-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2003, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2007, 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- --
-- 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. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
with Nmake; use Nmake;
with Output; use Output;
with Opt; use Opt;
+with Restrict; use Restrict;
with Sem; use Sem;
with Sem_Ch7; use Sem_Ch7;
+with Sem_Dist; use Sem_Dist;
with Sem_Util; use Sem_Util;
with Sinfo; use Sinfo;
with Stand; use Stand;
package body Rtsfind is
RTE_Available_Call : Boolean := False;
- -- Set True during call to RTE from RTE_Available. Tells RTE to set
- -- RTE_Is_Available to False rather than generating an error message.
+ -- Set True during call to RTE from RTE_Available (or from call to
+ -- RTE_Record_Component from RTE_Record_Component_Available). Tells
+ -- the called subprogram to set RTE_Is_Available to False rather than
+ -- generating an error message.
RTE_Is_Available : Boolean;
-- Set True by RTE_Available on entry. When RTE_Available_Call is set
-- a unit is loaded to contain the defining entity for the unit, the
-- unit name, and the unit number.
+ -- Note that a unit can be loaded either by a call to find an entity
+ -- within the unit (e.g. RTE), or by an explicit with of the unit. In
+ -- the latter case it is critical to make a call to Set_RTU_Loaded to
+ -- ensure that the entry in this table reflects the load.
+
type RT_Unit_Table_Record is record
Entity : Entity_Id;
Uname : Unit_Name_Type;
-- first time, its ID is stored in this array, so that subsequent calls
-- for the same entity can be satisfied immediately.
+ -- NOTE: In order to avoid conflicts between record components and subprgs
+ -- that have the same name (ie. subprogram External_Tag and component
+ -- External_Tag of package Ada.Tags) this table is not used with
+ -- Record_Components.
+
RE_Table : array (RE_Id) of Entity_Id;
--------------------------
-- Local Subprograms --
-----------------------
+ function Check_CRT (E : RE_Id; Eid : Entity_Id) return Entity_Id;
+ -- Check entity Eid to ensure that configurable run-time restrictions
+ -- are met. May generate an error message and raise RE_Not_Available
+ -- if the entity E does not exist (i.e. Eid is Empty)
+
procedure Entity_Not_Defined (Id : RE_Id);
-- Outputs error messages for an entity that is not defined in the
-- run-time library (the form of the error message is tailored for
-- no run time/configurable run time mode as required).
+ function Get_Unit_Name (U_Id : RTU_Id) return Unit_Name_Type;
+ -- Retrieves the Unit Name given a unit id represented by its
+ -- enumeration value in RTU_Id.
+
procedure Load_Fail (S : String; U_Id : RTU_Id; Id : RE_Id);
-- Internal procedure called if we can't sucessfully locate or
-- process a run-time unit. The parameters give information about
-- a normal situation in configurable run-time mode (and the message in
-- this case is suppressed unless we are operating in All_Errors_Mode).
- function Get_Unit_Name (U_Id : RTU_Id) return Unit_Name_Type;
- -- Retrieves the Unit Name given a unit id represented by its
- -- enumaration value in RTU_Id.
-
procedure Load_RTU
(U_Id : RTU_Id;
Id : RE_Id := RE_Null;
Use_Setting : Boolean := False);
-- Load the unit whose Id is given if not already loaded. The unit is
-- loaded, analyzed, and added to the WITH list, and the entry in
- -- RT_Unit_Table is updated to reflect the load. The second parameter
- -- indicates the initial setting for the Is_Potentially_Use_Visible
+ -- RT_Unit_Table is updated to reflect the load. Use_Setting is used
+ -- to indicate the initial setting for the Is_Potentially_Use_Visible
-- flag of the entity for the loaded unit (if it is indeed loaded).
-- A value of False means nothing special need be done. A value of
-- True indicates that this flag must be set to True. It is needed
-- only in the Text_IO_Kludge procedure, which may materialize an
- -- entity of Text_IO (or Wide_Text_IO) that was previously unknown.
+ -- entity of Text_IO (or [Wide_]Wide_Text_IO) that was previously unknown.
-- Id is the RE_Id value of the entity which was originally requested.
-- Id is used only for error message detail, and if it is RE_Null, then
-- the attempt to output the entity name is ignored.
+ function Make_Unit_Name (E : RE_Id; N : Node_Id) return Node_Id;
+ -- If the unit is a child unit, build fully qualified name for use in
+ -- With_Clause.
