Enum trust_dns_proto::rr::domain::usage::UserUsage

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pub enum UserUsage {
    Normal,
    Loopback,
    LinkLocal,
    NxDomain,
}
Expand description

Users:

Are human users expected to recognize these names as special and use them differently? In what way?

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Normal

Users are free to use these names as they would any other reverse-mapping names. However, since there is no central authority responsible for use of private addresses, users SHOULD be aware that these names are likely to yield different results on different networks.

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Loopback

Users are free to use localhost names as they would any other domain names. Users may assume that IPv4 and IPv6 address queries for localhost names will always resolve to the respective IP loopback address.

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LinkLocal

Multi-cast link-local usage

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NxDomain

Users are free to use “invalid” names as they would any other domain names. Users MAY assume that queries for “invalid” names will always return NXDOMAIN responses.

Trait Implementations§

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impl Clone for UserUsage

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fn clone(&self) -> UserUsage

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl PartialEq for UserUsage

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

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

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impl Eq for UserUsage

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impl StructuralPartialEq for UserUsage

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Copy,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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type Error = Infallible

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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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