when others => |
| raise Program_Error; |
| end case; |
| |
| return Name_Find (Unit_Name_Buffer); |
| end Get_Unit_Name; |
| |
| -------------------------- |
| -- Get_Unit_Name_String -- |
| -------------------------- |
| |
| procedure Get_Unit_Name_String |
| (N : Unit_Name_Type; |
| Suffix : Boolean := True) |
| is |
| Unit_Is_Body : Boolean; |
| |
| begin |
| Get_Decoded_Name_String (N); |
| Unit_Is_Body := Name_Buffer (Name_Len) = 'b'; |
| Set_Casing (Identifier_Casing (Source_Index (Main_Unit))); |
| |
| -- A special fudge, normally we don't have operator symbols present, |
| -- since it is always an error to do so. However, if we do, at this |
| -- stage it has the form: |
| |
| -- "and" |
| |
| -- and the %s or %b has already been eliminated so put 2 chars back |
| |
| if Name_Buffer (1) = '"' then |
| Name_Len := Name_Len + 2; |
| end if; |
| |
| -- Now adjust the %s or %b to (spec) or (body) |
| |
| if Suffix then |
| if Unit_Is_Body then |
| Name_Buffer (Name_Len - 1 .. Name_Len + 5) := " (body)"; |
| else |
| Name_Buffer (Name_Len - 1 .. Name_Len + 5) := " (spec)"; |
| end if; |
| end if; |
| |
| for J in 1 .. Name_Len loop |
| if Name_Buffer (J) = '-' then |
| Name_Buffer (J) := '.'; |
| end if; |
| end loop; |
| |
| -- Adjust Name_Len |
| |
| if Suffix then |
| Name_Len := Name_Len + (7 - 2); |
| else |
| Name_Len := Name_Len - 2; |
| end if; |
| end Get_Unit_Name_String; |
| |
| ---------------- |
| -- Has_Prefix -- |
| ---------------- |
| |
| function Has_Prefix (X, Prefix : String) return Boolean is |
| begin |
| if X'Length >= Prefix'Length then |
| declare |
| Slice : String renames |
| X (X'First .. X'First + Prefix'Length - 1); |
| begin |
| return Slice = Prefix; |
| end; |
| end if; |
| return False; |
| end Has_Prefix; |
| |
| ------------------ |
| -- Is_Body_Name -- |
| ------------------ |
| |
| function Is_Body_Name (N : Unit_Name_Type) return Boolean is |
| Buffer : Bounded_String; |
| begin |
| Append (Buffer, N); |
| return Buffer.Length > 2 |
| and then Buffer.Chars (Buffer.Length - 1) = '%' |
| and then Buffer.Chars (Buffer.Length) = 'b'; |
| end Is_Body_Name; |
| |
| ------------------- |
| -- Is_Child_Name -- |
| ------------------- |
| |
| function Is_Child_Name (N : Unit_Name_Type) return Boolean is |
| Buffer : Bounded_String; |
| |
| begin |
| Append (Buffer, N); |
| |
| while Buffer.Chars (Buffer.Length) /= '.' loop |
| if Buffer.Length = 1 then |
| return False; -- not a child or subunit name |
| else |
| Buffer.Length := Buffer.Length - 1; |
| end if; |
| end loop; |
| |
| return True; |
| end Is_Child_Name; |
| |
| --------------------------- |
| -- Is_Internal_Unit_Name -- |
| --------------------------- |
| |
| function Is_Internal_Unit_Name |
| (Name : String; |
| Renamings_Included : Boolean := True) return Boolean |
| is |
| Gnat : constant String := "gnat"; |
| |
| begin |
| if Name = Gnat then |
| return True; |
| end if; |
| |
| if Has_Prefix (Name, Prefix => Gnat & ".") then |
| return True; |
| end if; |
| |
| return Is_Predefined_Unit_Name (Name, Renamings_Included); |
| end Is_Internal_Unit_Name; |
| |
| ----------------------------- |
| -- Is_Predefined_Unit_Name -- |
| ----------------------------- |
| |
| function Is_Predefined_Unit_Name |
| (Name : String; |
| Renamings_Included : Boolean := True) return Boolean |
| is |
| Ada : constant String := "ada"; |
| Interfaces : constant String := "interfaces"; |
| System : constant String := "system"; |
| |
| begin |
| if Name = Ada |
| or else Name = Interfaces |
| or else Name = System |
| then |
| return True; |
| end if; |
| |
| if Has_Prefix (Name, Prefix => Ada & ".") |
| or else Has_Prefix (Name, Prefix => Interfaces & ".") |
| or else Has_Prefix (Name, Prefix => System & ".") |
| then |
| return True; |
| end if; |
| |
| if not Renamings_Included then |
| return False; |
| end if; |
| |
| -- The following are the predefined renamings |
| |
| return |
| Name = "calendar" |
