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Access

yo_resp::dispatch::keyspec

Struct Access 

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pub struct Access(/* private fields */);
Expand description

What a caller has to be allowed to do with a key.

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impl Access

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pub const READ: Access

The value is read, so a caller needs read permission over the key.

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pub const WRITE: Access

The value is changed, added or taken away.

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pub const BOTH: Access

Both, which is what an incomplete command is treated as needing.

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pub const NONE: Access

Neither, which is a key a command only asks about.

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pub const fn covers(self, other: Access) -> bool

Whether everything other asks for is in here.

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pub const fn and(self, other: Access) -> Access

Both together.

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pub const fn is_none(self) -> bool

Whether this asks for nothing at all.

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pub const fn bits(self) -> u8

The two bits on their own, for something that has to store a lot of these and cannot spare a byte each.

The ACL is the caller. A user can carry hundreds of key patterns and every one of them holds a copy of this, so it is packed in beside the glob rather than kept as a type.

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pub const fn from_bits(bits: u8) -> Access

The other half of Access::bits.

Anything outside the two bits is dropped rather than trusted, so a caller that has stored the byte somewhere and read back rubbish gets a permission that is too small rather than one that is too large.

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impl Clone for Access

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fn clone(&self) -> Access

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 Access

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impl Debug for Access

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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 Default for Access

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fn default() -> Access

Returns the “default value” for a type. Read more
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impl Eq for Access

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impl PartialEq for Access

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fn eq(&self, other: &Access) -> 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 Access

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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<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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> MaybeSend for T

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impl<T> MaybeSync for T

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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 = !

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

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.