Enum AttrValue 

pub enum AttrValue {
    Bool(bool),
    Int(i64),
    Float(f64),
    Str(String),
    List(Vec<Self>),
    Length(f64),
    Bytes(Arc<[u8]>),
}

Attribute value carried on a semantic Node.

Examples

use mos_core::AttrValue;

let value = AttrValue::Str("intro".to_owned());

assert_eq!(value, AttrValue::Str("intro".to_owned()));

Variants

Bool(bool)

Int(i64)

Float(f64)

Str(String)

List(Vec<Self>)

Length(f64)

A length already resolved to PDF points. The parser carries unit-tagged literals (mm, pt, em); the lowerer converts them to a single canonical scalar so layout never has to know about units.

Bytes(Arc<[u8]>)

Opaque binary payload — currently used to carry decoded raster image pixels (RGB8) onto an NodeKind::Image node so the PDF backend can emit them as an Image XObject without re-reading the source file.

Stored as Arc<[u8]> so a node carrying decoded pixels is cheap to clone (e.g. across cache boundaries or when the same image would otherwise be duplicated through the document graph). The layout engine still dedups by resolved path, so most documents hold one buffer per image regardless; the Arc is insurance against accidental copies on the eval → layout boundary.

Trait Implementations

impl Clone for AttrValue

fn clone(&self) -> AttrValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AttrValue

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

Formats the value using the given formatter.

impl PartialEq for AttrValue

fn eq(&self, other: &AttrValue) -> 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 AttrValue