Struct layout_2013::floats::SpeculatedFloatPlacement

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pub struct SpeculatedFloatPlacement {
    pub left: Au,
    pub right: Au,
}
Expand description

The speculated inline sizes of floats flowing through or around a flow (depending on whether the flow is a block formatting context). These speculations are always upper bounds; the actual inline sizes might be less. Note that this implies that a speculated value of zero is a guarantee that there will be no floats on that side.

This is used for two purposes: (a) determining whether we can lay out blocks in parallel; (b) guessing the inline-sizes of block formatting contexts in an effort to lay them out in parallel.

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§left: Au

The estimated inline size (an upper bound) of the left floats flowing through this flow.

§right: Au

The estimated inline size (an upper bound) of the right floats flowing through this flow.

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impl SpeculatedFloatPlacement

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pub fn zero() -> SpeculatedFloatPlacement

Returns a SpeculatedFloatPlacement objects with both left and right speculated inline sizes initialized to zero.

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pub fn compute_floats_in(&mut self, flow: &mut dyn Flow)

Given the speculated inline size of the floats out for the inorder predecessor of this flow, computes the speculated inline size of the floats flowing in.

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pub fn compute_floats_out(&mut self, flow: &mut dyn Flow)

Given the speculated inline size of the floats out for this flow’s last child, computes the speculated inline size of the floats out for this flow.

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pub fn compute_floats_in_for_first_child( parent_flow: &mut dyn Flow, ) -> SpeculatedFloatPlacement

Given a flow, computes the speculated inline size of the floats in of its first child.

Trait Implementations§

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impl Clone for SpeculatedFloatPlacement

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fn clone(&self) -> SpeculatedFloatPlacement

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SpeculatedFloatPlacement

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Copy for SpeculatedFloatPlacement

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