Struct Node

pub struct Node {
    pub error: bool,
    /* private fields */
}

A node in the token tree.

A node is tagged with a Kind, and includes any number of child nodes or tokens.

Fields

error: bool

true if an error was encountered in this node.

This is not recursive; it is only true for the direct parent of an error span.

Implementations

impl Node

pub fn iter_tokens(&self) -> impl Iterator<Item = &Token>

Iterate over tokens, descending into child nodes.

pub fn iter_children(&self) -> ChildIter<'_>

Iterate over this node’s direct children, without descending.

pub fn kind(&self) -> Kind

The Kind of the node

pub fn text_len(&self) -> usize

The total length of all tokens that are descendents of this node.

pub fn range(&self) -> Range<usize>

The range in the original source of this node.

Only correct if this node is accessed via a cursor.

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.

impl From<Node> for NodeOrToken

fn from(src: Node) -> NodeOrToken

Converts to this type from the input type.

impl Ord for Node

fn cmp(&self, other: &Node) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Node

fn eq(&self, other: &Node) -> 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 PartialOrd for Node

fn partial_cmp(&self, other: &Node) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Node

impl StructuralPartialEq for Node