8 breaking releases

0.9.0	Aug 30, 2023
0.8.0	Jul 2, 2023
0.7.0	Jun 29, 2023

#2047 in Procedural macros

179 downloads per month
Used in ux2

Apache-2.0

75KB
1.5K SLoC

uX2: A better uX

Non-standard integer types like `u7`, `u9`, `u10`, `u63`, `i7`, `i9` etc.

When non-standard-width integers are required in an application, the norm is to use a larger container and make sure the value is within range after manipulation. uX2 aims to take care of this once and for all by providing u1-u127 and i1-i127 types (depending on the enabled features) that offer safe arithmetic operations.

<core::primitive::i32 as core::ops::Add<core::primitive::i32>>::add can panic in Debug or overflow in Release, <ux2::i32 as core::ops::Add<ux2::i32>>::add cannot panic or overflow in Debug or Release, this is because it returns ux2::i33. This is applied for all operations and combinations of types in ux2. This allows for more thorough compile time type checking.

use rand::Rng;
let a = ux2::i4::try_from(3i8).unwrap();
let b = ux2::i8::from(rand::thread_rng().gen::<core::primitive::i8>());
let c: ux2::i9 = a + b;
let d: ux2::i4 = c % a;
let e: core::primitive::i8 = core::primitive::i8::from(d);

uX2 types take up as much space as the smallest integer type that can contain them.

Features

The 8, 16, 32, 64 and 128 features enable support up to the types of i8/u8, i16/u16, i32/u32, i64/u64 and i128/u128 respectively.

The compile times increase exponentially, 3s, 7s, 30s, 3m and 46m respectively.

Click here for me details

```bash
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo clean
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo build --no-default-features --features 8
Compiling proc-macro2 v1.0.56
Compiling unicode-ident v1.0.8
Compiling quote v1.0.26
Compiling ux2-macros v0.7.0 (/home/jonathan/Projects/ux2/ux2-macros)
Compiling ux2 v0.7.0 (/home/jonathan/Projects/ux2/ux2)
    Finished dev [unoptimized + debuginfo] target(s) in 3.00s
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo clean
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo build --no-default-features --features 16
Compiling proc-macro2 v1.0.56
Compiling quote v1.0.26
Compiling unicode-ident v1.0.8
Compiling ux2-macros v0.7.0 (/home/jonathan/Projects/ux2/ux2-macros)
Compiling ux2 v0.7.0 (/home/jonathan/Projects/ux2/ux2)
    Finished dev [unoptimized + debuginfo] target(s) in 7.36s
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo clean
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo build --no-default-features --features 32
Compiling proc-macro2 v1.0.56
Compiling unicode-ident v1.0.8
Compiling quote v1.0.26
Compiling ux2-macros v0.7.0 (/home/jonathan/Projects/ux2/ux2-macros)
Compiling ux2 v0.7.0 (/home/jonathan/Projects/ux2/ux2)
    Finished dev [unoptimized + debuginfo] target(s) in 29.96s
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo clean
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo build --no-default-features --features 64
Compiling proc-macro2 v1.0.56
Compiling unicode-ident v1.0.8
Compiling quote v1.0.26
Compiling ux2-macros v0.7.0 (/home/jonathan/Projects/ux2/ux2-macros)
Compiling ux2 v0.7.0 (/home/jonathan/Projects/ux2/ux2)
    Finished dev [unoptimized + debuginfo] target(s) in 3m 26s
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo clean
jonathan@jonathan-System-Product-Name:~/Projects/ux2/ux2$ cargo build --no-default-features --features 128
Compiling proc-macro2 v1.0.56
Compiling unicode-ident v1.0.8
Compiling quote v1.0.26
Compiling ux2-macros v0.7.0 (/home/jonathan/Projects/ux2/ux2-macros)
Compiling ux2 v0.7.0 (/home/jonathan/Projects/ux2/ux2)
    Finished dev [unoptimized + debuginfo] target(s) in 46m 22s
```

Why does this exist? Why use this over `ux`?

I noticed uX doesn't seem to be actively maintained and the current code could use some big changes.

So I did what any reasonable developer does and completely re-invented the wheel.

Behold uX2, slightly better in almost every way.

More functionality, with optional support for serde.
Better documentation.
Better CI (e.g. automated changelog)

I've already implemented some of the open issues from uX in this library e.g.

Why didn't I just post a PR on uX?

Review: The current PRs don't seem to be getting reviewed, I wasn't really confident a PR which completely changes the entire library would be merged.
Control: If the maintainer/s of uX are inactive there is nothing I can do, I cannot get PRs merged or fix issue, if I have control I can do this.

Dependencies

~84KB