Geek Gadgets 1

home *** CD-ROM | disk | FTP | other *** search

/ Geek Gadgets 1 / ADE-1.bin / ade-dist / gnat-2.06-src.tgz / tar.out / fsf / gnat / ada / errout.adb < prev next >

Wrap

Text File | 1996-09-28 | 64KB | 2,030 lines

------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- E R R O U T -- -- -- -- B o d y -- -- -- -- $Revision: 1.117 $ -- -- -- -- Copyright (c) 1992,1993,1994,1995 NYU, All Rights Reserved -- -- -- -- 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, 675 Mass Ave, Cambridge, MA 02139, USA. -- -- -- ------------------------------------------------------------------------------ with Atree; use Atree; with Casing; use Casing; with Csets; use Csets; with Debug; use Debug; with Einfo; use Einfo; with Expander; use Expander; with Lib; use Lib; with Namet; use Namet; with Opt; use Opt; with Output; use Output; with Scans; use Scans; with Sem_Util; use Sem_Util; with Sinput; use Sinput; with Sinfo; use Sinfo; with Snames; use Snames; with Stand; use Stand; with Uintp; use Uintp; with Uname; use Uname; with System.Parameters; package body Errout is Max_Msg_Length : constant := 80 + 2 * System.Parameters.Max_Line_Length; -- Maximum length of error message. The addition of Max_Line_Length -- ensures that two insertion tokens of maximum length can be accomodated. Msg_Buffer : String (1 .. Max_Msg_Length); -- Buffer used to prepare error messages Msg_Len : Integer; -- Number of characters currently stored in the message buffer Flag_Source : Source_File_Index; -- Source file index for source file where error is being posted Is_Warning_Msg : Boolean; -- Set by Set_Msg_Text to indicate if current message is warning message Is_Unconditional_Msg : Boolean; -- Set by Set_Msg_Text to indicate if current message is unconditional Cur_Msg : Error_Msg_Id; -- Id of most recently posted error message Current_Error_Source_File : Source_File_Index; -- Id of current messages. Used to post file name when unit changes. This -- is initialized to Main_Source at the start of a compilation, which means -- that no file names will be output unless there are errors in units -- other than the main unit. Manual_Quote_Mode : Boolean; -- Set True in manual quotation mode List_Pragmas_Index : Int; -- Index into List_Pragmas table List_Pragmas_Mode : Boolean; -- Starts True, gets set False by pragma List (Off), True by List (On) Suppress_Message : Boolean; -- A flag used to suppress certain obviously redundant messages (i.e. -- those referring to a node whose type is Any_Type). This suppression -- is effective only if All_Errors_Mode is off. Kill_Message : Boolean; -- A flag used to kill weird messages (e.g. those containing uninterpreted -- implicit type references) if we have already seen at least one message -- already. The idea is that we hope the weird message is a junk cascaded -- message that should be suppressed. Error_Msg_Loc_Output : Source_Ptr; -- This is set by Error_Msg_Internal to indicate if a # insertion was -- processed. If so, it is set to the output location, if not it is set -- to No_Location. This is used in Error_Msg to handle the case where -- the reference is to an instantiation. ----------------------------------- -- Error Message Data Structures -- ----------------------------------- -- The error messages are stored as a linked list of error message objects -- sorted into ascending order by the source location (Sloc). Each object -- records the text of the message and its source location. -- The following record type and table are used to represent error -- messages, with one entry in the table being allocated for each message. type Error_Msg_Object is record Text : Name_Id; -- Text of error message Next : Error_Msg_Id; -- Pointer to next message Sfile : Source_File_Index; -- Source table index of source file Sptr : Source_Ptr; -- Flag pointer Line : Logical_Line_Number; -- Line number Col : Column_Number; -- Column number Warn : Boolean; -- True if warning message Uncond : Boolean; -- True if unconditional message end record; package Errors is new Table ( Table_Component_Type => Error_Msg_Object, Table_Index_Type => Error_Msg_Id, Table_Low_Bound => 1, Table_Initial => 200, Table_Increment => 200, Table_Name => "Error"); Error_Msgs : Error_Msg_Id; -- The list of error messages ----------------------- -- Local Subprograms -- ----------------------- procedure Debug_Output (N : Node_Id); -- Called from Error_Msg_N and Error_Msg_NE to generate line of debug -- output giving node number (of node N) if the debug X switch is set. procedure Error_Msg_Internal (Msg : String; Flag_Location : Source_Ptr); -- This is like Error_Msg, except that Flag_Location is known not to be -- within a generic instance. The outer level routine, Error_Msg takes -- care of dealing with the generic instance cases. Error_Msg_Internal -- also leaves Error_Msg_Loc_Output set to indicate if a # insertion -- was processed. If so, it is set to the location output, if not it -- is set to No_Location. function OK_Node (N : Node_Id) return Boolean; -- Determines if a node is an OK node to place an error message on (return -- True) or if the error message should be suppressed (return False). A -- message is suppressed if the node already has an error posted on it, -- or if it refers to an Etype that has an error posted on it, or if -- it references an Entity that has an error posted on it. procedure Output_Error_Msgs (E : in out Error_Msg_Id); -- Output source line, error flag, and text of stored error message and -- all subsequent messages for the same line and unit. On return E is -- set to be one higher than the last message output. procedure Output_Line_Number (L : Logical_Line_Number); -- Output a line number as six digits (with leading zeroes suppressed), -- followed by a period and a blank (note that this is 8 characters which -- means that tabs in the source line will not get messed up). procedure Output_Msg_Text (E : Error_Msg_Id); -- Outputs characters of text in the text of the error message E, excluding -- any final exclamation point. Note that no end of line is output, the -- caller is responsible for adding the end of line. procedure Output_Source_Line (L : Logical_Line_Number; Sfile : Source_File_Index; Errs : Boolean); -- Outputs text of source line L, in file S, together with preceding line -- number, as