pages_and_pages

Trait AnyPages

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pub trait AnyPages: Sealed {
    // Required methods
    fn start(&self) -> usize;
    fn end(&self) -> usize;
    fn accessibility(&self) -> Accessibility;
    fn as_any(&self) -> &dyn Any;
    fn as_any_mut(&mut self) -> &mut dyn Any;
    fn into_pages_type(self) -> PagesType;
    fn allocation(&self) -> &Allocation;
    fn as_ptr(&self) -> *const u8;

    // Provided methods
    fn pages(&self) -> usize { ... }
    fn len_bytes(&self) -> usize { ... }
}
Expand description

Common trait of all types of pages Note: This trait is sealed as assumptions are made about the implementors that allow properties to be safe. It would not make sense to create your own pages object which implements this trait.

Required Methods§

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fn start(&self) -> usize

Gets the start index of the page of the underlying allocation which this object references

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fn end(&self) -> usize

Gets the end index of the page of the underlying allocation which this object references

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fn accessibility(&self) -> Accessibility

Gets the Accessibility of this pages object

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fn as_any(&self) -> &dyn Any

Gets this pages object as a &dyn Any object for reference downcasting

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fn as_any_mut(&mut self) -> &mut dyn Any

Gets this pages object as a &mut dyn Any object for reference downcasting

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fn into_pages_type(self) -> PagesType

Gets this pages object as a PagesType enum to allow pattern matching and unwrapping on accessibility

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fn allocation(&self) -> &Allocation

Gets an immutable reference to the underlying Allocation

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fn as_ptr(&self) -> *const u8

Returns a raw pointer to the page(s)

The caller must ensure the data is readable/writable before trying to access the data

Provided Methods§

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fn pages(&self) -> usize

Gets the number of pages this pages object references

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fn len_bytes(&self) -> usize

Gets the number of bytes this pages object references. This is implemented as AnyPages::pages multiplied by the page size

Implementations§

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impl dyn AnyPages

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pub fn downcast_ref<T: AnyPages + 'static>(&self) -> Option<&T>

Downcasts &dyn AnyPages into &T: AnyPages

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pub fn downcast_mut<T: AnyPages + 'static>(&mut self) -> Option<&mut T>

Downcasts &mut dyn AnyPages into &mut T: AnyPages

Implementors§