+
procedure Output_Entity_Name (Id : RE_Id; Msg : String);
-- Output continuation error message giving qualified name of entity
-- corresponding to Id, appending the string given by Msg. This call
-- is only effective in All_Errors mode.
function RE_Chars (E : RE_Id) return Name_Id;
- -- Given a RE_Id value returns the Chars of the corresponding entity.
+ -- Given a RE_Id value returns the Chars of the corresponding entity
procedure RTE_Error_Msg (Msg : String);
-- Generates a message by calling Error_Msg_N specifying Current_Error_Node
-- used if you are sure that the message comes directly or indirectly from
-- a call to the RTE function.
+ ---------------
+ -- Check_CRT --
+ ---------------
+
+ function Check_CRT (E : RE_Id; Eid : Entity_Id) return Entity_Id is
+ U_Id : constant RTU_Id := RE_Unit_Table (E);
+
+ begin
+ if No (Eid) then
+ Entity_Not_Defined (E);
+ raise RE_Not_Available;
+
+ -- Entity is available
+
+ else
+ -- If in No_Run_Time mode and entity is not in one of the
+ -- specially permitted units, raise the exception.
+
+ if No_Run_Time_Mode
+ and then not OK_No_Run_Time_Unit (U_Id)
+ then
+ Entity_Not_Defined (E);
+ raise RE_Not_Available;
+ end if;
+
+ -- Otherwise entity is accessible
+
+ return Eid;
+ end if;
+ end Check_CRT;
+
+ ------------------------
+ -- Entity_Not_Defined --
+ ------------------------
+
+ procedure Entity_Not_Defined (Id : RE_Id) is
+ begin
+ if No_Run_Time_Mode then
+
+ -- If the error occurs when compiling the body of a predefined
+ -- unit for inlining purposes, the body must be illegal in this
+ -- mode, and there is no point in continuing.
+
+ if Is_Predefined_File_Name
+ (Unit_File_Name (Get_Source_Unit (Sloc (Current_Error_Node))))
+ then
+ Error_Msg_N
+ ("construct not allowed in no run time mode!",
+ Current_Error_Node);
+ raise Unrecoverable_Error;
+
+ else
+ RTE_Error_Msg ("|construct not allowed in no run time mode");
+ end if;
+
+ elsif Configurable_Run_Time_Mode then
+ RTE_Error_Msg ("|construct not allowed in this configuration>");
+ else
+ RTE_Error_Msg ("run-time configuration error");
+ end if;
+
+ Output_Entity_Name (Id, "not defined");
+ end Entity_Not_Defined;
+
-------------------
-- Get_Unit_Name --
-------------------
elsif U_Id in Ada_Wide_Text_IO_Child then
Name_Buffer (17) := '.';
+
+ elsif U_Id in Ada_Wide_Wide_Text_IO_Child then
+ Name_Buffer (22) := '.';
end if;
elsif U_Id in Interfaces_Child then
return
Nkind (Prf) = N_Identifier
and then
- (Chars (Prf) = Name_Text_IO or else Chars (Prf) = Name_Wide_Text_IO)
+ (Chars (Prf) = Name_Text_IO
+ or else
+ Chars (Prf) = Name_Wide_Text_IO
+ or else
+ Chars (Prf) = Name_Wide_Wide_Text_IO)
and then
Nkind (Sel) = N_Identifier
and then
Chars (Sel) in Text_IO_Package_Name;
end Is_Text_IO_Kludge_Unit;
- ------------------------
- -- Entity_Not_Defined --
- ------------------------
-
- procedure Entity_Not_Defined (Id : RE_Id) is
- begin
- if No_Run_Time_Mode then
- RTE_Error_Msg ("|construct not allowed in no run time mode");
- elsif Configurable_Run_Time_Mode then
- RTE_Error_Msg ("|construct not allowed in this configuration>");
- else
- RTE_Error_Msg ("run-time configuration error");
- end if;
-
- Output_Entity_Name (Id, "not defined");
- end Entity_Not_Defined;
-
---------------
-- Load_Fail --
---------------
if S /= "not found"
or else not Configurable_Run_Time_Mode
+ or else All_Errors_Mode
then
M (1 .. 6) := "\file ";
P := 6;
Output_Entity_Name (Id, "not available");
end if;
- raise RE_Not_Available;
+ -- In configurable run time mode, we raise RE_Not_Available, and we hope
+ -- the caller deals gracefully with this. If we are in normal full run
+ -- time mode, a load failure is considered fatal and unrecoverable.
