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Headers

Struct Headers 

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pub struct Headers { /* private fields */ }
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A received header block (request or response headers, or trailers).

Pseudo-header fields are reached through Headers::method, Headers::path and so on; Headers::iter yields the regular fields in order. Names are lower case.

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impl Headers

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pub fn method(&self) -> Option<&[u8]>

:method.

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pub fn scheme(&self) -> Option<&[u8]>

:scheme.

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pub fn authority(&self) -> Option<&[u8]>

:authority (when absent, a host field may carry the authority: see Headers::get).

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pub fn path(&self) -> Option<&[u8]>

:path.

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pub fn protocol(&self) -> Option<&[u8]>

:protocol of an extended CONNECT request (RFC 8441), for example websocket; only accepted when crate::Config::enable_connect_protocol is set.

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pub fn status(&self) -> Option<u16>

:status as a number.

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pub fn content_length(&self) -> Option<u64>

The content-length value, when present.

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pub fn len(&self) -> usize

Number of regular fields.

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pub fn is_empty(&self) -> bool

True when there are no regular fields.

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pub fn iter(&self) -> impl Iterator<Item = (&[u8], &[u8])> + '_

Regular fields (name, value) in order.

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pub fn get(&self, name: &[u8]) -> Option<&[u8]>

The first regular field named name (lower case).

Trait Implementations§

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impl Clone for Headers

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fn clone(&self) -> Self

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 Debug for Headers

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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 Headers

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fn default() -> Self

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

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> 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> 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.