Crate cluConcatBytes

Merges literals into a static array. Plugin for compiler.

Use

1. Easy use

#![feature(plugin)]
#![plugin(cluConcatBytes)]

fn main() {
    let c_str = concat_bytes!("cluWorld");
    //&'static [u8]
    //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8
    assert_eq!(c_str, b"cluWorld");
    
    
    let c_str2 = concat_bytes!("clu", b"World");
    //&'static [u8]
    //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8
    assert_eq!(c_str2, b"cluWorld");
    
    let c_str3 = concat_bytes!(
        b'c', b'l', b'u',
        b'W', b'o', b'r', b'l', b'd'
    );
    //&'static [u8]
    //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8
    assert_eq!(c_str3, b"cluWorld");
    
    let c_str4 = concat_bytes!(
        "clu", b'W', b'o', b'r', b'l', b"d"
    );
    //&'static [u8]
    //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8
    assert_eq!(c_str4, b"cluWorld");
    
    my_function(c_str);
    my_function(c_str2);
    my_function(c_str3);
    my_function(c_str4);
}

fn my_function(array:  &'static [u8]) {
    //'static --> it is possible not to write.
    
    println!("array: {:?}, len: {}", array, array.len());
}

2. Raw use

#![feature(plugin)]
#![plugin(cluConcatBytes)]

fn main() {
    let c_str = concat_bytes!(@"cluWorld");
    //[u8; 8]
    //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8
    assert_eq!(&c_str, b"cluWorld");
    
    
    let c_str2 = concat_bytes!(@"cluWorld");
    //[u8; 8]
    //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8
    assert_eq!(&c_str2, b"cluWorld");
    
    
    let c_str3 = concat_bytes!(@"clu", b"World");
    //[u8; 8]
    //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8
    assert_eq!(&c_str3, b"cluWorld");
    
    my_function(c_str);
    my_function(c_str2);
    my_function(c_str3);
}

fn my_function(array:  [u8; 8]) {
    //'static --> it is possible not to write.
    
    println!("array: {:?}, len: {}", array, array.len());
}

License

Copyright 2019 #UlinProject Denis Kotlyarov (Денис Котляров)

Licensed under the Apache License, Version 2.0

Macros

concat_bytes