Struct SemanticsReach 

pub struct SemanticsReach {
    pub is_modal: bool,
    pub hidden: bool,
    pub merges_live_state: bool,
}

The semantics flags that decide how a node’s semantics reach the tree: which part of a window is live (SemanticsConfiguration::is_modal and SemanticsConfiguration::hidden), and whether a tree update may keep what the node reported last.

Fields

is_modal: bool

The subtree takes over the screen.

hidden: bool

The subtree is skipped by readers.

merges_live_state: bool

What the node merges can change without its semantics being invalidated, as a .semantics { } recorder reading live state can, so every tree update merges it again.

Implementations

impl SemanticsReach

pub fn merged_by( node: &(impl SemanticsNode + ?Sized), merges_live_state: bool, ) -> Self

The modal and hidden flags node merges into a fresh configuration, with whether what it merges can change without an invalidation.

pub fn union(self, other: Self) -> Self

Every flag of self and other.

Trait Implementations

impl Clone for SemanticsReach

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SemanticsReach

impl Debug for SemanticsReach

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

Formats the value using the given formatter.

impl Default for SemanticsReach

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SemanticsReach

impl PartialEq for SemanticsReach

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SemanticsReach