Enum MultiValue 

pub enum MultiValue<T> {
    Auto,
    Initial,
    Inherit,
    Exact(T),
}

A value that can be Auto, Initial, Inherit, or an explicit value. This preserves CSS cascade semantics better than Option.

Variants

Auto

CSS ‘auto’ keyword

Initial

CSS ‘initial’ keyword - use initial value

Inherit

CSS ‘inherit’ keyword - inherit from parent

Exact(T)

Explicit value (e.g., “10px”, “50%”)

Implementations

impl<T> MultiValue<T>

pub fn is_auto(&self) -> bool

Returns true if this is an Auto value

pub fn is_exact(&self) -> bool

Returns true if this is an explicit value

pub fn exact(self) -> Option<T>

Gets the exact value if present

pub fn unwrap_or(self, default: T) -> T

Gets the exact value or returns the provided default

pub fn unwrap_or_default(self) -> T

where T: Default,

Gets the exact value or returns T::default()

pub fn map<U, F>(self, f: F) -> MultiValue<U>

where F: FnOnce(T) -> U,

Maps the inner value if Exact, otherwise returns self unchanged

impl MultiValue<LayoutOverflow>

pub fn is_clipped(&self) -> bool

Returns true if this overflow value causes content to be clipped. This includes Hidden, Clip, Auto, and Scroll (all values except Visible).

pub fn is_scroll(&self) -> bool

pub fn is_auto_overflow(&self) -> bool

pub fn is_hidden(&self) -> bool

pub fn is_hidden_or_clip(&self) -> bool

pub fn is_scroll_explicit(&self) -> bool

pub fn is_visible_or_clip(&self) -> bool

impl MultiValue<LayoutPosition>

pub fn is_absolute_or_fixed(&self) -> bool

impl MultiValue<LayoutFloat>

pub fn is_none(&self) -> bool

Trait Implementations

impl<T: Clone> Clone for MultiValue<T>

fn clone(&self) -> MultiValue<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for MultiValue<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for MultiValue<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: PartialEq> PartialEq for MultiValue<T>

fn eq(&self, other: &MultiValue<T>) -> 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<T: Copy> Copy for MultiValue<T>

impl<T> StructuralPartialEq for MultiValue<T>