typewit::type_fn

Struct GRef

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pub struct GRef<'a>(/* private fields */);
Expand description

Type-level function from T to &'a T

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impl<'a> GRef<'a>

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pub const NEW: Self = _

Make a value of this type-level function

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impl<'a, T: 'a + ?Sized> RevTypeFn<&'a T> for GRef<'a>

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type Arg = T

The argument to this function with Ret as the return value.
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impl<'a, T: 'a + ?Sized> TypeFn<T> for GRef<'a>

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type Output = &'a T

The return value of the function
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const TYPE_FN_ASSERTS: () = ()

Helper constant for adding asserts in the TypeFn impl;

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impl<'a> Freeze for GRef<'a>

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impl<'a> RefUnwindSafe for GRef<'a>

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impl<'a> Send for GRef<'a>

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impl<'a> Sync for GRef<'a>

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impl<'a> Unpin for GRef<'a>

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impl<'a> UnwindSafe for GRef<'a>

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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, W> HasTypeWitness<W> for T
where W: MakeTypeWitness<Arg = T>, T: ?Sized,

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const WITNESS: W = const WITNESS: W = W::MAKE;

A constant of the type witness
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impl<T> Identity for T
where T: ?Sized,

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const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = const TYPE_EQ: TypeEq<Self, Self::Type> = TypeEq::NEW;

Proof that Self is the same type as Self::Type, provides methods for casting between Self and Self::Type.
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type Type = T

The same type as Self, used to emulate type equality bounds (T == U) with associated type equality constraints (T: Identity<Type = U>).
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impl<F, A, R> InjTypeFn<A> for F
where F: RevTypeFn<R, Output = R, Arg = A> + TypeFn<A>, A: ?Sized, R: ?Sized,

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type Ret = R

Return value of the function
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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, 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.