Derive Macro Salt 

#[derive(Salt)]
{
    // Attributes available to this derive:
    #[salt]
}

Derive macro used to implement the Salt trait

If the user need to use multiple tasks of the same type, the salt attribute can be used to define a unique salt.

The salt attribute is a string that can contain placeholders for the fields of the struct. The placeholders must be in the form of {self.field_name}.

Example

#[derive(Salt)]
#[salt(format = "Task {self.id} {self.name}")]
struct Task {
   id: TaskState<u32>,
   name: TaskState<String>,
   ...
}

struct SecondTask {
   id: TaskState<u32>,
   ...
}

In this example, the salt implementation will look like this:

impl Salt for Task {
    fn salt(&self) -> String {
        format!("Task {} {}", &*self.id.read().unwrap(), &*self.name.read().unwrap())
    }
}

impl Salt for SecondTask {}