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/*
Crown Copyright (c) 1997
This TenDRA(r) Computer Program is subject to Copyright
owned by the United Kingdom Secretary of State for Defence
acting through the Defence Evaluation and Research Agency
(DERA). It is made available to Recipients with a
royalty-free licence for its use, reproduction, transfer
to other parties and amendment for any purpose not excluding
product development provided that any such use et cetera
shall be deemed to be acceptance of the following conditions:-
(1) Its Recipients shall ensure that this Notice is
reproduced upon any copies or amended versions of it;
(2) Any amended version of it shall be clearly marked to
show both the nature of and the organisation responsible
for the relevant amendment or amendments;
(3) Its onward transfer from a recipient to another
party shall be deemed to be that party's acceptance of
these conditions;
(4) DERA gives no warranty or assurance as to its
quality or suitability for any purpose and DERA accepts
no liability whatsoever in relation to any use to which
it may be put.
*/
/**********************************************************************
$Author: release $
$Date: 1998/01/17 15:56:06 $
$Revision: 1.1.1.1 $
$Log: spec_tok.c,v $
* Revision 1.1.1.1 1998/01/17 15:56:06 release
* First version to be checked into rolling release.
*
* Revision 1.1 1995/04/13 09:08:06 currie
* Initial revision
*
***********************************************************************/
/*
^^^ 21/12/92 jmf Added ~div as special token
^^^ 26/03/93 jmf Changes for new spec 2.1
^^^ 24/05/93 jmf Added ~alloca as special token, not alloc
^^^ 10/06/93 jmf Change long to int, remove extern declarations.
^^^ 19/08/93 jmf Put arith_type, promote, sign_promote, convert
^^^ into c_arith-type.h in machine directories.
^^^ 19/08/93 jmf Set crt_lno in exp_to_source
^^^ 23/09/93 jmf Use natmacs.h
*/
#include "config.h"
#include "common_types.h"
#include "basicread.h"
#include "tags.h"
#include "exp.h"
#include "expmacs.h"
#include "diag_fns.h"
#include "flags.h"
#include "check.h"
#include "me_fns.h"
#include "externs.h"
#include "installglob.h"
#include "messages_r.h"
#include "main_reads.h"
#include "install_fns.h"
#include "c_arith_type.h"
#include "natmacs.h"
#include "spec_tok.h"
/* intercepts specially defined tokens */
tokval special_token
PROTO_N ( (t, pars, sortcode, done) )
PROTO_T ( token t X bitstream pars X int sortcode X int * done )
{
tokval tkv;
UNUSED(sortcode);
if (t -> tok_name == (char*)0) {
SET(tkv); /* call looks at done to see if result is meaningful */
return tkv;
};
#if is80x86
if (!strcmp(t -> tok_name, "~div")) {
exp arg1, arg2;
place old_place;
old_place = keep_place();
set_place(pars);
arg1 = hold_check(d_exp());
arg2 = hold_check(d_exp());
set_place(old_place);
tkv.tk_exp = me_b2(arg1, arg2, div0_tag);
*done = 1;
return tkv;
};
if (!strcmp(t -> tok_name, "~arith_type")) {
int a, b;
place old_place;
signed_nat sn;
old_place = keep_place();
set_place(pars);
sn = d_signed_nat();
a = snatint(sn);
sn = d_signed_nat();
b = snatint(sn);
set_place(old_place);
snatint(sn) = arith_type(a, b);
tkv.tk_signed_nat = sn;
*done = 1;
return tkv;
};
if (!strcmp(t -> tok_name, "~promote")) {
int a;
place old_place;
signed_nat sn;
old_place = keep_place();
set_place(pars);
sn = d_signed_nat();
a = snatint(sn);
set_place(old_place);
snatint(sn) = promote(a);
tkv.tk_signed_nat = sn;
*done = 1;
return tkv;
};
if (!strcmp(t -> tok_name, "~sign_promote")) {
int a;
place old_place;
signed_nat sn;
old_place = keep_place();
set_place(pars);
sn = d_signed_nat();
a = snatint(sn);
set_place(old_place);
snatint(sn) = sign_promote(a);
tkv.tk_signed_nat = sn;
*done = 1;
return tkv;
};
if (!strcmp(t -> tok_name, "~convert")) {
int a;
place old_place;
signed_nat sn;
old_place = keep_place();
set_place(pars);
sn = d_signed_nat();
a = snatint(sn);
set_place(old_place);
tkv.tk_variety = convert((unsigned)a);
*done = 1;
return tkv;
};
#endif
if (!strcmp(t -> tok_name, "~alloca")) {
exp arg1;
place old_place;
old_place = keep_place();
set_place(pars);
arg1 = hold_check(d_exp());
set_place(old_place);
tkv.tk_exp = hold_check(me_u3(f_pointer(long_to_al(8)),
arg1, alloca_tag));
*done = 1;
has_alloca = 1;
return tkv;
};
if (!strcmp(t -> tok_name, "~exp_to_source") ||
!strcmp(t -> tok_name, "~diag_id_scope") ||
!strcmp(t -> tok_name, "~diag_type_scope") ||
!strcmp(t -> tok_name, "~diag_tag_scope")) {
place old_place;
old_place = keep_place();
set_place(pars);
tkv.tk_exp = hold_check(d_exp());
*done = 1;
if (!diagnose)
{
set_place(old_place);
return tkv;
};
if (!strcmp(t -> tok_name, "~exp_to_source"))
{exp r;
diag_info * di = read_exp_to_source();
crt_lno = natint(di -> data.source.end.line_no);
crt_charno = natint(di -> data.source.end.char_off);
crt_flnm = di -> data.source.beg.file->file.ints.chars;
r = getexp(sh(tkv.tk_exp), nilexp, 0, tkv.tk_exp, nilexp,
1, 0, diagnose_tag);
setfather(r, tkv.tk_exp);
dno(r) = di;
tkv.tk_exp = r;
set_place(old_place);
return tkv;
};
if (!strcmp(t -> tok_name, "~diag_id_scope"))
{exp r;
diag_info * di = read_diag_id_scope();
r = getexp(sh(tkv.tk_exp), nilexp, 0, tkv.tk_exp, nilexp,
2, 0, diagnose_tag);
setfather(r, tkv.tk_exp);
dno(r) = di;
tkv.tk_exp = r;
set_place(old_place);
return tkv;
};
if (!strcmp(t -> tok_name, "~diag_type_scope"))
{exp r;
diag_info * di = read_diag_type_scope();
r = getexp(sh(tkv.tk_exp), nilexp, 0, tkv.tk_exp, nilexp,
3, 0, diagnose_tag);
setfather(r, tkv.tk_exp);
dno(r) = di;
tkv.tk_exp = r;
set_place(old_place);
return tkv;
};
if (!strcmp(t -> tok_name, "~diag_tag_scope"))
{exp r;
diag_info * di = read_diag_tag_scope();
r = getexp(sh(tkv.tk_exp), nilexp, 0, tkv.tk_exp, nilexp,
4, 0, diagnose_tag);
setfather(r, tkv.tk_exp);
dno(r) = di;
tkv.tk_exp = r;
set_place(old_place);
return tkv;
};
};
SET(tkv); /* call looks at done to see if result is meaningful */
return tkv;
}