[gforth] / gforth / source.fs  

gforth: gforth/source.fs

1 : anton 1.1 \ source location handling
2 :    
3 :     \ Copyright (C) 1995 Free Software Foundation, Inc.
4 :    
5 :     \ This file is part of Gforth.
6 :    
7 :     \ Gforth is free software; you can redistribute it and/or
8 :     \ modify it under the terms of the GNU General Public License
9 :     \ as published by the Free Software Foundation; either version 2
10 :     \ of the License, or (at your option) any later version.
11 :    
12 :     \ This program is distributed in the hope that it will be useful,
13 :     \ but WITHOUT ANY WARRANTY; without even the implied warranty of
14 :     \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 :     \ GNU General Public License for more details.
16 :    
17 :     \ You should have received a copy of the GNU General Public License
18 :     \ along with this program; if not, write to the Free Software
19 :     \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 :    
21 :    
22 : pazsan 1.3 \ related stuff can be found in kernel.fs
23 : anton 1.1
24 :     \ this stuff is used by (at least) assert.fs and debugging.fs
25 :    
26 :     require struct.fs
27 :    
28 :     struct
29 :     1 cells: field sourcepos-name#
30 :     1 cells: field sourcepos-line#
31 :     end-struct sourcepos
32 :    
33 :     : sourcepos, ( -- )
34 :     \ record the current source position HERE
35 : anton 1.2 loadfilename# @ , sourceline# , ;
36 : anton 1.1
37 :     : get-sourcepos ( a-addr -- c-addr u n )
38 :     \ c-addr u is the filename, n is the line number
39 :     included-files 2@ drop over sourcepos-name# @ 2* cells + 2@
40 :     rot sourcepos-line# @ ;
41 :    
42 :     : print-sourcepos ( a-addr -- )
43 :     get-sourcepos
44 : anton 1.4 >r type ." :"
45 :     base @ decimal r> 0 .r base ! ;
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