Struct SyntaxTree 

pub struct SyntaxTree(/* private fields */);

Represents an untyped concrete syntax tree.

Implementations

impl SyntaxTree

pub fn parse(source: &str) -> (SyntaxTree, Vec<Diagnostic>)

Parses WDL source to produce a syntax tree.

A syntax tree is always returned, even for invalid WDL documents.

Additionally, the list of diagnostics encountered during the parse is returned; if the list is empty, the tree is syntactically correct.

However, additional validation is required to ensure the source is a valid WDL document.

Example

let (tree, diagnostics) = SyntaxTree::parse("version 1.1");
assert!(diagnostics.is_empty());
println!("{tree:#?}");

pub fn root(&self) -> &SyntaxNode<WorkflowDescriptionLanguage>

Gets the root syntax node of the tree.

pub fn green(&self) -> Cow<'_, GreenNodeData>

Gets a copy of the underlying root green node for the tree.

pub fn into_syntax(self) -> SyntaxNode<WorkflowDescriptionLanguage>

Converts the tree into a syntax node.

Trait Implementations

impl Clone for SyntaxTree

fn clone(&self) -> SyntaxTree

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SyntaxTree

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

Formats the value using the given formatter.

impl Display for SyntaxTree

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

Formats the value using the given formatter.

impl Hash for SyntaxTree

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

where __H: Hasher,

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 PartialEq for SyntaxTree

fn eq(&self, other: &SyntaxTree) -> 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 Eq for SyntaxTree

impl StructuralPartialEq for SyntaxTree