Struct difft::parse::syntax::SyntaxInfo

pub(crate) struct SyntaxInfo<'a> {
    previous_sibling: Cell<Option<&'a Syntax<'a>>>,
    next_sibling: Cell<Option<&'a Syntax<'a>>>,
    prev: Cell<Option<&'a Syntax<'a>>>,
    parent: Cell<Option<&'a Syntax<'a>>>,
    num_ancestors: Cell<u32>,
    pub(crate) num_after: Cell<usize>,
    unique_id: Cell<NonZeroU32>,
    content_id: Cell<u32>,
    content_is_unique: Cell<bool>,
}

Fields that are common to both Syntax::List and Syntax::Atom.

Fields

previous_sibling: Cell<Option<&'a Syntax<'a>>>

The previous node with the same parent as this one.

next_sibling: Cell<Option<&'a Syntax<'a>>>

The next node with the same parent as this one.

prev: Cell<Option<&'a Syntax<'a>>>

The syntax node that occurs before this one, in a depth-first tree traversal.

parent: Cell<Option<&'a Syntax<'a>>>

The parent syntax node, if present.

num_ancestors: Cell<u32>

The number of nodes that are ancestors of this one.

num_after: Cell<usize>

unique_id: Cell<NonZeroU32>

A number that uniquely identifies this syntax node.

content_id: Cell<u32>

A number that uniquely identifies the content of this syntax node. This may be the same as nodes on the other side of the diff, or nodes at different positions.

Values are sequential, not hashes. Collisions never occur.

content_is_unique: Cell<bool>

Is this the only node with this content? Ignores nodes on the other side.

Implementations

impl<'a> SyntaxInfo<'a>

pub(crate) fn new() -> Self

Trait Implementations

impl<'a> Default for SyntaxInfo<'a>

fn default() -> Self

Returns the “default value” for a type.