Struct cbor_diag::Tag

pub struct Tag(pub u64);

A semantic tag for a CBOR data item.

See RFC 7049 § 2.4: Table 3 and the CBOR Tags IANA Registry

Tuple Fields

0: u64

Implementations

impl Tag

pub const DATETIME: Tag = _

A “Standard date/time string”; must only be applied to a text string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.1 for more details on how to interpret the string.

Defined in RFC 7049 § 2.4: Table 3.

pub const EPOCH_DATETIME: Tag = _

An “Epoch-based date/time”; must only be applied to an unsigned integer, negative integer or floating point data item.

See RFC 7049 § 2.4.1 for more details on how to interpret the value.

Defined in RFC 7049 § 2.4: Table 3.

pub const POSITIVE_BIGNUM: Tag = _

A “positive bignum”; must only be applied to a byte string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.2 for more details on how to interpret the bytes.

Defined in RFC 7049 § 2.4: Table 3.

pub const NEGATIVE_BIGNUM: Tag = _

A “negative bignum”; must only be applied to a byte string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.2 for more details on how to interpret the bytes.

Defined in RFC 7049 § 2.4: Table 3.

pub const DECIMAL_FRACTION: Tag = _

A “decimal fraction”; must only be applied to an array containing exactly two data items, the first must be either a unsigned integer or negative integer, the second can be either of those or additionally a positive or negative bignum.

See RFC 7049 § 2.4.3 for more details on how to interpret the values.

Defined in RFC 7049 § 2.4: Table 3.

pub const BIGFLOAT: Tag = _

A “bigfloat”; must only be applied to an array containing exactly two data items, the first must be either a unsigned integer or negative integer, the second can be either of those or additionally a positive or negative bignum.

See RFC 7049 § 2.4.3 for more details on how to interpret the values.

Defined in RFC 7049 § 2.4: Table 3.

pub const ENCODED_BASE64URL: Tag = _

Sets the expected encoding of any byte strings contained in the data item to be “base64url”; can be applied to any sort of data item.

See RFC 7049 § 2.4.4.2 for more details on how the expected encoding is applied.

Defined in RFC 7049 § 2.4: Table 3.

pub const ENCODED_BASE64: Tag = _

Sets the expected encoding of any byte strings contained in the data item to be “base64”; can be applied to any sort of data item.

See RFC 7049 § 2.4.4.2 for more details on how the expected encoding is applied.

Defined in RFC 7049 § 2.4: Table 3.

pub const ENCODED_BASE16: Tag = _

Sets the expected encoding of any byte strings contained in the data item to be “base16”; can be applied to any sort of data item.

See RFC 7049 § 2.4.4.2 for more details on how the expected encoding is applied.

Defined in RFC 7049 § 2.4: Table 3.

pub const ENCODED_CBOR: Tag = _

Marks this item as being an encoded CBOR data item; must only be applied to a byte string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.4.1 for more details on what this means.

Defined in RFC 7049 § 2.4: Table 3.

pub const SHAREABLE: Tag = _

Marks this item as being potentially shared and referenced by a later Tag::SHARED_REF; can be applied to any sort of data item.

See http://cbor.schmorp.de/value-sharing for more details on what this means.

pub const SHARED_REF: Tag = _

Marks this item as being a reference to a previous Tag::SHAREABLE item; can only be applied to an unsigned integer date item.

See http://cbor.schmorp.de/value-sharing for more details on what this means.

pub const URI: Tag = _

Marks this item as being a valid URI; must only be applied to a text string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.4.3 for more details on what this means.

Defined in RFC 7049 § 2.4: Table 3.

pub const BASE64URL: Tag = _

Marks this item as being a base64url encoded string; must only be applied to a text string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.4.3 for more details on what this means.

Defined in RFC 7049 § 2.4: Table 3.

pub const BASE64: Tag = _

Marks this item as being a base64 encoded string; must only be applied to a text string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.4.3 for more details on what this means.

