Enum NodeKind 

#[non_exhaustive]
pub enum NodeKind<'a> {
    Tree {
        data: &'a str,
    },
    Token(&'a Token),
    None,
    Foreign(&'a ForeignValue),
}

What a Cursor points at. Provisional: the deferred visitor classes build on this, so #[non_exhaustive].

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Tree

A rule node; data is its resolved display name.

Fields

data: &'a str

Token(&'a Token)

A leaf token.

None

A maybe_placeholders hole (Lark’s None child).

Foreign(&'a ForeignValue)

A transform-produced opaque host value.

Trait Implementations

impl<'a> Debug for NodeKind<'a>

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

Formats the value using the given formatter.