Method get_file_content_arc

src/util.rs:1531–1551

Retrieve file content as a cheap `Arc ` reference when the file is in `open_files`. Falls back to reading from disk (which wraps the result in a new `Arc`). Prefer this over [`get_file_content`] in hot paths where the content will be shared across tasks or stored for the duration of a request, since it avoids deep-cloning the file string.

(&self, uri: &str)

    /// content will be shared across tasks or stored for the duration
    /// of a request, since it avoids deep-cloning the file string.
    pub(crate) fn get_file_content_arc(&self, uri: &str) -> Option<Arc<String>> {
        if let Some(content) = self.open_files.read().get(uri) {
            return Some(Arc::clone(content));
        }

        // Embedded class stubs live under synthetic `phpantom-stub://`
        // URIs and have no on-disk file.
        if let Some(class_name) = uri.strip_prefix("phpantom-stub://") {
            let stub_idx = self.stub_index.read();
            return stub_idx.get(class_name).map(|s| Arc::new(s.to_string()));
        }

        // Embedded function stubs use `phpantom-stub-fn://` URIs.
        if let Some(func_name) = uri.strip_prefix("phpantom-stub-fn://") {
            let stub_fn_idx = self.stub_function_index.read();
            return stub_fn_idx.get(func_name).map(|s| Arc::new(s.to_string()));
        }

        let path = Url::parse(uri).ok()?.to_file_path().ok()?;
        std::fs::read_to_string(path).ok().map(Arc::new)
    }

    /// Public helper for tests: get the uri_classes_index entry for a given URI.
    pub fn get_classes_for_uri(&self, uri: &str) -> Option<Vec<ClassInfo>> {