Enum HostnameError 

pub enum HostnameError {
    Empty,
    TooLong(usize),
    LabelTooLong {
        label: usize,
        len: usize,
    },
    InvalidLabelStart(char),
    InvalidLabelEnd(char),
    InvalidChar(char),
    EmptyLabel,
}

Available on crate feature net only.

Error type for hostname validation.

Variants

Empty

Empty hostname

TooLong(usize)

Hostname exceeds maximum length of 253 characters

LabelTooLong

Label exceeds maximum length of 63 characters

Fields

label: usize

Label index

len: usize

Label length

InvalidLabelStart(char)

Label starts with invalid character

InvalidLabelEnd(char)

Label ends with invalid character

InvalidChar(char)

Invalid character in hostname

EmptyLabel

Empty label (consecutive dots or leading/trailing dots)

Trait Implementations

impl Clone for HostnameError

fn clone(&self) -> HostnameError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HostnameError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HostnameError

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for HostnameError

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

Formats the value using the given formatter.

impl Error for HostnameError

Available on crate feature std only.

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for HostnameError

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for HostnameError

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for HostnameError

impl Eq for HostnameError

impl StructuralPartialEq for HostnameError