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eval.c
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/*
$Id: eval.c 3122 2023-09-16 10:44:56Z soci $
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 of the License, 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 program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "eval.h"
#include <string.h>
#include "math.h"
#include "section.h"
#include "variables.h"
#include "64tass.h"
#include "unicode.h"
#include "error.h"
#include "values.h"
#include "arguments.h"
#include "optimizer.h"
#include "unicodedata.h"
#include "floatobj.h"
#include "boolobj.h"
#include "intobj.h"
#include "bitsobj.h"
#include "strobj.h"
#include "codeobj.h"
#include "bytesobj.h"
#include "addressobj.h"
#include "listobj.h"
#include "dictobj.h"
#include "registerobj.h"
#include "namespaceobj.h"
#include "operobj.h"
#include "gapobj.h"
#include "typeobj.h"
#include "noneobj.h"
#include "labelobj.h"
#include "errorobj.h"
#include "symbolobj.h"
#include "anonsymbolobj.h"
#include "foldobj.h"
#include "memblocksobj.h"
#include "functionobj.h"
static FAST_CALL NO_INLINE unsigned int get_label_start(const uint8_t *s) {
unsigned int l;
unichar_t ch;
if (!arguments.to_ascii) return 0;
l = utf8in(s, &ch);
return ((uget_property(ch)->property & id_Start) != 0) ? l : 0;
}
static FAST_CALL NO_INLINE unsigned int get_label_continue(const uint8_t *s) {
unsigned int l;
unichar_t ch;
if (!arguments.to_ascii) return 0;
l = utf8in(s, &ch);
return ((uget_property(ch)->property & (id_Continue | id_Start)) != 0) ? l : 0;
}
FAST_CALL size_t get_label(const uint8_t *s) {
const uint8_t *i;
if likely(((uint8_t)((*s | 0x20) - 'a')) <= 'z' - 'a' || *s == '_') {
i = s + 1;
} else {
unsigned int l;
if (*s < 0x80) return 0;
l = get_label_start(s);
if (l == 0) return 0;
i = s + l;
}
for (;;) {
unsigned int l;
if likely(((uint8_t)((*i | 0x20) - 'a')) <= 'z' - 'a' || (*i ^ 0x30) < 10 || *i == '_') {
i++;
continue;
}
if (*i < 0x80) return (size_t)(i - s);
l = get_label_continue(i);
if (l == 0) return (size_t)(i - s);
i += l;
}
}
FAST_CALL size_t get_label2(const uint8_t *s, const uint8_t *e) {
const uint8_t *i;
if (s >= e) return 0;
if likely(((uint8_t)((*s | 0x20) - 'a')) <= 'z' - 'a' || *s == '_') {
i = s + 1;
} else {
unsigned int l;
if (*s < 0x80) return 0;
l = get_label_start(s);
if (l == 0) return 0;
i = s + l;
}
while (i < e) {
unsigned int l;
if likely(((uint8_t)((*i | 0x20) - 'a')) <= 'z' - 'a' || (*i ^ 0x30) < 10 || *i == '_') {
i++;
continue;
}
if (*i < 0x80) return (size_t)(i - s);
l = get_label_continue(i);
if (l == 0) return (size_t)(i - s);
i += l;
}
return (size_t)(i - s);
}
static MUST_CHECK Obj *get_dec(linepos_t epoint) {
linecpos_t len, len2;
Obj *v = int_from_decstr(pline + lpoint.pos, &len, &len2);
lpoint.pos += len;
return (v != NULL) ? v : new_error_mem(epoint);
}
static double ldexp10(double d, unsigned int expo, bool neg) {
static const double nums[10] = {1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9};
double scal;
if (expo < lenof(nums)) {
