tags.c

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/*
 * Copyright (c) 2014-2017 Pavel Kalvoda <me@pavelkalvoda.com>
 *
 * libcbor is free software; you can redistribute it and/or modify
 * it under the terms of the MIT license. See LICENSE for details.
 */

#include "tags.h"

cbor_item_t *cbor_new_tag(uint64_t value)
{
    cbor_item_t *item = _CBOR_MALLOC(sizeof(cbor_item_t));
    *item = (cbor_item_t) {
        .refcount = 1,
        .type = CBOR_TYPE_TAG,
        .metadata = {.tag_metadata = {.value = value, .tagged_item = NULL}},
        .data = NULL /* Never used */
    };
    return item;
}

cbor_item_t *cbor_tag_item(const cbor_item_t *item)
{
    assert(cbor_isa_tag(item));
    return item->metadata.tag_metadata.tagged_item;
}

uint64_t cbor_tag_value(const cbor_item_t *item)
{
    assert(cbor_isa_tag(item));
    return item->metadata.tag_metadata.value;
}

void cbor_tag_set_item(cbor_item_t *item, cbor_item_t *tagged_item)
{
    assert(cbor_isa_tag(item));
    cbor_incref(tagged_item);
    item->metadata.tag_metadata.tagged_item = tagged_item;
}

cbor_item_t * cbor_build_tag(uint64_t value, cbor_item_t * item) {
    cbor_item_t *res = cbor_new_tag(value);
    cbor_tag_set_item(res, item);
    return res;
}