+
+ if Configurable_Run_Time_Mode then
+ raise RE_Not_Available;
+ else
+ raise Unrecoverable_Error;
+ end if;
end Load_Fail;
--------------
-- Indicate those that must be restored.
procedure Restore_Private_Visibility;
- -- Restore the visibility of ancestors after compiling RTU.
+ -- Restore the visibility of ancestors after compiling RTU
--------------------------------
-- Restore_Private_Visibility --
return;
end if;
+ -- Note if secondary stack is used
+
+ if U_Id = System_Secondary_Stack then
+ Opt.Sec_Stack_Used := True;
+ end if;
+
-- Otherwise we need to load the unit, First build unit name
-- from the enumeration literal name in type RTU_Id.
Set_Analyzed (Cunit (Current_Sem_Unit), True);
if not Analyzed (Cunit (U.Unum)) then
- Save_Private_Visibility;
- Semantics (Cunit (U.Unum));
- Restore_Private_Visibility;
- if Fatal_Error (U.Unum) then
- Load_Fail ("had semantic errors", U_Id, Id);
+ -- If the unit is already loaded through a limited_with clauses,
+ -- the relevant entities must already be available. We do not
+ -- want to load and analyze the unit because this would create
+ -- a real semantic dependence when the purpose of the limited_with
+ -- is precisely to avoid such.
+
+ if From_With_Type (Cunit_Entity (U.Unum)) then
+ null;
+
+ else
+ Save_Private_Visibility;
+ Semantics (Cunit (U.Unum));
+ Restore_Private_Visibility;
+
+ if Fatal_Error (U.Unum) then
+ Load_Fail ("had semantic errors", U_Id, Id);
+ end if;
end if;
end if;
end if;
end Load_RTU;
+ --------------------
+ -- Make_Unit_Name --
+ --------------------
+
+ function Make_Unit_Name (E : RE_Id; N : Node_Id) return Node_Id is
+ U_Id : constant RTU_Id := RE_Unit_Table (E);
+ U : RT_Unit_Table_Record renames RT_Unit_Table (U_Id);
+ Nam : Node_Id;
+ Scop : Entity_Id;
+
+ begin
+ Nam := New_Reference_To (U.Entity, Standard_Location);
+ Scop := Scope (U.Entity);
+
+ if Nkind (N) = N_Defining_Program_Unit_Name then
+ while Scop /= Standard_Standard loop
+ Nam :=
+ Make_Expanded_Name (Standard_Location,
+ Chars => Chars (U.Entity),
+ Prefix => New_Reference_To (Scop, Standard_Location),
+ Selector_Name => Nam);
+ Set_Entity (Nam, U.Entity);
+
+ Scop := Scope (Scop);
+ end loop;
+ end if;
+
+ return Nam;
+ end Make_Unit_Name;
+
-----------------------
-- Output_Entity_Name --
------------------------
Save_Front_End_Inlining : Boolean;
- function Check_CRT (Eid : Entity_Id) return Entity_Id;
- -- Check entity Eid to ensure that configurable run-time restrictions
- -- are met. May generate an error message and raise RE_Not_Available
- -- if the entity E does not exist (i.e. Eid is Empty)
-
procedure Check_RPC;
-- Reject programs that make use of distribution features not supported
-- on the current target. On such targets (VMS, Vxworks, others?) we
-- This function is used when entity E is in this compilation's main
-- unit. It gets the value from the already compiled declaration.
- function Make_Unit_Name (N : Node_Id) return Node_Id;
- -- If the unit is a child unit, build fully qualified name for use
- -- in With_Clause.
-
- ---------------
- -- Check_CRT --
- ---------------
-
- function Check_CRT (Eid : Entity_Id) return Entity_Id is
- begin
- if No (Eid) then
- Entity_Not_Defined (E);
- raise RE_Not_Available;
-
- -- Entity is available
-
- else
- -- If in No_Run_Time mode and entity is not in one of the
- -- specially permitted units, raise the exception.
