Enum AlignmentSafety 

#[repr(u8)]
pub enum AlignmentSafety {
    Default = 0,
    Unsafe = 1,
    Safe = 2,
}

The overflow-position modifier per CSS Box Alignment §4.3.

Safe falls back to start-edge alignment when the alignment subject would overflow the alignment container, so the start of the content stays visible. Unsafe keeps the requested alignment even when that causes overflow at the start edge. Default (no overflow-position keyword specified) behaves as Unsafe, except for absolutely positioned boxes whose alignment is instead adjusted to minimize overflow per CSS Box Alignment §4.4.1.2.

CSS only defines safe / unsafe against the position values start, end, flex-start, flex-end, center. The struct shape does not enforce that constraint at the type level — the parser rejects invalid combinations, and the compute pass treats Safe paired with a non-position keyword (Stretch, Baseline, Space*) the same as Unsafe.

Variants

Default = 0

No overflow-position keyword specified. Behaves as Unsafe, except for absolutely positioned boxes, whose alignment is adjusted to minimize overflow of their containing block.

Unsafe = 1

Keeps the requested alignment even when the subject overflows the alignment container at the start edge.

Safe = 2

Falls back to the start edge when the subject would overflow, to avoid data loss.

Trait Implementations

impl Clone for AlignmentSafety

fn clone(&self) -> AlignmentSafety

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AlignmentSafety

impl Debug for AlignmentSafety

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

Formats the value using the given formatter.

impl Default for AlignmentSafety

fn default() -> AlignmentSafety

Returns the “default value” for a type.

impl Eq for AlignmentSafety

impl PartialEq for AlignmentSafety

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AlignmentSafety