File:  [gforth] / gforth / source.fs
Revision 1.19: download - view: text, annotated - select for diffs
Mon Dec 31 19:02:24 2007 UTC (11 years, 8 months ago) by anton
Branches: MAIN
CVS tags: v0-7-0, HEAD
updated copyright year after changing license notice

    1: \ source location handling
    2: 
    3: \ Copyright (C) 1995,1997,2003,2004,2007 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 3
   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, see http://www.gnu.org/licenses/.
   19: 
   20: \ related stuff can be found in kernel.fs
   21: 
   22: \ this stuff is used by (at least) assert.fs and debugs.fs
   23: 
   24: : loadfilename#>str ( n -- addr u )
   25:     included-files 2@ rot min 2* cells + 2@ ;
   26: 
   27: : str>loadfilename# ( addr u -- n )
   28:     included-files 2@ 0 ?do ( addr u included-files )
   29: 	i over >r 2* cells + 2@
   30: 	2over str= if
   31: 	    rdrop 2drop i unloop exit
   32: 	endif
   33: 	r> loop
   34:     drop 2drop 0 ;
   35: 
   36: : current-sourcepos ( -- nfile nline )
   37:     sourcefilename  str>loadfilename# sourceline# ;
   38: 
   39: : compile-sourcepos ( compile-time: -- ; run-time: -- nfile nline )
   40:     \ compile the current source position as literals: nfile is the
   41:     \ source file index, nline the line number within the file.
   42:     current-sourcepos swap postpone literal postpone literal ;
   43: 
   44: : .sourcepos ( nfile nline -- )
   45:     \ print source position
   46:     swap loadfilename#>str type ." :"
   47:     base @ decimal swap 0 .r base ! ;
   48: 

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>