Document

Acknowledgement

Thanks to texter crate, text in any encoding is supported.

texter also provides an efficient way to update documents incrementally.

the Document struct has the following fields:

• texter: a texter struct that stores the document.
• tree: The tree-sitter syntax tree.

Creating a document

Document can be created using either the from_utf8 or from_texter methods of Root.

Updating a document

Use document.update() to process document changes:

update takes two parameters:

• The tree-sitter parser instance.
• A list of lsp_types::TextDocumentChangeEvent changes.

let change = lsp_types::TextDocumentContentChangeEvent {
    range: Some(lsp_types::Range {
        start: lsp_types::Position {
            line: 0,
            character: 0,
        },
        end: lsp_types::Position {
            line: 0,
            character: 0,
        },
    }),
    range_length: Some(26),
    text: "<div></div>".into(),
};

let edits = document
    .update(
        &mut root.parsers.tree_sitter.parser.write(),
        &vec![change],
    )
    .unwrap();