static size_t
write_debug_record_1(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, mrb_sym const* filenames, uint16_t filenames_len)
{
uint8_t *cur;
uint16_t f_idx;
ptrdiff_t ret;
cur = bin + sizeof(uint32_t); /* skip record size */
cur += uint16_to_bin(irep->debug_info->flen, cur); /* file count */
for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) {
int filename_idx;
const mrb_irep_debug_info_file *file = irep->debug_info->files[f_idx];
/* position */
cur += uint32_to_bin(file->start_pos, cur);
/* filename index */
filename_idx = find_filename_index(filenames, filenames_len,
file->filename_sym);
mrb_assert_int_fit(int, filename_idx, uint16_t, UINT16_MAX);
cur += uint16_to_bin((uint16_t)filename_idx, cur);
/* lines */
cur += uint32_to_bin(file->line_entry_count, cur);
cur += uint8_to_bin(file->line_type, cur);
switch (file->line_type) {
case mrb_debug_line_ary: {
uint32_t l;
for (l = 0; l < file->line_entry_count; ++l) {
cur += uint16_to_bin(file->lines.ary[l], cur);
}
} break;
case mrb_debug_line_flat_map: {
uint32_t line;
for (line = 0; line < file->line_entry_count; ++line) {
cur += uint32_to_bin(file->lines.flat_map[line].start_pos, cur);
cur += uint16_to_bin(file->lines.flat_map[line].line, cur);
}
} break;
default: mrb_assert(0); break;
}
}
ret = cur - bin;
mrb_assert_int_fit(ptrdiff_t, ret, uint32_t, UINT32_MAX);
uint32_to_bin(ret, bin);
mrb_assert_int_fit(ptrdiff_t, ret, size_t, SIZE_MAX);
return (size_t)ret;
}
static size_t
get_pool_block_size(mrb_state *mrb, mrb_irep *irep)
{
size_t size = 0;
size_t pool_no;
mrb_value str;
char buf[32];
size += sizeof(uint32_t); /* plen */
size += irep->plen * (sizeof(uint8_t) + sizeof(uint16_t)); /* len(n) */
for (pool_no = 0; pool_no < irep->plen; pool_no++) {
int ai = mrb_gc_arena_save(mrb);
switch (mrb_type(irep->pool[pool_no])) {
case MRB_TT_FIXNUM:
str = mrb_fixnum_to_str(mrb, irep->pool[pool_no], 10);
{
mrb_int len = RSTRING_LEN(str);
mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX);
size += (size_t)len;
}
break;
case MRB_TT_FLOAT:
{
int len;
len = mrb_float_to_str(buf, mrb_float(irep->pool[pool_no]));
mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX);
size += (size_t)len;
}
break;
case MRB_TT_STRING:
{
mrb_int len = RSTRING_LEN(irep->pool[pool_no]);
mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX);
size += (size_t)len;
}
break;
default:
break;
}
mrb_gc_arena_restore(mrb, ai);
}
return size;
}
static int
write_section_lv(mrb_state *mrb, mrb_irep *irep, uint8_t *start, mrb_sym const *syms, uint32_t const syms_len)
{
uint8_t *cur = start;
struct rite_section_lv_header *header;
ptrdiff_t diff;
int result = MRB_DUMP_OK;
if (mrb == NULL || cur == NULL) {
return MRB_DUMP_INVALID_ARGUMENT;
}
header = (struct rite_section_lv_header*)cur;
cur += sizeof(struct rite_section_lv_header);
result = write_lv_sym_table(mrb, &cur, syms, syms_len);
if (result != MRB_DUMP_OK) {
goto lv_section_exit;
}
result = write_lv_record(mrb, irep, &cur, syms, syms_len);
if (result != MRB_DUMP_OK) {
goto lv_section_exit;
}
memcpy(header->section_identify, RITE_SECTION_LV_IDENTIFIER, sizeof(header->section_identify));
