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#include "../nbt.internal.h"
#include "nbt.h"
#include "src/nbt.internal.h"
#include <limits.h>
#include <stdlib.h>
#include <string.h>
const char *const nbt__type_names[] = {
"TAG_End",
"TAG_Byte",
"TAG_Short",
"TAG_Int",
"TAG_Long",
"TAG_Float",
"TAG_Double",
"TAG_Byte_Array",
"TAG_String",
"TAG_List",
"TAG_Compound",
"TAG_Int_Array",
"TAG_Long_Array",
NULL
};
nbt_type_t nbt_tag_type(nbt_tag_t *tag)
{
if (!tag) return NBT_TAG_END;
return tag->type;
}
nbt_tag_t *nbt__new_val(nbt_type_t type)
{
nbt_tag_t *tag = calloc(1, sizeof(nbt_tag_t));
if (!tag) return NULL;
tag->ref = 1;
tag->type = type;
return tag;
}
nbt_tag_t *nbt_byte(nbt_byte_t b)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_BYTE);
if (!tag) return NULL;
tag->value.nbt_byte = b;
return tag;
}
nbt_tag_t *nbt_short(nbt_short_t s)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_SHORT);
if (!tag) return NULL;
tag->value.nbt_short = s;
return tag;
}
nbt_tag_t *nbt_int(nbt_int_t i)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_INT);
if (!tag) return NULL;
tag->value.nbt_int = i;
return tag;
}
nbt_tag_t *nbt_long(nbt_long_t l)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_LONG);
if (!tag) return NULL;
tag->value.nbt_long = l;
return tag;
}
nbt_tag_t *nbt_float(nbt_float_t f)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_FLOAT);
if (!tag) return NULL;
tag->value.nbt_float = f;
return tag;
}
nbt_tag_t *nbt_double(nbt_double_t d)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_DOUBLE);
if (!tag) return NULL;
tag->value.nbt_byte = d;
return tag;
}
#define NBT__BUFCOPY_BODY(_tl, _tu, _te, _inbuf, _inlen) \
{ \
static nbt_tag_t nbt__single_empty_ ## _tl = { \
.ref = SIZE_MAX, \
.type = NBT_TAG_ ## _tu, \
.value = { .nbt_ ## _tl = { .len = 0, .data = NULL } } \
}; \
\
if (!(_inlen)) return &nbt__single_empty_ ## _tl; \
\
nbt_tag_t *tag = nbt__new_val(NBT_TAG_ ## _tu); \
if (!tag) return NULL; \
\
_te *buf = calloc(_inlen, sizeof(_te)); \
if (!buf) goto cleanup; \
\
memcpy(buf, _inbuf, (_inlen) * sizeof(_te)); \
tag->value.nbt_ ## _tl.len = _inlen; \
tag->value.nbt_ ## _tl.data = buf; \
\
return tag; \
\
cleanup: \
free(tag); \
return NULL; \
}
nbt_tag_t *nbt_byte_array(const nbt_byte_t *bytes, nbt_size_t length)
NBT__BUFCOPY_BODY(byte_array, BYTE_ARRAY, nbt_byte_t, bytes, length)
nbt_tag_t *nbt_string(const char *c_str)
{
return nbt_stringn(c_str, strlen(c_str));
}
nbt_tag_t *nbt_stringn(const char *c_str, nbt_size_t length)
NBT__BUFCOPY_BODY(string, STRING, char, c_str, length)
nbt_tag_t *nbt_list(void)
{
return nbt_listn(0);
}
nbt_tag_t *nbt_listn(nbt_size_t cap)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_LIST);
if (!tag) return NULL;
tag->value.nbt_list.len = 0;
tag->value.nbt_list.cap = cap;
if (!cap) {
tag->value.nbt_list.ptags = NULL;
return tag;
}
nbt_tag_t **tags = calloc(cap, sizeof(nbt_tag_t *));
if (!tags) goto cleanup;
tag->value.nbt_list.ptags = tags;
return tag;
cleanup:
free(tag);
return NULL;
}
nbt_tag_t *nbt_compound(void)
{
return nbt_compoundn(0);
}
nbt_tag_t *nbt_compoundn(nbt_size_t cap)
{
nbt_tag_t *tag = nbt__new_val(NBT_TAG_COMPOUND);
if (!tag) return NULL;
tag->value.nbt_compound.hash = nbt__ht_create(cap);
if (!tag->value.nbt_compound.hash) goto cleanup;
return tag;
cleanup:
free(tag);
return NULL;
}
nbt_tag_t *nbt_int_array(const nbt_int_t *ints, nbt_size_t length)
NBT__BUFCOPY_BODY(int_array, INT_ARRAY, nbt_int_t, ints, length)
nbt_tag_t *nbt_long_array(const nbt_long_t *longs, nbt_size_t length)
NBT__BUFCOPY_BODY(long_array, LONG_ARRAY, nbt_long_t, longs, length);
void nbt_decref(nbt_tag_t *tag)
{
if (!tag) return;
if (tag->ref == SIZE_MAX) return;
--tag->ref;
if (!tag->ref) nbt__tag_free(tag);
}
nbt_tag_t *nbt_incref(nbt_tag_t *tag)
{
if (tag->ref != SIZE_MAX) ++tag->ref;
return tag;
}
void nbt__tag_free(nbt_tag_t *tag)
{
if (!tag) return;
switch (tag->type) {
case NBT_TAG_BYTE_ARRAY:
free(tag->value.nbt_byte_array.data);
break;
case NBT_TAG_STRING:
free(tag->value.nbt_string.data);
break;
case NBT_TAG_INT_ARRAY:
free(tag->value.nbt_int_array.data);
break;
case NBT_TAG_LONG_ARRAY:
free(tag->value.nbt_long_array.data);
break;
case NBT_TAG_LIST:
nbt_list_clear(tag);
free(tag->value.nbt_list.ptags);
break;
case NBT_TAG_COMPOUND:
nbt_compound_clear(tag);
nbt__ht_free(tag->value.nbt_compound.hash);
break;
default:
break;
}
free(tag);
}
const char *nbt_typestr(nbt_type_t type)
{
if (type < 0 || type >= NBT_TAG_MAX) return NULL;
return nbt__type_names[type];
}
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