Defined in RFC 7049 § 2.4: Table 3.

pub const REGEX: Tag = _

Marks this item as being a regex; must only be applied to a text string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.4.3 for more details on what this means.

Defined in RFC 7049 § 2.4: Table 3.

pub const MIME: Tag = _

Marks this item as being a MIME message; must only be applied to a text string (or the indefinite variant of) data item.

See RFC 7049 § 2.4.4.3 for more details on what this means.

Defined in RFC 7049 § 2.4: Table 3.

pub const UUID: Tag = _

Marks this item as being a binary UUID; must only be applied to a byte string (or the indefinite variant of) data item.

See the spec for more details on what this means.

Defined in non-RFC specification.

pub const ENCODED_CBOR_SEQ: Tag = _

Marks this item as being an encoded CBOR sequence; must only be applied to a byte string (or the indefinite variant of) data item.

See RFC 8742 for more details on what this means.

Defined in draft-bormann-cbor-notable-tags § 2.1.

pub const IPV4: Tag = _

Marks this item as being an IPv4 address and/or prefix; must only be applied to a four-byte byte string (or the indefinite variant of) or 2-element array data item.

Defined in RFC 9164.

pub const IPV6: Tag = _

Marks this item as being an IPv6 address and/or prefix; must only be applied to a sixteen-byte byte string (or the indefinite variant of) or 2/3-element array data item.

Defined in RFC 9164.

pub const TYPED_ARRAY_U8: Tag = _

Mark this item as being an encoding of an array of u8 values; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_U16_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of u16 values in big endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_U32_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of u32 values in big endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_U64_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of u64 values in big endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_U8_CLAMPED: Tag = _

Mark this item as being an encoding of an array of u8 values (with JS specific “clamping”); must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_U16_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of u16 values in little endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_U32_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of u32 values in little endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_U64_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of u64 values in little endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_I8: Tag = _

Mark this item as being an encoding of an array of i8 values in twos-complement encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_I16_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of i16 values in big endian twos-complement encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_I32_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of i32 values in big endian twos-complement encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_I64_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of i64 values in big endian twos-complement encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_I16_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of i16 values in little endian twos-complement encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_I32_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of i32 values in little endian twos-complement encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_I64_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of i64 values in little endian twos-complement encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F16_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f16 values in big endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F32_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f32 values in big endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F64_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f64 values in big endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F128_BIG_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f128 values in big endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F16_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f16 values in little endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F32_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f32 values in little endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F64_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f64 values in little endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const TYPED_ARRAY_F128_LITTLE_ENDIAN: Tag = _

Mark this item as being an encoding of an array of f128 values in little endian encoding; must only be applied to a bytes string (or the [indefinite variant][DataItem::IndefiniteByteString) of) data item.

Defined in RFC 8746.

pub const EPOCH_DATE: Tag = _

Number of days since the epoch date 1970-01-01; must only be applied to an unsigned integer or negative integer data item.

Defined in RFC 8943.

pub const NETWORK_ADDRESS: Tag = _

Marks this item as being a Network Address (IPv4 or IPv6 or MAC Address); must only be applied to a byte string (or the indefinite variant of) data item.

See the spec for more details on what this means.

Defined in non-RFC specification.

[RFC 9164][] recommends usage of Tag::IPV4 or Tag::IPV6 instead where possible.

[RFC 9164]

pub const DATE: Tag = _

A “Standard date string”; must only be applied to a text string (or the indefinite variant of) data item.

Defined in RFC 8943, uses format from RFC 3339.

pub const SELF_DESCRIBE_CBOR: Tag = _

Marks this item as being CBOR, a no-op; can be applied to any type of data item.

See RFC 7049 § 2.4.5 for more details on why this is useful.

Defined in RFC 7049 § 2.4: Table 3.

Trait Implementations

impl Clone for Tag

fn clone(&self) -> Tag

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Tag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<Tag> for Tag

fn eq(&self, other: &Tag) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Tag

impl Eq for Tag

impl StructuralEq for Tag

impl StructuralPartialEq for Tag