diff = cur - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
uint32_to_bin(diff, header->section_size);
lv_section_exit:
return result;
}
static ptrdiff_t
write_syms_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf)
{
uint32_t sym_no;
uint8_t *cur = buf;
const char *name;
cur += uint32_to_bin(irep->slen, cur); /* number of symbol */
for (sym_no = 0; sym_no < irep->slen; sym_no++) {
if (irep->syms[sym_no] != 0) {
mrb_int len;
name = mrb_sym2name_len(mrb, irep->syms[sym_no], &len);
mrb_assert_int_fit(mrb_int, len, uint16_t, UINT16_MAX);
cur += uint16_to_bin((uint16_t)len, cur); /* length of symbol name */
memcpy(cur, name, len); /* symbol name */
cur += (uint16_t)len;
*cur++ = '\0';
}
else {
cur += uint16_to_bin(MRB_DUMP_NULL_SYM_LEN, cur); /* length of symbol name */
}
}
return cur - buf;
}
static size_t
write_lineno_record_1(mrb_state *mrb, mrb_irep *irep, uint8_t* bin)
{
uint8_t *cur = bin;
size_t iseq_no;
size_t filename_len;
ptrdiff_t diff;
cur += sizeof(uint32_t); /* record size */
if (irep->filename) {
filename_len = strlen(irep->filename);
}
else {
filename_len = 0;
}
mrb_assert_int_fit(size_t, filename_len, uint16_t, UINT16_MAX);
cur += uint16_to_bin((uint16_t)filename_len, cur); /* filename size */
if (filename_len) {
memcpy(cur, irep->filename, filename_len);
cur += filename_len; /* filename */
}
if (irep->lines) {
mrb_assert_int_fit(size_t, irep->ilen, uint32_t, UINT32_MAX);
cur += uint32_to_bin((uint32_t)(irep->ilen), cur); /* niseq */
for (iseq_no = 0; iseq_no < irep->ilen; iseq_no++) {
cur += uint16_to_bin(irep->lines[iseq_no], cur); /* opcode */
}
}
else {
cur += uint32_to_bin(0, cur); /* niseq */
}
diff = cur - bin;
mrb_assert_int_fit(ptrdiff_t, diff, uint32_t, UINT32_MAX);
uint32_to_bin((uint32_t)diff, bin); /* record size */
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
return (size_t)diff;
}
static int
write_section_irep_header(mrb_state *mrb, size_t section_size, uint8_t *bin)
{
struct rite_section_irep_header *header = (struct rite_section_irep_header*)bin;
memcpy(header->section_identify, RITE_SECTION_IREP_IDENTIFIER, sizeof(header->section_identify));
mrb_assert_int_fit(size_t, section_size, uint32_t, UINT32_MAX);
uint32_to_bin((uint32_t)section_size, header->section_size);
memcpy(header->rite_version, RITE_VM_VER, sizeof(header->rite_version));
return MRB_DUMP_OK;
}
static ptrdiff_t
write_pool_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf)
{
size_t pool_no;
uint8_t *cur = buf;
uint16_t len;
mrb_value str;
const char *char_ptr;
cur += uint32_to_bin(irep->plen, cur); /* number of pool */
for (pool_no = 0; pool_no < irep->plen; pool_no++) {
int ai = mrb_gc_arena_save(mrb);
switch (mrb_type(irep->pool[pool_no])) {
case MRB_TT_FIXNUM:
cur += uint8_to_bin(IREP_TT_FIXNUM, cur); /* data type */
str = mrb_fixnum_to_str(mrb, irep->pool[pool_no], 10);
break;
case MRB_TT_FLOAT:
cur += uint8_to_bin(IREP_TT_FLOAT, cur); /* data type */
str = mrb_float_to_str(mrb, irep->pool[pool_no], MRB_FLOAT_FMT);
break;
case MRB_TT_STRING:
cur += uint8_to_bin(IREP_TT_STRING, cur); /* data type */
