Enum rustc_target::abi::PointerKind

source · 
pub enum PointerKind {
    SharedMutable,
    Frozen,
    UniqueBorrowed,
    UniqueBorrowedPinned,
    UniqueOwned,
}

Variants§

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SharedMutable

Most general case, we know no restrictions to tell LLVM.

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Frozen

&T where T contains no UnsafeCell, is dereferenceable, noalias and readonly.

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UniqueBorrowed

&mut T which is dereferenceable and noalias but not readonly.

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UniqueBorrowedPinned

&mut !Unpin, which is dereferenceable but neither noalias nor readonly.

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UniqueOwned

Box<T>, which is noalias (even on return types, unlike the above) but neither readonly nor dereferenceable.

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

  • SharedMutable: 0 bytes
  • Frozen: 0 bytes
  • UniqueBorrowed: 0 bytes
  • UniqueBorrowedPinned: 0 bytes
  • UniqueOwned: 0 bytes