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

A HeaderValue represents the right hand side of a single name: value pair.

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impl HeaderValue

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pub fn as_str(&self) -> Option<&str>

Returns this header value as a &str if it is utf8, None otherwise. If you need to convert non-utf8 bytes to a string somehow, match directly on the HeaderValue as an enum and handle that case. If you need a byte slice regardless of whether it’s utf8, use the AsRef<[u8]> impl

Trait Implementations§

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impl AsRef<[u8]> for HeaderValue

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fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for HeaderValue

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fn clone(&self) -> HeaderValue

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 HeaderValue

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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 Display for HeaderValue

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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 From<&'static [u8]> for HeaderValue

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fn from(b: &'static [u8]) -> Self

Converts to this type from the input type.
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impl From<&'static str> for HeaderValue

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fn from(s: &'static str) -> Self

Converts to this type from the input type.
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impl From<Cow<'static, str>> for HeaderValue

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fn from(c: Cow<'static, str>) -> Self

Converts to this type from the input type.
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impl From<HeaderValue> for HeaderValues

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fn from(v: HeaderValue) -> Self

Converts to this type from the input type.
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impl From<String> for HeaderValue

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fn from(s: String) -> Self

Converts to this type from the input type.
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impl From<Vec<u8>> for HeaderValue

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fn from(v: Vec<u8>) -> Self

Converts to this type from the input type.
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impl PartialEq<&[u8]> for HeaderValue

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fn eq(&self, other: &&[u8]) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<&String> for HeaderValue

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fn eq(&self, other: &&String) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<&str> for HeaderValue

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fn eq(&self, other: &&str) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<[u8]> for &HeaderValue

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fn eq(&self, other: &[u8]) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<[u8]> for HeaderValue

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fn eq(&self, other: &[u8]) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<String> for &HeaderValue

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fn eq(&self, other: &String) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<String> for HeaderValue

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fn eq(&self, other: &String) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<str> for &HeaderValue

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fn eq(&self, other: &str) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<str> for HeaderValue

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fn eq(&self, other: &str) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq for HeaderValue

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fn eq(&self, other: &HeaderValue) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for HeaderValue

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impl StructuralEq for HeaderValue

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impl StructuralPartialEq for HeaderValue

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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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.