\ Current object structure
\ Copyright (C) 2012 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation, either version 3
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program. If not, see http://www.gnu.org/licenses/.
\ This file is part of the Forth meta object protocol effort
user op \ object pointer
: o#+ ( #o -- a ) r> dup cell+ >r @ op @ + ; compile-only
: >o ( a -- r:a' ) r> op @ >r >r op ! ; compile-only
: o> ( r:a -- ) r> r> op ! >r ; compile-only
: o+ o#+ [ 0 , ] + ;
: field-context: ( xt-comp xt-int -- ) Create , , DOES> do-field, ! ;
' lit+ ' + field-context: default-field
' o#+ ' o+ field-context: current-field
: context+field ( n1 n2 "name" -- n3 ) \ X:structures plus-field
create-interpret/compile over , +
@ do-field, @ perform
@ do-field, @ cell+ @ compile, ,
: context:field ['] context+field IS +field ;