str = irep->pool[pool_no];
break;
default:
continue;
}
char_ptr = RSTRING_PTR(str);
{
mrb_int tlen = RSTRING_LEN(str);
mrb_assert_int_fit(mrb_int, tlen, uint16_t, UINT16_MAX);
len = (uint16_t)tlen;
}
cur += uint16_to_bin(len, cur); /* data length */
memcpy(cur, char_ptr, (size_t)len);
cur += len;
mrb_gc_arena_restore(mrb, ai);
}
return cur - buf;
}
static int
read_section_debug(mrb_state *mrb, const uint8_t *start, mrb_irep *irep, uint8_t flags)
{
const uint8_t *bin;
ptrdiff_t diff;
struct rite_section_debug_header *header;
uint16_t i;
size_t len = 0;
int result;
uint16_t filenames_len;
mrb_sym *filenames;
bin = start;
header = (struct rite_section_debug_header *)bin;
bin += sizeof(struct rite_section_debug_header);
filenames_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
filenames = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) * (size_t)filenames_len);
for (i = 0; i < filenames_len; ++i) {
uint16_t f_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
if (flags & FLAG_SRC_MALLOC) {
filenames[i] = mrb_intern(mrb, (const char *)bin, (size_t)f_len);
}
else {
filenames[i] = mrb_intern_static(mrb, (const char *)bin, (size_t)f_len);
}
bin += f_len;
}
result = read_debug_record(mrb, bin, irep, &len, filenames, filenames_len);
if (result != MRB_DUMP_OK) goto debug_exit;
bin += len;
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
if ((uint32_t)diff != bin_to_uint32(header->section_size)) {
result = MRB_DUMP_GENERAL_FAILURE;
}
debug_exit:
mrb_free(mrb, filenames);
return result;
}
static int
read_section_lv(mrb_state *mrb, const uint8_t *start, mrb_irep *irep, uint8_t flags)
{
const uint8_t *bin;
ptrdiff_t diff;
struct rite_section_lv_header const *header;
uint32_t i;
size_t len = 0;
int result;
uint32_t syms_len;
mrb_sym *syms;
mrb_sym (*intern_func)(mrb_state*, const char*, size_t) =
(flags & FLAG_SRC_MALLOC)? mrb_intern : mrb_intern_static;
bin = start;
header = (struct rite_section_lv_header const*)bin;
bin += sizeof(struct rite_section_lv_header);
syms_len = bin_to_uint32(bin);
bin += sizeof(uint32_t);
syms = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) * (size_t)syms_len);
for (i = 0; i < syms_len; ++i) {
uint16_t const str_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
syms[i] = intern_func(mrb, (const char*)bin, str_len);
bin += str_len;
}
result = read_lv_record(mrb, bin, irep, &len, syms, syms_len);
if (result != MRB_DUMP_OK) goto lv_exit;
bin += len;
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
if ((uint32_t)diff != bin_to_uint32(header->section_size)) {
result = MRB_DUMP_GENERAL_FAILURE;
}
lv_exit:
mrb_free(mrb, syms);
return result;
}
static int
read_lv_record(mrb_state *mrb, const uint8_t *start, mrb_irep *irep, size_t *record_len, mrb_sym const *syms, uint32_t syms_len)
{
const uint8_t *bin = start;
ptrdiff_t diff;
int i;
irep->lv = (struct mrb_locals*)mrb_malloc(mrb, sizeof(struct mrb_locals) * (irep->nlocals - 1));
for (i = 0; i + 1< irep->nlocals; ++i) {
uint16_t const sym_idx = bin_to_uint16(bin);
bin += sizeof(uint16_t);
if (sym_idx == RITE_LV_NULL_MARK) {
irep->lv[i].name = 0;
