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Diffstat (limited to 'libguile/variable.c')
-rw-r--r--libguile/variable.c132
1 files changed, 55 insertions, 77 deletions
diff --git a/libguile/variable.c b/libguile/variable.c
index 984de26db..f87887f1f 100644
--- a/libguile/variable.c
+++ b/libguile/variable.c
@@ -42,31 +42,31 @@
#include <stdio.h>
#include "_scm.h"
+#include "eq.h"
+#include "genio.h"
+#include "smob.h"
+#include "variable.h"
-#ifdef __STDC__
-static scm_sizet
-free_var (SCM obj)
-#else
+
+static scm_sizet free_var SCM_P ((SCM obj));
+
static scm_sizet
free_var (obj)
SCM obj;
-#endif
{
return 0;
}
-#ifdef __STDC__
-static int
-prin_var (SCM exp, SCM port, int writing)
-#else
+
+static int prin_var SCM_P ((SCM exp, SCM port, scm_print_state *pstate));
+
static int
-prin_var (exp, port, writing)
+prin_var (exp, port, pstate)
SCM exp;
SCM port;
- int writing;
-#endif
+ scm_print_state *pstate;
{
scm_gen_puts (scm_regular_string, "#<variable ", port);
scm_intprint(exp, 16, port);
@@ -76,23 +76,21 @@ prin_var (exp, port, writing)
if (SCM_CAR (val_cell) != SCM_UNDEFINED)
{
scm_gen_puts (scm_regular_string, " name: ", port);
- scm_iprin1 (SCM_CAR (val_cell), port, writing);
+ scm_iprin1 (SCM_CAR (val_cell), port, pstate);
}
scm_gen_puts (scm_regular_string, " binding: ", port);
- scm_iprin1 (SCM_CDR (val_cell), port, writing);
+ scm_iprin1 (SCM_CDR (val_cell), port, pstate);
}
scm_gen_putc('>', port);
return 1;
}
-#ifdef __STDC__
-static SCM
-scm_markvar (SCM ptr)
-#else
+
+static SCM scm_markvar SCM_P ((SCM ptr));
+
static SCM
scm_markvar (ptr)
SCM ptr;
-#endif
{
if (SCM_GC8MARKP (ptr))
return SCM_BOOL_F;
@@ -100,84 +98,84 @@ scm_markvar (ptr)
return SCM_CDR (ptr);
}
+static SCM var_equal SCM_P ((SCM var1, SCM var2));
+
+static SCM
+var_equal (var1, var2)
+ SCM var1;
+ SCM var2;
+{
+ return scm_equal_p (SCM_CDR (var1), SCM_CDR (var2));
+}
+
int scm_tc16_variable;
-static scm_smobfuns variable_smob = {scm_markvar, free_var, prin_var, 0};
+static scm_smobfuns variable_smob = {scm_markvar, free_var, prin_var, var_equal};
-static SCM variable_sym;
+static SCM anonymous_variable_sym;
+
+
+static SCM make_vcell_variable SCM_P ((SCM vcell));
-#ifdef __STDC__
-static SCM
-make_vcell_variable (SCM vcell)
-#else
static SCM
make_vcell_variable (vcell)
SCM vcell;
-#endif
{
SCM answer;
SCM_NEWCELL(answer);
SCM_REDEFER_INTS;
- SCM_CAR(answer) = scm_tc16_variable;
- SCM_CDR(answer) = vcell;
+ SCM_SETCAR (answer, scm_tc16_variable);
+ SCM_SETCDR (answer, vcell);
SCM_REALLOW_INTS;
return answer;
}
-SCM_PROC(s_make_variable, "make-variable", 2, 0, 0, scm_make_variable);
-#ifdef __STDC__
-SCM
-scm_make_variable (SCM init, SCM name_hint)
-#else
+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;
-#endif
{
SCM val_cell;
+
+ if (name_hint == SCM_UNDEFINED)