described above for Output_Line_Number. The Errs parameter -- indicates if there are errors attached to the line, which forces -- listing on, even in the presence of pragma List (Off). procedure Set_Msg_Blank; -- Sets a single blank in the message if the preceding character is a -- non-blank character other than a left parenthesis. procedure Set_Msg_Blank_Conditional; -- Sets a single blank in the message if the preceding character is a -- non-blank character other than a left parenthesis or quote. procedure Set_Msg_Char (C : Character); -- Add a single character to the current message. This routine does not -- check for special insertion characters (they are just treated as text -- characters if they occur). procedure Set_Msg_Insertion_Column; -- Handle column number insertion (@ insertion character) procedure Set_Msg_Insertion_Name; -- Handle name insertion (% insertion character) procedure Set_Msg_Insertion_Line_Number (Loc, Flag : Source_Ptr); -- Handle line number insertion (# insertion character). Loc is the -- location to be referenced, and Flag is the location at which the -- flag is posted (used to determine whether to add "in file xxx") procedure Set_Msg_Insertion_Node; -- Handle node (name from node) insertion (& insertion character) procedure Set_Msg_Insertion_Reserved_Name; -- Handle insertion of reserved word name (* insertion character). procedure Set_Msg_Insertion_Reserved_Word (Text : String; J : in out Integer); -- Handle reserved word insertion (upper case letters). The Text argument -- is the current error message input text, and J is an index which on -- entry points to the first character of the reserved word, and on exit -- points past the last character of the reserved word. procedure Set_Msg_Insertion_Type_Reference (Flag : Source_Ptr); -- Handle type reference (right brace insertion character). Flag is the -- location of the flag, which is provided for the internal call to -- Set_Msg_Insertion_Line_Number, procedure Set_Msg_Insertion_Uint; -- Handle Uint insertion (^ insertion character) procedure Set_Msg_Insertion_Unit_Name; -- Handle unit name insertion ($ insertion character) procedure Set_Msg_Insertion_File_Name; -- Handle file name insertion (left brace insertion character) procedure Set_Msg_Int (Line : Int); -- Set the decimal representation of the argument in the error message -- buffer with no leading zeroes output. procedure Set_Msg_Name_Buffer; -- Output name from Name_Buffer, with surrounding quotes unless manual -- quotation mode is in effect. procedure Set_Msg_Node (Node : Node_Id); -- Add the sequence of characters for the name associated with the -- given node to the current message. procedure Set_Msg_Quote; -- Set quote if in normal quote mode, nothing if in manual quote mode procedure Set_Msg_Str (Text : String); -- Add a sequence of characters to the current message. This routine does -- not check for special insertion characters (they are just treated as -- text characters if they occur). procedure Set_Msg_Text (Text : String; Flag : Source_Ptr); -- Add a sequence of characters to the current message. The characters may -- be one of the special insertion characters (see documentation in spec). -- Flag is the location at which the error is to be posted, which is used -- to determine whether or not the # insertion needs a file name. The -- variables Msg_Buffer, Msg_Len, Is_Warning_Msg, and Is_Unconditional_Msg -- are set on return. ----------------------- -- Change_Error_Text -- ----------------------- procedure Change_Error_Text (Error_Id : Error_Msg_Id; New_Msg : String) is Save_Next : Error_Msg_Id; Err_Id : Error_Msg_Id := Error_Id; begin Set_Msg_Text (New_Msg, Errors.Table (Error_Id).Sptr); Name_Len := Msg_Len; Name_Buffer (1 .. Name_Len) := Msg_Buffer (1 .. Msg_Len); Errors.Table (Error_Id).Text := Name_Find; -- If in immediate error message mode, output modified error message now -- This is just a bit tricky, because we want to output just a single -- message, and the messages we modified is already linked in. We solve -- this by temporarily resetting its forward pointer to empty. if Immediate_Errors then Save_Next := Errors.Table (Error_Id).Next; Errors.Table (Error_Id).Next := No_Error_Msg; Write_Eol; Output_Source_Line (Errors.Table (Error_Id).Line, Errors.Table (Error_Id).Sfile, True); Output_Error_Msgs (Err_Id); Errors.Table (Error_Id).Next := Save_Next; end if; end Change_Error_Text; ------------------ -- Debug_Output -- ------------------ procedure Debug_Output (N : Node_Id) is begin if Debug_Flag_1 then Write_Str ("*** following error message posted on node id = #"); Write_Int (Int (N)); Write_Str (" ***"); Write_Eol; end if; end Debug_Output; --------------- -- Error_Msg -- --------------- -- Error_Msg is the same as Error_Msg_Internal for the cases where no -- generic instantiations occur. There are two special cases in which -- instantiations are relevant to error messages. -- First, if an error is posted within an instance, then this is a -- generic contract violation, and we want the error message to point -- to the original instantiation. -- Second, if the error message contains a reference to an instantiation, -- then we want to point to the instantiation as well as the location in -- the template being referenced. procedure Error_Msg (Msg : String; Flag_Location : Source_Ptr) is X : Source_File_Index; Actual_Error_Loc : Source_Ptr; -- Location of outer level instantiation in instantiation case, or -- just a copy of Flag_Location in the normal case. This is the -- location where all error messages will actually be posted. Save_Error_Msg_Sloc : Source_Ptr; -- Save Error_Msg_Sloc in instantiation case begin -- It is a fatal error to issue an error message when scanning from -- the internal source buffer (see Sinput for further documentation) pragma Assert (Source /= Internal_Source_Ptr); -- Otherwise continue with error message processing X := Get_Source_File_Index (Flag_Location); -- If not an instance then just output the message at current location if Instantiation (X) = No_Location then Actual_Error_Loc := Flag_Location; -- If we are trying to flag an error in an instantiation, we have -- a generic contract violation. What we want to generate in this -- case is: -- instantiation requirements not met, detected at ... -- original error message -- All these messages are posted at the location of the top level -- instantiation. If there are nested instantiations, then the -- initial error message can be repeated. We first save the value -- of Error_Msg_Sloc, in case it is used in the original error text. else Save_Error_Msg_Sloc := Error_Msg_Sloc; -- Now use a recursive procedure to output the instantiation messages -- The instantiation pointers point from the inside outwards, so the -- first message to be output (for the outer instantiation) is for -- the deepest one when we are following Instantiation links. declare procedure Output_Inst_Error_Msg (Loc : Source_Ptr); -- Output instantiation message, where Loc is the location of -- the instantiation. procedure Output_Inst_Error_Msg (Loc : Source_Ptr) is Xinst : Source_File_Index; begin Xinst := Get_Source_File_Index (Loc); if Instantiation (Xinst) /= No_Location then Output_Inst_Error_Msg (Instantiation (Xinst)); else Actual_Error_Loc := Loc; end if; Error_Msg_Sloc := Loc; Error_Msg_Internal ("instantiation requirements not met, detected at #", Actual_Error_Loc); end Output_Inst_Error_Msg; begin Output_Inst_Error_Msg (Instantiation (X)); end; Error_Msg_Sloc := Save_Error_Msg_Sloc; end if; Error_Msg_Internal (Msg, Actual_Error_Loc); -- Now we have output the message, together with instantiation -- references if the message was placed within the instantiation. -- Now we must deal with the case where the message contained a -- reference to an instantiation. In this case we will append -- messages of the form: -- instantiated at # -- showing the instantiation locations. In the case of nested -- instantiations, more than one such message will be output. if Error_Msg_Loc_Output /= No_Location then declare Xind : Source_File_Index; begin Error_Msg_Sloc := Error_Msg_Loc_Output; loop Xind := Get_Source_File_Index (Error_Msg_Sloc); Error_Msg_Sloc := Instantiation (Xind); exit when Error_Msg_Sloc = No_Location; Error_Msg_Internal ("instantiated at #", Actual_Error_Loc); end loop; end; end if; end Error_Msg; ------------------------ -- Error_Msg_Internal -- ------------------------ procedure Error_Msg_Internal (Msg : String; Flag_Location : Source_Ptr) is Next_Msg : Error_Msg_Id; -- Pointer to next message at insertion point Prev_Msg : Error_Msg_Id; -- Pointer to previous message at insertion point Temp_Msg : Error_Msg_Id; begin Suppress_Message := False; Kill_Message := False; Error_Msg_Loc_Output := No_Location; Set_Msg_Text (Msg, Flag_Location); -- Return without doing anything if message is suppressed if Suppress_Message and not All_Errors_Mode and not (Msg (Msg'Last) = '!') then return; end if; -- Return without doing anything if message is killed and this -- is not the first error message. The philosophy is that if we -- get a weird error message and we already have had a message, -- then we hope the weird message is a junk cascaded message if Kill_Message and then not All_Errors_Mode and then Errors_Detected /= 0 then return; end if; -- Immediate return if warning message and warnings are suppressed if Is_Warning_Msg and then Warning_Mode = Suppress then Cur_Msg := No_Error_Msg; return; end if; -- Otherwise build error message object for new message Name_Buffer (1 .. Msg_Len) := Msg_Buffer (1 .. Msg_Len); Name_Len := Msg_Len; Errors.Increment_Last; Cur_Msg := Errors.Last; Errors.Table (Cur_Msg).Text := Name_Find; Errors.Table (Cur_Msg).Next := No_Error_Msg; Errors.Table (Cur_Msg).Sptr := Flag_Location; Errors.Table (Cur_Msg).Sfile := Get_Source_File_Index (Flag_Location); Errors.Table (Cur_Msg).Line := Get_Line_Number (Flag_Location); Errors.Table (Cur_Msg).Col := Get_Column_Number (Flag_Location); Errors.Table (Cur_Msg).Warn := Is_Warning_Msg; Errors.Table (Cur_Msg).Uncond := Is_Unconditional_Msg; -- If immediate errors mode set, output error message now. Also output -- now if the -d1 debug flag is set (so node number message comes out -- just before actual error message) if Immediate_Errors or else Debug_Flag_1 then Write_Eol; Output_Source_Line (Errors.Table (Cur_Msg).Line, Errors.Table (Cur_Msg).Sfile, True); Temp_Msg := Cur_Msg; Output_Error_Msgs (Temp_Msg); -- If not in immediate errors mode, then we insert the message in the -- error chain for later output by Finalize_Error_Output. The messages -- are sorted first by unit (main unit comes first), and within a unit -- by source location (earlier flag location first in the chain). else Prev_Msg := No_Error_Msg; Next_Msg := Error_Msgs; while Next_Msg /= No_Error_Msg loop exit when Errors.Table (Cur_Msg).Sfile < Errors.Table (Next_Msg).Sfile; if Errors.Table (Cur_Msg).Sfile = Errors.Table (Next_Msg).Sfile then exit when Flag_Location < Errors.Table (Next_Msg).Sptr; end if; Prev_Msg := Next_Msg; Next_Msg := Errors.Table (Next_Msg).Next; end loop; -- The possible insertion point for the new message is after Prev_Msg -- and before Next_Msg. However, there are some cases in which we do -- not insert the message on the grounds that it is redundant with -- respect to the previous message. We only consider deleting the -- message if it is for the same line and unit as the previous one. if Prev_Msg /= No_Error_Msg and then Errors.Table (Prev_Msg).Line = Errors.Table (Cur_Msg).Line and then Errors.Table (Prev_Msg).Sfile = Errors.Table (Cur_Msg).Sfile then -- Delete a complete duplicate message (i.e. same error text -- at same position). Such duplicate messages are typically -- lexical messages from tokens that are rescanned. Note that -- such complete duplicates are deleted even if All_Errors -- mode is set on, since they can't possibly give any useful -- information under any circumstances. if Errors.Table (Prev_Msg).Col = Errors.Table (Cur_Msg).Col and then Errors.Table (Prev_Msg).Text = Errors.Table (Cur_Msg).Text then return; end if; -- Remaining case is where we are parsing and we are not in -- all errors mode (in semantics, don't delete any messages) if not All_Errors_Mode and then Compiler_State = Parsing then -- Don't delete unconditional messages if not Errors.Table (Cur_Msg).Uncond then -- Don't delete if prev msg is warning and new msg is -- an error. This is because we don't want a real error -- masked by a warning. In all other cases (that is parse -- errors for the same line that are not unconditional) -- we do delete the message. This helps to