Diff for /gforth/glocals.fs between versions 1.35 and 1.40

version 1.35, 1997/10/04 17:33:53 version 1.40, 1999/03/23 20:24:18
Line 1 Line 1
 \ A powerful locals implementation  \ A powerful locals implementation
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 129  require float.fs Line 129  require float.fs
 slowvoc @  slowvoc @
 slowvoc on \ we want a linked list for the vocabulary locals  slowvoc on \ we want a linked list for the vocabulary locals
 vocabulary locals \ this contains the local variables  vocabulary locals \ this contains the local variables
 ' locals >body ' locals-list >body !  ' locals >body wordlist-id ' locals-list >body !
 slowvoc !  slowvoc !
   
 create locals-buffer 1000 allot \ !! limited and unsafe  create locals-buffer 1000 allot \ !! limited and unsafe
Line 183  variable locals-dp \ so here's the speci Line 183  variable locals-dp \ so here's the speci
  = ;   = ;
   
 : list-size ( list -- u ) \ gforth-internal  : list-size ( list -- u ) \ gforth-internal
 \ size of the locals frame represented by list      \ size of the locals frame represented by list
  0 ( list n )      0 ( list n )
  begin      begin
    over 0<>          over 0<>
  while      while
    over          over
    ((name>)) >body @ max          ((name>)) >body @ max
    swap @ swap ( get next )          swap @ swap ( get next )
  repeat      repeat
  faligned nip ;      faligned nip ;
   
 : set-locals-size-list ( list -- )  : set-locals-size-list ( list -- )
  dup locals-list !      dup locals-list !
  list-size locals-size ! ;      list-size locals-size ! ;
   
 : check-begin ( list -- )  : check-begin ( list -- )
 \ warn if list is not a sublist of locals-list  \ warn if list is not a sublist of locals-list
Line 292  locals-types definitions Line 292  locals-types definitions
         postpone laddr# @ lp-offset, ;          postpone laddr# @ lp-offset, ;
   
 \ you may want to make comments in a locals definitions group:  \ you may want to make comments in a locals definitions group:
 ' \ alias \ immediate  ' \ alias \ ( -- ) \ core-ext,block-ext backslash
 ' ( alias ( immediate  \G Line comment: if @code{BLK} contains 0, parse and discard the remainder
   \G of the parse area. Otherwise, parse and discard all subsequent characters in the
   \G parse area corresponding to the current line.
   immediate 
   
   ' ( alias ( ( compilation 'ccc<close-paren>' -- ; run-time -- ) \ core,file     paren
   \G Comment: parse and discard all subsequent characters in the parse
   \G area until "@code{)}" is encountered. During interactive input, an end-of-line
   \G also acts as a comment terminator. For file input, it does not; if the
   \G end-of-file is encountered whilst parsing for the "@code{)}" delimiter, Gforth
   \G will generate a warning.
   immediate
   
 forth definitions  forth definitions
   
Line 328  slowvoc @ Line 339  slowvoc @
 slowvoc on  slowvoc on
 vocabulary new-locals  vocabulary new-locals
 slowvoc !  slowvoc !
 new-locals-map ' new-locals >body cell+ A! \ !! use special access words  new-locals-map ' new-locals >body wordlist-map A! \ !! use special access words
   
 variable old-dpp  variable old-dpp
   
Line 356  locals-types definitions Line 367  locals-types definitions
     locals-size @ alignlp-f locals-size ! \ the strictest alignment      locals-size @ alignlp-f locals-size ! \ the strictest alignment
     previous previous      previous previous
     set-current lastcfa !      set-current lastcfa !
     locals-list TO locals-wordlist ;      locals-list 0 wordlist-id - TO locals-wordlist ;
   
 : -- ( addr wid 0 ... -- ) \ gforth dash-dash  : -- ( addr wid 0 ... -- ) \ gforth dash-dash
     }      }
Line 457  forth definitions Line 468  forth definitions
 \ explicit scoping  \ explicit scoping
   
 : scope ( compilation  -- scope ; run-time  -- ) \ gforth  : scope ( compilation  -- scope ; run-time  -- ) \ gforth
  cs-push-part scopestart ; immediate      cs-push-part scopestart ; immediate
   
   : adjust-locals-list ( wid -- )
       locals-list @ common-list
       dup list-size adjust-locals-size
       locals-list ! ;
   
 : endscope ( compilation scope -- ; run-time  -- ) \ gforth  : endscope ( compilation scope -- ; run-time  -- ) \ gforth
  scope?      scope?
  drop      drop  adjust-locals-list ; immediate
  locals-list @ common-list  
  dup list-size adjust-locals-size  
  locals-list ! ; immediate  
   
 \ adapt the hooks  \ adapt the hooks
   
Line 510  forth definitions Line 523  forth definitions
         else \ both live          else \ both live
             over list-size adjust-locals-size              over list-size adjust-locals-size
             >resolve              >resolve
             locals-list @ common-list dup list-size adjust-locals-size              adjust-locals-list
             locals-list !  
         then          then
     then ;      then ;
   

Removed from v.1.35  
changed lines
  Added in v.1.40


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