Struct CompactLayoutCache 

pub struct CompactLayoutCache {
    pub tier1_enums: Vec<u64>,
    pub tier2_dims: Vec<CompactNodeProps>,
    pub tier2b_text: Vec<CompactTextProps>,
    pub tier3_overflow: Vec<Option<Box<CompactOverflowProps>>>,
}

Three-tier compact layout property cache.

Allocated once per restyle, indexed by node index (same as NodeId). Provides O(1) array-indexed access to all layout properties.

Fields

tier1_enums: Vec<u64>

Tier 1: ALL enum properties bitpacked into u64 per node (8 B/node)

tier2_dims: Vec<CompactNodeProps>

Tier 2: Numeric dimensions per node (64 B/node)

tier2b_text: Vec<CompactTextProps>

Tier 2b: Text/IFC properties per node (24 B/node)

tier3_overflow: Vec<Option<Box<CompactOverflowProps>>>

Tier 3: Overflow map for rare/complex properties (8 B/node, usually None)

Implementations

impl CompactLayoutCache

pub fn empty() -> Self

Create an empty cache (no nodes).

pub fn with_capacity(node_count: usize) -> Self

Create a cache pre-allocated for node_count nodes, filled with defaults.

pub fn node_count(&self) -> usize

Number of nodes in this cache.

pub fn get_display(&self, node_idx: usize) -> LayoutDisplay

pub fn get_position(&self, node_idx: usize) -> LayoutPosition

pub fn get_float(&self, node_idx: usize) -> LayoutFloat

pub fn get_overflow_x(&self, node_idx: usize) -> LayoutOverflow

pub fn get_overflow_y(&self, node_idx: usize) -> LayoutOverflow

pub fn get_box_sizing(&self, node_idx: usize) -> LayoutBoxSizing

pub fn get_flex_direction(&self, node_idx: usize) -> LayoutFlexDirection

pub fn get_flex_wrap(&self, node_idx: usize) -> LayoutFlexWrap

pub fn get_justify_content(&self, node_idx: usize) -> LayoutJustifyContent

pub fn get_align_items(&self, node_idx: usize) -> LayoutAlignItems

pub fn get_align_content(&self, node_idx: usize) -> LayoutAlignContent

pub fn get_writing_mode(&self, node_idx: usize) -> LayoutWritingMode

pub fn get_clear(&self, node_idx: usize) -> LayoutClear

pub fn get_font_weight(&self, node_idx: usize) -> StyleFontWeight

pub fn get_font_style(&self, node_idx: usize) -> StyleFontStyle

pub fn get_text_align(&self, node_idx: usize) -> StyleTextAlign

pub fn get_visibility(&self, node_idx: usize) -> StyleVisibility

pub fn get_white_space(&self, node_idx: usize) -> StyleWhiteSpace

pub fn get_direction(&self, node_idx: usize) -> StyleDirection

pub fn get_vertical_align(&self, node_idx: usize) -> StyleVerticalAlign

pub fn get_border_collapse(&self, node_idx: usize) -> StyleBorderCollapse

pub fn get_width_raw(&self, node_idx: usize) -> u32

Get width as encoded u32 (use decode_pixel_value_u32 or check sentinel).

pub fn get_height_raw(&self, node_idx: usize) -> u32

pub fn get_min_width_raw(&self, node_idx: usize) -> u32

pub fn get_max_width_raw(&self, node_idx: usize) -> u32

pub fn get_min_height_raw(&self, node_idx: usize) -> u32

pub fn get_max_height_raw(&self, node_idx: usize) -> u32

pub fn get_font_size_raw(&self, node_idx: usize) -> u32

pub fn get_flex_basis_raw(&self, node_idx: usize) -> u32

pub fn get_padding_top(&self, node_idx: usize) -> Option<f32>

Get padding-top as resolved px. Returns None if sentinel (needs slow path).

pub fn get_padding_right(&self, node_idx: usize) -> Option<f32>

pub fn get_padding_bottom(&self, node_idx: usize) -> Option<f32>

pub fn get_padding_left(&self, node_idx: usize) -> Option<f32>

pub fn get_margin_top(&self, node_idx: usize) -> Option<f32>

pub fn get_margin_right(&self, node_idx: usize) -> Option<f32>

pub fn get_margin_bottom(&self, node_idx: usize) -> Option<f32>

pub fn get_margin_left(&self, node_idx: usize) -> Option<f32>

pub fn is_margin_top_auto(&self, node_idx: usize) -> bool

Check if margin is Auto (important for centering logic).

