Restore original scattering when the transform is not legal.

[pf3gnuchains/gcc-fork.git] / gcc / input.h

diff --git a/gcc/input.h b/gcc/input.h
index 28bb648..299f56c 100644 (file)
--- a/gcc/input.h
+++ b/gcc/input.h
@@ -1,12 +1,13 @@
 /* Declarations for variables relating to reading the source file.
    Used by parsers, lexical analyzers, and error message routines.
 /* Declarations for variables relating to reading the source file.
    Used by parsers, lexical analyzers, and error message routines.

-   Copyright (C) 1993, 1997, 1998, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1997, 1998, 2000, 2003, 2004, 2007, 2008
+   Free Software Foundation, Inc.

 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free

-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later

 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -15,35 +16,53 @@ 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
 for more details.
 
 You should have received a copy of the GNU General Public License

-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */

 
 

-/* Source file current line is coming from.  */
-extern const char *input_filename;
+#ifndef GCC_INPUT_H
+#define GCC_INPUT_H

 
 

-/* Top-level source file.  */
-extern const char *main_input_filename;
+#include "line-map.h"
+
+extern GTY(()) struct line_maps *line_table;
+
+/* A value which will never be used to represent a real location.  */
+#define UNKNOWN_LOCATION ((source_location) 0)
+
+/* The location for declarations in "<built-in>" */
+#define BUILTINS_LOCATION ((source_location) 2)
+
+typedef struct GTY (())
+{
+  /* The name of the source file involved.  */
+  const char *file;

 
 

-/* Line number in current source file.  */
-extern int lineno;
+  /* The line-location in the source file.  */
+  int line;

 
 

-/* Stream for reading from input file.  */
-extern FILE *finput;
+  int column;
+
+  /* In a system header?. */
+  bool sysp;
+} expanded_location;
+
+extern expanded_location expand_location (source_location);
+
+/* Historically GCC used location_t, while cpp used source_location.
+   This could be removed but it hardly seems worth the effort.  */
+typedef source_location location_t;
+
+/* Top-level source file.  */
+extern const char *main_input_filename;

 
 

-struct file_stack
-  {
-    const char *name;
-    struct file_stack *next;
-    int line;
-  };
+extern location_t input_location;

 
 

-/* Stack of currently pending input files.
-   The line member is not accurate for the innermost file on the stack.  */
-extern struct file_stack *input_file_stack;
+#define LOCATION_FILE(LOC) ((expand_location (LOC)).file)
+#define LOCATION_LINE(LOC) ((expand_location (LOC)).line)

 
 

-/* Incremented on each change to input_file_stack.  */
-extern int input_file_stack_tick;
+#define input_line LOCATION_LINE (input_location)
+#define input_filename LOCATION_FILE (input_location)
+#define in_system_header_at(LOC) ((expand_location (LOC)).sysp != 0)
+#define in_system_header (in_system_header_at (input_location))

 
 

-extern void push_srcloc PARAMS ((const char *name, int line));
-extern void pop_srcloc PARAMS ((void));
+#endif