Trait lasso::Key[−][src]

pub unsafe trait Key: Copy + Eq {
    fn into_usize(self) -> usize;

    fn try_from_usize(int: usize) -> Option<Self>;
}
Expand description

Types implementing this trait can be used as keys for all Rodeos

Safety

into/from must be perfectly symmetrical, any key that goes on must be perfectly reproduced with the other

Required methods

fn into_usize(self) -> usize[src]

Returns the usize that represents the current key

fn try_from_usize(int: usize) -> Option<Self>[src]

Attempts to create a key from a usize, returning None if it fails

Implementors

impl Key for LargeSpur[src]

fn try_from_usize(int: usize) -> Option<Self>[src]

Returns None if int is greater than usize::MAX - 1

fn into_usize(self) -> usize[src]

impl Key for MicroSpur[src]

fn try_from_usize(int: usize) -> Option<Self>[src]

Returns None if int is greater than u8::MAX - 1

fn into_usize(self) -> usize[src]

impl Key for MiniSpur[src]

fn try_from_usize(int: usize) -> Option<Self>[src]

Returns None if int is greater than u16::MAX - 1

fn into_usize(self) -> usize[src]

impl Key for Spur[src]

fn try_from_usize(int: usize) -> Option<Self>[src]

Returns None if int is greater than u32::MAX - 1

fn into_usize(self) -> usize[src]