static int sexp_object_compare (sexp ctx, sexp a, sexp b) {
int res;
if (a == b)
return 0;
if (sexp_pointerp(a)) {
if (sexp_pointerp(b)) {
if (sexp_pointer_tag(a) != sexp_pointer_tag(b)) {
res = sexp_pointer_tag(a) - sexp_pointer_tag(b);
} else {
switch (sexp_pointer_tag(a)) {
case SEXP_FLONUM:
res = sexp_flonum_value(a) - sexp_flonum_value(b);
break;
case SEXP_BIGNUM:
res = sexp_bignum_compare(a, b);
break;
case SEXP_STRING:
res = strcmp(sexp_string_data(a), sexp_string_data(b));
break;
case SEXP_SYMBOL:
res = strcmp(sexp_symbol_data(a), sexp_symbol_data(b));
break;
default:
res = 0;
break;
}
}
#if SEXP_USE_HUFF_SYMS
} else if (sexp_lsymbolp(a) && sexp_isymbolp(b)) {
res = strcmp(sexp_symbol_data(a),
sexp_string_data(sexp_write_to_string(ctx, b)));
#endif
} else {
res = 1;
}
} else if (sexp_pointerp(b)) {
#if SEXP_USE_HUFF_SYMS
if (sexp_isymbolp(a) && sexp_lsymbolp(b))
res = strcmp(sexp_string_data(sexp_write_to_string(ctx, a)),
sexp_symbol_data(b));
else
#endif
res = -1;
} else {
#if SEXP_USE_HUFF_SYMS
if (sexp_isymbolp(a) && sexp_isymbolp(b))
return sexp_isymbol_compare(ctx, a, b);
else
#endif
res = (sexp_sint_t)a - (sexp_sint_t)b;
}
return res;
}
static sexp sexp_set_time_of_day_x_stub (sexp ctx, sexp self, sexp_sint_t n, sexp arg0, sexp arg1) {
int err;
sexp res;
if (! (sexp_pointerp(arg0) && (sexp_pointer_tag(arg0) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), arg0);
if (! ((sexp_pointerp(arg1) && (sexp_pointer_tag(arg1) == sexp_unbox_fixnum(sexp_opcode_arg2_type(self)))) || sexp_not(arg1)))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg2_type(self)), arg1);
err = settimeofday((struct timeval*)sexp_cpointer_value(arg0), (struct timezone*)sexp_cpointer_maybe_null_value(arg1));
if (err) {
res = SEXP_FALSE;
} else {
res = SEXP_TRUE;
}
return res;
}
static int usedp (sexp lambda, sexp var, sexp x) {
sexp ls;
loop:
switch (sexp_pointerp(x) ? sexp_pointer_tag(x) : 0) {
case SEXP_REF:
return sexp_ref_name(x) == var && sexp_ref_loc(x) == lambda;
case SEXP_SET:
x = sexp_set_value(x);
goto loop;
case SEXP_LAMBDA:
x = sexp_lambda_body(x);
goto loop;
case SEXP_CND:
if (usedp(lambda, var, sexp_cnd_test(x))
|| usedp(lambda, var, sexp_cnd_pass(x)))
return 1;
x = sexp_cnd_fail(x);
goto loop;
case SEXP_SEQ:
x = sexp_seq_ls(x);
case SEXP_PAIR:
for (ls=x; sexp_pairp(ls); ls=sexp_cdr(ls))
if (usedp(lambda, var, sexp_car(ls)))
return 1;
}
return 0;
}
static sexp sexp_time_3e_seconds_stub (sexp ctx, sexp self, sexp_sint_t n, sexp arg0) {
sexp res;
if (! (sexp_pointerp(arg0) && (sexp_pointer_tag(arg0) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), arg0);
res = sexp_make_integer(ctx, sexp_shift_epoch(mktime((struct tm*)sexp_cpointer_value(arg0))));
return res;
}
static sexp sexp_player_delete_stub (sexp ctx, sexp self, sexp_sint_t n, sexp arg0) {
sexp res;
if (! (sexp_pointerp(arg0) && (sexp_pointer_tag(arg0) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), arg0);
res = ((player_delete((struct player**)sexp_cpointer_value(arg0))), SEXP_VOID);
return res;
}
static sexp sexp_readdir_stub (sexp ctx, sexp self, sexp_sint_t n, sexp arg0) {
sexp res;
if (! (sexp_pointerp(arg0) && (sexp_pointer_tag(arg0) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), arg0);
