pub struct RelayFlags(_);
Expand description

A set of recognized directory flags on a single relay.

These flags come from a consensus directory document, and are used to describe what the authorities believe about the relay. If the document contained any flags that we didn’t recognize, they are not listed in this type.

The bit values used to represent the flags have no meaning; they may change between releases of this crate. Relying on their values may void your semver guarantees.

Implementations§

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impl RelayFlags

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pub const AUTHORITY: Self = _

Is this a directory authority?

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pub const BAD_EXIT: Self = _

Is this relay marked as a bad exit?

Bad exits can be used as intermediate relays, but not to deliver traffic.

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pub const EXIT: Self = _

Is this relay marked as an exit for weighting purposes?

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pub const FAST: Self = _

Is this relay considered “fast” above a certain threshold?

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pub const GUARD: Self = _

Is this relay suitable for use as a guard relay?

Clients choose their their initial relays from among the set of Guard relays.

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pub const HSDIR: Self = _

Does this relay participate on the onion service directory ring?

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pub const MIDDLE_ONLY: Self = _

Set if this relay is considered “middle only”, not suitable to run as an exit or guard relay.

Note that this flag is only used by authorities as part of the voting process; clients do not and should not act based on whether it is set.

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pub const NO_ED_CONSENSUS: Self = _

If set, there is no consensus for the ed25519 key for this relay.

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pub const STABLE: Self = _

Is this relay considered “stable” enough for long-lived circuits?

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pub const STALE_DESC: Self = _

Set if the authorities are requesting a fresh descriptor for this relay.

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pub const RUNNING: Self = _

Set if this relay is currently running.

This flag can appear in votes, but in consensuses, every relay is assumed to be running.

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pub const VALID: Self = _

Set if this relay is considered “valid” – allowed to be on the network.

This flag can appear in votes, but in consensuses, every relay is assumed to be valid.

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pub const V2DIR: Self = _

Set if this relay supports a currently recognized version of the directory protocol.

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impl RelayFlags

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pub const fn empty() -> Self

Returns an empty set of flags.

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pub const fn all() -> Self

Returns the set containing all flags.

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pub const fn bits(&self) -> u16

Returns the raw value of the flags currently stored.

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pub const fn from_bits(bits: u16) -> Option<Self>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

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pub const fn from_bits_truncate(bits: u16) -> Self

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

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pub const fn from_bits_retain(bits: u16) -> Self

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

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pub fn from_name(name: &str) -> Option<Self>

Get the value for a flag from its stringified name.

Names are case-sensitive, so must correspond exactly to the identifier given to the flag.

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pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

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pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

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pub const fn intersects(&self, other: Self) -> bool

Returns true if there are flags common to both self and other.

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pub const fn contains(&self, other: Self) -> bool

Returns true if all of the flags in other are contained within self.

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pub fn insert(&mut self, other: Self)

Inserts the specified flags in-place.

This method is equivalent to union.

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pub fn remove(&mut self, other: Self)

Removes the specified flags in-place.

This method is equivalent to difference.

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pub fn toggle(&mut self, other: Self)

Toggles the specified flags in-place.

This method is equivalent to symmetric_difference.

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pub fn set(&mut self, other: Self, value: bool)

Inserts or removes the specified flags depending on the passed value.

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pub const fn intersection(self, other: Self) -> Self

Returns the intersection between the flags in self and other.

Calculating self bitwise and (&) other, including any bits that don’t correspond to a defined flag.

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pub const fn union(self, other: Self) -> Self

Returns the union of between the flags in self and other.

Calculates self bitwise or (|) other, including any bits that don’t correspond to a defined flag.

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pub const fn difference(self, other: Self) -> Self

Returns the difference between the flags in self and other.

Calculates self bitwise and (&!) the bitwise negation of other, including any bits that don’t correspond to a defined flag.

This method is not equivalent to a & !b when there are bits set that don’t correspond to a defined flag. The ! operator will unset any bits that don’t correspond to a flag, so they’ll always be unset by a &! b, but respected by a.difference(b).

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pub const fn symmetric_difference(self, other: Self) -> Self

Returns the symmetric difference between the flags in self and other.

Calculates self bitwise exclusive or (^) other, including any bits that don’t correspond to a defined flag.

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pub const fn complement(self) -> Self

Returns the complement of this set of flags.

Calculates the bitwise negation (!) of self, unsetting any bits that don’t correspond to a defined flag.

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impl RelayFlags

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pub const fn iter(&self) -> Iter<RelayFlags>

Iterate over enabled flag values.

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pub const fn iter_names(&self) -> IterNames<RelayFlags>

Iterate over enabled flag values with their stringified names.

Trait Implementations§

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impl Binary for RelayFlags

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

Formats the value using the given formatter.
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impl BitAnd<RelayFlags> for RelayFlags

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

Returns the intersection between the two sets of flags.