avoid -- junk extra messages from cascaded parsing errors if not Errors.Table (Prev_Msg).Warn or else Errors.Table (Cur_Msg).Warn then -- All tests passed, delete the message by simply -- returning without any further processing. return; end if; end if; end if; end if; -- Come here if message is to be inserted in the error chain if Prev_Msg = No_Error_Msg then Error_Msgs := Cur_Msg; else Errors.Table (Prev_Msg).Next := Cur_Msg; end if; Errors.Table (Cur_Msg).Next := Next_Msg; end if; -- Bump appropriate statistics count if Errors.Table (Cur_Msg).Warn and then Warning_Mode /= Treat_As_Error then Warnings_Detected := Warnings_Detected + 1; else if Error_Monitoring_On then Monitored_Errors := Monitored_Errors + 1; Warnings_Detected := Warnings_Detected + 1; Errors.Table (Cur_Msg).Warn := True; if Monitored_Message /= No_Name then if Monitored_Message = Errors.Table (Cur_Msg).Text then Monitored_Message := No_Name; else Monitored_Message := Error_Name; end if; end if; else Errors_Detected := Errors_Detected + 1; end if; -- Turn off code generation if not done already if Operating_Mode = Generate_Code then Operating_Mode := Check_Semantics; Expander_Active := False; end if; -- Set the fatal error flag in the unit table unless we are -- in Try_Semantics mode. This stops the semantics from if not Try_Semantics then Set_Fatal_Error (Get_Sloc_Unit_Number (Flag_Location)); end if; end if; -- Terminate if max errors reached if Errors_Detected = Maximum_Errors then raise Unrecoverable_Error; end if; end Error_Msg_Internal; ----------------- -- Error_Msg_S -- ----------------- procedure Error_Msg_S (Msg : String) is begin Error_Msg (Msg, Scan_Ptr); end Error_Msg_S; ------------------ -- Error_Msg_AP -- ------------------ procedure Error_Msg_AP (Msg : String) is S1 : Source_Ptr; C : Character; begin -- If we had saved the Scan_Ptr value after scanning the previous -- token, then we would have exactly the right place for putting -- the flag immediately at hand. However, that would add at least -- two instructions to a Scan call *just* to service the possibility -- of an Error_Msg_AP call. So instead we reconstruct that value. -- We have two possibilities, start with Prev_Token_Ptr and skip over -- the current token, which is made harder by the possibility that this -- token may be in error, or start with Token_Ptr and work backwards. -- We used to take the second approach, but it's hard because of -- comments, and harder still because things that look like comments -- can appear inside strings. So now we take the first approach. -- Note: in the case where there is no previous token, Prev_Token_Ptr -- is set to Source_First, which is a reasonable position for the -- error flag in this situation. S1 := Prev_Token_Ptr; C := Source (S1); -- If the previous token is a string literal, we need a special approach -- since there may be white space inside the literal and we don't want -- to stop on that white space. if Prev_Token = Tok_String_Literal then loop S1 := S1 + 1; if Source (S1) = C then S1 := S1 + 1; exit when Source (S1) /= C; elsif Source (S1) in Line_Terminator then exit; end if; end loop; -- Character literal also needs special handling elsif Prev_Token = Tok_Char_Literal then S1 := S1 + 3; -- Otherwise we search forward for the end of the current token, marked -- by a line terminator, white space, a comment symbol or if we bump -- into the following token (i.e. the current token) else while Source (S1) not in Line_Terminator and then Source (S1) /= ' ' and then Source (S1) /= Ascii.HT and then (Source (S1) /= '-' or else Source (S1 + 1) /= '-') and then S1 /= Token_Ptr loop S1 := S1 + 1; end loop; end if; -- S1 is now set to the location for the flag Error_Msg (Msg, S1); end Error_Msg_AP; ------------------ -- Error_Msg_BC -- ------------------ procedure Error_Msg_BC (Msg : String) is begin -- If we are at end of file, post the flag after the previous token if Token = Tok_EOF then Error_Msg_AP (Msg); -- If we are at start of file, post the flag at the current token elsif Token_Ptr = Source_First (Current_Source_File) then Error_Msg_SC (Msg); -- If the character before the current token is a space or a horizontal -- tab, then we place the flag on this character (in the case of a tab -- we would really like to place it in the "last" character of the tab -- space, but that it too much trouble to worry about). elsif Source (Token_Ptr - 1) = ' ' or else Source (Token_Ptr - 1) = Ascii.HT then Error_Msg (Msg, Token_Ptr - 1); -- If there is no space or tab before the current token, then there is -- no room to place the flag before the token, so we place it on the -- token instead (this happens for example at the start of a line). else Error_Msg (Msg, Token_Ptr); end if; end Error_Msg_BC; ------------------ -- Error_Msg_SC -- ------------------ procedure Error_Msg_SC (Msg : String) is begin -- If we are at end of file, post the flag after the previous token if Token = Tok_EOF then Error_Msg_AP (Msg); -- For all other cases the message is posted at the current token -- pointer position else Error_Msg (Msg, Token_Ptr); end if; end Error_Msg_SC; ------------------ -- Error_Msg_SP -- ------------------ procedure Error_Msg_SP (Msg : String) is begin -- Note: in the case where there is no previous token, Prev_Token_Ptr -- is set to Source_First, which is a reasonable position for the -- error flag in this situation Error_Msg (Msg, Prev_Token_Ptr); end Error_Msg_SP; ----------------- -- Error_Msg_N -- ----------------- procedure Error_Msg_N (Msg : String; N : Node_Id) is begin if All_Errors_Mode or else Msg (Msg'Last) = '!' or else OK_Node (N) then Debug_Output (N); Error_Msg_Node_1 := N; Error_Msg (Msg, Sloc (N)); end if; if not Is_Warning_Msg then Set_Error_Posted (N, True); end if; end Error_Msg_N; ------------------ -- Error_Msg_NE -- ------------------ procedure Error_Msg_NE (Msg : String; N : Node_Id; E : Entity_Id) is begin if All_Errors_Mode or else Msg (Msg'Last) = '!' or else OK_Node (N) then Debug_Output (N); Error_Msg_Node_1 := E; Error_Msg (Msg, Sloc (N)); end if; if not Is_Warning_Msg then Set_Error_Posted (N, True); end if; end Error_Msg_NE; -------------- -- Finalize -- -------------- procedure Finalize is E : Error_Msg_Id; Err_Flag : Boolean; L : Logical_Line_Number; begin -- Brief Error mode if Brief_Output or (not