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ProfilePresence

Enum ProfilePresence 

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pub enum ProfilePresence {
    Absent,
    Materialized,
    Known,
}
Expand description

Whether a profile exists for an adapter (spec §8).

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Absent

Nothing has been created for this profile yet.

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Materialized

Every path the adapter declares exists on disk.

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Known

The profile can be identified from the agent’s own profile mechanism, without anything of ours existing on disk.

Reserved, not dead. No adapter constructs this today and the SP3 review flagged it as unused code, which it is — but it is unclaimed rather than obsolete. Spec §8 defines it normatively for an agent that manages named profiles itself, where a profile is real because the agent says so and agent-profile may have created no directory at all. Every adapter shipped so far is directory-based, so the distinction has not yet had a case to express.

Deleting it was considered in SP4 and rejected: the variant costs one line, while removing it would make the first native-profile adapter a change to a public enum — and in the meantime presence() would have to report such a profile as Absent, which is a false statement about a profile the agent itself lists.

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impl Clone for ProfilePresence

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fn clone(&self) -> ProfilePresence

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for ProfilePresence

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impl Debug for ProfilePresence

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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 Eq for ProfilePresence

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impl PartialEq for ProfilePresence

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for ProfilePresence

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Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where 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 T
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: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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, U> Into<U> for T
where 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> ToOwned for T
where 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 T
where 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 T
where 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.