Enum common_types::account_diff::Diff

pub enum Diff<T> {
    Same,
    Born(T),
    Changed(T, T),
    Died(T),
}

Diff type for specifying a change (or not).

Variants

Same

Both sides are the same.

Born(T)

Left (pre, source) side doesn't include value, right side (post, destination) does.

Changed(T, T)

Both sides include data; it chaged value between them.

Died(T)

Left (pre, source) side does include value, right side (post, destination) does not.

Methods

impl<T> Diff<T>

pub fn new(pre: T, post: T) -> Self where     T: Eq,

Construct new object with given pre and post.

pub fn pre(&self) -> Option<&T>

Get the before value, if there is one.

pub fn post(&self) -> Option<&T>

Get the after value, if there is one.

pub fn is_same(&self) -> bool

Determine whether there was a change or not.

Trait Implementations

impl<T: Debug> Debug for Diff<T>

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

Formats the value using the given formatter.

impl<T: PartialEq> PartialEq for Diff<T>

fn eq(&self, other: &Diff<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Diff<T>) -> bool

This method tests for !=.

impl<T: Eq> Eq for Diff<T>

impl<T: Clone> Clone for Diff<T>

fn clone(&self) -> Diff<T>

Returns a copy of the value.

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

Performs copy-assignment from source.