+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- U N A M E --
--- --
--- B o d y --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1992-2001, 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. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public 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 Hostparm;
-with Lib; use Lib;
-with Namet; use Namet;
-with Nlists; use Nlists;
-with Output; use Output;
-with Sinfo; use Sinfo;
-with Sinput; use Sinput;
-
-package body Uname is
-
- -------------------
- -- Get_Body_Name --
- -------------------
-
- function Get_Body_Name (N : Unit_Name_Type) return Unit_Name_Type is
- begin
- Get_Name_String (N);
-
- pragma Assert (Name_Len > 2
- and then Name_Buffer (Name_Len - 1) = '%'
- and then Name_Buffer (Name_Len) = 's');
-
- Name_Buffer (Name_Len) := 'b';
- return Name_Find;
- 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
- begin
- Get_Name_String (N);
-
- while Name_Buffer (Name_Len) /= '.' loop
- pragma Assert (Name_Len > 1); -- not a child or subunit name
- Name_Len := Name_Len - 1;
- end loop;
-
- Name_Buffer (Name_Len) := '%';
- Name_Len := Name_Len + 1;
- Name_Buffer (Name_Len) := 'b';
- return Name_Find;
-
- end Get_Parent_Body_Name;
-
- --------------------------
- -- Get_Parent_Spec_Name --
- --------------------------
-
- function Get_Parent_Spec_Name (N : Unit_Name_Type) return Unit_Name_Type is
- begin
- Get_Name_String (N);
-
- while Name_Buffer (Name_Len) /= '.' loop
- if Name_Len = 1 then
- return No_Name; -- not a child or subunit name
- else
- Name_Len := Name_Len - 1;
- end if;
- end loop;
-
- Name_Buffer (Name_Len) := '%';
- Name_Len := Name_Len + 1;
- Name_Buffer (Name_Len) := 's';
- return Name_Find;
-
- end Get_Parent_Spec_Name;
-
- -------------------
- -- Get_Spec_Name --
- -------------------
-
- function Get_Spec_Name (N : Unit_Name_Type) return Unit_Name_Type is
- begin
- Get_Name_String (N);
-
- pragma Assert (Name_Len > 2
- and then Name_Buffer (Name_Len - 1) = '%'
- and then Name_Buffer (Name_Len) = 'b');
-
- Name_Buffer (Name_Len) := 's';
- return Name_Find;
- end Get_Spec_Name;
-
- -------------------
- -- Get_Unit_Name --
- -------------------
-
- function Get_Unit_Name (N : Node_Id) return Unit_Name_Type is
-
- Unit_Name_Buffer : String (1 .. Hostparm.Max_Name_Length);
- -- Buffer used to build name of unit. Note that we cannot use the
- -- Name_Buffer in package Name_Table because we use it to read
- -- component names.
-
- Unit_Name_Length : Natural := 0;
- -- Length of name stored in Unit_Name_Buffer
-
- 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
- -- Should really check for max length exceeded here???
