Enum ResourceType 

#[non_exhaustive]
pub enum ResourceType {
    A,
    AAAA,
    Ptr,
    Srv,
    Txt,
    Nsec,
    Hinfo,
    Cname,
    Any,
    Unknown(u16),
}

Resource record type code.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

A

IPv4 address (1).

AAAA

IPv6 address (28).

Ptr

Domain name pointer (12).

Srv

Server location (33).

Txt

Text record (16).

Nsec

Next secure (47, used for negative responses in RFC 6762 §6.1).

Hinfo

Host info (13, rarely used).

Cname

Canonical name alias (5).

Any

Wildcard query type (255).

Unknown(u16)

Lossless escape for unknown rtypes.

Implementations

impl ResourceType

pub const fn is_a(&self) -> bool

Returns true if this value is of type A. Returns false otherwise

pub const fn is_aaaa(&self) -> bool

Returns true if this value is of type AAAA. Returns false otherwise

pub const fn is_ptr(&self) -> bool

Returns true if this value is of type Ptr. Returns false otherwise

pub const fn is_srv(&self) -> bool

Returns true if this value is of type Srv. Returns false otherwise

pub const fn is_txt(&self) -> bool

Returns true if this value is of type Txt. Returns false otherwise

pub const fn is_nsec(&self) -> bool

Returns true if this value is of type Nsec. Returns false otherwise

pub const fn is_hinfo(&self) -> bool

Returns true if this value is of type Hinfo. Returns false otherwise

pub const fn is_cname(&self) -> bool

Returns true if this value is of type Cname. Returns false otherwise

pub const fn is_any(&self) -> bool

Returns true if this value is of type Any. Returns false otherwise

pub const fn is_unknown(&self) -> bool

Returns true if this value is of type Unknown. Returns false otherwise

impl ResourceType

pub fn unwrap_a(self)

Unwraps this value to the ResourceType::A variant. Panics if this value is of any other type.

pub fn unwrap_aaaa(self)

Unwraps this value to the ResourceType::AAAA variant. Panics if this value is of any other type.

pub fn unwrap_ptr(self)

Unwraps this value to the ResourceType::Ptr variant. Panics if this value is of any other type.

pub fn unwrap_srv(self)

Unwraps this value to the ResourceType::Srv variant. Panics if this value is of any other type.

pub fn unwrap_txt(self)

Unwraps this value to the ResourceType::Txt variant. Panics if this value is of any other type.

pub fn unwrap_nsec(self)

Unwraps this value to the ResourceType::Nsec variant. Panics if this value is of any other type.

pub fn unwrap_hinfo(self)

Unwraps this value to the ResourceType::Hinfo variant. Panics if this value is of any other type.

pub fn unwrap_cname(self)

Unwraps this value to the ResourceType::Cname variant. Panics if this value is of any other type.

pub fn unwrap_any(self)

Unwraps this value to the ResourceType::Any variant. Panics if this value is of any other type.

pub fn unwrap_unknown(self) -> u16

Unwraps this value to the ResourceType::Unknown variant. Panics if this value is of any other type.

impl ResourceType

pub fn try_unwrap_a(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::A variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_aaaa(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::AAAA variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_ptr(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Ptr variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_srv(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Srv variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_txt(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Txt variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_nsec(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Nsec variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_hinfo(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Hinfo variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_cname(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Cname variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_any(self) -> Result<(), TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Any variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_unknown(self) -> Result<u16, TryUnwrapError<Self>>

Attempts to unwrap this value to the ResourceType::Unknown variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

impl ResourceType

pub const fn as_str(&self) -> &'static str

Canonical lowercase slug for this resource type.

pub const fn to_u16(self) -> u16

Returns the wire-format u16 value.

pub const fn from_u16(v: u16) -> Self

Reconstructs a ResourceType from a wire-format u16. Always succeeds — unknown values land in Unknown(v).

Trait Implementations

impl Clone for ResourceType

fn clone(&self) -> ResourceType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ResourceType

impl Debug for ResourceType

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

Formats the value using the given formatter.

impl Display for ResourceType

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

Formats the value using the given formatter.

impl Eq for ResourceType

impl Hash for ResourceType

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

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 Ord for ResourceType

fn cmp(&self, other: &ResourceType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ResourceType

fn eq(&self, other: &ResourceType) -> 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 PartialOrd for ResourceType

fn partial_cmp(&self, other: &ResourceType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ResourceType