Enum DiskState 

pub enum DiskState {
    Unchanged,
    Changed,
    Missing,
    Unreadable,
    Untitled,
}

What the file behind a document looks like right now, against the bytes leaf last read from it or wrote to it — the question a frontend asks before it saves (a Changed file plus a dirty document is an overwrite about to happen) or when its window regains focus. See Doc::disk_state.

Variants

Unchanged

The file holds exactly the bytes leaf last read or wrote.

Changed

Someone else wrote the file since. Saving overwrites their work; see Doc::reload for the other direction.

Missing

The file is gone — deleted or renamed away. A save recreates it.

Unreadable

There is a path, but the file couldn’t be read (permissions, a directory in the way): leaf can’t tell, and won’t guess.

Untitled

No file behind this document yet — see Doc::blank. Nothing can have changed under a document that was never on disk.

Trait Implementations

impl Clone for DiskState

fn clone(&self) -> DiskState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DiskState

impl Debug for DiskState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for DiskState

impl PartialEq for DiskState

fn eq(&self, other: &DiskState) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DiskState