11 unstable releases (3 breaking)

0.4.1 May 27, 2024
0.4.0 May 27, 2024
0.3.5-alpha May 27, 2024
0.2.0 Apr 26, 2024
0.1.2 Apr 24, 2024

#2398 in Data structures


Used in structz

MIT/Apache

7KB
60 lines

stringz

Convert strings to types to make it available as generic parameters.

Install

cargo add stringz

For no_std users:

cargo add stringz --no-default-features 

Example

use stringz::{TypedString, string};

fn test_hello<T: TypedString>() {
    assert_eq!(T::value(), "hello");
}

test_hello::<string!("hello")>();

Explanation

The string macro converts "hello" to the following tuple type:

(Character<'h'>, Character<'e'>, Character<'l'>, Character<'l'>, Character<'o'>)

Note: The above form is only for ease of understanding, the actual Tuple type of tuplez is used.

All generated types are zero-sized types:

use stringz::string;
assert_eq!(std::mem::size_of::<string!("no matter how long it is")>(), 0);

lib.rs:

Convert strings to types to make it available as generic parameters.

Install

cargo add stringz

For no_std users:

cargo add stringz --no-default-features

Example

use stringz::{TypedString, string};

fn test_hello<T: TypedString>() {
    assert_eq!(T::value(), "hello");
}

test_hello::<string!("hello")>();

Explanation

The string macro converts "hello" to the following tuple type:

(Character<'h'>, Character<'e'>, Character<'l'>, Character<'l'>, Character<'o'>)

Note: The above form is only for ease of understanding, the actual Tuple type of tuplez is used.

All generated types are zero-sized types:

use stringz::string;
assert_eq!(std::mem::size_of::<string!("no matter how long it is")>(), 0);

Dependencies

~0.5–1MB
~20K SLoC