irep->lv[i].r = 0;
}
else {
if (sym_idx >= syms_len) {
return MRB_DUMP_GENERAL_FAILURE;
}
irep->lv[i].name = syms[sym_idx];
irep->lv[i].r = bin_to_uint16(bin);
}
bin += sizeof(uint16_t);
}
for (i = 0; i < irep->rlen; ++i) {
size_t len;
int ret;
ret = read_lv_record(mrb, bin, irep->reps[i], &len, syms, syms_len);
if (ret != MRB_DUMP_OK) return ret;
bin += len;
}
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*record_len = (size_t)diff;
return MRB_DUMP_OK;
}
static mrb_value
sym_inspect(mrb_state *mrb, mrb_value sym)
{
mrb_value str;
const char *name;
mrb_int len;
mrb_sym id = mrb_symbol(sym);
char *sp;
name = mrb_sym2name_len(mrb, id, &len);
str = mrb_str_new(mrb, 0, len+1);
sp = RSTRING_PTR(str);
RSTRING_PTR(str)[0] = ':';
memcpy(sp+1, name, len);
mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX);
if (!symname_p(name) || strlen(name) != (size_t)len) {
str = mrb_str_dump(mrb, str);
sp = RSTRING_PTR(str);
sp[0] = ':';
sp[1] = '"';
}
return str;
}
static mrb_irep*
read_irep_record_1(mrb_state *mrb, const uint8_t *bin, size_t *len, uint8_t flags)
{
int i;
const uint8_t *src = bin;
ptrdiff_t diff;
uint16_t tt, pool_data_len, snl;
int plen;
int ai = mrb_gc_arena_save(mrb);
mrb_irep *irep = mrb_add_irep(mrb);
/* skip record size */
src += sizeof(uint32_t);
/* number of local variable */
irep->nlocals = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of register variable */
irep->nregs = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of child irep */
irep->rlen = (size_t)bin_to_uint16(src);
src += sizeof(uint16_t);
/* Binary Data Section */
/* ISEQ BLOCK */
irep->ilen = (uint16_t)bin_to_uint32(src);
src += sizeof(uint32_t);
src += skip_padding(src);
if (irep->ilen > 0) {
if (SIZE_ERROR_MUL(irep->ilen, sizeof(mrb_code))) {
return NULL;
}
if ((flags & FLAG_SRC_MALLOC) == 0 &&
(flags & FLAG_BYTEORDER_NATIVE)) {
irep->iseq = (mrb_code*)src;
src += sizeof(mrb_code) * irep->ilen;
irep->flags |= MRB_ISEQ_NO_FREE;
}
else {
size_t data_len = sizeof(mrb_code) * irep->ilen;
irep->iseq = (mrb_code *)mrb_malloc(mrb, data_len);
memcpy(irep->iseq, src, data_len);
src += data_len;
}
}
/* POOL BLOCK */
plen = bin_to_uint32(src); /* number of pool */
src += sizeof(uint32_t);
if (plen > 0) {
if (SIZE_ERROR_MUL(plen, sizeof(mrb_value))) {
return NULL;
}
irep->pool = (mrb_value*)mrb_malloc(mrb, sizeof(mrb_value) * plen);
for (i = 0; i < plen; i++) {
mrb_value s;
tt = *src++; /* pool TT */
pool_data_len = bin_to_uint16(src); /* pool data length */
src += sizeof(uint16_t);
if (flags & FLAG_SRC_MALLOC) {
s = mrb_str_new(mrb, (char *)src, pool_data_len);
}
else {
s = mrb_str_new_static(mrb, (char *)src, pool_data_len);
}
src += pool_data_len;
switch (tt) { /* pool data */
case IREP_TT_FIXNUM: {
mrb_value num = mrb_str_to_inum(mrb, s, 10, FALSE);
#ifdef MRB_WITHOUT_FLOAT
irep->pool[i] = num;
#else
irep->pool[i] = mrb_float_p(num)? mrb_float_pool(mrb, mrb_float(num)) : num;
#endif
}
break;
#ifndef MRB_WITHOUT_FLOAT
case IREP_TT_FLOAT:
irep->pool[i] = mrb_float_pool(mrb, mrb_str_to_dbl(mrb, s, FALSE));
break;
#endif
case IREP_TT_STRING:
irep->pool[i] = mrb_str_pool(mrb, s);
