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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- P U T _ S P A R K _ X R E F S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 2011-2013, 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 SPARK cross-reference
+-- information from the internal tables defined in package SPARK_Xrefs, and
+-- output text information for the ALI file. The interface allows control over
+-- the destination of the output, so that this routine can also be used for
+-- debugging purposes.
+
+with Types; use Types;
+
+generic
+ -- The following procedures are used to output text information. The
+ -- destination of the text information is thus under control of the
+ -- particular instantiation. In particular, this procedure is used to
+ -- write output to the ALI file, and also for debugging output.
+
+ with function Write_Info_Col return Positive is <>;
+ -- Return the column in which the next character will be written
+
+ with procedure Write_Info_Char (C : Character) is <>;
+ -- Output one character
+
+ with procedure Write_Info_Initiate (Key : Character) is <>;
+ -- Initiate write of new line to output file, the parameter is the
+ -- keyword character for the line.
+
+ with procedure Write_Info_Nat (N : Nat) is <>;
+ -- Write image of N to output file with no leading or trailing blanks
+
+ with procedure Write_Info_Terminate is <>;
+ -- Terminate current info line and output lines built in Info_Buffer
+
+procedure Put_SPARK_Xrefs;
+-- Read information from SPARK tables (SPARK_Xrefs.SPARK_Xref_Table,
+-- SPARK_Xrefs.SPARK_Scope_Table and SPARK_Xrefs.SPARK_File_Table) and output
+-- corresponding information in ALI format using the Write_Info procedures.