About

Repository stores code for Rust library that allows to read from and write to .io file format.

Functions and plans

The current status of both serialization and deserialization:

• Primitive types
• Strings
• Arrays
• Vectors
• Hashmaps
• Structs (Named{} and tuple())
• Generics
• Combinations of all above
• Tuples
• Option
• Result
• Enums
• &str type
• Slices

Capabilities

• Serialization of supported types using macro to_io!() using objects reference,
• Deserialization of supported types using macro from_io!() using .io formatted String and wanted objects type,
• Renaming structs fields in and from .io formatted String using #[io_name()] helper macro using String literal as argument.
• Ordering structs fields in and from .io formatted String using #[io_order()] helper macro using either FIRST and LAST keywords or an i16 Integer.

See example below for usage of those capabilities.

Example usage

use iodeser::*; // required import

#[derive(IoDeSer, Debug)] // required macro derive IoDeSer, Debug is not required
struct Person<T: IoDeSer> {
    #[io_name("Name")]      // optional renaming
    pub name: String,
    #[io_name("LastName")]  // optional renaming
    pub last_name: String,
    #[io_name("Age")]       // optional renaming
    #[io_order(LAST)]       // optional ordering using FIRST or LAST keyword
    pub age: u8,
    #[io_name("Address")]   // optional renaming
    #[io_order(FIRST)]      // optional ordering using FIRST or LAST keyword
    pub address: Vec<Address<T>>,
}

#[derive(IoDeSer, Debug)] // required macro derive, Debug is not required
struct Address<T: IoDeSer> {
    #[io_order(3)]          // optional ordering using integer
    pub city: String,
    #[io_order(1)]          // optional ordering using integer
    pub number: T,
    #[io_order(2)]          // optional ordering using integer
    pub street: String,
}

fn main() {
    let person = Person::<u8> {
        name: "John".to_string(),
        last_name: "Kowalski".to_string(),
        age: 21,
        address: vec![Address::<u8> {
            city: "Warsaw".to_string(),
            number: 65,
            street: "Tęczowa".to_string(),
        }, Address::<u8> {
            city: "Hamburg".to_string(),
            number: 220,
            street: "Strasse".to_string(),
        }],
    };

    let io_serialization: String = to_io!(&person); // serialization by reference
    /* saving to file for example */
    println!("{}", &io_serialization);

    let person_deserialization: Person<u8> = from_io!(io_serialization, Person<u8>).unwrap(); // deserialization
    println!("{:?}", &person_deserialization);
}
/*
Output:
|
        Address->|
                |
                        number->|65|     
                        street->|Tęczowa|
                        city->|Warsaw|   
                |
                +
                |
                        number->|220|    
                        street->|Strasse|
                        city->|Hamburg|
                |
        |
        Name->|John|
        LastName->|Kowalski|
        Age->|21|
|
Person { name: "John", last_name: "Kowalski", age: 21, address: [Address { city: "Warsaw", number: 65, street: "Tęczowa" }, Address { city: "Hamburg", number: 220, street: "Strasse" }] }
*/