Full_List and not Verbose_Mode) then E := Error_Msgs; Set_Standard_Error; while E /= No_Error_Msg loop Write_Name (Reference_Name (Errors.Table (E).Sfile)); Write_Char (':'); Write_Int (Int (Errors.Table (E).Line)); Write_Char (':'); if Errors.Table (E).Col < 10 then Write_Char ('0'); end if; Write_Int (Int (Errors.Table (E).Col)); Write_Str (": "); Output_Msg_Text (E); Write_Eol; E := Errors.Table (E).Next; end loop; Set_Standard_Output; end if; -- Full source listing case if Full_List then List_Pragmas_Index := 1; List_Pragmas_Mode := True; E := Error_Msgs; Write_Eol; -- First list initial main source file with its error messages for N in 1 .. Num_Source_Lines (Main_Source) loop L := Physical_To_Logical (N, Main_Source); Err_Flag := E /= No_Error_Msg and then Errors.Table (E).Line = L and then Errors.Table (E).Sfile = Main_Source; Output_Source_Line (L, Main_Source, Err_Flag); if Err_Flag then Output_Error_Msgs (E); if not Debug_Flag_2 then Write_Eol; end if; end if; end loop; -- Then output errors, if any, for subsidiary units while E /= No_Error_Msg and then Errors.Table (E).Sfile /= Main_Source loop Write_Eol; Output_Source_Line (Errors.Table (E).Line, Errors.Table (E).Sfile, True); Output_Error_Msgs (E); end loop; end if; -- Verbose mode (error lines only with error flags) if Verbose_Mode and not Full_List then E := Error_Msgs; -- Loop through error lines while E /= No_Error_Msg loop Write_Eol; Output_Source_Line (Errors.Table (E).Line, Errors.Table (E).Sfile, True); Output_Error_Msgs (E); end loop; end if; -- Output error summary if verbose or full list mode if Verbose_Mode or else Full_List then -- Extra blank line if error messages or source listing were output if Errors_Detected + Warnings_Detected > 0 or else Full_List then Write_Eol; end if; -- Message giving total number of lines Write_Str (" "); Write_Int (Num_Source_Lines (Main_Source)); if Num_Source_Lines (Main_Source) = 1 then Write_Str (" line: "); else Write_Str (" lines: "); end if; -- Message giving number of errors detected. This normally goes to -- Standard_Output. The exception is when brief mode is not set, -- verbose mode (or full list mode) is set, and there are errors. -- In this case we send the message to standard error to make sure -- that *something* appears on standard error in an error situation. if Errors_Detected + Warnings_Detected /= 0 and then not Brief_Output and then (Verbose_Mode or Full_List) then Set_Standard_Error; end if; if Errors_Detected = 0 then Write_Str ("No errors"); elsif Errors_Detected = 1 then Write_Str ("1 error"); else Write_Int (Errors_Detected); Write_Str (" errors"); end if; if Warnings_Detected = 1 then Write_Str (", 1 warning"); elsif Warnings_Detected > 1 then Write_Str (", "); Write_Int (Warnings_Detected); Write_Str (" warnings"); end if; Write_Eol; Set_Standard_Output; end if; if Maximum_Errors /= 0 and then Errors_Detected = Maximum_Errors then Set_Standard_Error; Write_Str ("fatal error: maximum errors reached"); Write_Eol; Set_Standard_Output; end if; end Finalize; ---------------- -- Get_Msg_Id -- ---------------- function Get_Msg_Id return Error_Msg_Id is begin return Cur_Msg; end Get_Msg_Id; ---------------- -- Initialize -- ---------------- procedure Initialize is begin Errors.Init; Error_Msgs := No_Error_Msg; Errors_Detected := 0; Warnings_Detected := 0; Error_Monitoring_On := False; Cur_Msg := No_Error_Msg; Current_Error_Source_File := Main_Source; List_Pragmas.Init; end Initialize; ------------- -- OK_Node -- ------------- function OK_Node (N : Node_Id) return Boolean is K : constant Node_Kind := Nkind (N); begin if Error_Posted (N) then return False; elsif K in N_Has_Etype and then Present (Etype (N)) and then Error_Posted (Etype (N)) then return False; elsif (K in N_Op or else K = N_Attribute_Reference or else K = N_Character_Literal or else K = N_Expanded_Name or else K = N_Identifier or else K = N_Operator_Symbol) and then Present (Entity (N)) and then Error_Posted (Entity (N)) then return False; else return True; end if; end OK_Node; ----------------------- -- Output_Error_Msgs -- ----------------------- procedure Output_Error_Msgs (E : in out Error_Msg_Id) is P : Source_Ptr; T : Error_Msg_Id; Flag_Num : Pos; Mult_Flags : Boolean := False; begin -- Figure out if we will place more than one error flag on this line T := E; while T /= No_Error_Msg and then Errors.Table (T).Line = Errors.Table (E).Line and then Errors.Table (T).Sfile = Errors.Table (E).Sfile loop if Errors.Table (T).Sptr > Errors.Table (E).Sptr then Mult_Flags := True; end if; T := Errors.Table (T).Next; end loop; -- Output the error flags. The circuit here makes sure that the tab -- characters in the original line are properly accounted for. The -- eight blanks at the start are to match the line number. if not Debug_Flag_2 then Write_Str (" "); P := Line_Start (Errors.Table (E).Sptr); Flag_Num := 1; -- Loop through error messages for this line to place flags T := E; while T /= No_Error_Msg and then Errors.Table (T).Line = Errors.Table (E).Line and then Errors.Table (T).Sfile = Errors.Table (E).Sfile loop -- Loop to output blanks till current flag position while P < Errors.Table (T).Sptr loop if Source_Text (Errors.Table (T).Sfile) (P) = Ascii.HT then Write_Char (Ascii.HT); else Write_Char (' '); end if; P := P + 1; end loop; -- Output flag (unless already output, this happens if more -- than one error message occurs at the same flag position). if P = Errors.Table (T).Sptr then if (Flag_Num = 1 and then not Mult_Flags) or else Flag_Num > 9 then Write_Char ('|'); else Write_Char (Character'Val (Character'Pos ('0') + Flag_Num)); end if; P := P + 1; end if; T := Errors.Table (T).Next; Flag_Num := Flag_Num + 1; end loop; Write_Eol; end if; -- Now output the error messages T := E; while T /= No_Error_Msg and then Errors.Table (T).Line = Errors.Table (E).Line and then Errors.Table (T).Sfile = Errors.Table (E).Sfile loop Write_Str (" >>> "); Output_Msg_Text (T); if Debug_Flag_2 then while Column < 74 loop Write_Char (' '); end loop; Write_Str (" <<<"); end if; Write_Eol; T := Errors.Table (T).Next; end loop; E := T; end Output_Error_Msgs; ------------------------ -- Output_Line_Number -- ------------------------ procedure Output_Line_Number (L : Logical_Line_Number) is D : Int; -- next digit C : Character; -- next