break;
default:
/* should not happen */
irep->pool[i] = mrb_nil_value();
break;
}
irep->plen++;
mrb_gc_arena_restore(mrb, ai);
}
}
/* SYMS BLOCK */
irep->slen = (uint16_t)bin_to_uint32(src); /* syms length */
src += sizeof(uint32_t);
if (irep->slen > 0) {
if (SIZE_ERROR_MUL(irep->slen, sizeof(mrb_sym))) {
return NULL;
}
irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);
for (i = 0; i < irep->slen; i++) {
snl = bin_to_uint16(src); /* symbol name length */
src += sizeof(uint16_t);
if (snl == MRB_DUMP_NULL_SYM_LEN) {
irep->syms[i] = 0;
continue;
}
if (flags & FLAG_SRC_MALLOC) {
irep->syms[i] = mrb_intern(mrb, (char *)src, snl);
}
else {
irep->syms[i] = mrb_intern_static(mrb, (char *)src, snl);
}
src += snl + 1;
mrb_gc_arena_restore(mrb, ai);
}
}
irep->reps = (mrb_irep**)mrb_malloc(mrb, sizeof(mrb_irep*)*irep->rlen);
diff = src - bin;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*len = (size_t)diff;
return irep;
}
static int
read_debug_record(mrb_state *mrb, const uint8_t *start, mrb_irep* irep, size_t *record_len, const mrb_sym *filenames, size_t filenames_len)
{
const uint8_t *bin = start;
ptrdiff_t diff;
size_t record_size;
uint16_t f_idx;
int i;
if (irep->debug_info) { return MRB_DUMP_INVALID_IREP; }
irep->debug_info = (mrb_irep_debug_info*)mrb_malloc(mrb, sizeof(mrb_irep_debug_info));
irep->debug_info->pc_count = (uint32_t)irep->ilen;
record_size = (size_t)bin_to_uint32(bin);
bin += sizeof(uint32_t);
irep->debug_info->flen = bin_to_uint16(bin);
irep->debug_info->files = (mrb_irep_debug_info_file**)mrb_malloc(mrb, sizeof(mrb_irep_debug_info*) * irep->debug_info->flen);
bin += sizeof(uint16_t);
for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) {
mrb_irep_debug_info_file *file;
uint16_t filename_idx;
mrb_int len;
file = (mrb_irep_debug_info_file *)mrb_malloc(mrb, sizeof(*file));
irep->debug_info->files[f_idx] = file;
file->start_pos = bin_to_uint32(bin);
bin += sizeof(uint32_t);
/* filename */
filename_idx = bin_to_uint16(bin);
bin += sizeof(uint16_t);
mrb_assert(filename_idx < filenames_len);
file->filename_sym = filenames[filename_idx];
len = 0;
file->filename = mrb_sym2name_len(mrb, file->filename_sym, &len);
file->line_entry_count = bin_to_uint32(bin);
bin += sizeof(uint32_t);
file->line_type = (mrb_debug_line_type)bin_to_uint8(bin);
bin += sizeof(uint8_t);
switch (file->line_type) {
case mrb_debug_line_ary: {
uint32_t l;
file->lines.ary = (uint16_t *)mrb_malloc(mrb, sizeof(uint16_t) * (size_t)(file->line_entry_count));
for (l = 0; l < file->line_entry_count; ++l) {
file->lines.ary[l] = bin_to_uint16(bin);
bin += sizeof(uint16_t);
}
} break;
case mrb_debug_line_flat_map: {
uint32_t l;
file->lines.flat_map = (mrb_irep_debug_info_line*)mrb_malloc(
mrb, sizeof(mrb_irep_debug_info_line) * (size_t)(file->line_entry_count));
for (l = 0; l < file->line_entry_count; ++l) {
file->lines.flat_map[l].start_pos = bin_to_uint32(bin);
bin += sizeof(uint32_t);
file->lines.flat_map[l].line = bin_to_uint16(bin);
bin += sizeof(uint16_t);
}
} break;
default: return MRB_DUMP_GENERAL_FAILURE;
}
}
