Struct layout_2013::floats::SpeculatedFloatPlacement

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

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.

Fields

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.

Implementations

impl SpeculatedFloatPlacement

pub fn zero() -> SpeculatedFloatPlacement

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

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.

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.

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

impl Clone for SpeculatedFloatPlacement

fn clone(&self) -> SpeculatedFloatPlacement

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SpeculatedFloatPlacement

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

Formats the value using the given formatter.

impl Copy for SpeculatedFloatPlacement