scal = nums[expo];
} else {
#ifdef __APPLE__
scal = pow(10.0+d*0.0, (double)expo);
#else
scal = pow(10.0, (double)expo);
#endif
}
return neg ? d / scal : d * scal;
}
static MUST_CHECK Obj *get_exponent(Obj *v1, Obj *v2, size_t len, linepos_t epoint) {
Obj *v;
double real;
uval_t expo = 0;
bool neg = false;
uint8_t base = here() | 0x20;
if (base == 'p' || base == 'e') {
neg = (pline[lpoint.pos + 1] == '-');
if (neg || pline[lpoint.pos + 1] == '+') {
if ((pline[lpoint.pos + 2] ^ 0x30) < 10) lpoint.pos++;
}
if ((pline[lpoint.pos + 1] ^ 0x30) < 10) {
Error *err;
linecpos_t len1, len2;
lpoint.pos++;
v = int_from_decstr(pline + lpoint.pos, &len1, &len2);
if (v == NULL) {
err = Error(new_error_mem(epoint));
} else {
err = v->obj->uval(v, &expo, 8 * (sizeof expo < sizeof(int) ? sizeof expo : sizeof(int)) - 1, &lpoint);
val_destroy(v);
}
lpoint.pos += len1;
if (err != NULL) {
if (v2 != NULL) val_destroy(v2);
val_destroy(v1);
return Obj(err);
}
}
}
if (v2 == NULL) {
real = 0.0;
} else {
bool bits = v2->obj == BITS_OBJ;
if (bits) {
len = Bits(v2)->bits;
}
v = float_from_obj(v2, epoint);
val_destroy(v2);
if (v->obj != FLOAT_OBJ) {
val_destroy(v1);
return v;
}
real = Float(v)->real;
if (len != 0 && real != 0.0) real = bits ? ldexp(real, -(int)len) : ldexp10(real, len <= ~(unsigned int)0 ? (unsigned int)len : ~(unsigned int)0, true);
val_destroy(v);
}
v = float_from_obj(v1, epoint);
val_destroy(v1);
if (v->obj != FLOAT_OBJ) {
return v;
}
real += Float(v)->real;
if (expo != 0) {
real = (base == 'p') ? ldexp(real, neg ? -(ival_t)expo : (ival_t)expo) : ldexp10(real, expo, neg);
}
if (real == HUGE_VAL || real == -HUGE_VAL || real != real) {
val_destroy(v);
return Obj(new_error(ERROR_NUMERIC_OVERF, epoint));
}
if (v->refcount == 1) {
Float(v)->real = real;
return v;
}
val_destroy(v);
return new_float(real);
}
static MUST_CHECK Obj *get_exponent2(Obj *v, linepos_t epoint) {
if (pline[lpoint.pos + 1] == '-' || pline[lpoint.pos + 1] == '+') {
if ((pline[lpoint.pos + 2] ^ 0x30) < 10) {
return get_exponent(v, NULL, 0, epoint);
}
} else if ((pline[lpoint.pos + 1] ^ 0x30) < 10) {
return get_exponent(v, NULL, 0, epoint);
}
return v;
}
static MUST_CHECK Obj *get_hex(linepos_t epoint) {
linecpos_t len;
Obj *v = bits_from_hexstr(pline + lpoint.pos + 1, &len);
if (v == NULL) v = new_error_mem(epoint);
lpoint.pos += len + 1;
if (here() == '.' && pline[lpoint.pos + 1] != '.') {
Obj *v2 = bits_from_hexstr(pline + lpoint.pos + 1, &len);
lpoint.pos += len + 1;
return get_exponent(v, (v2 != NULL) ? v2 : new_error_mem(epoint), 0, epoint);
}
return (here() | 0x20) == 'p' ? get_exponent2(v, epoint) : v;
}
static MUST_CHECK Obj *get_hex_compat(linepos_t epoint) {
linecpos_t len;
Obj *v = bits_from_hexstr(pline + lpoint.pos + 1, &len);
lpoint.pos += len + 1;
return (v != NULL) ? v : new_error_mem(epoint);
}
static MUST_CHECK Obj *get_bin(linepos_t epoint) {
linecpos_t len;
Obj *v = bits_from_binstr(pline + lpoint.pos + 1, &len);
if (v == NULL) v = new_error_mem(epoint);
lpoint.pos += len + 1;
