Enum Heading 

#[non_exhaustive]
pub enum Heading {
    Page,
    Section,
    Subsection,
}

How far down the heading tree a title sits.

Three, and only the three that are actually headings. The bands those used to be filed with (goingson’s .page-header, Balanced Breakfast’s .header and .detail-header) are arrangement, not type, and live at Region::Band. One of them contains no text at all.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Page

Names the whole screen. One per screen.

Section

Names a block within the screen.

Subsection

Names a sub-block inside an already-named section.

Trait Implementations

impl Clone for Heading

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 Heading

impl Debug for Heading

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

Formats the value using the given formatter.

impl Eq for Heading

impl Hash for Heading

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Heading

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Heading