Enum vstd::raw_ptr::Metadata

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pub enum Metadata {
    Thin,
    Length(usize),
    Dyn(DynMetadata),
}
Expand description

Metadata

For thin pointers (i.e., when T: Sized), the metadata is () For slices, str, and dyn types this is nontrivial See: https://doc.rust-lang.org/std/ptr/trait.Pointee.html

TODO: This will eventually be replaced with <T as Pointee>::Metadata.

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Thin

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Length(usize)

Length in bytes for a str; length in items for a

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Dyn(DynMetadata)

For ‘dyn’ types (not yet supported)

Implementations§

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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, 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.