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// lib.rs - Main library file for Rust sample project pub mod basic_functions; pub mod structs_enums; pub mod traits; pub mod error_handling; pub mod lifetimes_references; pub mod generics; pub mod concurrency; pub mod iterators_closures; pub mod smart_pointers; pub mod modules; // Re-exports for convenience pub use basic_functions::*; pub use structs_enums::{Person, Status}; pub use traits::{Describable, Area}; /// Library-level documentation /// /// This is a comprehensive Rust sample project demonstrating: /// - Basic and advanced function patterns /// - Structs, enums, and their implementations /// - Traits and trait implementations /// - Error handling with Result and custom errors /// - Lifetimes and references /// - Generics and type parameters /// - Concurrency with threads and channels /// - Iterators and closures /// - Smart pointers (Box, Rc, Arc, RefCell) /// - Module organization #[cfg(test)] mod integration_tests { use super::*; #[test] fn test_basic_workflow() { let result = simple_function(5); assert_eq!(result, 10); let person = Person::new("Alice".to_string(), 30); assert_eq!(person.name, "Alice"); } }