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Diffstat (limited to 'gcc-4.9/gcc/ada/errutil.ads')
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diff --git a/gcc-4.9/gcc/ada/errutil.ads b/gcc-4.9/gcc/ada/errutil.ads new file mode 100644 index 000000000..fa6ad53b1 --- /dev/null +++ b/gcc-4.9/gcc/ada/errutil.ads @@ -0,0 +1,153 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- E R R U T I L -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2002-2012, Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 3, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING3. If not, go to -- +-- http://www.gnu.org/licenses for a complete copy of the license. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains routines to output error messages and the +-- corresponding instantiation of Styleg, suitable to instantiate Scng. + +-- It uses the same global variables as Errout, located in packages Atree and +-- Err_Vars. Like Errout, it also uses the common variables and routines +-- in package Erroutc. + +-- This package is used by the preprocessor (gprep.adb) and the project +-- manager (prj-err.ads). + +with Styleg; +with Types; use Types; + +package Errutil is + + --------------------------------------------------------- + -- Error Message Text and Message Insertion Characters -- + --------------------------------------------------------- + + -- Error message text strings are composed of lower case letters, digits + -- and the special characters space, comma, period, colon and semicolon, + -- apostrophe and parentheses. Special insertion characters can also + -- appear which cause the error message circuit to modify the given + -- string. For a full list of these, see the spec of errout. + + ----------------------------------------------------- + -- Format of Messages and Manual Quotation Control -- + ----------------------------------------------------- + + -- Messages are generally all in lower case, except for inserted names + -- and appear in one of the following two forms: + + -- error: text + -- warning: text + + -- The prefixes error and warning are supplied automatically (depending + -- on the use of the ? insertion character), and the call to the error + -- message routine supplies the text. The "error: " prefix is omitted + -- in brief error message formats. + + -- Reserved keywords in the message are in the default keyword case + -- (determined from the given source program), surrounded by quotation + -- marks. This is achieved by spelling the reserved word in upper case + -- letters, which is recognized as a request for insertion of quotation + -- marks by the error text processor. Thus for example: + + -- Error_Msg_AP ("IS expected"); + + -- would result in the output of one of the following: + + -- error: "is" expected + -- error: "IS" expected + -- error: "Is" expected + + -- the choice between these being made by looking at the casing convention + -- used for keywords (actually the first compilation unit keyword) in the + -- source file. + + -- In the case of names, the default mode for the error text processor + -- is to surround the name by quotation marks automatically. The case + -- used for the identifier names is taken from the source program where + -- possible, and otherwise is the default casing convention taken from + -- the source file usage. + + -- In some cases, better control over the placement of quote marks is + -- required. This is achieved using manual quotation mode. In this mode, + -- one or more insertion sequences is surrounded by backquote characters. + -- The backquote characters are output as double quote marks, and normal + -- automatic insertion of quotes is suppressed between the double quotes. + -- For example: + + -- Error_Msg_AP ("`END &;` expected"); + + -- generates a message like + + -- error: "end Open_Scope;" expected + + -- where the node specifying the name Open_Scope has been stored in + -- Error_Msg_Node_1 prior to the call. The great majority of error + -- messages operates in normal quotation mode. + + -- Note: the normal automatic insertion of spaces before insertion + -- sequences (such as those that come from & and %) is suppressed in + -- manual quotation mode, so blanks, if needed as in the above example, + -- must be explicitly present. + + ------------------------------ + -- Error Output Subprograms -- + ------------------------------ + + procedure Initialize; + -- Initializes for output of error messages. Must be called for each + -- file before using any of the other routines in the package. + + procedure Finalize (Source_Type : String := "project"); + -- Finalize processing of error messages for one file and output message + -- indicating the number of detected errors. + -- Source_Type is used in verbose mode to indicate the type of the source + -- being parsed (project file, definition file or input file for the + -- preprocessor). + + procedure Error_Msg (Msg : String; Flag_Location : Source_Ptr); + -- Output a message at specified location + + procedure Error_Msg_S (Msg : String); + -- Output a message at current scan pointer location + + procedure Error_Msg_SC (Msg : String); + -- Output a message at the start of the current token, unless we are at + -- the end of file, in which case we always output the message after the + -- last real token in the file. + + procedure Error_Msg_SP (Msg : String); + -- Output a message at the start of the previous token + + procedure Set_Ignore_Errors (To : Boolean); + -- Indicate, when To = True, that all reported errors should + -- be ignored. By default reported errors are not ignored. + + package Style is new Styleg + (Error_Msg => Error_Msg, + Error_Msg_S => Error_Msg_S, + Error_Msg_SC => Error_Msg_SC, + Error_Msg_SP => Error_Msg_SP); + -- Instantiation of the generic style package, suitable for an + -- instantiation of Scng. + +end Errutil; |