-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2005 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2010, 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- --
+-- 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 COPYING. If not, write --
--- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
--- Boston, MA 02110-1301, USA. --
+-- 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. --
(Cunit : Node_Id;
Loc : Source_Ptr;
SR_Present : Boolean);
- -- This procedure is used to generate a line of output for the a unit in
+ -- This procedure is used to generate a line of output for a unit in
-- the source program. Cunit is the node for the compilation unit, and
-- Loc is the source location for the start of the unit in the source
-- file (which is not necessarily the Sloc of the Cunit node). This
Config_Pragmas : List_Id;
P : Node_Id;
SR_Present : Boolean;
+ No_Body : Boolean;
- Cunit_Error_Flag : Boolean := False;
+ Cunit_Error_Flag : Boolean := False;
-- This flag is set True if we have to scan for a compilation unit
-- token. It is used to ensure clean termination in such cases by
- -- not insisting on being at the end of file, and, in the sytax only
+ -- not insisting on being at the end of file, and, in the syntax only
-- case by not scanning for additional compilation units.
Cunit_Location : Source_Ptr;
Config_Pragmas := No_List;
- -- If we have an initial Source_Reference pragma, then remember
- -- the fact to generate an NR parameter in the output line.
+ -- If we have an initial Source_Reference pragma, then remember the fact
+ -- to generate an NR parameter in the output line.
SR_Present := False;
+ -- If we see a pragma No_Body, remember not to complain about no body
+
+ No_Body := False;
+
if Token = Tok_Pragma then
Save_Scan_State (Scan_State);
Item := P_Pragma;
if Item = Error
- or else Chars (Item) /= Name_Source_Reference
+ or else Pragma_Name (Item) /= Name_Source_Reference
then
Restore_Scan_State (Scan_State);
Save_Scan_State (Scan_State);
Item := P_Pragma;
+ if Item /= Error and then Pragma_Name (Item) = Name_No_Body then
+ No_Body := True;
+ end if;
+
if Item = Error
- or else Chars (Item) > Last_Configuration_Pragma_Name
+ or else not Is_Configuration_Pragma_Name (Pragma_Name (Item))
then
Restore_Scan_State (Scan_State);
exit;
else
Item := First (Config_Pragmas);
Error_Msg_N
- ("cannot compile configuration pragmas with gcc", Item);
+ ("cannot compile configuration pragmas with gcc!", Item);
Error_Msg_N
- ("use gnatchop -c to process configuration pragmas!", Item);
+ ("\use gnatchop -c to process configuration pragmas!", Item);
raise Unrecoverable_Error;
end if;
if Token = Tok_Private then
Private_Sloc := Token_Ptr;
Set_Keyword_Casing (Current_Source_File, Determine_Token_Casing);
- if Style_Check then Style.Check_Indentation; end if;
+
+ if Style_Check then
+ Style.Check_Indentation;
+ end if;
Save_Scan_State (Scan_State); -- at PRIVATE
Scan; -- past PRIVATE
else
if Operating_Mode = Check_Syntax and then Token = Tok_EOF then
- Error_Msg_SC ("?file contains no compilation units");
+
+ -- Do not complain if there is a pragma No_Body
+
+ if not No_Body then
+ Error_Msg_SC ("?file contains no compilation units");
+ end if;
else
Error_Msg_SC ("compilation unit expected");
Cunit_Error_Flag := True;
-- it hasn't already been done on seeing a WITH or PRIVATE.
Set_Keyword_Casing (Current_Source_File, Determine_Token_Casing);
- if Style_Check then Style.Check_Indentation; end if;
+
+ if Style_Check then
+ Style.Check_Indentation;
+ end if;
-- Remaining processing depends on particular type of compilation unit
-- A common error is to omit the body keyword after package. We can
-- often diagnose this early on (before getting loads of errors from
- -- contained subprogram bodies), by knowing that that the file we
+ -- contained subprogram bodies), by knowing that the file we
-- are compiling has a name that requires a body to be found.
