kvarn::prelude::utils::prelude::header

Enum Entry

pub enum Entry<'a, T>
where T: 'a,
{ Occupied(OccupiedEntry<'a, T>), Vacant(VacantEntry<'a, T>), }
Expand description

A view into a single location in a HeaderMap, which may be vacant or occupied.

Variants§

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Occupied(OccupiedEntry<'a, T>)

An occupied entry

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Vacant(VacantEntry<'a, T>)

A vacant entry

Implementations§

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impl<'a, T> Entry<'a, T>

pub fn or_insert(self, default: T) -> &'a mut T

Ensures a value is in the entry by inserting the default if empty.

Returns a mutable reference to the first</