-
- if No_Run_Time_Mode
- and then not OK_No_Run_Time_Unit (U_Id)
- then
- Entity_Not_Defined (E);
- raise RE_Not_Available;
- end if;
-
- -- Otherwise entity is accessible
-
- return Eid;
- end if;
- end Check_CRT;
-
---------------
-- Check_RPC --
---------------
procedure Check_RPC is
- Body_Name : Unit_Name_Type;
- Unum : Unit_Number_Type;
-
begin
-- Bypass this check if debug flag -gnatdR set
-- Otherwise we need the check if we are going after one of
-- the critical entities in System.RPC in stubs mode.
+ -- ??? Should we do this for other s-parint entities too?
+
if (Distribution_Stub_Mode = Generate_Receiver_Stub_Body
or else
Distribution_Stub_Mode = Generate_Caller_Stub_Body)
and then (E = RE_Do_Rpc
- or else E = RE_Do_Apc
- or else E = RE_Params_Stream_Type
- or else E = RE_RPC_Receiver)
+ or else
+ E = RE_Do_Apc
+ or else
+ E = RE_Params_Stream_Type
+ or else
+ E = RE_Request_Access)
+ and then Get_PCS_Name = Name_No_DSA
then
- -- Load body of System.Rpc, and abort if this is the body that is
- -- provided by GNAT, for which these features are not supported
- -- on current target. We identify the gnat body by the presence
- -- of a local entity called Gnat in the first declaration.
-
- Lib_Unit := Unit (Cunit (U.Unum));
- Body_Name := Get_Body_Name (Get_Unit_Name (Lib_Unit));
- Unum :=
- Load_Unit
- (Load_Name => Body_Name,
- Required => False,
- Subunit => False,
- Error_Node => Empty,
- Renamings => True);
-
- if Unum /= No_Unit then
- declare
- Decls : constant List_Id :=
- Declarations (Unit (Cunit (Unum)));
-
- begin
- if Present (Decls)
- and then Nkind (First (Decls)) = N_Object_Declaration
- and then
- Chars (Defining_Identifier (First (Decls))) = Name_Gnat
- then
- Set_Standard_Error;
- Write_Str ("distribution feature not supported");
- Write_Eol;
- raise Unrecoverable_Error;
- end if;
- end;
- end if;
+ Set_Standard_Error;
+ Write_Str ("distribution feature not supported");
+ Write_Eol;
+ raise Unrecoverable_Error;
end if;
end Check_RPC;
- ------------------------
- -- Find_System_Entity --
- ------------------------
+ -----------------------
+ -- Find_Local_Entity --
+ -----------------------
function Find_Local_Entity (E : RE_Id) return Entity_Id is
- RE_Str : String renames RE_Id'Image (E);
+ RE_Str : constant String := RE_Id'Image (E);
+ Nam : Name_Id;
Ent : Entity_Id;
Save_Nam : constant String := Name_Buffer (1 .. Name_Len);
Name_Buffer (1 .. Name_Len) :=
RE_Str (RE_Str'First + 3 .. RE_Str'Last);
- Ent := Entity_Id (Get_Name_Table_Info (Name_Find));
+ Nam := Name_Find;
+ Ent := Entity_Id (Get_Name_Table_Info (Nam));
Name_Len := Save_Nam'Length;
Name_Buffer (1 .. Name_Len) := Save_Nam;
return Ent;
end Find_Local_Entity;
- --------------------
- -- Make_Unit_Name --
- --------------------
-
- function Make_Unit_Name (N : Node_Id) return Node_Id is
- Nam : Node_Id;
- Scop : Entity_Id;
-
- begin
- Nam := New_Reference_To (U.Entity, Standard_Location);
- Scop := Scope (U.Entity);
-
- if Nkind (N) = N_Defining_Program_Unit_Name then
- while Scop /= Standard_Standard loop
- Nam :=
- Make_Expanded_Name (Standard_Location,
- Chars => Chars (U.Entity),
- Prefix => New_Reference_To (Scop, Standard_Location),
- Selector_Name => Nam);
- Set_Entity (Nam, U.Entity);
-
- Scop := Scope (Scop);
- end loop;
- end if;
-
- return Nam;
- end Make_Unit_Name;
-
-- Start of processing for RTE
begin
and then Analyzed (Main_Unit_Entity)
and then not Is_Child_Unit (Main_Unit_Entity)
then
- return Check_CRT (Find_Local_Entity (E));
+ return Check_CRT (E, Find_Local_Entity (E));
end if;
Save_Front_End_Inlining := Front_End_Inlining;
pragma Assert (Nkind (Lib_Unit) = N_Package_Declaration);
Ename := RE_Chars (E);
- -- First we search the package entity chain
+ -- First we search the package entity chain. If the package
+ -- only has a limited view, scan the corresponding list of
+ -- incomplete types.
