static njs_ret_t
njs_array_prototype_push(njs_vm_t *vm, njs_param_t *param)
{
uintptr_t i, nargs;
njs_ret_t ret;
njs_value_t *args;
njs_array_t *array;
if (njs_is_array(param->object)) {
array = param->object->data.u.array;
nargs = param->nargs;
if (nargs != 0) {
if (nargs > array->size - array->length) {
ret = njs_array_realloc(vm, array, 0, array->size + nargs);
if (nxt_slow_path(ret != NXT_OK)) {
return ret;
}
}
args = param->args;
for (i = 0; i < nargs; i++) {
/* GC: njs_retain(&args[i]); */
array->start[array->length++] = args[i];
}
}
njs_number_set(&vm->retval, array->length);
}
return NXT_OK;
}
static njs_ret_t
njs_array_prototype_length(njs_vm_t *vm, njs_value_t *array)
{
njs_number_set(&vm->retval, array->data.u.array->length);
njs_release(vm, array);
return NXT_OK;
}
static njs_ret_t
njs_regexp_prototype_last_index(njs_vm_t *vm, njs_value_t *value)
{
uint32_t index;
njs_regexp_t *regexp;
njs_string_prop_t string;
njs_release(vm, value);
regexp = value->data.u.regexp;
(void) njs_string_prop(&string, ®exp->string);
index = njs_string_index(&string, regexp->last_index);
njs_number_set(&vm->retval, index);
return NXT_OK;
}
static njs_ret_t
njs_array_prototype_unshift(njs_vm_t *vm, njs_param_t *param)
{
uintptr_t nargs;
njs_ret_t ret;
njs_value_t *args;
njs_array_t *array;
if (njs_is_array(param->object)) {
array = param->object->data.u.array;
nargs = param->nargs;
if (nargs != 0) {
if ((intptr_t) nargs > (array->start - array->data)) {
ret = njs_array_realloc(vm, array, nargs, array->size);
if (nxt_slow_path(ret != NXT_OK)) {
return ret;
}
}
array->length += nargs;
args = param->args;
do {
nargs--;
/* GC: njs_retain(&args[nargs]); */
array->start--;
array->start[0] = args[nargs];
} while (nargs != 0);
}
njs_number_set(&vm->retval, array->length);
}
return NXT_OK;
}
static njs_ret_t
njs_array_prototype_every(njs_vm_t *vm, njs_param_t *param)
{
nxt_int_t n;
uintptr_t nargs;
njs_param_t p;
njs_array_t *array;
njs_value_t *object, *args, *func, arguments[3];
njs_array_each_t *each;
object = param->object;
if (!vm->frame->reentrant) {
vm->frame->reentrant = 1;
if (!njs_is_array(object)) {
vm->exception = &njs_exception_type_error;
return NXT_ERROR;
}
array = object->data.u.array;
n = njs_array_next(array->start, 0, array->length);
each = njs_native_data(vm->frame);
each->index = n;
each->length = array->length;
} else {
each = njs_native_data(vm->frame);
if (!njs_is_true(&each->retval)) {
vm->retval = njs_value_false;
return NXT_OK;
}
}
n = each->index;
if (n < 0) {
vm->retval = njs_value_true;
return NXT_OK;
}
/* GC: array elt, array */
array = object->data.u.array;
arguments[0] = array->start[n];
njs_number_set(&arguments[1], n);
arguments[2] = *object;
each->index = njs_array_next(array->start, ++n, each->length);
nargs = param->nargs;
args = param->args;
p.object = (nargs > 1) ? &args[1] : (njs_value_t *) &njs_value_void;
p.args = arguments;
p.nargs = 3;
p.retval = (njs_index_t) &each->retval;
func = (nargs != 0) ? &args[0] : (njs_value_t *) &njs_value_void;
vm->current -= sizeof(njs_vmcode_call_t);
return njs_function_apply(vm, func, &p);
}
static njs_ret_t
njs_regexp_exec_result(njs_vm_t *vm, njs_regexp_t *regexp, u_char *string,
nxt_regex_match_data_t *match_data, nxt_uint_t utf8)
{
int *captures;
u_char *start;
int32_t size, length;
njs_ret_t ret;
nxt_uint_t i, n;
njs_array_t *array;
njs_object_prop_t *prop;
nxt_lvlhsh_query_t lhq;
static const njs_value_t njs_string_index = njs_string("index");
static const njs_value_t njs_string_input = njs_string("input");
array = njs_array_alloc(vm, regexp->pattern->ncaptures, 0);
if (nxt_slow_path(array == NULL)) {
goto fail;
}
captures = nxt_regex_captures(match_data);
for (i = 0; i < regexp->pattern->ncaptures; i++) {
n = 2 * i;
if (captures[n] != -1) {
start = &string[captures[n]];
size = captures[n + 1] - captures[n];
switch (utf8) {
case 0:
length = 0;
break;
case 1:
length = size;
break;
default:
length = nxt_utf8_length(start, size);
break;
}
ret = njs_regexp_string_create(vm, &array->start[i],
start, size, length);
if (nxt_slow_path(ret != NXT_OK)) {
goto fail;
}
} else {
array->start[i] = njs_value_void;
}
}
prop = njs_object_prop_alloc(vm, &njs_string_index);
if (nxt_slow_path(prop == NULL)) {
goto fail;
}
/* TODO: Non UTF-8 position */
njs_number_set(&prop->value, regexp->last_index + captures[0]);
if (regexp->pattern->global) {
regexp->last_index += captures[1];
}
lhq.key_hash = NJS_INDEX_HASH;
lhq.key.len = sizeof("index") - 1;
lhq.key.data = (u_char *) "index";
lhq.replace = 0;
lhq.value = prop;
lhq.pool = vm->mem_cache_pool;
lhq.proto = &njs_object_hash_proto;
ret = nxt_lvlhsh_insert(&array->object.hash, &lhq);
if (nxt_slow_path(ret != NXT_OK)) {
goto fail;
}
prop = njs_object_prop_alloc(vm, &njs_string_input);
if (nxt_slow_path(prop == NULL)) {
goto fail;
}
njs_string_copy(&prop->value, ®exp->string);
lhq.key_hash = NJS_INPUT_HASH;
lhq.key.len = sizeof("input") - 1;
lhq.key.data = (u_char *) "input";
lhq.value = prop;
ret = nxt_lvlhsh_insert(&array->object.hash, &lhq);
if (nxt_fast_path(ret == NXT_OK)) {
vm->retval.data.u.array = array;
vm->retval.type = NJS_ARRAY;
vm->retval.data.truth = 1;
ret = NXT_OK;
goto done;
}
fail:
ret = NXT_ERROR;
done:
nxt_regex_match_data_free(match_data, vm->regex_context);
return ret;
}