if (here() == '.' && pline[lpoint.pos + 1] != '.') {
Obj *v2 = bits_from_binstr(pline + lpoint.pos + 1, &len);
lpoint.pos += len + 1;
return get_exponent(v, (v2 != NULL) ? v2 : new_error_mem(epoint), 0, epoint);
}
switch (here() | 0x20) {
case 'e':
case 'p':
return get_exponent2(v, epoint);
default:
return v;
}
}
static MUST_CHECK Obj *get_bin_compat(linepos_t epoint) {
linecpos_t len;
Obj *v = bits_from_binstr(pline + lpoint.pos + 1, &len);
lpoint.pos += len + 1;
return (v != NULL) ? v : new_error_mem(epoint);
}
static MUST_CHECK Obj *get_float(linepos_t epoint) {
linecpos_t len, len2;
Obj *v = int_from_decstr(pline + lpoint.pos, &len, &len2);
if (v == NULL) v = new_error_mem(epoint);
lpoint.pos += len;
if (here() == '.' && pline[lpoint.pos + 1] != '.') {
Obj *v2 = int_from_decstr(pline + lpoint.pos + 1, &len, &len2);
lpoint.pos += len + 1;
return get_exponent(v, (v2 != NULL) ? v2 : new_error_mem(epoint), len2, epoint);
}
switch (here() | 0x20) {
case 'e':
case 'p':
return get_exponent2(v, epoint);
default:
return v;
}
}
static MUST_CHECK Obj *get_bytes(linepos_t epoint, bool z85) {
char txt[4];
linecpos_t len;
Obj *v;
if (z85) {
v = bytes_from_z85str(pline + lpoint.pos, &len, epoint);
} else {
v = bytes_from_hexstr(pline + lpoint.pos, &len, epoint);
}
if (v->obj == BYTES_OBJ) {
lpoint.pos += len;
return v;
}
txt[1] = (char)here();
txt[2] = txt[0] = txt[1] ^ ('\'' ^ '"');
txt[3] = 0;
lpoint.pos += len;
if (pline[lpoint.pos - 1] != txt[1] || len == 1) err_msg2(ERROR______EXPECTED, txt, &lpoint);
return v;
}
static MUST_CHECK Obj *get_string(linepos_t epoint) {
char txt[4];
linecpos_t len;
Obj *v = str_from_str(pline + lpoint.pos, &len, epoint);
if (v->obj == STR_OBJ) {
lpoint.pos += len;
return v;
}
txt[1] = (char)here();
txt[2] = txt[0] = txt[1] ^ ('\'' ^ '"');
txt[3] = 0;
lpoint.pos += len;
err_msg2(ERROR______EXPECTED, txt, &lpoint);
return v;
}
void touch_label(Label *tmp) {
if (referenceit) tmp->ref = true;
tmp->usepass = pass;
}
static uval_t bitscalc(address_t addr, Bits *val) {
size_t b = val->bits;
if (b >= 8 * sizeof(addr)) return (uval_t)b;
if ((addr >> b) == 0) return (uval_t)b;
if (addr <= 0xff) return 8;
if (addr <= 0xffff) return 16;
return all_mem_bits;
}
static uval_t bytescalc(address_t addr, Bytes *val) {
size_t b = val->len < 0 ? (size_t)~val->len : (size_t)val->len;
if (b >= 8 * sizeof(addr)) return (uval_t)b;
if ((addr >> (b << 3)) == 0) return (uval_t)b;
if (addr <= 0xff) return 1;
if (addr <= 0xffff) return 2;
return all_mem_bits >> 3;
}
MUST_CHECK Obj *get_star_value(address_t addr, Obj *val) {
switch (val->obj->type) {
case T_BITS: return bits_from_uval(addr, bitscalc(addr, Bits(val)));
case T_CODE: return get_star_value(addr, Code(val)->typ);
default:
case T_BOOL:
case T_INT: return int_from_uval(addr);
case T_FLOAT: return new_float(addr + (Float(val)->real - trunc(Float(val)->real)));
case T_STR: return bytes_from_uval(addr, all_mem_bits >> 3);
case T_BYTES: return bytes_from_uval(addr, bytescalc(addr, Bytes(val)));
case T_ADDRESS: return new_address(get_star_value(addr, Address(val)->val), Address(val)->type);
