core_extensions::phantom

Struct AndPhantomCov

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#[repr(transparent)]
pub struct AndPhantomCov<T>(pub PhantomData<fn() -> T>, pub T);
Available on crate feature phantom only.
Expand description

A pair of PhantomData<fn() -> T> and T. useful for infering the type of the value from a PhantomData.

§Example

use core_extensions::{AndPhantomCov, AsPhantomData};
 
use std::marker::PhantomData;
 
let foo = [0, 1, 2];
 
let mut bar = AndPhantomCov(foo.as_phantom_covariant(), Default::default()).1;
 
bar[0] = 3;
bar[1] = 5;
bar[2] = 8;
 
assert_eq!(bar[..], [3, 5, 8]);

Tuple Fields§

§0: PhantomData<fn() -> T>§1: T

Auto Trait Implementations§

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impl<T> Freeze for AndPhantomCov<T>
where T: Freeze,

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impl<T> RefUnwindSafe for AndPhantomCov<T>
where T: RefUnwindSafe,

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impl<T> Send for AndPhantomCov<T>
where T: Send,

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impl<T> Sync for AndPhantomCov<T>
where T: Sync,

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impl<T> Unpin for AndPhantomCov<T>
where T: Unpin,

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impl<T> UnwindSafe for AndPhantomCov<T>
where T: 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> AsPhantomData for T
where T: ?Sized,

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fn as_phantom(&self) -> PhantomData<Self>

Available on crate feature phantom only.
Gets a PhantomData<Self>. Read more
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fn as_phantom_covariant(&self) -> PhantomData<fn() -> Self>

Available on crate feature phantom only.
Gets a PhantomData<fn() -> Self>, a covariant PhantomData.
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fn as_phantom_contra(&self) -> PhantomData<fn(Self)>

Available on crate feature phantom only.
Gets a PhantomData<fn(Self)>, a contravariant PhantomData.
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fn as_phantom_invariant(&self) -> PhantomData<fn(Self) -> Self>

Available on crate feature phantom only.
Gets a PhantomData<fn(Self) -> Self>, an invariant PhantomData.
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const PHANTOM: PhantomData<Self> = PhantomData

Available on crate feature phantom only.
Gets a PhantomData<Self>. Read more
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const PHANTOM_COVARIANT: PhantomData<fn() -> Self> = PhantomData

Available on crate feature phantom only.
Constructs a PhantomData<fn() -> T>, a covariant PhantomData. Read more
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const PHANTOM_CONTRA: PhantomData<fn(Self)> = PhantomData

Available on crate feature phantom only.
Gets a PhantomData<fn(Self)>, a contravariant PhantomData. Read more
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const PHANTOM_INVARIANT: PhantomData<fn(Self) -> Self> = PhantomData

Available on crate feature phantom only.
Gets a PhantomData<fn(Self) -> Self>, an invariant PhantomData. 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> CallExt for T
where T: ?Sized,

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fn ref_call<P>(&self, params: P) -> Self::Returns
where Self: CallRef<P>,

Available on crate feature callable only.
For calling CallRef::ref_call_, with the ability to specify the types of the arguments.. Read more
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fn mut_call<P>(&mut self, params: P) -> Self::Returns
where Self: CallMut<P>,

Available on crate feature callable only.
For calling CallMut::mut_call_, with the ability to specify the types of the arguments.. Read more
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fn into_call<P>(self, params: P) -> Self::Returns
where Self: Sized + CallInto<P>,

Available on crate feature callable only.
For calling CallInto::into_call_, with the ability to specify the types of the arguments.. 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> SelfOps for T
where T: ?Sized,

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fn eq_id(&self, other: &Self) -> bool

Available on crate feature self_ops only.
Compares the address of self with the address of other. Read more
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fn piped<F, U>(self, f: F) -> U
where F: FnOnce(Self) -> U, Self: Sized,

Available on crate feature self_ops only.
Emulates the pipeline operator, allowing method syntax in more places. Read more
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fn piped_ref<'a, F, U>(&'a self, f: F) -> U
where F: FnOnce(&'a Self) -> U,

Available on crate feature self_ops only.
The same as piped except that the function takes &Self Useful for functions that take &Self instead of Self. Read more
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fn piped_mut<'a, F, U>(&'a mut self, f: F) -> U
where F: FnOnce(&'a mut Self) -> U,

Available on crate feature self_ops only.
The same as piped, except that the function takes &mut Self. Useful for functions that take &mut Self instead of Self.
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fn mutated<F>(self, f: F) -> Self
where F: FnOnce(&mut Self), Self: Sized,

Available on crate feature self_ops only.
Mutates self using a closure taking self by mutable reference, passing it along the method chain. Read more
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fn observe<F>(self, f: F) -> Self
where F: FnOnce(&Self), Self: Sized,

Available on crate feature self_ops only.
Observes the value of self, passing it along unmodified. Useful in long method chains. Read more
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fn into_<T>(self) -> T
where Self: Into<T>,

Available on crate feature self_ops only.
Performs a conversion with Into. using the turbofish .into_::<_>() syntax. Read more
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fn as_ref_<T: ?Sized>(&self) -> &T
where Self: AsRef<T>,

Available on crate feature self_ops only.
Performs a reference to reference conversion with AsRef, using the turbofish .as_ref_::<_>() syntax. Read more
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fn as_mut_<T: ?Sized>(&mut self) -> &mut T
where Self: AsMut<T>,

Available on crate feature self_ops only.
Performs a mutable reference to mutable reference conversion with AsMut, using the turbofish .as_mut_::<_>() syntax. Read more
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fn drop_(self)
where Self: Sized,

Available on crate feature self_ops only.
Drops self using method notation. Alternative to std::mem::drop. 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.
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impl<T> TypeIdentity for T
where T: ?Sized,

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type Type = T

Available on crate feature type_identity only.
This is always Self.
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fn into_type(self) -> Self::Type
where Self: Sized, Self::Type: Sized,

Available on crate feature type_identity only.
Converts a value back to the original type.
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fn as_type(&self) -> &Self::Type

Available on crate feature type_identity only.
Converts a reference back to the original type.
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fn as_type_mut(&mut self) -> &mut Self::Type

Available on crate feature type_identity only.
Converts a mutable reference back to the original type.
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fn into_type_box(self: Box<Self>) -> Box<Self::Type>

Available on crate features type_identity and alloc only.
Converts a box back to the original type.
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fn into_type_arc(self: Arc<Self>) -> Arc<Self::Type>

Available on crate features type_identity and alloc only.
Converts an Arc back to the original type. Read more
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fn into_type_rc(self: Rc<Self>) -> Rc<Self::Type>

Available on crate features type_identity and alloc only.
Converts an Rc back to the original type. Read more
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fn from_type(this: Self::Type) -> Self
where Self: Sized, Self::Type: Sized,

Available on crate feature type_identity only.
Converts a value back to the original type.
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fn from_type_ref(this: &Self::Type) -> &Self

Available on crate feature type_identity only.
Converts a reference back to the original type.
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fn from_type_mut(this: &mut Self::Type) -> &mut Self

Available on crate feature type_identity only.
Converts a mutable reference back to the original type.
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fn from_type_box(this: Box<Self::Type>) -> Box<Self>

Available on crate features type_identity and alloc only.
Converts a box back to the original type.
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fn from_type_arc(this: Arc<Self::Type>) -> Arc<Self>

Available on crate features type_identity and alloc only.
Converts an Arc back to the original type.
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fn from_type_rc(this: Rc<Self::Type>) -> Rc<Self>

Available on crate features type_identity and alloc only.
Converts an Rc back to the original type.