Trait View

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pub trait View: Sized {
    type Item;
    type View: View;

    // Required methods
    fn region(&self) -> Region;
    fn get(&self, rank: usize) -> Option<Self::Item>;
    fn subset(&self, region: Region) -> Result<Self::View, ViewError>;
}

Expand description

A View is a collection of items in a space indexed by a Region.

Required Associated Types§

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type Item

The type of item in this view.

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type View: View

The type of sub-view produced by manipulating (e.g., slicing) this view.

Required Methods§

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fn region(&self) -> Region

The ranks contained in this view.

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fn get(&self, rank: usize) -> Option<Self::Item>

Retrieve the item corresponding to the given rank in the Region of this view. An implementation MUST return a value for all ranks defined in this view.

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fn subset(&self, region: Region) -> Result<Self::View, ViewError>

Subsets this view with the provided ranks. This is mainly used by combinators on Views themselves. The set of ranks passed in must be a subset of the ranks of the base view.