###############################################################################
#
#	File:     process_id.icn
#
#	Subject:  russell language support procedures
#
#	Author:   Dennis J Darland
#
#	Date:     October - Novmber, 2015
#
###############################################################################
#
# Copyright 1986-1989 Hans-Juergen Boehm, Alan J. Demers, Kumar Srikantan,
# Vernon Lee, and Lucy Hederman.
# Copyright Digital Equipment Corporation & INRIA 1988, 1989.
# Copyright (c) 1990-1993 by Xerox Corporation.  All rights reserved.
#
# This material is provided as is, with no warranty expressed or implied.
# Any use is at your own risk.
#
# Permission is hereby granted to copy this compiler for any non-commercial
# purpose, provided the above notices are retained on all copies.  Further
# restrictions apply to the DEC/INRIA BigNum package.  These are stated in
# the file runtime/BigNum/doc/bnbody.tex.
#
# This work uses the BigNum package developed jointly by INRIA and
# Digital PRL.  It has been modified by Hans-J. Boehm in August 1990
# and February 1993 at Xerox PARC.  When you receive this software,
# please send mail to librarian@prl.dec.com to inform them that you
# have a copy of the package.
###############################################################################
#
#   NOTE From Dennis J. Darland (11/2/2015)
#
#   I obtained the "c" language source code for "russell" copyrighted above
#   in the 1990's. I have made efforts to get it to work over the years, but
#   always failed. It has many hardware and OS dependancies. Now (October 2015
#   forward, I am tring to port to the language "Unicon". Practically every
#   line of code will need to be changed, as someing as simple as the
#   assignment operator is different. Also I will not use the BigNum package
#   mentioned above. Also I am doing this not for profit, and am sharing
#   freely. I am not at all confident that I will get it working well, but
#   believe in open source, so am sharing my work as I make progress.
#   Unicon is also much more portable.
#
###############################################################################


$include "defs.icn"
$include "global_vars.icn"


#
#  process_id(idnode)
#
#  If the last_definition field of the id node is not NIL,
#  point it at the last definition of that id (as given in Idtable).
#
# extern STACK lti_stack;
# stack of enclosing type signature nodes
# extern NODE * usl_ptr;
# pointer to node for next enclosing use list
procedure process_id(idnode)
    local ip

    if (/idnode.id_use_list) then
	idnode.id_use_list := usl_ptr
# Not necessary. Subsequent passes treat this specially
    if (idnode.id_str_table_index == -1) then  {
	# innermost local type id *
	    #	idnode.id_last_definition = top(lti_stack);
	#
    } else if (/idnode.id_last_definition) then {
	ip := retrieve(idnode.id_str_table_index)
	idnode.id_last_definition := ip.i_value
    }
return TRUE
end