res = sexp_make_cpointer(ctx, sexp_unbox_fixnum(sexp_opcode_return_type(self)), readdir((DIR*)sexp_cpointer_value(arg0)), arg0, 0);
return res;
}
static void sexp_print_simple (sexp ctx, sexp x, sexp out, int depth) {
int i;
if ((!sexp_pointerp(x)) || sexp_symbolp(x) || sexp_stringp(x)
|| sexp_flonump(x) || sexp_bignump(x)) {
sexp_write(ctx, x, out);
} else if (depth <= 0) {
goto print_name;
} else if (sexp_synclop(x)) {
sexp_write_string(ctx, "#<sc ", out);
sexp_print_simple(ctx, sexp_synclo_expr(x), out, depth);
sexp_write_string(ctx, ">", out);
} else if (sexp_pairp(x)) {
sexp_write_char(ctx, '(', out);
sexp_print_simple(ctx, sexp_car(x), out, depth-1);
sexp_write_string(ctx, " . ", out);
sexp_print_simple(ctx, sexp_cdr(x), out, depth-1);
sexp_write_char(ctx, ')', out);
} else if (sexp_vectorp(x)) {
sexp_write_string(ctx, "#(", out);
for (i=0; i<SEXP_HEAP_VECTOR_DEPTH && i<(int)sexp_vector_length(x); i++) {
if (i>0)
sexp_write_char(ctx, ' ', out);
sexp_print_simple(ctx, sexp_vector_ref(x, i), out, depth-1);
}
if (i<(int)sexp_vector_length(x))
sexp_write_string(ctx, " ...", out);
sexp_write_char(ctx, ')', out);
} else {
print_name:
sexp_write_string(ctx, "#<", out);
sexp_write(ctx, sexp_object_type_name(ctx, x), out);
sexp_write_string(ctx, ">", out);
}
}
static sexp sexp_integer_to_immediate (sexp ctx, sexp self, sexp_sint_t n, sexp i, sexp dflt) {
sexp x = (sexp)sexp_unbox_fixnum(i);
sexp_assert_type(ctx, sexp_fixnump, SEXP_FIXNUM, i);
if (sexp_pointerp(x))
return dflt;
return x;
}
static sexp sexp_object_size (sexp ctx, sexp self, sexp_sint_t n, sexp x) {
sexp t;
if ((! sexp_pointerp(x)) || (sexp_pointer_tag(x) >= sexp_context_num_types(ctx)))
return SEXP_ZERO;
t = sexp_object_type(ctx, x);
return sexp_make_fixnum(sexp_type_size_of_object(t, x));
}
static sexp sexp_player_move_stub (sexp ctx, sexp self, sexp_sint_t n, sexp arg0, sexp arg1, sexp arg2) {
sexp res;
if (! (sexp_pointerp(arg0) && (sexp_pointer_tag(arg0) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), arg0);
if (! sexp_exact_integerp(arg1))
return sexp_type_exception(ctx, self, SEXP_FIXNUM, arg1);
if (! sexp_exact_integerp(arg2))
return sexp_type_exception(ctx, self, SEXP_FIXNUM, arg2);
res = ((player_move((struct player**)sexp_cpointer_value(arg0), sexp_uint_value(arg1), sexp_uint_value(arg2))), SEXP_VOID);
return res;
}
sexp_uint_t sexp_allocated_bytes (sexp ctx, sexp x) {
sexp_uint_t res;
sexp t;
if (!sexp_pointerp(x) || (sexp_pointer_tag(x) >= sexp_context_num_types(ctx)))
return sexp_heap_align(1);
t = sexp_object_type(ctx, x);
res = sexp_type_size_of_object(t, x) + SEXP_GC_PAD;
#if SEXP_USE_DEBUG_GC
if (res == 0) {
fprintf(stderr, SEXP_BANNER("%p zero-size object: %p"), ctx, x);
return 1;
}
#endif
return res;
}
static sexp sexp_last_context (sexp ctx, sexp *cstack) {
sexp res=SEXP_FALSE;
#if ! SEXP_USE_BOEHM
sexp p;
sexp_sint_t i;
sexp_heap h = sexp_context_heap(ctx);
for (i=0; i<SEXP_LAST_CONTEXT_CHECK_LIMIT; i++) {
p = cstack[i];
if (p && (p != ctx) && sexp_pointerp(p) && in_heap_p(h, p)
&& (sexp_pointer_tag(p) == SEXP_CONTEXT)
&& (sexp_context_heap(p) == h)) {
res = p;
break;
}
}
#endif
return res;
}
static sexp sexp_time_3e_string_stub (sexp ctx, sexp self, sexp_sint_t n, sexp arg0) {
char *err;
char tmp1[64];
sexp res;
sexp_gc_var1(res1);
