Struct GreenLeaf 

pub struct GreenLeaf<L: Language> {
    pub kind: L::TokenType,
    pub length: u32,
    pub metadata: Option<NonZeroU32>,
}

A green leaf kind that stores only kind and length.

Leaves are the terminal elements of the green tree, representing individual tokens in the source code.

Fields

kind: L::TokenType

The token kind/category.

length: u32

The byte length of the token text.

metadata: Option<NonZeroU32>

Optional index into the metadata store for provenance information.

This is used to track where a token came from in complex transformations or multi-file sources.

Implementations

impl<L: Language> GreenLeaf<L>

pub fn new(kind: L::TokenType, len: u32) -> Self

Creates a new green leaf kind.

Arguments

• kind - The token type.
• len - The length of the token in bytes.

pub fn with_metadata( kind: L::TokenType, len: u32, metadata: Option<NonZeroU32>, ) -> Self

Creates a new green leaf kind with provenance metadata.

Arguments

• kind - The token type.
• len - The length of the token in bytes.
• metadata - The metadata index.

pub fn kind(&self) -> L::TokenType

Returns the kind of this leaf.

pub fn length(&self) -> u32

Returns the length of this leaf in bytes.

Trait Implementations

impl<L: Language> Clone for GreenLeaf<L>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<L: Language> Debug for GreenLeaf<L>

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

Formats the value using the given formatter.

impl<L: Language> Hash for GreenLeaf<L>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<L: Language> PartialEq for GreenLeaf<L>

fn eq(&self, other: &Self) -> 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<L: Language> Copy for GreenLeaf<L>

impl<L: Language> Eq for GreenLeaf<L>