summaryrefslogtreecommitdiff
path: root/libguile/variable.c
diff options
context:
space:
mode:
Diffstat (limited to 'libguile/variable.c')
-rw-r--r--libguile/variable.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/libguile/variable.c b/libguile/variable.c
deleted file mode 100644
index 692219c0a..000000000
--- a/libguile/variable.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
- *
- * This program 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 2, 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 software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-
-
-#include <stdio.h>
-#include "_scm.h"
-#include "genio.h"
-#include "smob.h"
-
-#include "variable.h"
-
-
-static scm_sizet free_var SCM_P ((SCM obj));
-
-static scm_sizet
-free_var (obj)
- SCM obj;
-{
- return 0;
-}
-
-
-
-static int prin_var SCM_P ((SCM exp, SCM port, scm_print_state *pstate));
-
-static int
-prin_var (exp, port, pstate)
- SCM exp;
- SCM port;
- scm_print_state *pstate;
-{
- scm_gen_puts (scm_regular_string, "#<variable ", port);
- scm_intprint(exp, 16, port);
- {
- SCM val_cell;
- val_cell = SCM_CDR(exp);
- if (SCM_CAR (val_cell) != SCM_UNDEFINED)
- {
- scm_gen_puts (scm_regular_string, " name: ", port);
- scm_iprin1 (SCM_CAR (val_cell), port, pstate);
- }
- scm_gen_puts (scm_regular_string, " binding: ", port);
- scm_iprin1 (SCM_CDR (val_cell), port, pstate);
- }
- scm_gen_putc('>', port);
- return 1;
-}
-
-
-static SCM scm_markvar SCM_P ((SCM ptr));
-
-static SCM
-scm_markvar (ptr)
- SCM ptr;
-{
- if (SCM_GC8MARKP (ptr))
- return SCM_BOOL_F;
- SCM_SETGC8MARK (ptr);
- return SCM_CDR (ptr);
-}
-
-int scm_tc16_variable;
-static scm_smobfuns variable_smob = {scm_markvar, free_var, prin_var, 0};
-
-
-static SCM anonymous_variable_sym;
-
-
-static SCM make_vcell_variable SCM_P ((SCM vcell));
-
-static SCM
-make_vcell_variable (vcell)
- SCM vcell;
-{
- SCM answer;
- SCM_NEWCELL(answer);
- SCM_REDEFER_INTS;
- SCM_SETCAR (answer, scm_tc16_variable);
- SCM_SETCDR (answer, vcell);
- SCM_REALLOW_INTS;
- return answer;
-}
-
-SCM_PROC(s_make_variable, "make-variable", 1, 1, 0, scm_make_variable);
-
-SCM
-scm_make_variable (init, name_hint)
- SCM init;
- SCM name_hint;
-{
- SCM val_cell;
-
- if (name_hint == SCM_UNDEFINED)
- name_hint = anonymous_variable_sym;
-
- SCM_NEWCELL(val_cell);
- SCM_DEFER_INTS;
- SCM_SETCAR (val_cell, name_hint);
- SCM_SETCDR (val_cell, init);
- SCM_ALLOW_INTS;
- return make_vcell_variable (val_cell);
-}
-
-
-SCM_PROC(s_make_undefined_variable, "make-undefined-variable", 0, 1, 0, scm_make_undefined_variable);
-
-SCM
-scm_make_undefined_variable (name_hint)
- SCM name_hint;
-{
- SCM vcell;
-
- if (name_hint == SCM_UNDEFINED)
- name_hint = anonymous_variable_sym;
-
- SCM_NEWCELL (vcell);
- SCM_DEFER_INTS;
- SCM_SETCAR (vcell, name_hint);
- SCM_SETCDR (vcell, SCM_UNDEFINED);
- SCM_ALLOW_INTS;
- return make_vcell_variable (vcell);
-}
-
-
-SCM_PROC(s_variable_p, "variable?", 1, 0, 0, scm_variable_p);
-
-SCM
-scm_variable_p (obj)
- SCM obj;
-{
- return ( (SCM_NIMP(obj) && SCM_VARIABLEP (obj))
- ? SCM_BOOL_T
- : SCM_BOOL_F);
-}
-
-
-SCM_PROC(s_variable_ref, "variable-ref", 1, 0, 0, scm_variable_ref);
-
-SCM
-scm_variable_ref (var)
- SCM var;
-{
- SCM_ASSERT (SCM_NIMP(var) && SCM_VARIABLEP(var), var, SCM_ARG1, s_variable_ref);
- return SCM_CDR (SCM_CDR (var));
-}
-
-
-
-SCM_PROC(s_variable_set_x, "variable-set!", 2, 0, 0, scm_variable_set_x);
-
-SCM
-scm_variable_set_x (var, val)
- SCM var;
- SCM val;
-{
- SCM_ASSERT (SCM_NIMP(var) && SCM_VARIABLEP (var), var, SCM_ARG1, s_variable_set_x);
- SCM_SETCDR (SCM_CDR (var), val);
- return SCM_UNSPECIFIED;
-}
-
-
-SCM_PROC(s_builtin_variable, "builtin-variable", 1, 0, 0, scm_builtin_variable);
-
-SCM
-scm_builtin_variable (name)
- SCM name;
-{
- SCM vcell;
- SCM var_slot;
-
- SCM_ASSERT (SCM_NIMP (name) && SCM_SYMBOLP (name), name, SCM_ARG1, s_builtin_variable);
- vcell = scm_sym2vcell (name, SCM_BOOL_F, SCM_BOOL_T);
- if (vcell == SCM_BOOL_F)
- return SCM_BOOL_F;
-
- scm_intern_symbol (scm_symhash_vars, name);
- var_slot = scm_sym2ovcell (name, scm_symhash_vars);
-
- SCM_DEFER_INTS;
- if ( SCM_IMP (SCM_CDR (var_slot))
- || (SCM_VARVCELL (var_slot) != vcell))
- SCM_SETCDR (var_slot, make_vcell_variable (vcell));
- SCM_ALLOW_INTS;
-
- return SCM_CDR (var_slot);
-}
-
-
-SCM_PROC(s_variable_bound_p, "variable-bound?", 1, 0, 0, scm_variable_bound_p);
-
-SCM
-scm_variable_bound_p (var)
- SCM var;
-{
- SCM_ASSERT (SCM_NIMP(var) && SCM_VARIABLEP (var), var, SCM_ARG1, s_variable_bound_p);
- return (SCM_UNBNDP (SCM_CDR (SCM_VARVCELL (var)))
- ? SCM_BOOL_F
- : SCM_BOOL_T);
-}
-
-
-
-
-void
-scm_init_variable ()
-{
- scm_tc16_variable = scm_newsmob (&variable_smob);
- anonymous_variable_sym = SCM_CAR (scm_sysintern ("anonymous-variable", SCM_UNDEFINED));
-#include "variable.x"
-}
-