+ if From_With_Type (U.Entity) then
+ Pkg_Ent := First_Entity (Limited_View (U.Entity));
+ else
Pkg_Ent := First_Entity (U.Entity);
- while Present (Pkg_Ent) loop
- if Ename = Chars (Pkg_Ent) then
- RE_Table (E) := Pkg_Ent;
- Check_RPC;
- goto Found;
- end if;
+ end if;
+
+ while Present (Pkg_Ent) loop
+ if Ename = Chars (Pkg_Ent) then
+ RE_Table (E) := Pkg_Ent;
+ Check_RPC;
+ goto Found;
+ end if;
- Next_Entity (Pkg_Ent);
- end loop;
+ Next_Entity (Pkg_Ent);
+ end loop;
-- If we did not find the entity in the package entity chain,
-- then check if the package entity itself matches. Note that
-- a WITH if the current unit is part of the extended main code
-- unit, and if we have not already added the with. The WITH is
-- added to the appropriate unit (the current one). We do not need
- -- to generate a WITH for an
+ -- to generate a WITH for a call issued from RTE_Available.
<<Found>>
if (not U.Withed)
Make_With_Clause (Standard_Location,
Name =>
Make_Unit_Name
- (Defining_Unit_Name (Specification (Lib_Unit))));
+ (E, Defining_Unit_Name (Specification (Lib_Unit))));
Set_Library_Unit (Withn, Cunit (U.Unum));
Set_Corresponding_Spec (Withn, U.Entity);
Set_First_Name (Withn, True);
Mark_Rewrite_Insertion (Withn);
Append (Withn, Context_Items (Cunit (Current_Sem_Unit)));
+ Check_Restriction_No_Dependence (Name (Withn), Current_Error_Node);
end;
end if;
Front_End_Inlining := Save_Front_End_Inlining;
- return Check_CRT (RE_Table (E));
+ return Check_CRT (E, RE_Table (E));
end RTE;
-------------------
return False;
end RTE_Available;
+ --------------------------
+ -- RTE_Record_Component --
+ --------------------------
+
+ function RTE_Record_Component (E : RE_Id) return Entity_Id is
+ U_Id : constant RTU_Id := RE_Unit_Table (E);
+ U : RT_Unit_Table_Record renames RT_Unit_Table (U_Id);
+ E1 : Entity_Id;
+ Ename : Name_Id;
+ Found_E : Entity_Id;
+ Lib_Unit : Node_Id;
+ Pkg_Ent : Entity_Id;
+
+ -- The following flag is used to disable front-end inlining when
+ -- RTE_Record_Component is invoked. This prevents the analysis of other
+ -- runtime bodies when a particular spec is loaded through Rtsfind. This
+ -- is both efficient, and it prevents spurious visibility conflicts
+ -- between use-visible user entities, and entities in run-time packages.
+
+ -- In configurable run-time mode, subprograms marked Inlined_Always must
+ -- be inlined, so in the case we retain the Front_End_Inlining mode.
+
+ Save_Front_End_Inlining : Boolean;
+
+ begin
+ -- Note: Contrary to subprogram RTE, there is no need to do any special
+ -- management with package system.ads because it has no record type
+ -- declarations.
+
+ Save_Front_End_Inlining := Front_End_Inlining;
+ Front_End_Inlining := Configurable_Run_Time_Mode;
+
+ -- Load unit if unit not previously loaded
+
+ if not Present (U.Entity) then
+ Load_RTU (U_Id, Id => E);
+ end if;
+
+ Lib_Unit := Unit (Cunit (U.Unum));
+
+ pragma Assert (Nkind (Lib_Unit) = N_Package_Declaration);
+ Ename := RE_Chars (E);
+
+ -- Search the entity in the components of record type declarations
+ -- found in the package entity chain.
+
+ Found_E := Empty;
+ Pkg_Ent := First_Entity (U.Entity);
+ Search : while Present (Pkg_Ent) loop
+ if Is_Record_Type (Pkg_Ent) then
+ E1 := First_Entity (Pkg_Ent);
+ while Present (E1) loop
+ if Ename = Chars (E1) then
+ pragma Assert (not Present (Found_E));
+ Found_E := E1;
+ end if;
+
+ Next_Entity (E1);
+ end loop;
+ end if;
+
+ Next_Entity (Pkg_Ent);
+ end loop Search;
+
+ -- If we didn't find the entity we want, something is wrong. The
+ -- appropriate action will be taken by Check_CRT when we exit.
