Struct VacantEntry 

pub struct VacantEntry<'a>(/* private fields */);

A view into a vacant entry in particular Headers for a given HeaderName.

It is part of the Entry enum.

Implementations

impl<'a> VacantEntry<'a>

pub fn name(&self) -> HeaderName<'_>

Retrieves the HeaderName for this Entry.

pub fn insert(self, values: impl Into<HeaderValues>) -> &'a mut HeaderValues

Replace this VacantEntry with a value, returning a mutable reference to that value.

Trait Implementations

impl Debug for VacantEntry<'_>

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

Formats the value using the given formatter.