pub fn is_margin_right_auto(&self, node_idx: usize) -> bool

pub fn is_margin_bottom_auto(&self, node_idx: usize) -> bool

pub fn is_margin_left_auto(&self, node_idx: usize) -> bool

pub fn get_border_top_width(&self, node_idx: usize) -> Option<f32>

pub fn get_border_right_width(&self, node_idx: usize) -> Option<f32>

pub fn get_border_bottom_width(&self, node_idx: usize) -> Option<f32>

pub fn get_border_left_width(&self, node_idx: usize) -> Option<f32>

pub fn get_padding_top_raw(&self, node_idx: usize) -> i16

pub fn get_padding_right_raw(&self, node_idx: usize) -> i16

pub fn get_padding_bottom_raw(&self, node_idx: usize) -> i16

pub fn get_padding_left_raw(&self, node_idx: usize) -> i16

pub fn get_margin_top_raw(&self, node_idx: usize) -> i16

pub fn get_margin_right_raw(&self, node_idx: usize) -> i16

pub fn get_margin_bottom_raw(&self, node_idx: usize) -> i16

pub fn get_margin_left_raw(&self, node_idx: usize) -> i16

pub fn get_border_top_width_raw(&self, node_idx: usize) -> i16

pub fn get_border_right_width_raw(&self, node_idx: usize) -> i16

pub fn get_border_bottom_width_raw(&self, node_idx: usize) -> i16

pub fn get_border_left_width_raw(&self, node_idx: usize) -> i16

pub fn get_top(&self, node_idx: usize) -> i16

pub fn get_right(&self, node_idx: usize) -> i16

pub fn get_bottom(&self, node_idx: usize) -> i16

pub fn get_left(&self, node_idx: usize) -> i16

pub fn get_flex_grow(&self, node_idx: usize) -> Option<f32>

pub fn get_flex_shrink(&self, node_idx: usize) -> Option<f32>

pub fn get_z_index(&self, node_idx: usize) -> i16

pub fn get_border_top_color_raw(&self, node_idx: usize) -> u32

pub fn get_border_right_color_raw(&self, node_idx: usize) -> u32

pub fn get_border_bottom_color_raw(&self, node_idx: usize) -> u32

pub fn get_border_left_color_raw(&self, node_idx: usize) -> u32

pub fn get_border_styles_packed(&self, node_idx: usize) -> u16

pub fn get_border_top_style(&self, node_idx: usize) -> BorderStyle

pub fn get_border_right_style(&self, node_idx: usize) -> BorderStyle

pub fn get_border_bottom_style(&self, node_idx: usize) -> BorderStyle

pub fn get_border_left_style(&self, node_idx: usize) -> BorderStyle

pub fn get_border_spacing_h_raw(&self, node_idx: usize) -> i16

pub fn get_border_spacing_v_raw(&self, node_idx: usize) -> i16

pub fn get_tab_size_raw(&self, node_idx: usize) -> i16

pub fn get_text_color_raw(&self, node_idx: usize) -> u32

pub fn get_font_family_hash(&self, node_idx: usize) -> u64

pub fn get_line_height(&self, node_idx: usize) -> Option<f32>

pub fn get_letter_spacing(&self, node_idx: usize) -> Option<f32>

pub fn get_word_spacing(&self, node_idx: usize) -> Option<f32>

pub fn get_text_indent(&self, node_idx: usize) -> Option<f32>

pub fn get_overflow_prop( &self, node_idx: usize, prop: &CssPropertyType, ) -> Option<&CssProperty>

Get overflow properties for a node (usually None).

pub fn set_overflow_prop( &mut self, node_idx: usize, prop: CssPropertyType, value: CssProperty, )

Insert a property into the Tier 3 overflow map for a node.

Trait Implementations

impl Clone for CompactLayoutCache

fn clone(&self) -> CompactLayoutCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CompactLayoutCache

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

Formats the value using the given formatter.

impl PartialEq for CompactLayoutCache

fn eq(&self, other: &CompactLayoutCache) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CompactLayoutCache