character Z : Boolean; -- flag for zero suppress N, M : Int; -- temporaries begin Z := False; N := Int (L); M := 100_000; while M /= 0 loop D := Int (N / M); N := N rem M; M := M / 10; if D = 0 then if Z then C := '0'; else C := ' '; end if; else Z := True; C := Character'Val (D + 48); end if; Write_Char (C); end loop; Write_Str (". "); end Output_Line_Number; --------------------- -- Output_Msg_Text -- --------------------- procedure Output_Msg_Text (E : Error_Msg_Id) is begin if Errors.Table (E).Warn then Write_Str ("warning: "); elsif System.Parameters.Tag_Errors then Write_Str ("error: "); end if; Write_Name (Errors.Table (E).Text); end Output_Msg_Text; ------------------------ -- Output_Source_Line -- ------------------------ procedure Output_Source_Line (L : Logical_Line_Number; Sfile : Source_File_Index; Errs : Boolean) is S : Source_Ptr; C : Character; Line_Number_Output : Boolean := False; -- Set True once line number is output begin if Sfile /= Current_Error_Source_File then Write_Str ("==============Error messages for source file: "); Write_Name (Reference_Name (Sfile)); Write_Eol; Current_Error_Source_File := Sfile; end if; if Errs or List_Pragmas_Mode then Output_Line_Number (L); Line_Number_Output := True; end if; S := Line_Start (L, Sfile); loop C := Source_Text (Sfile) (S); exit when C = Ascii.LF or else C = Ascii.CR or else C = EOF; -- Deal with matching entry in List_Pragmas table if Full_List and then List_Pragmas_Index <= List_Pragmas.Last and then S = List_Pragmas.Table (List_Pragmas_Index).Ploc then case List_Pragmas.Table (List_Pragmas_Index).Ptyp is when Page => Write_Char (C); -- Ignore if on line with errors so that error flags -- get properly listed with the error line . if not Errs then Write_Char (Ascii.FF); end if; when List_On => List_Pragmas_Mode := True; if not Line_Number_Output then Output_Line_Number (L); Line_Number_Output := True; end if; Write_Char (C); when List_Off => Write_Char (C); List_Pragmas_Mode := False; end case; List_Pragmas_Index := List_Pragmas_Index + 1; -- Normal case (no matching entry in List_Pragmas table) else if Errs or List_Pragmas_Mode then Write_Char (C); end if; end if; S := S + 1; end loop; if Line_Number_Output then Write_Eol; end if; end Output_Source_Line; ------------------- -- Set_Msg_Blank -- ------------------- procedure Set_Msg_Blank is begin if Msg_Len > 0 and then Msg_Buffer (Msg_Len) /= ' ' and then Msg_Buffer (Msg_Len) /= '(' then Set_Msg_Char (' '); end if; end Set_Msg_Blank; ------------------------------- -- Set_Msg_Blank_Conditional -- ------------------------------- procedure Set_Msg_Blank_Conditional is begin if Msg_Len > 0 and then Msg_Buffer (Msg_Len) /= ' ' and then Msg_Buffer (Msg_Len) /= '(' and then Msg_Buffer (Msg_Len) /= '"' then Set_Msg_Char (' '); end if; end Set_Msg_Blank_Conditional; ------------------ -- Set_Msg_Char -- ------------------ procedure Set_Msg_Char (C : Character) is begin -- The check for message buffer overflow is needed to deal with cases -- where insertions get too long (in particular a child unit name can -- be very long). if Msg_Len < Max_Msg_Length then Msg_Len := Msg_Len + 1; Msg_Buffer (Msg_Len) := C; end if; end Set_Msg_Char; ------------------------------ -- Set_Msg_Insertion_Column -- ------------------------------ procedure Set_Msg_Insertion_Column is begin if RM_Column_Check then Set_Msg_Str (" in column "); Set_Msg_Int (Int (Error_Msg_Col) + 1); end if; end Set_Msg_Insertion_Column; --------------------------------- -- Set_Msg_Insertion_File_Name -- --------------------------------- procedure Set_Msg_Insertion_File_Name is begin if Error_Msg_Name_1 = No_Name then null; elsif Error_Msg_Name_1 = Error_Name then Set_Msg_Blank; Set_Msg_Str ("<error>"); else Set_Msg_Blank; Get_Decoded_Name_String (Error_Msg_Name_1); Set_Msg_Quote; Set_Msg_Name_Buffer; Set_Msg_Quote; end if; -- The following assignments ensure that the second and third percent -- insertion characters will correspond to the Error_Msg_Name_2 and -- Error_Msg_Name_3 as required. Error_Msg_Name_1 := Error_Msg_Name_2; Error_Msg_Name_2 := Error_Msg_Name_3; end Set_Msg_Insertion_File_Name; ----------------------------------- -- Set_Msg_Insertion_Line_Number -- ----------------------------------- procedure Set_Msg_Insertion_Line_Number (Loc, Flag : Source_Ptr) is Sindex : Source_File_Index; begin Set_Msg_Blank; if Loc = No_Location then Set_Msg_Str ("at unknown location"); elsif Loc <= Standard_Location then Set_Msg_Str ("in package Standard"); if Loc = Standard_Ascii_Location then Set_Msg_Str (".Ascii"); end if; else Sindex := Get_Source_File_Index (Flag); -- Add "at file-name:" if reference is to other than the source -- file in which the error message is placed. if Loc not in Source_First (Sindex) .. Source_Last (Sindex) then Set_Msg_Str ("at "); Get_Decoded_Name_String (File_Name (Get_Source_File_Index (Loc))); Set_Msg_Name_Buffer; Set_Msg_Char (':'); -- If in current file, add text "at line " else Set_Msg_Str ("at line "); end if; -- Output line and column Set_Msg_Int (Int (Get_Line_Number (Loc))); Error_Msg_Loc_Output := No_Location; end if; end Set_Msg_Insertion_Line_Number; ---------------------------- -- Set_Msg_Insertion_Name -- ---------------------------- procedure Set_Msg_Insertion_Name is begin if Error_Msg_Name_1 = No_Name then null; elsif Error_Msg_Name_1 = Error_Name then Set_Msg_Blank; Set_Msg_Str ("<error>"); else Set_Msg_Blank_Conditional; Get_Decoded_Name_String (Error_Msg_Name_1); -- If operator name or character literal name, just print it as is -- Also print as is if it ends in a right paren (case of x'val(nnn)) if Name_Buffer (1) = '"' or else Name_Buffer (1) = ''' or else Name_Buffer (Name_Len) = ')' then Set_Msg_Name_Buffer; -- Else output with surrounding quotes in proper casing mode else Set_Casing (Identifier_Casing (Flag_Source), Mixed_Case); Set_Msg_Quote; Set_Msg_Name_Buffer; Set_Msg_Quote; end if; end if; -- The following assignments ensure that the second and third percent -- insertion characters will correspond to the Error_Msg_Name_2 and -- Error_Msg_Name_3 as required. Error_Msg_Name_1 := Error_Msg_Name_2; Error_Msg_Name_2 := Error_Msg_Name_3; end Set_Msg_Insertion_Name; ---------------------------- -- Set_Msg_Insertion_Node -- ---------------------------- procedure Set_Msg_Insertion_Node is begin