- Unit_Name_Length := Unit_Name_Length + 1;
- Unit_Name_Buffer (Unit_Name_Length) := C;
- end Add_Char;
-
- --------------
- -- Add_Name --
- --------------
-
- procedure Add_Name (Name : Name_Id) is
- begin
- Get_Name_String (Name);
-
- for J in 1 .. Name_Len loop
- Add_Char (Name_Buffer (J));
- end loop;
- end Add_Name;
-
- -------------------
- -- Add_Node_Name --
- -------------------
-
- procedure Add_Node_Name (Node : Node_Id) is
- Kind : Node_Kind := Nkind (Node);
-
- 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 Kind is
-
- when N_Identifier |
- N_Defining_Identifier |
- N_Defining_Operator_Symbol =>
-
- -- 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_Selected_Component |
- N_Expanded_Name =>
- Add_Node_Name (Prefix (Node));
- Add_Char ('.');
- Add_Node_Name (Selector_Name (Node));
-
- when N_Subprogram_Specification |
- N_Package_Specification =>
- Add_Node_Name (Defining_Unit_Name (Node));
-
- when N_Subprogram_Body |
- N_Subprogram_Declaration |
- N_Package_Declaration |
- N_Generic_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_Task_Body |
- N_Protected_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 =>
- Add_Node_Name (Get_Parent (Node));
- Add_Char ('.');
- Add_Node_Name (Defining_Identifier (Node));
-
- when N_Task_Body_Stub |
- N_Protected_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_Task_Type_Declaration |
- N_Single_Task_Declaration |
- N_Protected_Type_Declaration |
- N_Single_Protected_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) = N_Package_Specification
- or else Nkind (Node) in 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_Subprogram_Declaration |
- N_Package_Declaration |
- N_With_Clause |
- N_Pragma |
- N_Generic_Instantiation |
- N_Package_Renaming_Declaration |
- N_Subprogram_Renaming_Declaration |
- N_Generic_Renaming_Declaration |
- N_Single_Task_Declaration |
- N_Single_Protected_Declaration |
- N_Task_Type_Declaration |
- N_Protected_Type_Declaration =>
-
- Add_Char ('s');
-
- when N_Subprogram_Body |
- N_Package_Body |
- N_Subunit |
- N_Body_Stub |
- N_Task_Body |
- N_Protected_Body |
- N_Identifier |
- N_Selected_Component =>
-
- Add_Char ('b');
-
- when others =>
- raise Program_Error;
- end case;
-
- Name_Buffer (1 .. Unit_Name_Length) :=
- Unit_Name_Buffer (1 .. Unit_Name_Length);
- Name_Len := Unit_Name_Length;
- return Name_Find;
-
- end Get_Unit_Name;
-
- --------------------------
- -- Get_Unit_Name_String --
- --------------------------
-
- procedure Get_Unit_Name_String (N : Unit_Name_Type) 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)), Mixed_Case);
-
- -- 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 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;
-
- for J in 1 .. Name_Len loop
- if Name_Buffer (J) = '-' then
- Name_Buffer (J) := '.';
- end if;
- end loop;
-
- Name_Len := Name_Len + (7 - 2);
- end Get_Unit_Name_String;
-
- ------------------
- -- Is_Body_Name --
- ------------------
-
- function Is_Body_Name (N : Unit_Name_Type) return Boolean is
- begin
- Get_Name_String (N);
- return Name_Len > 2
- and then Name_Buffer (Name_Len - 1) = '%'
- and then Name_Buffer (Name_Len) = 'b';
- end Is_Body_Name;
-
- -------------------
- -- Is_Child_Name --
- -------------------
-
- function Is_Child_Name (N : Unit_Name_Type) return Boolean is
- J : Natural;
-
- begin
- Get_Name_String (N);
- J := Name_Len;
-
- while Name_Buffer (J) /= '.' loop
- if J = 1 then
- return False; -- not a child or subunit name
- else
- J := J - 1;
- end if;
- end loop;
-
- return True;
- end Is_Child_Name;
-
- ------------------
- -- Is_Spec_Name --
- ------------------
-
- function Is_Spec_Name (N : Unit_Name_Type) return Boolean is
- begin
- Get_Name_String (N);
- return Name_Len > 2
- and then Name_Buffer (Name_Len - 1) = '%'
- and then Name_Buffer (Name_Len) = 's';
- end Is_Spec_Name;
-
- -----------------------
- -- Name_To_Unit_Name --
- -----------------------
-
- function Name_To_Unit_Name (N : Name_Id) return Unit_Name_Type is
- begin
- Get_Name_String (N);
- Name_Buffer (Name_Len + 1) := '%';
- Name_Buffer (Name_Len + 2) := 's';
- Name_Len := Name_Len + 2;
- return Name_Find;
- 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 : 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;
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