| or else Name = "machine_code" |
| or else Name = "unchecked_conversion" |
| or else Name = "unchecked_deallocation" |
| or else Name = "direct_io" |
| or else Name = "io_exceptions" |
| or else Name = "sequential_io" |
| or else Name = "text_io"; |
| end Is_Predefined_Unit_Name; |
| |
| ------------------ |
| -- Is_Spec_Name -- |
| ------------------ |
| |
| function Is_Spec_Name (N : Unit_Name_Type) return Boolean is |
| Buffer : Bounded_String; |
| begin |
| Append (Buffer, N); |
| return Buffer.Length > 2 |
| and then Buffer.Chars (Buffer.Length - 1) = '%' |
| and then Buffer.Chars (Buffer.Length) = 's'; |
| end Is_Spec_Name; |
| |
| ----------------------- |
| -- Name_To_Unit_Name -- |
| ----------------------- |
| |
| function Name_To_Unit_Name (N : Name_Id) return Unit_Name_Type is |
| Buffer : Bounded_String; |
| begin |
| Append (Buffer, N); |
| Append (Buffer, "%s"); |
| return Name_Find (Buffer); |
| end Name_To_Unit_Name; |
| |
| --------------- |
| -- New_Child -- |
| --------------- |
| |
| function New_Child |
| (Old : Unit_Name_Type; |
| Newp : Unit_Name_Type) return Unit_Name_Type |
| is |
| P : Natural; |
| |
| begin |
| Get_Name_String (Old); |
| |
| declare |
| Child : constant String := Name_Buffer (1 .. Name_Len); |
| |
| begin |
| Get_Name_String (Newp); |
| Name_Len := Name_Len - 2; |
| |
| P := Child'Last; |
| while Child (P) /= '.' loop |
| P := P - 1; |
| end loop; |
| |
| while P <= Child'Last loop |
| Name_Len := Name_Len + 1; |
| Name_Buffer (Name_Len) := Child (P); |
| P := P + 1; |
| end loop; |
| |
| return Name_Find; |
| end; |
| end New_Child; |
| |
| -------------- |
| -- Uname_Ge -- |
| -------------- |
| |
| function Uname_Ge (Left, Right : Unit_Name_Type) return Boolean is |
| begin |
| return Left = Right or else Uname_Gt (Left, Right); |
| end Uname_Ge; |
| |
| -------------- |
| -- Uname_Gt -- |
| -------------- |
| |
| function Uname_Gt (Left, Right : Unit_Name_Type) return Boolean is |
| begin |
| return Left /= Right and then not Uname_Lt (Left, Right); |
| end Uname_Gt; |
| |
| -------------- |
| -- Uname_Le -- |
| -------------- |
| |
| function Uname_Le (Left, Right : Unit_Name_Type) return Boolean is |
| begin |
| return Left = Right or else Uname_Lt (Left, Right); |
| end Uname_Le; |
| |
| -------------- |
| -- Uname_Lt -- |
| -------------- |
| |
| function Uname_Lt (Left, Right : Unit_Name_Type) return Boolean is |
| Left_Name : String (1 .. Hostparm.Max_Name_Length); |
| Left_Length : Natural; |
| Right_Name : String renames Name_Buffer; |
| Right_Length : Natural renames Name_Len; |
| J : Natural; |
| |
| begin |
| pragma Warnings (Off, Right_Length); |
| -- Suppress warnings on Right_Length, used in pragma Assert |
| |
| if Left = Right then |
| return False; |
| end if; |
| |
| Get_Name_String (Left); |
| Left_Name (1 .. Name_Len + 1) := Name_Buffer (1 .. Name_Len + 1); |
| Left_Length := Name_Len; |
| Get_Name_String (Right); |
| J := 1; |
| |
| loop |
| exit when Left_Name (J) = '%'; |
| |
| if Right_Name (J) = '%' then |
| return False; -- left name is longer |
| end if; |
| |
| pragma Assert (J <= Left_Length and then J <= Right_Length); |
| |
| if Left_Name (J) /= Right_Name (J) then |
| return Left_Name (J) < Right_Name (J); -- parent names different |
| end if; |
| |
| J := J + 1; |
| end loop; |
| |
| -- Come here pointing to % in left name |
| |
| if Right_Name (J) /= '%' then |
| return True; -- right name is longer |
| end if; |
| |
| -- Here the parent names are the same and specs sort low. If neither is |
| -- a spec, then we are comparing the same name and we want a result of |
| -- False in any case. |
| |
| return Left_Name (J + 1) = 's'; |
| end Uname_Lt; |
| |
| --------------------- |
| -- Write_Unit_Name -- |
| --------------------- |
| |
| procedure Write_Unit_Name (N : Unit_Name_Type) is |
| begin |
| Get_Unit_Name_String (N); |
| Write_Str (Name_Buffer (1 .. Name_Len)); |
| end Write_Unit_Name; |
| |
| end Uname; |
