xch 0.2.0

A CLI utility and rust crate to atomically swap the content of two paths.
Documentation 
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use error::{Result, ErrorKind};
use std::path;
use std::fmt;
use std::error;

pub fn xch<A: AsRef<path::Path>, B: AsRef<path::Path>>(_path1: A, _path2: B) -> Result<()> {
    Err(ErrorKind::NotImplemented.into())
}

#[derive(Debug)]
pub struct PlatformError;

impl fmt::Display for PlatformError {
    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
        write!(fmt, "GenericPlatformError")
    }
}

impl error::Error for PlatformError {
    fn cause(&self) -> Option<&error::Error> {
        None
    }

    fn description(&self) -> &str {
        "Generic error because atomic methods are not implemented for the current platform"
    }
}