General Purpose library for Freestanding C++ and POSIX systems
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#pragma once
#include <gp/pair.hpp>
#include <gp/optional.hpp>
#include <gp/variant.hpp>
#include <gp/vector.hpp>
namespace gp {
enum class cbor_type {
uint = 0,
nint = 1,
bstr = 2,
tstr = 3,
list = 4,
hmap = 5,
tags = 6,
oths = 7
};
enum class cbor_oths {
value_false = 20,
value_true = 21,
value_null = 22,
value_undefined = 23,
byte = 24,
word = 25,
dword = 26,
qword = 27,
terminator = 31
};
enum class cbor_tags {
datetime = 0,
unix_time = 1,
ubignum = 2,
nbignum = 3,
decimal = 4,
bigfloat = 5,
cose_encrypt0 = 16,
cose_mac0 = 17,
cose_sign1 = 18,
expected_base64url = 21,
expected_base64 = 22,
expected_base16 = 23,
encoded_cbor = 24,
url = 32,
base64url = 33,
base64 = 34,
regexp = 35,
mime = 36,
cose_encrypt = 96,
cose_mac = 97,
cose_sign = 98,
signature = 55799
};
using cbor_number = gp::fixed_variant<
int8_t,
uint8_t,
int16_t,
uint16_t,
int32_t,
uint32_t,
int64_t,
uint64_t
>;
using cbor_floating_point = gp::fixed_variant<
float,
double
>;
struct undefined_t final {};
template<typename T>
using cbor_composite = gp::fixed_variant<
cbor_number,
gp::buffer<std::byte>,
bool,
gp::vector<T>,
gp::vector<gp::pair<T, T>>,
gp::nullopt_t,
undefined_t,
cbor_floating_point
>;
class cbor_value {
cbor_composite<cbor_value> contents;
gp::reference_wrapper<allocator> alloc;
public:
cbor_value(allocator& alloc_v)
: contents(cbor_composite<cbor_value>(undefined_t{}))
, alloc(alloc_v)
{}
cbor_value(cbor_number number, allocator& alloc_v)
: contents(number)
, alloc(alloc_v)
{}
cbor_value& operator=(cbor_value& value) {
contents = value.contents;
alloc = value.alloc;
return *this;
}
cbor_value& operator=(cbor_value&& value) {
gp::swap(contents, value.contents);
gp::swap(alloc, value.alloc);
return *this;
}
cbor_value& operator=(cbor_composite<cbor_value>& value) {
contents = value;
return *this;
}
auto new_array() {
return gp::vector<cbor_value>{alloc};
}
auto new_object() {
return gp::vector<gp::pair<cbor_value, cbor_value>>{alloc};
}
};
}