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Annotation of gforth/source.fs, revision 1.1

1.1     ! anton       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: \ related stuff can be found in kernal.fs
        !            23: 
        !            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:     loadfilename# @ , loadline @ , ;
        !            36: 
        !            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:     >r type ." :" r> 0 .r ;