+ name_hint = anonymous_variable_sym;
+
SCM_NEWCELL(val_cell);
SCM_DEFER_INTS;
- SCM_CAR(val_cell) = name_hint;
- SCM_CDR(val_cell) = init;
+ 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);
-#ifdef __STDC__
-SCM
-scm_make_undefined_variable (SCM name_hint)
-#else
+
SCM
scm_make_undefined_variable (name_hint)
SCM name_hint;
-#endif
{
SCM vcell;
if (name_hint == SCM_UNDEFINED)
- name_hint = variable_sym;
+ name_hint = anonymous_variable_sym;
SCM_NEWCELL (vcell);
SCM_DEFER_INTS;
- SCM_CAR (vcell) = name_hint;
- SCM_CDR (vcell) = SCM_UNDEFINED;
+ 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);
-#ifdef __STDC__
-SCM
-scm_variable_p (SCM obj)
-#else
+
SCM
scm_variable_p (obj)
SCM obj;
-#endif
{
return ( (SCM_NIMP(obj) && SCM_VARIABLEP (obj))
? SCM_BOOL_T
@@ -186,14 +184,10 @@ scm_variable_p (obj)
SCM_PROC(s_variable_ref, "variable-ref", 1, 0, 0, scm_variable_ref);
-#ifdef __STDC__
-SCM
-scm_variable_ref (SCM var)
-#else
+
SCM
scm_variable_ref (var)
SCM var;
-#endif
{
SCM_ASSERT (SCM_NIMP(var) && SCM_VARIABLEP(var), var, SCM_ARG1, s_variable_ref);
return SCM_CDR (SCM_CDR (var));
@@ -202,31 +196,23 @@ scm_variable_ref (var)
SCM_PROC(s_variable_set_x, "variable-set!", 2, 0, 0, scm_variable_set_x);
-#ifdef __STDC__
-SCM
-scm_variable_set_x (SCM var, SCM val)
-#else
+
SCM
scm_variable_set_x (var, val)
SCM var;
SCM val;
-#endif
{
SCM_ASSERT (SCM_NIMP(var) && SCM_VARIABLEP (var), var, SCM_ARG1, s_variable_set_x);
- SCM_CDR (SCM_CDR (var)) = val;
+ SCM_SETCDR (SCM_CDR (var), val);
return SCM_UNSPECIFIED;
}
SCM_PROC(s_builtin_variable, "builtin-variable", 1, 0, 0, scm_builtin_variable);
-#ifdef __STDC__
-SCM
-scm_builtin_variable (SCM name)
-#else
+
SCM
scm_builtin_variable (name)
SCM name;
-#endif
{
SCM vcell;
SCM var_slot;
@@ -242,7 +228,7 @@ scm_builtin_variable (name)
SCM_DEFER_INTS;
if ( SCM_IMP (SCM_CDR (var_slot))
|| (SCM_VARVCELL (var_slot) != vcell))
- SCM_CDR (var_slot) = make_vcell_variable (vcell);
+ SCM_SETCDR (var_slot, make_vcell_variable (vcell));
SCM_ALLOW_INTS;
return SCM_CDR (var_slot);
@@ -250,14 +236,10 @@ scm_builtin_variable (name)
SCM_PROC(s_variable_bound_p, "variable-bound?", 1, 0, 0, scm_variable_bound_p);
-#ifdef __STDC__
-SCM
-scm_variable_bound_p (SCM var)
-#else
+
SCM
scm_variable_bound_p (var)
SCM var;
-#endif
{
SCM_ASSERT (SCM_NIMP(var) && SCM_VARIABLEP (var), var, SCM_ARG1, s_variable_bound_p);
return (SCM_UNBNDP (SCM_CDR (SCM_VARVCELL (var)))
@@ -267,16 +249,12 @@ scm_variable_bound_p (var)
-#ifdef __STDC__
-void
-scm_init_variable (void)
-#else
+
void
scm_init_variable ()
-#endif
{
scm_tc16_variable = scm_newsmob (&variable_smob);
- variable_sym = SCM_CAR (scm_sysintern ("anonymous-variable", SCM_UNDEFINED));
+ anonymous_variable_sym = SCM_CAR (scm_sysintern ("anonymous-variable", SCM_UNDEFINED));
#include "variable.x"
}