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Struct std::mem::Discriminant

pub struct Discriminant<T>(/* private fields */);

Opaque type representing the discriminant of an enum.

See the discriminant function in this module for more information.

Trait Implementations

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impl<T> Clone for Discriminant<T>
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fn clone(&self) -> Discriminant<T>
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<T> Debug for Discriminant<T>
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fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
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impl<T> Hash for Discriminant<T>
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fn hash<H>(&self, state: &mut H)
where
    H: Hasher,
Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where
    H: Hasher,
    Self: Sized,
Feeds a slice of this type into the given Hasher. Read more
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impl<T> PartialEq for Discriminant<T>
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fn eq(&self, rhs: &Discriminant<T>) -> 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<T> Copy for Discriminant<T>
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impl<T> Eq for Discriminant<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for Discriminant<T>
where
    <T as DiscriminantKind>::Discriminant: RefUnwindSafe,
impl<T> Send for Discriminant<T>
impl<T> Sync for Discriminant<T>
impl<T> Unpin for Discriminant<T>
impl<T> UnwindSafe for Discriminant<T>
where
    <T as DiscriminantKind>::Discriminant: UnwindSafe,

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,
 
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>,
 
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>,
 
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.

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/mem/struct.Discriminant.html