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type Output = RelayFlags

The resulting type after applying the & operator.
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impl BitAndAssign<RelayFlags> for RelayFlags

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fn bitand_assign(&mut self, other: Self)

Disables all flags disabled in the set.

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impl BitOr<RelayFlags> for RelayFlags

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fn bitor(self, other: RelayFlags) -> Self

Returns the union of the two sets of flags.

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type Output = RelayFlags

The resulting type after applying the | operator.
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impl BitOrAssign<RelayFlags> for RelayFlags

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fn bitor_assign(&mut self, other: Self)

Adds the set of flags.

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impl BitXor<RelayFlags> for RelayFlags

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

Returns the left flags, but with all the right flags toggled.

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type Output = RelayFlags

The resulting type after applying the ^ operator.
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impl BitXorAssign<RelayFlags> for RelayFlags

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fn bitxor_assign(&mut self, other: Self)

Toggles the set of flags.

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impl Clone for RelayFlags

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fn clone(&self) -> RelayFlags

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 Debug for RelayFlags

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

Formats the value using the given formatter. Read more
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impl Extend<RelayFlags> for RelayFlags

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fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator. Read more
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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
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impl Flags for RelayFlags

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const FLAGS: &'static [Flag<RelayFlags>] = _

The set of available flags and their names.
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type Bits = u16

The underlying storage type.
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fn bits(&self) -> u16

Returns the raw value of the flags currently stored.
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fn from_bits_retain(bits: u16) -> RelayFlags

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
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fn empty() -> Self

Returns an empty set of flags.
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fn all() -> Self

Returns the set containing all flags.
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fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag. Read more
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fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from underlying bit representation, dropping any bits that do not correspond to flags. Read more
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fn from_name(name: &str) -> Option<Self>

Get the flag for a particular name.
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fn iter(&self) -> Iter<Self>

Iterate over enabled flag values.
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fn iter_names(&self) -> IterNames<Self>

Iterate over the raw names and bits for enabled flag values.
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fn is_empty(&self) -> bool

Returns true if no flags are currently stored.
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fn is_all(&self) -> bool

Returns true if all flags are currently set.
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fn intersects(&self, other: Self) -> boolwhere Self: Sized,

Returns true if there are flags common to both self and other.
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fn contains(&self, other: Self) -> boolwhere Self: Sized,

Returns true if all of the flags in other are contained within self.
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fn insert(&mut self, other: Self)where Self: Sized,

Inserts the specified flags in-place. Read more
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fn remove(&mut self, other: Self)where Self: Sized,

Removes the specified flags in-place. Read more
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fn toggle(&mut self, other: Self)where Self: Sized,

Toggles the specified flags in-place. Read more
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fn set(&mut self, other: Self, value: bool)where Self: Sized,

Inserts or removes the specified flags depending on the passed value.
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fn intersection(self, other: Self) -> Self

Returns the intersection between the flags in self and other.
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fn union(self, other: Self) -> Self

Returns the union of between the flags in self and other.
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fn difference(self, other: Self) -> Self

Returns the difference between the flags in self and other.
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fn symmetric_difference(self, other: Self) -> Self

Returns the symmetric difference between the flags in self and other.
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fn complement(self) -> Self

Returns the complement of this set of flags.
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impl FromIterator<RelayFlags> for RelayFlags

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fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

Creates a value from an iterator. Read more
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impl FromStr for RelayFlags

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type Err = Infallible

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more
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impl IntoIterator for RelayFlags

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type Item = RelayFlags

The type of the elements being iterated over.
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type IntoIter = Iter<RelayFlags>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl LowerHex for RelayFlags

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

Formats the value using the given formatter.
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impl Not for RelayFlags

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fn not(self) -> Self

Returns the complement of this set of flags.

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type Output = RelayFlags

The resulting type after applying the ! operator.
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impl Octal for RelayFlags

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

Formats the value using the given formatter.
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impl PublicFlags for RelayFlags

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type Primitive = u16

The type of the underlying storage.
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type Internal = InternalBitFlags

The type of the internal field on the generated flags type.
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impl Sub<RelayFlags> for RelayFlags

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

Returns the set difference of the two sets of flags.

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type Output = RelayFlags

The resulting type after applying the - operator.
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impl SubAssign<RelayFlags> for RelayFlags

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fn sub_assign(&mut self, other: Self)

Disables all flags enabled in the set.

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impl UpperHex for RelayFlags

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

Formats the value using the given formatter.
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impl Copy for RelayFlags

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<B> BitFlags for Bwhere B: Flags,

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type Iter = Iter<B>

👎Deprecated: use the Flags trait instead
An iterator over enabled flags in an instance of the type.
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type IterNames = IterNames<B>

👎Deprecated: use the Flags trait instead
An iterator over the raw names and bits for enabled flags in an instance of the type.
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more