}
}
MUST_CHECK Obj *get_star(void) {
Code *code;
if (diagnostics.optimize) cpu_opt_invalidate();
code = new_code();
code->addr = star;
code->typ = val_reference(current_address->l_address_val);
code->size = 0;
code->offs = 0;
code->dtype = D_NONE;
code->pass = pass;
code->apass = pass;
code->memblocks = ref_memblocks(current_address->mem);
code->names = ref_namespace(current_context);
code->requires = current_section->requires;
code->conflicts = current_section->conflicts;
code->memaddr = current_address->address;
code->membp = 0;
return Obj(code);
}
static MUST_CHECK Obj *new_starsymbol(linecpos_t pos) {
static const str_t symbol = { (const uint8_t *)"*", 1 };
struct linepos_s epoint;
epoint.line = lpoint.line;
epoint.pos = pos;
return new_symbol(&symbol, &epoint);
}
static MUST_CHECK Obj *resolv_anonlabel(ssize_t as, linecpos_t pos) {
Error *err;
struct linepos_s epoint;
Label *l = find_anonlabel(as);
if (l != NULL) {
touch_label(l);
return val_reference(l->value);
}
if (constcreated && pass < max_pass) {
return ref_none();
}
epoint.line = lpoint.line;
epoint.pos = pos;
err = new_error(ERROR___NOT_DEFINED, &epoint);
err->u.notdef.symbol = new_anonsymbol(as);
err->u.notdef.names = ref_namespace(current_context);
err->u.notdef.down = true;
return Obj(err);
}
struct opr_s {
Oper_types op;
linecpos_t pos;
};
struct opr_list_s {
struct opr_s *data, *p, *max;
};
struct out_s {
Obj *val;
linecpos_t pos;
};
struct out_list_s {
struct out_s *data, *p, *max;
};
static size_t evxnum, evx_p;
static struct eval_context_s {
struct values_s *values;
argcount_t values_len;
argcount_t values_p;
argcount_t values_size;
int gstop;
struct {
struct out_s *data, *max;
const struct out_s *end, *p;
} out;
struct {
struct opr_s *data, *max;
} opr;
} **evx;
static struct eval_context_s *eval;
static NO_INLINE void extend_out(struct out_list_s *out) {
argcount_t size = (argcount_t)(out->max - out->data);
argcount_t p = (argcount_t)(out->p - out->data);
extend_array(&out->data, &size, 64);
out->max = out->data + size;
out->p = out->data + p;
}
static NO_INLINE void extend_opr(struct opr_list_s *opr) {
argcount_t size = (argcount_t)(opr->max - opr->data);
argcount_t p = (argcount_t)(opr->p - opr->data);
extend_array(&opr->data, &size, 64);
opr->max = opr->data + size;
opr->p = opr->data + p;
}
static inline void clean_out(struct eval_context_s *ev) {
const struct out_s *i;
for (i = ev->out.p; i != ev->out.end; i++) val_destroy(i->val);
}
static bool get_exp_compat(int stop) {/* length in bytes, defined */
uint8_t ch;
Oper_types conv;
struct linepos_s epoint;
linecpos_t cpoint = 0, cpoint2 = 0;
linecpos_t llen;
bool first;
str_t symbol;
Label *l;
struct out_list_s out;
struct opr_list_s opr;
out.p = out.data = eval->out.data;
out.max = eval->out.max;
opr.p = opr.data = eval->opr.data;
opr.max = eval->opr.max;
rest:
ignore();
conv = O_NONE;
first = (here() == '(') && (stop == 3 || stop == 4);
if (out.p == out.data && here() == '#') {
cpoint2 = lpoint.pos; lpoint.pos++;
}
