Trait TreeNode 

pub trait TreeNode:
    Clone
    + Debug
    + PartialEq
    + Eq
    + Hash {
    type Token: TreeToken;

    // Required methods
    fn parent(&self) -> Option<Self>;
    fn kind(&self) -> SyntaxKind;
    fn text(&self) -> impl Display;
    fn span(&self) -> Span;
    fn children(&self) -> impl Iterator<Item = Self>;
    fn children_with_tokens(
        &self,
    ) -> impl Iterator<Item = NodeOrToken<Self, Self::Token>>;
    fn last_token(&self) -> Option<Self::Token>;
    fn descendants(&self) -> impl Iterator<Item = Self>;
    fn ancestors(&self) -> impl Iterator<Item = Self>;
}

A trait that abstracts the underlying representation of a syntax tree node.

The default node type is SyntaxNode for all AST nodes.

Required Associated Types

type Token: TreeToken

The associated token type for the tree node.

Required Methods

fn parent(&self) -> Option<Self>

Gets the parent node of the node.

Returns None if the node is a root.

fn kind(&self) -> SyntaxKind

Gets the syntax kind of the node.

fn text(&self) -> impl Display

Gets the text of the node.

Node text is not contiguous, so the returned value implements Display.

fn span(&self) -> Span

Gets the span of the node.

fn children(&self) -> impl Iterator<Item = Self>

Gets the children nodes of the node.

fn children_with_tokens( &self, ) -> impl Iterator<Item = NodeOrToken<Self, Self::Token>>

Gets all the children of the node, including tokens.

fn last_token(&self) -> Option<Self::Token>

Gets the last token of the node.

fn descendants(&self) -> impl Iterator<Item = Self>

Gets the node descendants of the node.

fn ancestors(&self) -> impl Iterator<Item = Self>

Gets the ancestors of the node.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl TreeNode for SyntaxNode

type Token = SyntaxToken<WorkflowDescriptionLanguage>