if (! (sexp_pointerp(arg0) && (sexp_pointer_tag(arg0) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), arg0);
sexp_gc_preserve1(ctx, res1);
err = asctime_r((struct tm*)sexp_cpointer_value(arg0), tmp1);
if (!err) {
res = SEXP_FALSE;
} else {
res1 = sexp_c_string(ctx, tmp1, -1);
res = res1;
}
sexp_gc_release1(ctx);
return res;
}
static sexp sexp_type_of (sexp ctx, sexp self, sexp_sint_t n, sexp x) {
if (sexp_pointerp(x))
return sexp_object_type(ctx, x);
else if (sexp_fixnump(x))
return sexp_type_by_index(ctx, SEXP_FIXNUM);
else if (sexp_booleanp(x))
return sexp_type_by_index(ctx, SEXP_BOOLEAN);
else if (sexp_charp(x))
return sexp_type_by_index(ctx, SEXP_CHAR);
#if SEXP_USE_HUFF_SYMS
else if (sexp_symbolp(x))
return sexp_type_by_index(ctx, SEXP_SYMBOL);
#endif
#if SEXP_USE_IMMEDIATE_FLONUMS
else if (sexp_flonump(x))
return sexp_type_by_index(ctx, SEXP_FLONUM);
#endif
else
return sexp_type_by_index(ctx, SEXP_OBJECT);
}
static sexp simplify (sexp ctx, sexp ast, sexp init_substs, sexp lambda) {
int check;
sexp ls1, ls2, p1, p2, sv;
sexp_gc_var5(res, substs, tmp, app, ctx2);
sexp_gc_preserve5(ctx, res, substs, tmp, app, ctx2);
res = ast; /* return the ast as-is by default */
substs = init_substs;
loop:
switch (sexp_pointerp(res) ? sexp_pointer_tag(res) : 0) {
case SEXP_PAIR:
/* don't simplify the operator if it's a lambda because we
simplify that as a special case below, with the appropriate
substs list */
app = sexp_list1(ctx, sexp_lambdap(sexp_car(res)) ? sexp_car(res)
: (tmp=simplify(ctx, sexp_car(res), substs, lambda)));
sexp_pair_source(app) = sexp_pair_source(res);
for (ls1=sexp_cdr(res); sexp_pairp(ls1); ls1=sexp_cdr(ls1)) {
sexp_push(ctx, app, tmp=simplify(ctx, sexp_car(ls1), substs, lambda));
if (sexp_pairp(app)) sexp_pair_source(app) = sexp_pair_source(ls1);
}
app = sexp_nreverse(ctx, app);
/* app now holds a copy of the list, and is the default result
(res = app below) if we don't replace it with a simplification */
if (sexp_opcodep(sexp_car(app))) {
/* opcode app - right now we just constant fold arithmetic */
if (sexp_opcode_class(sexp_car(app)) == SEXP_OPC_ARITHMETIC) {
for (check=1, ls1=sexp_cdr(app); sexp_pairp(ls1); ls1=sexp_cdr(ls1)) {
if (sexp_pointerp(sexp_car(ls1)) && ! sexp_litp(sexp_car(ls1))) {
check = 0;
break;
}
}
if (check) {
ctx2 = sexp_make_eval_context(ctx, NULL, sexp_context_env(ctx), 0, 0);
sexp_generate(ctx2, 0, 0, 0, app);
res = sexp_complete_bytecode(ctx2);
if (! sexp_exceptionp(res)) {
tmp = sexp_make_vector(ctx2, 0, SEXP_VOID);
tmp = sexp_make_procedure(ctx2, SEXP_ZERO, SEXP_ZERO, res, tmp);
if (! sexp_exceptionp(tmp)) {
tmp = sexp_apply(ctx2, tmp, SEXP_NULL);
if (! sexp_exceptionp(tmp))
app = sexp_make_lit(ctx2, tmp);
}
}
}
}
} else if (lambda && sexp_lambdap(sexp_car(app))) { /* let */
p1 = NULL;
p2 = sexp_lambda_params(sexp_car(app));
ls1 = app;
ls2 = sexp_cdr(app);
sv = sexp_lambda_sv(sexp_car(app));
if (sexp_length(ctx, p2) == sexp_length(ctx, ls2)) {
for ( ; sexp_pairp(ls2); ls2=sexp_cdr(ls2), p2=sexp_cdr(p2)) {
if (sexp_not(sexp_memq(ctx, sexp_car(p2), sv))
&& (! sexp_pointerp(sexp_car(ls2)) || sexp_litp(sexp_car(ls2))
|| (sexp_refp(sexp_car(ls2))
&& sexp_lambdap(sexp_ref_loc(sexp_car(ls2)))
&& sexp_not(sexp_memq(ctx, sexp_ref_name(sexp_car(ls2)),
