Struct imap_codec::message::Tag

pub struct Tag<'a>(_);

4.5. NIL

The special form “NIL” represents the non-existence of a particular data item that is represented as a string or parenthesized list, as distinct from the empty string “” or the empty parenthesized list ().

Note: NIL is never used for any data item which takes the form of an atom. For example, a mailbox name of “NIL” is a mailbox named NIL as opposed to a non-existent mailbox name. This is because mailbox uses “astring” syntax which is an atom or a string. Conversely, an addr-name of NIL is a non-existent personal name, because addr-name uses “nstring” syntax which is NIL or a string, but never an atom.

Implementations

impl<'a> Tag<'a>

pub fn verify(value: impl AsRef<[u8]>) -> Result<(), TagError>

pub fn inner(&self) -> &str

pub fn new_unchecked(inner: Cow<'a, str>) -> Tag<'a>

Trait Implementations

impl<'a> AsRef<str> for Tag<'a>

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a> Clone for Tag<'a>

fn clone(&self) -> Tag<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Tag<'a>

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

Formats the value using the given formatter.

impl<'a> Encode for Tag<'a>

fn encode(&self, writer: &mut impl Write) -> Result<(), Error>

fn encode_detached(&self) -> Result<Vec<u8, Global>, Error>

impl<'a> Hash for Tag<'a>

fn hash<__H>(&self, state: &mut __H)where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a> PartialEq<Tag<'a>> for Tag<'a>

fn eq(&self, other: &Tag<'a>) -> 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<'a> TryFrom<&'a [u8]> for Tag<'a>

type Error = TagError

The type returned in the event of a conversion error.

fn try_from( value: &'a [u8] ) -> Result<Tag<'a>, <Tag<'a> as TryFrom<&'a [u8]>>::Error>

Performs the conversion.

impl<'a> TryFrom<&'a str> for Tag<'a>

type Error = TagError

The type returned in the event of a conversion error.

fn try_from( value: &'a str ) -> Result<Tag<'a>, <Tag<'a> as TryFrom<&'a str>>::Error>

Performs the conversion.

impl<'a> TryFrom<String> for Tag<'a>

type Error = TagError

The type returned in the event of a conversion error.

fn try_from( value: String ) -> Result<Tag<'a>, <Tag<'a> as TryFrom<String>>::Error>

Performs the conversion.

impl<'a> TryFrom<Vec<u8, Global>> for Tag<'a>

type Error = TagError

The type returned in the event of a conversion error.

fn try_from( value: Vec<u8, Global> ) -> Result<Tag<'a>, <Tag<'a> as TryFrom<Vec<u8, Global>>>::Error>

Performs the conversion.

impl<'a> Eq for Tag<'a>

impl<'a> StructuralEq for Tag<'a>

impl<'a> StructuralPartialEq for Tag<'a>