Method try_throw_new_completion

src/completion/handler.rs:1144–1170

Try to offer Throwable-only class completions after `throw new`. Restricts to Throwable descendants only — no constants or functions. Returns `None` when the cursor is not in a `throw new` context or when no completions could be produced.

(
        &self,
        content: &str,
        position: Position,
        ctx: &FileContext,
        uri: &str,
    )

    /// Returns `None` when the cursor is not in a `throw new` context or
    /// when no completions could be produced.
    fn try_throw_new_completion(
        &self,
        content: &str,
        position: Position,
        ctx: &FileContext,
        uri: &str,
    ) -> Option<CompletionResponse> {
        let partial = Self::extract_partial_class_name(content, position)?;
        if !Self::is_throw_new_context(content, position) {
            return None;
        }
        let (class_items, class_incomplete) =
            self.build_catch_class_name_completions(ctx, &partial, content, true, position, uri);
        if class_items.is_empty() {
            None
        } else {
            let items = if paren_follows_cursor(content, position) {
                strip_snippet_parens(class_items)
            } else {
                class_items
            };
            Some(CompletionResponse::List(CompletionList {
                is_incomplete: class_incomplete,
                items,
            }))
        }
    }

    // ─── Strategy: class / constant / function completion ────────────────