sexp_lambda_sv(sexp_ref_loc(sexp_car(ls2)))))))) {
tmp = sexp_cons(ctx, sexp_car(app), sexp_car(ls2));
tmp = sexp_cons(ctx, sexp_car(p2), tmp);
sexp_push(ctx, substs, tmp);
sexp_cdr(ls1) = sexp_cdr(ls2);
if (p1)
sexp_cdr(p1) = sexp_cdr(p2);
else
sexp_lambda_params(sexp_car(app)) = sexp_cdr(p2);
} else {
p1 = p2;
ls1 = ls2;
}
}
sexp_lambda_body(sexp_car(app))
= simplify(ctx, sexp_lambda_body(sexp_car(app)), substs, sexp_car(app));
if (sexp_nullp(sexp_cdr(app))
&& sexp_nullp(sexp_lambda_params(sexp_car(app)))
&& sexp_nullp(sexp_lambda_defs(sexp_car(app))))
app = sexp_lambda_body(sexp_car(app));
}
}
res = app;
break;
case SEXP_LAMBDA:
sexp_lambda_body(res) = simplify(ctx, sexp_lambda_body(res), substs, res);
break;
case SEXP_CND:
tmp = simplify(ctx, sexp_cnd_test(res), substs, lambda);
if (sexp_litp(tmp) || ! sexp_pointerp(tmp)) {
res = sexp_not((sexp_litp(tmp) ? sexp_lit_value(tmp) : tmp))
? sexp_cnd_fail(res) : sexp_cnd_pass(res);
goto loop;
} else {
sexp_cnd_test(res) = tmp;
simplify_it(sexp_cnd_pass(res));
simplify_it(sexp_cnd_fail(res));
}
break;
case SEXP_REF:
tmp = sexp_ref_name(res);
for (ls1=substs; sexp_pairp(ls1); ls1=sexp_cdr(ls1))
if ((sexp_caar(ls1) == tmp) && (sexp_cadar(ls1) == sexp_ref_loc(res))) {
res = sexp_cddar(ls1);
break;
}
break;
case SEXP_SET:
simplify_it(sexp_set_value(res));
break;
case SEXP_SEQ:
app = SEXP_NULL;
for (ls2=sexp_seq_ls(res); sexp_pairp(ls2); ls2=sexp_cdr(ls2)) {
tmp = simplify(ctx, sexp_car(ls2), substs, lambda);
if (! (sexp_pairp(sexp_cdr(ls2))
&& (sexp_litp(tmp) || ! sexp_pointerp(tmp) || sexp_refp(tmp)
|| sexp_lambdap(tmp))))
sexp_push(ctx, app, tmp);
}
if (sexp_pairp(app) && sexp_nullp(sexp_cdr(app)))
res = sexp_car(app);
else
sexp_seq_ls(res) = sexp_nreverse(ctx, app);
break;
}
sexp_gc_release5(ctx);
return res;
}
static sexp sexp_stat_get_st_blocks (sexp ctx, sexp self, sexp_sint_t n, sexp x) {
if (! (sexp_pointerp(x) && (sexp_pointer_tag(x) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), x);
return sexp_make_unsigned_integer(ctx, ((struct stat*)sexp_cpointer_value(x))->st_blocks);
}
static sexp sexp_dirent_get_d_name (sexp ctx, sexp self, sexp_sint_t n, sexp x) {
if (! (sexp_pointerp(x) && (sexp_pointer_tag(x) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), x);
return sexp_c_string(ctx, ((struct dirent*)sexp_cpointer_value(x))->d_name, -1);
}
static sexp sexp_tm_get_tm_gmtoff (sexp ctx, sexp self, sexp_sint_t n, sexp x) {
if (! (sexp_pointerp(x) && (sexp_pointer_tag(x) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), x);
return sexp_make_integer(ctx, ((struct tm*)sexp_cpointer_value(x))->tm_gmtoff);
}
static sexp sexp_timeval_get_tv_sec (sexp ctx, sexp self, sexp_sint_t n, sexp x) {
if (! (sexp_pointerp(x) && (sexp_pointer_tag(x) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), x);
return sexp_make_integer(ctx, sexp_shift_epoch(((struct timeval*)sexp_cpointer_value(x))->tv_sec));
}
static sexp sexp_timezone_get_tz_minuteswest (sexp ctx, sexp self, sexp_sint_t n, sexp x) {
if (! (sexp_pointerp(x) && (sexp_pointer_tag(x) == sexp_unbox_fixnum(sexp_opcode_arg1_type(self)))))
return sexp_type_exception(ctx, self, sexp_unbox_fixnum(sexp_opcode_arg1_type(self)), x);
return sexp_make_integer(ctx, ((struct timezone*)sexp_cpointer_value(x))->tz_minuteswest);
}
