pub enum Extensions {
    All,
    Given {
        tree_cache: bool,
        end_of_index_entry: bool,
    },
    None,
}
Expand description

A way to specify which of the optional extensions to write.

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All

Writes all available optional extensions to avoid losing any information.

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Given

Fields

§tree_cache: bool

Write the tree-cache extension, if present.

§end_of_index_entry: bool

Write the end-of-index-entry extension.

Only write the given optional extensions, with each extension being marked by a boolean flag.

Note: mandatory extensions

Mandatory extensions, like sdir or other lower-case ones, may not be configured here as they need to be present or absent depending on the state of the index itself and for it to be valid.

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None

Write no optional extension at all for what should be the smallest possible index

Implementations§

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impl Extensions

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pub fn should_write(&self, signature: Signature) -> Option<Signature>

Returns Some(signature) if it should be written out.

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impl Clone for Extensions

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fn clone(&self) -> Extensions

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 Extensions

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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 Extensions

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fn default() -> Extensions

Returns the “default value” for a type. Read more
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impl Copy for Extensions

Auto Trait Implementations§

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> 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.