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Struct typesize::ptr::Ref

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pub struct Ref<'a, T: ?Sized>(pub &'a T);
Expand description

A wrapper around &'a T to implement TypeSize.

This does not consider the size of the inner T, simply the size of the pointer.

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§0: &'a T

Trait Implementations§

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impl<'a, T: Clone + ?Sized> Clone for Ref<'a, T>

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fn clone(&self) -> Ref<'a, 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<'a, T: ?Sized> Deref for Ref<'a, T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<'a, T: Hash + ?Sized> Hash for Ref<'a, T>

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fn hash<__H: Hasher>(&self, state: &mut __H)

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<'a, T: Ord + ?Sized> Ord for Ref<'a, T>

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fn cmp(&self, other: &Ref<'a, T>) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl<'a, T: PartialEq + ?Sized> PartialEq for Ref<'a, T>

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fn eq(&self, other: &Ref<'a, 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<'a, T: PartialOrd + ?Sized> PartialOrd for Ref<'a, T>

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fn partial_cmp(&self, other: &Ref<'a, T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<'a, T: ?Sized> TypeSize for Ref<'a, T>

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fn extra_size(&self) -> usize

The number of bytes more than the std::mem::size_of that this value is using.
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fn get_size(&self) -> usize

The total number of bytes that this type is using, both direct (std::mem::size_of) and indirect (behind allocations) Read more
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fn get_collection_item_count(&self) -> Option<usize>

Returns information about the number of items this type is holding, if it is a collection.
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fn get_size_details(&self) -> Vec<Field>

Returns detailed information about the current value’s field sizes. Read more
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impl<'a, T: Copy + ?Sized> Copy for Ref<'a, T>

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impl<'a, T: Eq + ?Sized> Eq for Ref<'a, T>

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impl<'a, T: ?Sized> StructuralEq for Ref<'a, T>

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impl<'a, T: ?Sized> StructuralPartialEq for Ref<'a, T>

Auto Trait Implementations§

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impl<'a, T: ?Sized> RefUnwindSafe for Ref<'a, T>where T: RefUnwindSafe,

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impl<'a, T: ?Sized> Send for Ref<'a, T>where T: Sync,

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impl<'a, T: ?Sized> Sync for Ref<'a, T>where T: Sync,

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impl<'a, T: ?Sized> Unpin for Ref<'a, T>

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impl<'a, T: ?Sized> UnwindSafe for Ref<'a, T>where T: RefUnwindSafe,

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Qwhere 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<Q, K> Equivalent<K> for Qwhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.