switch (here()) {
case 0:
case ';':
eval->opr.data = opr.data;
eval->opr.max = opr.max;
eval->out.data = out.data;
eval->out.p = out.data;
eval->out.max = out.max;
eval->out.end = out.p;
return true;
case '<': conv = O_LOWER; cpoint = lpoint.pos; lpoint.pos++;break;
case '>': conv = O_HIGHER; cpoint = lpoint.pos; lpoint.pos++;break;
}
epoint.line = lpoint.line;
for (;;) {
Oper_types op;
Obj *val;
ignore();ch = here(); epoint.pos = lpoint.pos;
switch (ch) {
case '(': op = O_PARENT;goto add;
case '$': val = get_hex_compat(&epoint); goto push_other;
case '%': val = get_bin_compat(&epoint); goto push_other;
case '"': val = get_string(&epoint); goto push_other;
case '*': lpoint.pos++;val = get_star(); goto push_other;
case '0':
if (diagnostics.leading_zeros && pline[lpoint.pos + 1] >= '0' && pline[lpoint.pos + 1] <= '9') err_msg2(ERROR_LEADING_ZEROS, NULL, &lpoint);
FALL_THROUGH; /* fall through */
case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
val = get_dec(&epoint); goto push_other;
default:
llen = (linecpos_t)get_label(pline + lpoint.pos);
if (llen == 0) {
if (opr.p != opr.data) epoint.pos = opr.p[-1].pos;
if ((ch < ' ' && ch != 0) || ch > '~') err_msg_wrong_character(&lpoint);
else err_msg2(ERROR______EXPECTED, "an expression is", &lpoint);
goto error;
}
lpoint.pos += llen;
break;
}
as_symbol:
symbol.data = pline + epoint.pos;
symbol.len = lpoint.pos - epoint.pos;
l = find_label(&symbol, NULL);
if (l != NULL) {
if (diagnostics.case_symbol && str_cmp(&symbol, &l->name) != 0) err_msg_symbol_case(&symbol, l, &epoint);
touch_label(l);
val = val_reference(l->value);
} else if (constcreated && pass < max_pass) {
val = ref_none();
} else {
Error *err = new_error(ERROR___NOT_DEFINED, &epoint);
err->u.notdef.symbol = new_symbol(&symbol, &epoint);
err->u.notdef.names = ref_namespace(current_context);
err->u.notdef.down = true;
val = Obj(err);
}
push_other:
out.p->val = val;
out.p->pos = epoint.pos;
if (++out.p == out.max) extend_out(&out);
other:
if (stop != 2) ignore();
ch = here(); epoint.pos = lpoint.pos;
while (opr.p != opr.data) {
if (opr.p[-1].op == O_PARENT) break;
opr.p--;
out.p->val = &operators[opr.p->op].v;
out.p->pos = opr.p->pos;
if (++out.p == out.max) extend_out(&out);
}
switch (ch) {
case ',':
lpoint.pos++;
llen = (linecpos_t)get_label(pline + lpoint.pos);
lpoint.pos += llen;
if (llen == 1) {
switch (pline[epoint.pos + 1] | arguments.caseinsensitive) {
case 'x':
opr.p->op = O_COMMAX;
opr.p->pos = epoint.pos;
if (++opr.p == opr.max) extend_opr(&opr);
goto other;
case 'y':
opr.p->op = O_COMMAY;
opr.p->pos = epoint.pos;
if (++opr.p == opr.max) extend_opr(&opr);
goto other;
default: break;
}
}
if (conv != O_NONE) {
out.p->val = &operators[conv].v;
out.p->pos = cpoint;
if (++out.p == out.max) extend_out(&out);
}
if (cpoint2 != 0) {
out.p->val = &operators[O_HASH].v;
out.p->pos = cpoint2;
if (++out.p == out.max) extend_out(&out);
}
if (stop == 1) {lpoint.pos = epoint.pos;break;}
if (llen != 0) {
epoint.pos++;
goto as_symbol;
}
goto rest;
case '&': op = O_AND; goto add;
