Enum History 

pub enum History {
    None,
    Live,
    Frozen,
}

Whether a change log exists, and whether it is still recording.

Variants

None

No change log.

Live

The log records every change (level log).

Frozen

The log stopped recording at a freeze (the level was lowered); it still answers as-of queries up to the freeze.

Implementations

impl History

pub fn as_str(self) -> &'static str

Trait Implementations

impl Clone for History

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for History

impl Debug for History

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

Formats the value using the given formatter.

impl Default for History

fn default() -> Self

Returns the “default value” for a type.

impl Eq for History

impl PartialEq for History

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for History