Macro implement_error 

macro_rules! implement_error {
    ($struct_error:ident, $error_type: path, $error_kind: path) => { ... };
}

Implement the From trait for an struct with kind structure

Params

implement_in_error_in_struct($struct_error, $error_type, $error_kind);

Example

use heimdall_errors::implement_error;
use std::env::VarError;

pub enum ErrorKind {
    Var,
}

pub struct StructError {
    kind: ErrorKind,
    message: String,
}

// Implement From<VarError> for StructError.
implement_error!(StructError, VarError, ErrorKind::Var);

Code generated

The code

implement_error!(StructError, VarError, ErrorKind::Var);

generates the next code

 impl From<VarError> for StructError {
    fn from(err: VarError) -> Self {
        Self {
            kind: ErrorKind::Var,
            message: err.to_string(),
        }
     }
 }