case '.': op = O_OR; goto add;
case '(': /* yes, this is accepted by the original */
case ':': op = O_XOR; goto add;
case '*': op = O_MUL; goto add;
case '/': op = O_DIV; goto add;
case '+': op = O_ADD; goto add;
case '-': op = O_SUB;
add:
lpoint.pos++;
opr.p->op = op;
opr.p->pos = epoint.pos;
if (++opr.p == opr.max) extend_opr(&opr);
continue;
case ')':
if (opr.p == opr.data) {err_msg2(ERROR______EXPECTED, "')' not", &lpoint); goto error;}
lpoint.pos++;
opr.p--;
if (opr.p == opr.data && first) {
opr.p->op = O_TUPLE;
opr.p->pos = epoint.pos;
opr.p++;
first = false;
}
goto other;
case 0:
case ';':
case '\t':
case ' ':
if (conv != O_NONE) {
out.p->val = &operators[conv].v;
out.p->pos = cpoint;
if (++out.p == out.max) extend_out(&out);
}
if (cpoint2 != 0) {
out.p->val = &operators[O_HASH].v;
out.p->pos = cpoint2;
if (++out.p == out.max) extend_out(&out);
}
break;
default:
if (ch < ' ' || ch > '~') err_msg_wrong_character(&epoint);
else err_msg2(ERROR______EXPECTED, "an operator is", &epoint);
goto error;
}
if (opr.p == opr.data) {
eval->opr.data = opr.data;
eval->opr.max = opr.max;
eval->out.data = out.data;
eval->out.p = out.data;
eval->out.max = out.max;
eval->out.end = out.p;
return true;
}
epoint.pos = opr.p[-1].pos;
err_msg2(ERROR______EXPECTED, "')'", &epoint);
error:
break;
}
eval->opr.data = opr.data;
eval->opr.max = opr.max;
eval->out.data = out.data;
eval->out.p = out.data;
eval->out.max = out.max;
eval->out.end = out.p;
return false;
}
static struct values_s *extend_values(struct eval_context_s *ev, size_t by) {
argcount_t j = ev->values_size;
ev->values_size += (argcount_t)by;
if (ev->values_size < by) err_msg_out_of_memory(); /* overflow */
resize_array(&ev->values, ev->values_size);
for (; j < ev->values_size; j++) ev->values[j].val = NULL;
return ev->values;
}
static bool get_val2_compat(struct eval_context_s *ev) {/* length in bytes, defined */
argcount_t vsp = 0;
Oper_types op;
const struct out_s *out;
Error *err;
struct values_s *values;
struct linepos_s epoint;
ev->values_p = 0;
values = ev->values;
epoint.line = lpoint.line;
for (out = ev->out.p; out != ev->out.end; out++) {
struct values_s *v;
Obj *val = out->val;
if (val->obj != OPER_OBJ) {
if (vsp >= ev->values_size) values = extend_values(ev, 16);
val = values[vsp].val;
if (val != NULL) val_destroy(val);
values[vsp].val = out->val;
values[vsp].epoint.pos = out->pos;
values[vsp++].epoint.line = epoint.line;
continue;
}
op = Oper(val)->op;
if (vsp < 1) goto syntaxe;
v = &values[vsp - 1];
switch (op) {
case O_LOWER:
case O_HIGHER:
case O_HASH:
case O_COMMAX:
case O_COMMAY:
case O_TUPLE:
switch (v[0].val->obj->type) {
case T_ADDRESS:
switch (op) {
case O_COMMAX:
case O_COMMAY:
case O_TUPLE:
{
const Address *old = Address(v[0].val);
Obj *val2 = new_address(val_reference(old->val), (old->type << 4) | ((op == O_TUPLE) ? A_I : (op == O_COMMAX) ? A_XR : A_YR));
val_destroy(v[0].val); v[0].val = val2;
v[0].epoint.pos = out->pos;
continue;
}
default:break;
}
epoint.pos = out->pos;
err = new_error(ERROR__INVALID_OPER, &epoint);
