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use std::cmp::Ordering;
#[derive(Debug, Clone, Copy, Eq, PartialEq)]
pub enum Access {
Read,
Write,
ReadWrite,
}
impl Access {
pub fn is_read(&self) -> bool {
match self {
Access::Read | Access::ReadWrite => true,
Access::Write => false,
}
}
pub fn is_write(&self) -> bool {
match self {
Access::Write | Access::ReadWrite => true,
Access::Read => false,
}
}
}
impl PartialOrd for Access {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
if self == other {
return Some(Ordering::Equal);
}
match (self, other) {
(Access::ReadWrite, _) => Some(Ordering::Greater),
(_, Access::ReadWrite) => Some(Ordering::Less),
_ => None,
}
}
}