Suppress_Message := Error_Msg_Node_1 = Error or else Error_Msg_Node_1 = Any_Type; if Error_Msg_Node_1 = Empty then Set_Msg_Blank_Conditional; Set_Msg_Str ("<empty>"); elsif Error_Msg_Node_1 = Error then Set_Msg_Blank; Set_Msg_Str ("<error>"); elsif Error_Msg_Node_1 = Standard_Void_Type then Set_Msg_Blank; Set_Msg_Str ("procedure name"); else Set_Msg_Blank_Conditional; -- Skip quotes for operator case if Nkind (Error_Msg_Node_1) in N_Op then Set_Msg_Node (Error_Msg_Node_1); else Set_Msg_Quote; Set_Msg_Node (Error_Msg_Node_1); Set_Msg_Quote; end if; end if; -- The following assignment ensures that a second ampersand insertion -- character will correspond to the Error_Msg_Node_2 parameter. Error_Msg_Node_1 := Error_Msg_Node_2; end Set_Msg_Insertion_Node; ------------------------------------- -- Set_Msg_Insertion_Reserved_Name -- ------------------------------------- procedure Set_Msg_Insertion_Reserved_Name is begin Set_Msg_Blank_Conditional; Get_Name_String (Error_Msg_Name_1); Set_Msg_Quote; Set_Casing (Keyword_Casing (Flag_Source), All_Lower_Case); Set_Msg_Name_Buffer; Set_Msg_Quote; end Set_Msg_Insertion_Reserved_Name; ------------------------------------- -- Set_Msg_Insertion_Reserved_Word -- ------------------------------------- procedure Set_Msg_Insertion_Reserved_Word (Text : String; J : in out Integer) is begin Set_Msg_Blank_Conditional; Name_Len := 0; while J <= Text'Last and then Text (J) in 'A' .. 'Z' loop Name_Len := Name_Len + 1; Name_Buffer (Name_Len) := Text (J); J := J + 1; end loop; Set_Casing (Keyword_Casing (Flag_Source), All_Lower_Case); Set_Msg_Quote; Set_Msg_Name_Buffer; Set_Msg_Quote; end Set_Msg_Insertion_Reserved_Word; -------------------------------------- -- Set_Msg_Insertion_Type_Reference -- -------------------------------------- procedure Set_Msg_Insertion_Type_Reference (Flag : Source_Ptr) is begin Set_Msg_Blank; if Error_Msg_Node_1 = Standard_Void_Type then Set_Msg_Str ("procedure name instead of function"); return; elsif Error_Msg_Node_1 = Standard_Exception_Type then Set_Msg_Str ("an exception"); return; elsif Error_Msg_Node_1 = Any_Access or else Error_Msg_Node_1 = Any_Boolean or else Error_Msg_Node_1 = Any_Character or else Error_Msg_Node_1 = Any_Composite or else Error_Msg_Node_1 = Any_Discrete or else Error_Msg_Node_1 = Any_Fixed or else Error_Msg_Node_1 = Any_Integer or else Error_Msg_Node_1 = Any_Numeric or else Error_Msg_Node_1 = Any_Real or else Error_Msg_Node_1 = Any_Scalar or else Error_Msg_Node_1 = Any_String then Get_Decoded_Name_String (Chars (Error_Msg_Node_1)); Set_Msg_Name_Buffer; return; elsif Error_Msg_Node_1 = Universal_Real then Set_Msg_Str ("type universal real"); return; elsif Error_Msg_Node_1 = Universal_Integer then Set_Msg_Str ("type universal integer"); return; elsif Error_Msg_Node_1 = Universal_Fixed then Set_Msg_Str ("type universal fixed"); return; end if; -- If we fall through, it is not a special case, so first output -- the name of the type, preceded by private for a private type if Is_Private_Type (Error_Msg_Node_1) then Set_Msg_Str ("private type "); else Set_Msg_Str ("type "); end if; if Sloc (Error_Msg_Node_1) <= Standard_Location then Set_Msg_Quote; Set_Msg_Str ("Standard."); Set_Msg_Node (Error_Msg_Node_1); Set_Msg_Quote; else Set_Msg_Quote; Set_Msg_Node (Error_Msg_Node_1); Set_Msg_Quote; Set_Msg_Str (" declared"); Set_Msg_Insertion_Line_Number (Sloc (Error_Msg_Node_1), Flag); end if; end Set_Msg_Insertion_Type_Reference; ---------------------------- -- Set_Msg_Insertion_Uint -- ---------------------------- procedure Set_Msg_Insertion_Uint is begin Set_Msg_Blank; UI_Image (Error_Msg_Uint_1); for J in 1 .. UI_Image_Length loop Set_Msg_Char (UI_Image_Buffer (J)); end loop; -- The following assignment ensures that a second carret insertion -- character will correspond to the Error_Msg_Uint_2 parameter. Error_Msg_Uint_1 := Error_Msg_Uint_2; end Set_Msg_Insertion_Uint; --------------------------------- -- Set_Msg_Insertion_Unit_Name -- --------------------------------- procedure Set_Msg_Insertion_Unit_Name is begin if Error_Msg_Unit_1 = No_Name then null; elsif Error_Msg_Unit_1 = Error_Name then Set_Msg_Blank; Set_Msg_Str ("<error>"); else Get_Unit_Name_String (Error_Msg_Unit_1); Set_Msg_Blank; Set_Msg_Quote; Set_Msg_Name_Buffer; Set_Msg_Quote; end if; -- The following assignment ensures that a second percent insertion -- character will correspond to the Error_Msg_Unit_2 parameter. Error_Msg_Unit_1 := Error_Msg_Unit_2; end Set_Msg_Insertion_Unit_Name; ----------------- -- Set_Msg_Int -- ----------------- procedure Set_Msg_Int (Line : Int) is begin if Line > 9 then Set_Msg_Int (Line / 10); end if; Set_Msg_Char (Character'Val (Character'Pos ('0') + (Line rem 10))); end Set_Msg_Int; ------------------------- -- Set_Msg_Name_Buffer -- ------------------------- procedure Set_Msg_Name_Buffer is begin for J in 1 .. Name_Len loop Set_Msg_Char (Name_Buffer (J)); end loop; end Set_Msg_Name_Buffer; ------------------ -- Set_Msg_Node -- ------------------ procedure Set_Msg_Node (Node : Node_Id) is Ent : Entity_Id; Old_Ent : Entity_Id; Mchar : Character; Derived : Boolean := False; Class_Flag : Boolean := False; Nam : Name_Id; procedure Kill_Type; -- If message buffer ends with " type ", then remove the last five -- characters. This is used to avoid a duplication of "type" in the -- text of the message with "type" generated by the special tests -- below (e.g. we don't want "expected type type derived from ..") procedure Kill_Type is begin if Msg_Len > 4 and then Msg_Buffer (Msg_Len - 4 .. Msg_Len) = "type " and then (Msg_Len = 5 or else Msg_Buffer (Msg_Len - 5) = ' ') then Msg_Len := Msg_Len - 5; end if; end Kill_Type; -- Start of processing for Set_Msg_Node begin if Nkind (Node) = N_Designator then Set_Msg_Node (Name (Node)); Set_Msg_Char ('.'); Set_Msg_Node (Identifier (Node)); return; elsif Nkind (Node) = N_Defining_Program_Unit_Name then Set_Msg_Node (Name (Node)); Set_Msg_Char ('.'); Set_Msg_Node (Defining_Identifier (Node)); return; elsif Nkind (Node) = N_Selected_Component then Set_Msg_Node (Prefix (Node)); Set_Msg_Char ('.'); Set_Msg_Node (Selector_Name (Node)); return; end if; -- The only remaining possibilities are identifiers, defining -- identifiers and pragmas, i.e. nodes that have a Chars field. -- Why is this true ??? -- Internal names generally