Struct Parse 

pub struct Parse { /* private fields */ }

What came out of parsing a file.

Implementations

impl Parse

pub fn syntax(&self) -> Arc<SyntaxNode>

The tree, always present — a file that fails to parse still has one, with its bad ranges as error nodes.

pub fn green(&self) -> &Arc<GreenNode>

The green root.

pub fn diagnostics(&self) -> &[Diagnostic]

Everything wrong with the input, in source order.

pub fn has_errors(&self) -> bool

Whether anything was wrong.

pub fn prepend_diagnostics(&mut self, diagnostics: Vec<Diagnostic>)

Put diagnostics ahead of the ones already there.

For the preprocessor’s, which explain most of what the parser then makes of the result.

pub fn text(&self) -> String

Reconstruct the source. Equals the input byte for byte, whether or not it parsed. Spec §2.2.

pub fn source_span(&self, tree: Span) -> Span

A range of the tree as a range of the source the parser read.

The same range for a file parsed with parse, whose tree is the file byte for byte. Not for parse_preprocessed: the expanded text puts one space between two tokens and the tree holds the tokens without it, and a pragma’s text stands after the token it leads there and before it here. A node’s range in the tree — what lowering records — is an offset into neither file nor expanded text until it passes through this.

Each end is moved by the piece of text that holds it; an end past the last piece stays at the end of that piece.

Trait Implementations

impl Clone for Parse

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Parse

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

Formats the value using the given formatter.