Open WiSaGaN opened 3 years ago
Do you have a specific usecase in mind for this?
I am currently using this to align two data series from different sources while they both describes the same underlying event stream, e1....en, which we don't have other ways to observe:
So I now use capture_diff_slices
with success to form a combined and sorted data series. However, this is based on the assumption that the data points from different series are equal if they describe the same event. This is not the case for some kind of data. Data points from different data sources may have fields that have different values due to observation defects, which we know beforehand, and thus would like to ignore when we do the capture_diff_slices
. In rust, I want to have a way to supply the compare function so that I can change it dynamically instead of implementing new Ord
/Eq
.
I need this feature too. I compare two slices with Foo
defined like this:
struct Foo {
uuid: Uuid,
others: Data,
}
In particular algorithm I compare slices only by uuid
field,
but in other algorithms I need PartialEq
that take others
also into account.
So I have to create two Vec<Wrapper<'a>>
, where Wrapper
hold
reference to Foo
and its PartialEq
compare only uuid
.
I should first say, thank you for the crate, this is very useful for even comparing binary data.
Similar to
capture_diff_slices
but user can supply aF: FnMut(&T, &T) -> Ordering
. This is more of a wishlist since I don't have a concrete design in mind. Please feel free to close if this is not possible or not on the roadmap.