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
if (record_size != (size_t)diff) {
return MRB_DUMP_GENERAL_FAILURE;
}
for (i = 0; i < irep->rlen; i++) {
size_t len;
int ret;
ret = read_debug_record(mrb, bin, irep->reps[i], &len, filenames, filenames_len);
if (ret != MRB_DUMP_OK) return ret;
bin += len;
}
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*record_len = (size_t)diff;
return MRB_DUMP_OK;
}
static mrb_irep*
read_irep_record_1(mrb_state *mrb, const uint8_t *bin, size_t *len, mrb_bool alloc)
{
size_t i;
const uint8_t *src = bin;
ptrdiff_t diff;
uint16_t tt, pool_data_len, snl;
size_t plen;
int ai = mrb_gc_arena_save(mrb);
mrb_irep *irep = mrb_add_irep(mrb);
/* skip record size */
src += sizeof(uint32_t);
/* number of local variable */
irep->nlocals = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of register variable */
irep->nregs = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of child irep */
irep->rlen = (size_t)bin_to_uint16(src);
src += sizeof(uint16_t);
/* Binary Data Section */
/* ISEQ BLOCK */
irep->ilen = (size_t)bin_to_uint32(src);
src += sizeof(uint32_t);
if (irep->ilen > 0) {
if (SIZE_ERROR_MUL(sizeof(mrb_code), irep->ilen)) {
return NULL;
}
irep->iseq = (mrb_code *)mrb_malloc(mrb, sizeof(mrb_code) * irep->ilen);
for (i = 0; i < irep->ilen; i++) {
irep->iseq[i] = (size_t)bin_to_uint32(src); /* iseq */
src += sizeof(uint32_t);
}
}
/* POOL BLOCK */
plen = (size_t)bin_to_uint32(src); /* number of pool */
src += sizeof(uint32_t);
if (plen > 0) {
if (SIZE_ERROR_MUL(sizeof(mrb_value), plen)) {
return NULL;
}
irep->pool = (mrb_value*)mrb_malloc(mrb, sizeof(mrb_value) * plen);
for (i = 0; i < plen; i++) {
mrb_value s;
tt = *src++; /* pool TT */
pool_data_len = bin_to_uint16(src); /* pool data length */
src += sizeof(uint16_t);
if (alloc) {
s = mrb_str_new(mrb, (char *)src, pool_data_len);
}
else {
s = mrb_str_new_static(mrb, (char *)src, pool_data_len);
}
src += pool_data_len;
switch (tt) { /* pool data */
case IREP_TT_FIXNUM:
irep->pool[i] = mrb_str_to_inum(mrb, s, 10, FALSE);
break;
case IREP_TT_FLOAT:
irep->pool[i] = mrb_float_pool(mrb, mrb_str_to_dbl(mrb, s, FALSE));
break;
case IREP_TT_STRING:
irep->pool[i] = mrb_str_pool(mrb, s);
break;
default:
/* should not happen */
irep->pool[i] = mrb_nil_value();
break;
}
irep->plen++;
mrb_gc_arena_restore(mrb, ai);
}
}
/* SYMS BLOCK */
irep->slen = (size_t)bin_to_uint32(src); /* syms length */
src += sizeof(uint32_t);
if (irep->slen > 0) {
if (SIZE_ERROR_MUL(sizeof(mrb_sym), irep->slen)) {
return NULL;
}
irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);
for (i = 0; i < irep->slen; i++) {
snl = bin_to_uint16(src); /* symbol name length */
src += sizeof(uint16_t);
if (snl == MRB_DUMP_NULL_SYM_LEN) {
irep->syms[i] = 0;
continue;
}
if (alloc) {
irep->syms[i] = mrb_intern(mrb, (char *)src, snl);
}
else {
irep->syms[i] = mrb_intern_static(mrb, (char *)src, snl);
}
src += snl + 1;
mrb_gc_arena_restore(mrb, ai);
}
}
irep->reps = (mrb_irep**)mrb_malloc(mrb, sizeof(mrb_irep*)*irep->rlen);
diff = src - bin;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*len = (size_t)diff;
return irep;
}