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Diffstat (limited to 'gcc-4.7/gcc/ada/get_alfa.ads')
| -rw-r--r-- | gcc-4.7/gcc/ada/get_alfa.ads | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/gcc-4.7/gcc/ada/get_alfa.ads b/gcc-4.7/gcc/ada/get_alfa.ads new file mode 100644 index 000000000..e8c6a17aa --- /dev/null +++ b/gcc-4.7/gcc/ada/get_alfa.ads @@ -0,0 +1,58 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- G E T _ A L F A -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2011, 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 the function used to read Alfa information from an +-- ALI file and populate the tables defined in package Alfa with the result. + +generic + -- These subprograms provide access to the ALI file. Locating, opening and + -- providing access to the ALI file is the callers' responsibility. + + with function Getc return Character is <>; + -- Get next character, positioning the ALI file ready to read the following + -- character (equivalent to calling Nextc, then Skipc). If the end of file + -- is encountered, the value Types.EOF is returned. + + with function Nextc return Character is <>; + -- Look at the next character, and return it, leaving the position of the + -- file unchanged, so that a subsequent call to Getc or Nextc will return + -- this same character. If the file is positioned at the end of file, then + -- Types.EOF is returned. + + with procedure Skipc is <>; + -- Skip past the current character (which typically was read with Nextc), + -- and position to the next character, which will be returned by the next + -- call to Getc or Nextc. + +procedure Get_Alfa; +-- Load Alfa information from ALI file text format into internal Alfa tables +-- (Alfa.Alfa_Xref_Table, Alfa.Alfa_Scope_Table and Alfa.Alfa_File_Table). On +-- entry the input file is positioned to the initial 'F' of the first Alfa +-- line in the ALI file. On return, the file is positioned either to the end +-- of file, or to the first character of the line following the Alfa +-- information (which will never start with an 'F'). +-- +-- If a format error is detected in the input, then an exception is raised +-- (Ada.IO_Exceptions.Data_Error), with the file positioned to the error. |