+
+ -- Cenerate a with-clause if the current unit is part of the extended
+ -- main code unit, and if we have not already added the with. The clause
+ -- is added to the appropriate unit (the current one). We do not need to
+ -- generate it for a call issued from RTE_Component_Available.
+
+ if (not U.Withed)
+ and then
+ In_Extended_Main_Code_Unit (Cunit_Entity (Current_Sem_Unit))
+ and then not RTE_Available_Call
+ then
+ U.Withed := True;
+
+ declare
+ Withn : Node_Id;
+ Lib_Unit : Node_Id;
+
+ begin
+ Lib_Unit := Unit (Cunit (U.Unum));
+ Withn :=
+ Make_With_Clause (Standard_Location,
+ Name =>
+ Make_Unit_Name
+ (E, Defining_Unit_Name (Specification (Lib_Unit))));
+ Set_Library_Unit (Withn, Cunit (U.Unum));
+ Set_Corresponding_Spec (Withn, U.Entity);
+ Set_First_Name (Withn, True);
+ Set_Implicit_With (Withn, True);
+
+ Mark_Rewrite_Insertion (Withn);
+ Append (Withn, Context_Items (Cunit (Current_Sem_Unit)));
+ Check_Restriction_No_Dependence (Name (Withn), Current_Error_Node);
+ end;
+ end if;
+
+ Front_End_Inlining := Save_Front_End_Inlining;
+ return Check_CRT (E, Found_E);
+ end RTE_Record_Component;
+
+ ------------------------------------
+ -- RTE_Record_Component_Available --
+ ------------------------------------
+
+ function RTE_Record_Component_Available (E : RE_Id) return Boolean is
+ Dummy : Entity_Id;
+ pragma Warnings (Off, Dummy);
+
+ Result : Boolean;
+
+ Save_RTE_Available_Call : constant Boolean := RTE_Available_Call;
+ Save_RTE_Is_Available : constant Boolean := RTE_Is_Available;
+ -- These are saved recursively because the call to load a unit
+ -- caused by an upper level call may perform a recursive call
+ -- to this routine during analysis of the corresponding unit.
+
+ begin
+ RTE_Available_Call := True;
+ RTE_Is_Available := True;
+ Dummy := RTE_Record_Component (E);
+ Result := RTE_Is_Available;
+ RTE_Available_Call := Save_RTE_Available_Call;
+ RTE_Is_Available := Save_RTE_Is_Available;
+ return Result;
+
+ exception
+ when RE_Not_Available =>
+ RTE_Available_Call := Save_RTE_Available_Call;
+ RTE_Is_Available := Save_RTE_Is_Available;
+ return False;
+ end RTE_Record_Component_Available;
+
-------------------
-- RTE_Error_Msg --
-------------------
-- Bump count of violations if we are in configurable run-time
-- mode and this is not a continuation message.