Save_Scan_State (Scan_State);
Get_Expected_Unit_Type
(File_Name (Current_Source_File)) = Expect_Body
then
- Error_Msg_BC ("keyword BODY expected here [see file name]");
+ Error_Msg_BC -- CODEFIX
+ ("keyword BODY expected here [see file name]");
Restore_Scan_State (Scan_State);
- Set_Unit (Comp_Unit_Node, P_Package (Pf_Pbod));
+ Set_Unit (Comp_Unit_Node, P_Package (Pf_Pbod_Pexp));
else
Restore_Scan_State (Scan_State);
- Set_Unit (Comp_Unit_Node, P_Package (Pf_Decl_Gins_Pbod_Rnam));
+ Set_Unit (Comp_Unit_Node, P_Package (Pf_Decl_Gins_Pbod_Rnam_Pexp));
end if;
elsif Token = Tok_Generic then
or else Token = Tok_Overriding
or else Token = Tok_Procedure
then
- Set_Unit (Comp_Unit_Node, P_Subprogram (Pf_Decl_Gins_Pbod_Rnam));
+ Set_Unit (Comp_Unit_Node, P_Subprogram (Pf_Decl_Gins_Pbod_Rnam_Pexp));
-- A little bit of an error recovery check here. If we just scanned
-- a subprogram declaration (as indicated by an SIS entry being
-- Otherwise we saved the semicolon position, so complain
else
- Error_Msg (""";"" should be IS", SIS_Semicolon_Sloc);
+ Error_Msg -- CODEFIX
+ (""";"" should be IS", SIS_Semicolon_Sloc);
end if;
Body_Node := Unit (Comp_Unit_Node);
elsif Private_Sloc /= No_Location
and then
- Nkind (Unit (Comp_Unit_Node)) /= N_Function_Instantiation
- and then
- Nkind (Unit (Comp_Unit_Node)) /= N_Procedure_Instantiation
+ Nkind (Unit (Comp_Unit_Node)) not in N_Subprogram_Instantiation
and then
Nkind (Unit (Comp_Unit_Node)) /= N_Subprogram_Renaming_Declaration
then
-- Another error from which it is hard to recover
- if Nkind (Unit_Node) = N_Subprogram_Body_Stub
- or else Nkind (Unit_Node) = N_Package_Body_Stub
- then
+ if Nkind_In (Unit_Node, N_Subprogram_Body_Stub, N_Package_Body_Stub) then
Cunit_Error_Flag := True;
return Error;
end if;
Unit_Node := Specification (Unit_Node);
end if;
- if Nkind (Unit_Node) = N_Package_Declaration
- or else Nkind (Unit_Node) = N_Subprogram_Declaration
- or else Nkind (Unit_Node) = N_Subprogram_Body
- or else Nkind (Unit_Node) = N_Subprogram_Renaming_Declaration
+ if Nkind_In (Unit_Node, N_Package_Declaration,
+ N_Subprogram_Declaration,
+ N_Subprogram_Body,
+ N_Subprogram_Renaming_Declaration)
then
Unit_Node := Specification (Unit_Node);
end if;
end if;
- if Nkind (Unit_Node) = N_Task_Body
- or else Nkind (Unit_Node) = N_Protected_Body
- or else Nkind (Unit_Node) = N_Task_Type_Declaration
- or else Nkind (Unit_Node) = N_Protected_Type_Declaration
- or else Nkind (Unit_Node) = N_Single_Task_Declaration
- or else Nkind (Unit_Node) = N_Single_Protected_Declaration
+ if Nkind_In (Unit_Node, N_Task_Body,
+ N_Protected_Body,
+ N_Task_Type_Declaration,
+ N_Protected_Type_Declaration,
+ N_Single_Task_Declaration,
+ N_Single_Protected_Declaration)
then
Name_Node := Defining_Identifier (Unit_Node);
- else
+
+ elsif Nkind_In (Unit_Node, N_Function_Instantiation,
+ N_Function_Specification,
+ N_Generic_Function_Renaming_Declaration,
+ N_Generic_Package_Renaming_Declaration,
+ N_Generic_Procedure_Renaming_Declaration)
+ or else
+ Nkind_In (Unit_Node, N_Package_Body,
+ N_Package_Instantiation,
+ N_Package_Renaming_Declaration,
+ N_Package_Specification,
+ N_Procedure_Instantiation,
+ N_Procedure_Specification)
+ then
Name_Node := Defining_Unit_Name (Unit_Node);
+
+ elsif Nkind (Unit_Node) = N_Expression_Function then
+ Error_Msg_SP
+ ("expression function cannot be used as compilation unit");
+ return Comp_Unit_Node;
+
+ -- Anything else is a serious error, abandon scan
+
+ else
+ raise Error_Resync;
end if;
Set_Sloc (Comp_Unit_Node, Sloc (Name_Node));
while Token = Tok_Pragma loop
Save_Scan_State (Scan_State);
- -- If we are in syntax scan mode allowing multiple units, then
- -- start the next unit if we encounter a configuration pragma,
- -- or a source reference pragma. We take care not to actually
- -- scan the pragma in this case since we don't want it to take
- -- effect for the current unit.