represent something gone wrong. An exception -- is the case of internal type names, where we try to find a reasonable -- external representation for the external name if Is_Internal_Name (Chars (Node)) and then ((Is_Entity_Name (Node) and then Is_Type (Entity (Node))) or else (Nkind (Node) = N_Defining_Identifier and then Is_Type (Node))) then if Nkind (Node) = N_Identifier then Ent := Entity (Node); else Ent := Node; end if; -- Undo placement of a quote, since we will put it back later Mchar := Msg_Buffer (Msg_Len); if Mchar = '"' then Msg_Len := Msg_Len - 1; end if; -- The loop here deals with recursive types, we are trying to -- find a related entity that is not an implicit type. Note -- that the check with Old_Ent stops us from getting "stuck". -- Also, we don't output the "type derived from" message more -- than once in the case where we climb up multiple levels. loop Old_Ent := Ent; -- Implicit access type, use directly designated type if Is_Access_Type (Ent) then Set_Msg_Str ("access to "); Ent := Directly_Designated_Type (Ent); -- Classwide type elsif Is_Class_Wide_Type (Ent) then Class_Flag := True; Ent := Root_Type (Ent); -- Use base type if this is a subtype elsif Ent /= Base_Type (Ent) then Kill_Type; Set_Msg_Str ("subtype of "); Ent := Base_Type (Ent); -- If this is a base type with a first named subtype, use the -- first named subtype instead. This is not quite accurate in -- all cases, but it makes too much noise to be accurate and -- add 'Base in all cases. Note that we only do this is the -- first named subtype is not itself an internal name. This -- avoids the obvious loop (subtype->basetype->subtype) which -- would otherwise occur!) elsif Present (Freeze_Node (Ent)) and then Present (First_Subtype_Link (Freeze_Node (Ent))) and then not Is_Internal_Name (Chars (First_Subtype_Link (Freeze_Node (Ent)))) then Ent := First_Subtype_Link (Freeze_Node (Ent)); -- Otherwise use root type else if not Derived then Kill_Type; Set_Msg_Str ("type derived from "); Derived := True; end if; Ent := Etype (Ent); end if; -- If we are stuck in a loop, get out and settle for the -- internal name after all. exit when Ent = Old_Ent; -- Get out if we finally found a non-internal name to use exit when not Is_Internal_Name (Chars (Ent)); end loop; if Mchar = '"' then Set_Msg_Char ('"'); end if; Nam := Chars (Ent); -- For any other internal names, we settle for using the name else Nam := Chars (Node); end if; -- If we still have an internal name, then set to kill the message -- if it is not the first message (we really try hard not to show -- the dirty laundry of the implementation to the compiler user!) if Is_Internal_Name (Nam) then Kill_Message := True; end if; -- At this stage, the name to output is in Nam Get_Decoded_Name_String (Nam); -- Now we have to set the proper case. If we have a source location -- then do a check to see if the name in the source is the same name -- as the name in the Names table, except for possible differences -- in case, which is the case when we can copy from the source. declare Src_Loc : constant Source_Ptr := Sloc (Error_Msg_Node_1); Sbuffer : Source_Buffer_Ptr; Ref_Ptr : Integer; Src_Ptr : Source_Ptr; begin Ref_Ptr := 1; Src_Ptr := Src_Loc; -- Determine if the reference we are dealing with corresponds -- to text at the point of the error reference. This will often -- be the case for simple identifier references, and is the case -- where we can copy the spelling from the source. if Src_Loc /= No_Location and then Src_Loc > Standard_Location then Sbuffer := Source_Text (Get_Source_File_Index (Src_Loc)); while Ref_Ptr <= Name_Len loop exit when Fold_Lower (Sbuffer (Src_Ptr)) /= Fold_Lower (Name_Buffer (Ref_Ptr)); Ref_Ptr := Ref_Ptr + 1; Src_Ptr := Src_Ptr + 1; end loop; end if; -- If we get through the loop without a mismatch, then output -- the name the way it is spelled in the source program if Ref_Ptr > Name_Len then Src_Ptr := Src_Loc; for J in 1 .. Name_Len loop Name_Buffer (J) := Sbuffer (Src_Ptr); Src_Ptr := Src_Ptr + 1; end loop; -- Otherwise set the casing using the default identifier casing else Set_Casing (Identifier_Casing (Flag_Source), Mixed_Case); end if; end; Set_Msg_Name_Buffer; -- Add 'Class if class wide type if Class_Flag then Set_Msg_Char ('''); Get_Name_String (Name_Class); Set_Casing (Identifier_Casing (Flag_Source), Mixed_Case); Set_Msg_Name_Buffer; end if; end Set_Msg_Node; ------------------- -- Set_Msg_Quote -- ------------------- procedure Set_Msg_Quote is begin if not Manual_Quote_Mode then Set_Msg_Char ('"'); end if; end Set_Msg_Quote; ----------------- -- Set_Msg_Str -- ----------------- procedure Set_Msg_Str (Text : String) is begin for J in Text'Range loop Set_Msg_Char (Text (J)); end loop; end Set_Msg_Str; ------------------ -- Set_Msg_Text -- ------------------ procedure Set_Msg_Text (Text : String; Flag : Source_Ptr) is C : Character; -- Current character I : Natural; -- Current index; begin Manual_Quote_Mode := False; Is_Warning_Msg := False; Is_Unconditional_Msg := False; Msg_Len := 0; Flag_Source := Get_Source_File_Index (Flag); I := Text'First; while I <= Text'Last loop C := Text (I); I := I + 1; -- Check for insertion character if C = '%' then Set_Msg_Insertion_Name; elsif C = '$' then Set_Msg_Insertion_Unit_Name; elsif C = '{' then Set_Msg_Insertion_File_Name; elsif C = '}' then Set_Msg_Insertion_Type_Reference (Flag); elsif C = '*' then Set_Msg_Insertion_Reserved_Name; elsif C = '&' then Set_Msg_Insertion_Node; elsif C = '#' then Set_Msg_Insertion_Line_Number (Error_Msg_Sloc, Flag); elsif C = '@' then Set_Msg_Insertion_Column; elsif C = '^' then Set_Msg_Insertion_Uint; elsif C = '`' then Manual_Quote_Mode := not Manual_Quote_Mode; Set_Msg_Char ('"'); elsif C = '!' then Is_Unconditional_Msg := True; elsif C = '?' then Is_Warning_Msg := True; elsif C = ''' then Set_Msg_Char (Text (I)); I := I + 1; -- Upper case letter (start of reserved word if 2 or more) elsif C in 'A' .. 'Z' and then I <= Text'Last and then Text (I) in 'A' .. 'Z' then I := I - 1; Set_Msg_Insertion_Reserved_Word (Text, I); -- Normal character with no special treatment else Set_Msg_Char (C); end if; end loop; end Set_Msg_Text; --------------------- -- Temporary_Msg_N -- --------------------- procedure Temporary_Msg_N (Msg : String; N : Node_Id) renames Error_Msg_N; end Errout;