Struct mz_compute::render::reduce::monoids::ReductionMonoidRegion

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pub struct ReductionMonoidRegion {
    inner: <Row as Columnation>::InnerRegion,
}
Expand description

Region for ReductionMonoid. This region is special in that it stores both enum variants in the same backing region. Alternatively, it could store it in two regions, but we select the former for simplicity reasons.

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§inner: <Row as Columnation>::InnerRegion

Trait Implementations§

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impl Default for ReductionMonoidRegion

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fn default() -> ReductionMonoidRegion

Returns the “default value” for a type. Read more
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impl Region for ReductionMonoidRegion

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type Item = ReductionMonoid

The type of item the region contains.
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unsafe fn copy(&mut self, item: &Self::Item) -> Self::Item

Add a new element to the region. Read more
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fn clear(&mut self)

Retain allocations but discard their contents. Read more
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fn reserve_items<'a, I>(&mut self, items: I)
where Self: 'a, I: Iterator<Item = &'a Self::Item> + Clone,

Ensure that the region can absorb items without reallocation.
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fn reserve_regions<'a, I>(&mut self, regions: I)
where Self: 'a, I: Iterator<Item = &'a Self> + Clone,

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fn heap_size(&self, callback: impl FnMut(usize, usize))

Determine this region’s memory used and reserved capacity in bytes. Read more
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fn with_capacity_items<'a, I>(items: I) -> Self
where Self: 'a, I: Iterator<Item = &'a Self::Item> + Clone,

Allocate an instance of Self that can absorb items without reallocation.
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fn with_capacity_regions<'a, I>(regions: I) -> Self
where Self: 'a, I: Iterator<Item = &'a Self> + Clone,

Allocate an instance of Self that can absorb the items of regions without reallocation.

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