- if Configurable_Run_Time_Mode and then Msg (1) /= '\' then
+ if Configurable_Run_Time_Mode and then Msg (Msg'First) /= '\' then
Configurable_Run_Time_Violations :=
Configurable_Run_Time_Violations + 1;
end if;
end if;
end RTE_Error_Msg;
+ ----------------
+ -- RTU_Entity --
+ ----------------
+
+ function RTU_Entity (U : RTU_Id) return Entity_Id is
+ begin
+ return RT_Unit_Table (U).Entity;
+ end RTU_Entity;
+
+ ----------------
+ -- RTU_Loaded --
+ ----------------
+
+ function RTU_Loaded (U : RTU_Id) return Boolean is
+ begin
+ return Present (RT_Unit_Table (U).Entity);
+ end RTU_Loaded;
+
+ --------------------
+ -- Set_RTU_Loaded --
+ --------------------
+
+ procedure Set_RTU_Loaded (N : Node_Id) is
+ Loc : constant Source_Ptr := Sloc (N);
+ Unum : constant Unit_Number_Type := Get_Source_Unit (Loc);
+ Uname : constant Unit_Name_Type := Unit_Name (Unum);
+ E : constant Entity_Id :=
+ Defining_Entity (Unit (Cunit (Unum)));
+ begin
+ pragma Assert (Is_Predefined_File_Name (Unit_File_Name (Unum)));
+
+ -- Loop through entries in RTU table looking for matching entry
+
+ for U_Id in RTU_Id'Range loop
+
+ -- Here we have a match
+
+ if Get_Unit_Name (U_Id) = Uname then
+ declare
+ U : RT_Unit_Table_Record renames RT_Unit_Table (U_Id);
+ -- The RT_Unit_Table entry that may need updating
+
+ begin
+ -- If entry is not set, set it now
+
+ if No (U.Entity) then
+ U.Entity := E;
+ U.Uname := Get_Unit_Name (U_Id);
+ U.Unum := Unum;
+ U.Withed := False;
+ end if;
+
+ return;
+ end;
+ end if;
+ end loop;
+ end Set_RTU_Loaded;
+
--------------------
-- Text_IO_Kludge --
--------------------
Name_Integer_IO => Ada_Wide_Text_IO_Integer_IO,
Name_Modular_IO => Ada_Wide_Text_IO_Modular_IO);
+ Wide_Wide_Name_Map : constant Name_Map_Type := Name_Map_Type'(
+ Name_Decimal_IO => Ada_Wide_Wide_Text_IO_Decimal_IO,
+ Name_Enumeration_IO => Ada_Wide_Wide_Text_IO_Enumeration_IO,
+ Name_Fixed_IO => Ada_Wide_Wide_Text_IO_Fixed_IO,
+ Name_Float_IO => Ada_Wide_Wide_Text_IO_Float_IO,
+ Name_Integer_IO => Ada_Wide_Wide_Text_IO_Integer_IO,
+ Name_Modular_IO => Ada_Wide_Wide_Text_IO_Modular_IO);
+
begin
-- Nothing to do if name is not identifier or a selected component
-- whose selector_name is not an identifier.
-- Nothing to do if name is not one of the Text_IO subpackages
-- Otherwise look through loaded units, and if we find Text_IO
- -- or Wide_Text_IO already loaded, then load the proper child.
+ -- or [Wide_]Wide_Text_IO already loaded, then load the proper child.
if Chrs in Text_IO_Package_Name then
for U in Main_Unit .. Last_Unit loop
if Name_Len = 12 then
- -- Here is where we do the loads if we find one of the
- -- units Ada.Text_IO or Ada.Wide_Text_IO. An interesting
- -- detail is that these units may already be used (i.e.
- -- their In_Use flags may be set). Normally when the In_Use
- -- flag is set, the Is_Potentially_Use_Visible flag of all
- -- entities in the package is set, but the new entity we
- -- are mysteriously adding was not there to have its flag
- -- set at the time. So that's why we pass the extra parameter
- -- to RTU_Find, to make sure the flag does get set now.
- -- Given that those generic packages are in fact child units,
- -- we must indicate that they are visible.
+ -- Here is where we do the loads if we find one of the units
+ -- Ada.Text_IO or Ada.[Wide_]Wide_Text_IO. An interesting
+ -- detail is that these units may already be used (i.e. their
+ -- In_Use flags may be set). Normally when the In_Use flag is
+ -- set, the Is_Potentially_Use_Visible flag of all entities in
+ -- the package is set, but the new entity we are mysteriously
+ -- adding was not there to have its flag set at the time. So
+ -- that's why we pass the extra parameter to RTU_Find, to make
+ -- sure the flag does get set now. Given that those generic
+ -- packages are in fact child units, we must indicate that
+ -- they are visible.
if Name_Buffer (1 .. 12) = "a-textio.ads" then
Load_RTU
Use_Setting => In_Use (Cunit_Entity (U)));
Set_Is_Visible_Child_Unit
(RT_Unit_Table (Wide_Name_Map (Chrs)).Entity);
+
+ elsif Name_Buffer (1 .. 12) = "a-ztexio.ads" then
+ Load_RTU
+ (Wide_Wide_Name_Map (Chrs),
+ Use_Setting => In_Use (Cunit_Entity (U)));
+ Set_Is_Visible_Child_Unit
+ (RT_Unit_Table (Wide_Wide_Name_Map (Chrs)).Entity);
end if;
end if;
end loop;
end if;
+
+ exception
+ -- Generate error message if run-time unit not available
+
+ when RE_Not_Available =>
+ Error_Msg_N ("& not available", Nam);
end Text_IO_Kludge;
end Rtsfind;
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