//! Private macro used for error handling.
/// Logs an error, ignores an `Ok` value.
macro_rules! log_if_err {
($x:expr) => {
let closure = || {
try_else_return!($x);
};
closure();
};
}
/// Matches a result, returning the `Ok` value in case of success,
/// exits the calling function otherwise.
/// A closure which returns the return value for the function can
/// be passed as second parameter.
macro_rules! try_else_return {
($x:expr) => {
try_else_return!($x, || {});
};
($x:expr, $el:expr) => {
match $x {
Ok(x) => x,
Err(e) => {
::error::log_error(&e);
let closure = $el;
return closure();
}
}
};
}