fix: clippy needless doctest main warning

filecaster-derive/src/lib.rs

@@ -34,39 +34,38 @@
 //!
 //! ```rust
 //! use filecaster::FromFile;
-//! use serde::{Deserialize, Serialize};
 //!
-//! #[derive(Debug, Clone, PartialEq, FromFile, Serialize, Deserialize)]
+//! #[derive(Debug, Clone, PartialEq, FromFile)]
 //! struct AppConfig {
 //!     /// If the user does not specify a host, use `"127.0.0.1"`.
 //!     #[from_file(default = "127.0.0.1")]
 //!     host: String,
 //!
-//!     /// Number of worker threads; defaults to `4`.
-//!     #[from_file(default = 4)]
-//!     workers: usize,
+//!     /// Port number; defaults to `8080`.
+//!     #[from_file(default = 8080)]
+//!     port: u16,
 //!
 //!     /// If not set, use `false`. Requires `bool: Default`.
 //!     auto_reload: bool,
 //! }
 //!
-//! fn main() {
+//! fn example() {
 //!     // Simulate file content (e.g., from a JSON file)
-//!     let file_content = r#"{
-//!         "host": "localhost",
-//!         "workers": 8
-//!     }"#;
+//!     let file_content = r#"{ "host": "localhost", "port": 3000 }"#;
 //!
 //!     // The `AppConfigFile` struct is automatically generated by `#[derive(FromFile)]`.
 //!     // It has all fields as `Option<T>`.
 //!     let partial_config: AppConfigFile = serde_json::from_str(file_content).unwrap();
+//!     let partial_config2 = partial_config.clone();
 //!
 //!     // Use the generated `from_file` method to get the final config.
 //!     // Default values are applied for missing fields.
 //!     let config = AppConfig::from_file(Some(partial_config));
+//!     // or
+//!     let config: AppConfig = partial_config2.into();
 //!
 //!     assert_eq!(config.host, "localhost");
-//!     assert_eq!(config.workers, 8);
+//!     assert_eq!(config.port, 3000);
 //!     assert_eq!(config.auto_reload, false); // `Default::default()` for bool is `false`
 //!
 //!     println!("Final Config: {:#?}", config);
@@ -74,7 +73,7 @@
 //!     // Example with no file content (all defaults)
 //!     let default_config = AppConfig::from_file(None);
 //!     assert_eq!(default_config.host, "127.0.0.1");
-//!     assert_eq!(default_config.workers, 4);
+//!     assert_eq!(default_config.port, 8080);
 //!     assert_eq!(default_config.auto_reload, false);
 //! }
 //! ```