openidea/wit/hover.wit

package openidea:[email protected];

/// Optional export (world `plugin-hover`): Markdown added to the hover of
/// documents of the languages declared with the `hover` provider kind,
/// including languages the plugin doesn't contribute. It shows below the
/// language server's hover, under the edit-path budget.
interface hover-provider {
    use types.{position, range};

    /// The document hovered (the editor's text while it is open).
    record document {
        /// Absolute path.
        path: string,
        language: string,
        version: u64,
        text: string,
    }

    /// What the plugin adds to the hover.
    record hover-content {
        /// At most 64 KiB.
        markdown: string,
        /// The text the hover describes; used when the server names none.
        range: option<range>,
    }

    /// The hover at `at`, or `none` to add nothing.
    hover: func(doc: document, at: position) -> option<hover-content>;
}