How do I import a mod with traits into rust? this function takes 1 parameter but 0 parameters were supplied

Question

How do I import a mod into rust?

1) I have a file with these contents:

this_is_stupid.rs

pub mod fix_me {

    use crate::InputData;

    pub trait Wow {
        fn findMe(&self);
    }


    //impl  InputData {
    impl Wow for InputData {

        fn findMe(&self) {
            print!("Really dudes we are working?");
        }
    } //end impl 
} // mod

In my main I have this:

   pub mod this_is_stupid;
   use crate::this_is_stupid::fix_me;
   pub struct InputData {}
   fn main() {
        let input_data: InputData{};
        fix_me::Wow::findMe();
    }

Here is my error:

error[E0061]: this function takes 1 parameter but 0 parameters were supplied                                                                                          
  --> src/main.rs:85:9                                                                                                                                                
   |                                                                                                                                                                  
85 |         fix_me::Wow::findMe();                                                                                                                                   
   |         ^^^^^^^^^^^^^^^^^^^^^ expected 1 parameter                                                                                                               
   |                                                                                                                                                                  
  ::: src/this_is_stupid.rs:12:9                                                                                                                                      
   |                                                                                                                                                                  
12 |         fn findMe(&self);                                                                                                                                        
   |         ----------------- defined here

Your code is not valid rust syntax, e.g. `pub struct InputData{};` is not valid. Please fix that and format your code according to the rustfmt guidelines, e.g. by using [the playground](https://play.rust-lang.org) — hellow, Jan 18 '19 at 07:29

score 2 · Accepted Answer · answered Jan 18 '19 at 07:22

2

It seems like you imported the mod but called the function wrong.

You can call it in two different ways:

fix_me::Wow::findMe(&input_data);
input_data.findMe();

answered Jan 18 '19 at 07:22

Akiner Alkan

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How do I import a mod with traits into rust? this function takes 1 parameter but 0 parameters were supplied

1 Answers1