+ -- If we are in syntax scan mode allowing multiple units, then start
+ -- the next unit if we encounter a configuration pragma, or a source
+ -- reference pragma. We take care not to actually scan the pragma in
+ -- this case (we don't want it to take effect for the current unit).
if Operating_Mode = Check_Syntax then
Scan; -- past Pragma
if Token = Tok_Identifier
and then
- (Token_Name in
- First_Pragma_Name .. Last_Configuration_Pragma_Name
+ (Is_Configuration_Pragma_Name (Token_Name)
or else Token_Name = Name_Source_Reference)
then
Restore_Scan_State (Scan_State); -- to Pragma
-- Check we did not with any child units
Item := First (Context_Items (Comp_Unit_Node));
-
while Present (Item) loop
if Nkind (Item) = N_With_Clause
and then Nkind (Name (Item)) /= N_Identifier
if Token /= Tok_EOF then
-- If we already had to scan for a compilation unit, then don't
- -- give any further error message, since it just sems to make
+ -- give any further error message, since it just seems to make
-- things worse, and we already gave a serious error message.
if Cunit_Error_Flag then
-- Loop through context items
loop
- if Style_Check then Style.Check_Indentation; end if;
+ if Style_Check then
+ Style.Check_Indentation;
+ end if;
-- Gather any pragmas appearing in the context clause
end if;
if Token /= Tok_With then
- Error_Msg_SC ("unexpected LIMITED ignored");
+ Error_Msg_SC -- CODEFIX
+ ("unexpected LIMITED ignored");
end if;
- if Ada_Version < Ada_05 then
+ if Ada_Version < Ada_2005 then
Error_Msg_SP ("LIMITED WITH is an Ada 2005 extension");
Error_Msg_SP
("\unit must be compiled with -gnat05 switch");
Restore_Scan_State (Scan_State); -- to PRIVATE
return Item_List;
- elsif Ada_Version < Ada_05 then
- Error_Msg_SP ("PRIVATE WITH is an Ada 2005 extension");
+ elsif Ada_Version < Ada_2005 then
+ Error_Msg_SP ("`PRIVATE WITH` is an Ada 2005 extension");
Error_Msg_SP
("\unit must be compiled with -gnat05 switch");
end if;
if Token = Tok_Type then
- -- WITH TYPE is an GNAT specific extension
+ -- WITH TYPE is an obsolete GNAT specific extension
- if not Extensions_Allowed then
- Error_Msg_SP ("`WITH TYPE` is a 'G'N'A'T extension");
- Error_Msg_SP ("\unit must be compiled with -gnatX switch");
- end if;
+ Error_Msg_SP ("`WITH TYPE` is an obsolete 'G'N'A'T extension");
+ Error_Msg_SP ("\use Ada 2005 `LIMITED WITH` clause instead");
Scan; -- past TYPE
- With_Node := New_Node (N_With_Type_Clause, Token_Ptr);
- Append (With_Node, Item_List);
- Set_Name (With_Node, P_Qualified_Simple_Name);
T_Is;
if Token = Tok_Tagged then
- Set_Tagged_Present (With_Node);
Scan;
elsif Token = Tok_Access then
First_Flag := True;
-- Loop through names in one with clause, generating a separate
- -- N_With_Clause node for each nam encountered.
+ -- N_With_Clause node for each name encountered.
loop
With_Node := New_Node (N_With_Clause, Token_Ptr);
-- place where such an "error" should be caught.
Set_Name (With_Node, P_Qualified_Simple_Name);
+ if Name (With_Node) = Error then
+ Remove (With_Node);
+ end if;
+
Set_First_Name (With_Node, First_Flag);
Set_Limited_Present (With_Node, Has_Limited);
Set_Private_Present (With_Node, Has_Private);
Body_Node := Error; -- in case no good body found
Scan; -- past SEPARATE;
- T_Left_Paren;
+ U_Left_Paren;
Set_Name (Subunit_Node, P_Qualified_Simple_Name);
- T_Right_Paren;
+ U_Right_Paren;
- if Token = Tok_Semicolon then
- Error_Msg_SC ("unexpected semicolon ignored");
- Scan;
- end if;
+ Ignore (Tok_Semicolon);
- if Token = Tok_Function or else Token = Tok_Procedure then
- Body_Node := P_Subprogram (Pf_Pbod);
+ if Token = Tok_Function
+ or else Token = Tok_Not
+ or else Token = Tok_Overriding
+ or else Token = Tok_Procedure
+ then
+ Body_Node := P_Subprogram (Pf_Pbod_Pexp);
elsif Token = Tok_Package then
- Body_Node := P_Package (Pf_Pbod);
+ Body_Node := P_Package (Pf_Pbod_Pexp);
elsif Token = Tok_Protected then
Scan; -- past PROTECTED
Set_Proper_Body (Subunit_Node, Body_Node);
return Subunit_Node;
-
end P_Subunit;
------------------
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