Tags
in package
FinalYes
Pure constants -- CBOR tag numbers and bit-layout tables, mirroring `dxn/DXN.md` §2.3 verbatim. No behavior beyond the flag<->byte conversions, which exist here (not in the encoder/decoder) as one shared source of truth for the bit layout, used by both directions.
Table of Contents
Constants
- DURATION_FIELDS : mixed = ['years', 'months', 'weeks', 'days', 'hours', '...
- Duration bitmask field order, low bit first (`DXN.md` §2.3).
- REGEX_FLAG_BITS : mixed = ['i', 'm', 's', 'u', 'x', 'f', 'r']
- Regex flags byte bit order, low bit first (`DXN.md` §2.3).
- T_ARRAY : mixed = 204
- T_BIGNUM_NEG : mixed = 3
- T_BIGNUM_POS : mixed = 2
- T_BITS : mixed = 216
- A run of bits that is not whole bytes: `[bytes, count]` (DXN.md §2.3).
- T_CHAR : mixed = 200
- T_CUSTOM : mixed = 214
- T_DATE : mixed = 209
- T_DATETIME : mixed = 219
- `[epoch-nanoseconds, offset-minutes]`, or in UTC the bare epoch-nanoseconds (the smallest representation, DXN.md §2.2).
- T_DATETIME_US : mixed = 211
- T_DECIMAL : mixed = 4
- T_DURATION : mixed = 220
- The duration bitmask, its seventh field nanoseconds.
- T_DURATION_US : mixed = 212
- T_EXTRA : mixed = 215
- A struct's extra fields: only ever its last item (DXN.md §2.3).
- T_IPV4 : mixed = 52
- T_IPV6 : mixed = 54
- T_KEYWORD : mixed = 202
- T_LOCAL_DATETIME : mixed = 217
- A local date-time: nanoseconds since 1970-01-01T00:00:00 on the wall clock (DXN.md §2.3, Jan, 2026-10-20).
- T_OBJECTID : mixed = 221
- BSON's ObjectId: 12 raw bytes (Jan, 2026-10-20).
- T_ORDERED : mixed = 205
- T_RATIONAL : mixed = 30
- T_REGEX : mixed = 213
- T_SET : mixed = 206
- T_SHAREABLE : mixed = 28
- T_SHARED_REF : mixed = 29
- T_SORTED_SET : mixed = 207
- T_STRINGREF : mixed = 25
- T_STRINGREF_NAMESPACE : mixed = 256
- T_STRUCT : mixed = 208
- T_SYMBOL : mixed = 201
- T_TIME : mixed = 218
- Nanoseconds since midnight.
- T_TIME_US : mixed = 210
- T_TIMESTAMP_US : mixed = 1
- DXN 0.2's UTC timestamp, epoch microseconds: read, never written (DXN.md §2.3, Jan, 2026-10-20).
- T_TUPLE : mixed = 203
- T_URI : mixed = 32
- T_UUID : mixed = 37
Methods
- durationBitmask() : int
- durationFieldsPresent() : array<int, string>
- regexByteToFlags() : array<string, bool>
- regexFlagsToByte() : int
- __construct() : mixed
Constants
DURATION_FIELDS
Duration bitmask field order, low bit first (`DXN.md` §2.3).
public
mixed
DURATION_FIELDS
= ['years', 'months', 'weeks', 'days', 'hours', 'minutes', 'nanoseconds']
REGEX_FLAG_BITS
Regex flags byte bit order, low bit first (`DXN.md` §2.3).
public
mixed
REGEX_FLAG_BITS
= ['i', 'm', 's', 'u', 'x', 'f', 'r']
T_ARRAY
public
mixed
T_ARRAY
= 204
T_BIGNUM_NEG
public
mixed
T_BIGNUM_NEG
= 3
T_BIGNUM_POS
public
mixed
T_BIGNUM_POS
= 2
T_BITS
A run of bits that is not whole bytes: `[bytes, count]` (DXN.md §2.3).
public
mixed
T_BITS
= 216
T_CHAR
public
mixed
T_CHAR
= 200
T_CUSTOM
public
mixed
T_CUSTOM
= 214
T_DATE
public
mixed
T_DATE
= 209
T_DATETIME
`[epoch-nanoseconds, offset-minutes]`, or in UTC the bare epoch-nanoseconds (the smallest representation, DXN.md §2.2).
public
mixed
T_DATETIME
= 219
T_DATETIME_US
public
mixed
T_DATETIME_US
= 211
T_DECIMAL
public
mixed
T_DECIMAL
= 4
T_DURATION
The duration bitmask, its seventh field nanoseconds.
public
mixed
T_DURATION
= 220
T_DURATION_US
public
mixed
T_DURATION_US
= 212
T_EXTRA
A struct's extra fields: only ever its last item (DXN.md §2.3).
public
mixed
T_EXTRA
= 215
T_IPV4
public
mixed
T_IPV4
= 52
T_IPV6
public
mixed
T_IPV6
= 54
T_KEYWORD
public
mixed
T_KEYWORD
= 202
T_LOCAL_DATETIME
A local date-time: nanoseconds since 1970-01-01T00:00:00 on the wall clock (DXN.md §2.3, Jan, 2026-10-20).
public
mixed
T_LOCAL_DATETIME
= 217
T_OBJECTID
BSON's ObjectId: 12 raw bytes (Jan, 2026-10-20).
public
mixed
T_OBJECTID
= 221
T_ORDERED
public
mixed
T_ORDERED
= 205
T_RATIONAL
public
mixed
T_RATIONAL
= 30
T_REGEX
public
mixed
T_REGEX
= 213
T_SET
public
mixed
T_SET
= 206
T_SHAREABLE
public
mixed
T_SHAREABLE
= 28
T_SHARED_REF
public
mixed
T_SHARED_REF
= 29
T_SORTED_SET
public
mixed
T_SORTED_SET
= 207
T_STRINGREF
public
mixed
T_STRINGREF
= 25
T_STRINGREF_NAMESPACE
public
mixed
T_STRINGREF_NAMESPACE
= 256
T_STRUCT
public
mixed
T_STRUCT
= 208
T_SYMBOL
public
mixed
T_SYMBOL
= 201
T_TIME
Nanoseconds since midnight.
public
mixed
T_TIME
= 218
T_TIME_US
public
mixed
T_TIME_US
= 210
T_TIMESTAMP_US
DXN 0.2's UTC timestamp, epoch microseconds: read, never written (DXN.md §2.3, Jan, 2026-10-20).
public
mixed
T_TIMESTAMP_US
= 1
T_TUPLE
public
mixed
T_TUPLE
= 203
T_URI
public
mixed
T_URI
= 32
T_UUID
public
mixed
T_UUID
= 37
Methods
durationBitmask()
public
static durationBitmask(DXNDuration $d) : int
Parameters
- $d : DXNDuration
Return values
intdurationFieldsPresent()
public
static durationFieldsPresent(int $bitmask) : array<int, string>
Parameters
- $bitmask : int
Return values
array<int, string>regexByteToFlags()
public
static regexByteToFlags(int $byte) : array<string, bool>
Parameters
- $byte : int
Return values
array<string, bool>regexFlagsToByte()
public
static regexFlagsToByte(array<string, bool> $flags) : int
Parameters
- $flags : array<string, bool>
Return values
int__construct()
private
__construct() : mixed