Annotation of gforth/source.fs, revision 1.18

1.1       anton       1: \ source location handling
                      2: 
1.17      anton       3: \ Copyright (C) 1995,1997,2003,2004 Free Software Foundation, Inc.
1.1       anton       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
1.18    ! anton       9: \ as published by the Free Software Foundation, either version 3
1.1       anton      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
1.18    ! anton      18: \ along with this program. If not, see http://www.gnu.org/licenses/.
1.1       anton      19: 
1.3       pazsan     20: \ related stuff can be found in kernel.fs
1.1       anton      21: 
1.9       anton      22: \ this stuff is used by (at least) assert.fs and debugs.fs
1.1       anton      23: 
1.10      anton      24: : loadfilename#>str ( n -- addr u )
1.12      anton      25:     included-files 2@ rot min 2* cells + 2@ ;
1.10      anton      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
1.11      anton      34:     drop 2drop 0 ;
1.10      anton      35: 
1.16      anton      36: : current-sourcepos ( -- nfile nline )
1.15      anton      37:     sourcefilename  str>loadfilename# sourceline# ;
                     38: 
1.9       anton      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.
1.15      anton      42:     current-sourcepos swap postpone literal postpone literal ;
1.9       anton      43: 
                     44: : .sourcepos ( nfile nline -- )
                     45:     \ print source position
                     46:     swap loadfilename#>str type ." :"
                     47:     base @ decimal swap 0 .r base ! ;
1.15      anton      48: 

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