--- gforth/glocals.fs 1998/10/10 10:28:34 1.36 +++ gforth/glocals.fs 1999/05/03 09:46:20 1.41 @@ -1,6 +1,6 @@ \ 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. @@ -129,7 +129,7 @@ require float.fs slowvoc @ slowvoc on \ we want a linked list for the vocabulary locals vocabulary locals \ this contains the local variables -' locals >body ' locals-list >body ! +' locals >body wordlist-id ' locals-list >body ! slowvoc ! create locals-buffer 1000 allot \ !! limited and unsafe @@ -195,12 +195,12 @@ variable locals-dp \ so here's the speci faligned nip ; : set-locals-size-list ( list -- ) - dup locals-list wordlist-id ! + dup locals-list ! list-size locals-size ! ; : check-begin ( list -- ) \ warn if list is not a sublist of locals-list - locals-list wordlist-id @ sub-list? 0= if + locals-list @ sub-list? 0= if \ !! print current position ." compiler was overly optimistic about locals at a BEGIN" cr \ !! print assumption and reality @@ -292,8 +292,19 @@ locals-types definitions postpone laddr# @ lp-offset, ; \ you may want to make comments in a locals definitions group: -' \ alias \ immediate -' ( alias ( immediate +' \ alias \ ( -- ) \ core-ext,block-ext backslash +\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' -- ; run-time -- ) \ core,file paren +\G Comment: parse and discard all subsequent characters in the parse +\G area until ")" 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 ")" delimiter, Gforth +\G will generate a warning. +immediate forth definitions @@ -324,11 +335,13 @@ create new-locals-map ( -- wordlist-map ' drop A, \ rehash method ' drop A, -slowvoc @ -slowvoc on -vocabulary new-locals -slowvoc ! -new-locals-map ' new-locals >body wordlist-map A! \ !! use special access words +new-locals-map mappedwordlist Constant new-locals-wl + +\ slowvoc @ +\ slowvoc on +\ vocabulary new-locals +\ slowvoc ! +\ new-locals-map ' new-locals >body wordlist-map A! \ !! use special access words variable old-dpp @@ -337,7 +350,7 @@ variable old-dpp dp old-dpp ! locals-dp dpp ! lastxt get-current - also new-locals + get-order new-locals-wl swap 1+ set-order also locals definitions locals-types 0 TO locals-wordlist 0 postpone [ ; immediate @@ -356,7 +369,7 @@ locals-types definitions locals-size @ alignlp-f locals-size ! \ the strictest alignment previous previous set-current lastcfa ! - locals-list TO locals-wordlist ; + locals-list 0 wordlist-id - TO locals-wordlist ; : -- ( addr wid 0 ... -- ) \ gforth dash-dash } @@ -460,9 +473,9 @@ forth definitions cs-push-part scopestart ; immediate : adjust-locals-list ( wid -- ) - locals-list wordlist-id @ common-list + locals-list @ common-list dup list-size adjust-locals-size - locals-list wordlist-id ! ; + locals-list ! ; : endscope ( compilation scope -- ; run-time -- ) \ gforth scope? @@ -477,7 +490,7 @@ forth definitions clear-leave-stack 0 locals-size ! locals-buffer locals-dp ! - 0 locals-list wordlist-id ! + 0 locals-list ! dead-code off defstart ;