err->u.invoper.op = op;
err->u.invoper.v1 = v[0].val;
err->u.invoper.v2 = NULL;
v[0].val = Obj(err);
break;
default:
{
uint16_t val1;
uval_t uval;
err = v[0].val->obj->uval(v[0].val, &uval, 8 * sizeof uval, &v[0].epoint);
if (err != NULL) {
val_destroy(v[0].val);
v[0].val = Obj(err);
break;
}
val1 = (uint16_t)uval;
switch (op) {
case O_HASH:
case O_COMMAX:
case O_COMMAY:
v[0].val = new_address(v[0].val, (op == O_HASH) ? A_IMMEDIATE : (op == O_COMMAX) ? A_XR : A_YR);
v[0].epoint.pos = out->pos;
continue;
case O_HIGHER:
val1 = (uint8_t)(val1 >> 8);
break;
case O_LOWER:
val1 = (uint8_t)val1;
break;
case O_TUPLE:
v[0].val = new_address(v[0].val, A_I);
v[0].epoint.pos = out->pos;
continue;
default: break;
}
val_destroy(v[0].val);
v[0].val = int_from_uval(val1);
break;
}
case T_ERROR:
case T_NONE:break;
}
v[0].epoint.pos = out->pos;
continue;
default:break;
}
if (vsp < 2) {
syntaxe:
err_msg(ERROR_EXPRES_SYNTAX,NULL);
ev->out.p = out + 1;
ev->values_len = 0;
return false;
}
vsp--;
v--;
switch (v[0].val->obj->type) {
case T_INT:
case T_BITS:
case T_CODE:
case T_STR:
case T_ADDRESS:
switch (v[1].val->obj->type) {
case T_INT:
case T_BITS:
case T_CODE:
case T_STR:
case T_ADDRESS:
{
uint16_t val1, val2;
uval_t uval;
err = v[0].val->obj->uval(v[0].val, &uval, 8 * sizeof uval, &v[0].epoint);
if (err != NULL) {
val_destroy(v[0].val);
v[0].val = Obj(err);
continue;
}
val1 = (uint16_t)uval;
err = v[1].val->obj->uval(v[1].val, &uval, 8 * sizeof uval, &v[1].epoint);
if (err != NULL) {
val_destroy(v[0].val);
v[0].val = Obj(err);
continue;
}
val2 = (uint16_t)uval;
switch (op) {
case O_MUL: val1 = (uint16_t)(val1 * val2); break;
case O_DIV:
if (val2 == 0) {
epoint.pos = out->pos;
val_destroy(v[0].val); v[0].val = new_error_obj(ERROR_DIVISION_BY_Z, v[1].val, &epoint);
continue;
}
val1 /= val2; break;
case O_ADD: val1 = (uint16_t)(val1 + val2); break;
case O_SUB: val1 = (uint16_t)(val1 - val2); break;
case O_AND: val1 &= val2; break;
case O_OR: val1 |= val2; break;
case O_XOR: val1 ^= val2; break;
default: break;
}
val_destroy(v[0].val);
v[0].val = int_from_uval(val1);
continue;
}
default:
epoint.pos = out->pos;
break;
case T_ERROR:
case T_NONE:
val_replace(&v[0].val, v[1].val);
continue;
}
break;
default:
epoint.pos = out->pos;
break;
case T_ERROR:
case T_NONE: continue;
}
err = new_error(ERROR__INVALID_OPER, &epoint);
err->u.invoper.op = op;
err->u.invoper.v1 = v[0].val;
err->u.invoper.v2 = val_reference(v[1].val);
v[0].val = Obj(err);
}
ev->out.p = out;
ev->values_len = vsp;
return true;
}
static MUST_CHECK Obj *apply_addressing(Obj *o1, atype_t addrtype, bool inplace) {
if (o1->obj->iterable) {
struct iter_s iter;
size_t i;
List *v;
Obj **vals;
if (o1->refcount != 1) inplace = false;
iter.data = o1; o1->obj->getiter(&iter);
if (iter.len == 0) {
iter_destroy(&iter);
return val_reference(o1->obj == TUPLE_OBJ ? null_tuple : null_list);
}
v = List(val_alloc(o1->obj == TUPLE_OBJ ? TUPLE_OBJ : LIST_OBJ));
vals = list_create_elements(v, iter.len);
for (i = 0; i < iter.len && (o1 = iter.next(&iter)) != NULL; i++) {
