Struct Node 

pub struct Node {
    pub id: NodeId,
    pub kind: NodeKind,
    pub span: SourceSpan,
    pub children: Vec<NodeId>,
    pub attributes: AttrMap,
    pub(crate) content_hash: ContentHash,
    pub(crate) style_id: StyleId,
}

A semantic document node (manifest §5.1).

Nodes are allocated only by Document::alloc / Document::alloc_child from a NodeSpec: the arena assigns the NodeId and owns the content_hash/style_id placeholders. Those two fields are pub(crate), which makes the struct literal unconstructible outside this crate, so no caller can fabricate a node with a fake id or a hand-set hash.

Examples

use std::path::PathBuf;

use mos_core::{Document, NodeKind, NodeSpec, SourceSpan};

let file = PathBuf::from("main.mos");
let mut doc = Document::new(file.clone());
let id = doc.alloc(NodeSpec::new(NodeKind::Paragraph, SourceSpan::placeholder(file)));

assert_eq!(doc.get(id).map(|node| &node.kind), Some(&NodeKind::Paragraph));

Fields

id: NodeId

kind: NodeKind

span: SourceSpan

children: Vec<NodeId>

attributes: AttrMap

content_hash: ContentHash

Hash-derived identity placeholder (manifest §5.1); set by the arena, always default until the MVP 5 cache work. pub(crate) to seal external construction.

style_id: StyleId

Resolved style slot placeholder; set by the arena, always default until styling lands. pub(crate) to seal external construction.

Implementations

impl Node

pub const fn content_hash(&self) -> ContentHash

The node’s content hash: a hash-derived identity placeholder (manifest §5.1), default until the MVP 5 cache work. Read-only: the arena owns this field.

pub const fn style_id(&self) -> StyleId

The node’s resolved style slot: a placeholder, default until styling lands. Read-only: the arena owns this field.

Trait Implementations

impl Clone for Node

fn clone(&self) -> Node

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Node

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

Formats the value using the given formatter.