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#[macro_export]
macro_rules! bail
{
($ctx:expr) => {
return Err($crate::err_msg($ctx).into());
};
($fmt:expr, $($arg:tt)*) => {
return Err($crate::err_msg(format!($fmt, $($arg)*)).into());
};
}
#[macro_export]
macro_rules! ensure
{
($cond:expr, $ctx:expr) => {
if !($cond) {
return Err($crate::err_msg($ctx).into());
}
};
($cond:expr, $fmt:expr, $($arg:tt)*) => {
if !($cond) {
return Err($crate::err_msg(format!($fmt, $($arg)*)).into());
}
};
}
#[macro_export]
macro_rules! format_err
{
($($arg:tt)*) => { $crate::err_msg(format!($($arg)*)) };
}