Seems like sails_rs::program/service ignore attributes on methods

[gshep]

Problem

While working on gas estimation for reply hook I faced the issue with attributes on service/program methods. Looks like the attributes are completely ignored.

Steps

1. cargo-sails new-program test-attriute

#[derive(Clone, Debug, Decode, TypeInfo)]
#[codec(crate = sails_rs::scale_codec)]
#[scale_info(crate = sails_rs::scale_info)]
struct Input {
    n: u32,
}

#[sails_rs::service]
impl TestAttributeService {
    pub fn new() -> Self {
        Self(())
    }

    // Service's method (command)
    #[allow(unused_mut)]
    pub fn do_something(&mut self, mut input: Input) -> String {
        input.n += 1;
        "Hello from TestAttribute!".to_string()
    }
}

3. cargo b
4. build log is attached. There is the warning that mut is not necessary however it is and the redundant attribute has been applied.

Possible Solution

No response

Notes

No response

Relevant Log Output

Click to expand/collapse

warning: variable does not need to be mutable
  --> app/src/lib.rs:29:36
   |
29 |     pub fn do_something(&mut self, mut input: Input) -> String {
   |                                    ----^^^^^
   |                                    |
   |                                    help: remove this `mut`
   |
   = note: `#[warn(unused_mut)]` on by default