vals[i] = apply_addressing(o1, addrtype, inplace);
}
iter_destroy(&iter);
v->len = i;
v->data = vals;
return Obj(v);
}
if (o1->obj == ADDRESS_OBJ) {
Address *v1 = Address(o1);
if (inplace && o1->refcount == 1) {
v1->type = addrtype | (v1->type << 4);
return val_reference(o1);
}
return new_address(val_reference(v1->val), addrtype | (v1->type << 4));
}
return new_address(val_reference(o1), addrtype);
}
static bool get_val2(struct eval_context_s *ev) {
argcount_t vsp = 0;
const struct out_s *out;
bool stop = (ev->gstop == 3 || ev->gstop == 4);
struct values_s *values;
struct oper_s oper;
Address_types am;
struct linepos_s epoint;
ev->values_p = 0;
values = ev->values;
epoint.line = lpoint.line;
oper.epoint3 = &epoint;
for (out = ev->out.p; out != ev->out.end; out++) {
struct values_s *v;
Obj *val = out->val;
if (val->obj != OPER_OBJ || Oper(val)->op == O_PARENT || Oper(val)->op == O_BRACKET || Oper(val)->op == O_BRACE) {
if (vsp >= ev->values_size) values = extend_values(ev, 16);
val = values[vsp].val;
if (val != NULL) val_destroy(val);
values[vsp].val = out->val;
values[vsp].epoint.pos = out->pos;
values[vsp++].epoint.line = epoint.line;
continue;
}
if (Oper(val)->op == O_COMMA || Oper(val)->op == O_COLON2) continue;
oper.op = Oper(val)->op;
switch (oper.op) {
case O_FUNC:
case O_INDEX:
{
argcount_t args = vsp;
Funcargs tmp;
Oper_types op = (oper.op == O_FUNC) ? O_PARENT : O_BRACKET;
if (vsp == 0) goto syntaxe;
v = &values[vsp - 1];
while (v->val->obj != OPER_OBJ || Oper(v->val)->op != op) {
vsp--;
if (vsp == 0) goto syntaxe;
v--;
}
args -= vsp;
vsp--;
if (vsp == 0) goto syntaxe;
tmp.val = v + 1;
tmp.len = args; /* assumes no referencing */
tmp.v.obj = FUNCARGS_OBJ;
epoint.pos = out->pos;
v--;
oper.v1 = v[1].val = v[0].val;
oper.v2 = &tmp.v;
oper.epoint = &v[0].epoint;
oper.epoint2 = (args != 0) ? &tmp.val->epoint : &epoint;
if (op == O_BRACKET) {
oper.inplace = (oper.v1->refcount == 1) ? oper.v1 : NULL;
v[0].val = oper.v1->obj->slice(&oper, 0);
} else {
oper.inplace = NULL;
v[0].val = oper.v1->obj->calc2(&oper);
}
while ((args--) != 0) {
val_destroy(tmp.val[args].val);
tmp.val[args].val = NULL;
}
continue;
}
case O_RBRACKET:
case O_RPARENT:
case O_TUPLE:
case O_LIST:
{
List *list;
bool tup = (oper.op == O_RPARENT), expc = (oper.op == O_TUPLE || oper.op == O_LIST);
argcount_t args = vsp;
Oper_types op = (oper.op == O_RBRACKET || oper.op == O_LIST) ? O_BRACKET : O_PARENT;
if (vsp == 0) goto syntaxe;
v = &values[vsp - 1];
while (v->val->obj != OPER_OBJ || Oper(v->val)->op != op) {
vsp--;
if (vsp == 0) goto syntaxe;
v--;
}
args -= vsp;
if (stop && !expc) {
Address_types am2;
if (out + 1 != ev->out.end) {
Obj *obj = out[1].val;
if (obj->obj != OPER_OBJ ||
(Oper(obj)->op != O_RPARENT && /* ((3)) */
Oper(obj)->op != O_RBRACKET && /* [(3)] */
Oper(obj)->op != O_RBRACE && /* {(3)} */
Oper(obj)->op != O_FUNC && /* f((3)) */
Oper(obj)->op != O_INDEX && /* m[(3)] */
Oper(obj)->op != O_COMMA && /* [(3),(3)] */
!(Oper(obj)->op >= O_COMMAX && Oper(obj)->op <= O_COMMAK) /* (3),y */
)) {
goto nind;