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Improve a bit ergonomics around BoxedElemOrVec #115

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Improve a bit ergonomics around BoxedElemOrVec #115

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29 changes: 29 additions & 0 deletions src/thing.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -816,6 +816,35 @@ pub enum BoxedElemOrVec<T> {
Vec(Vec<T>),
}

impl<T> BoxedElemOrVec<T> {
#[inline]
pub fn to_ref(&self) -> BoxedElemOrVecRef<'_, T> {
match self {
Self::Elem(elem) => BoxedElemOrVecRef::Elem(elem),
Self::Vec(vec) => BoxedElemOrVecRef::Vec(vec),
}
}
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum BoxedElemOrVecRef<'a, T> {
Elem(&'a T),
Vec(&'a [T]),
}

impl<'a, T> BoxedElemOrVecRef<'a, T> {
#[inline]
pub fn map<F, U>(self, mut f: F) -> BoxedElemOrVec<U>
where
F: FnMut(&'a T) -> U,
{
match self {
Self::Elem(elem) => BoxedElemOrVec::Elem(Box::new(f(elem))),
Self::Vec(vec) => BoxedElemOrVec::Vec(vec.iter().map(f).collect()),
}
}
}

#[derive(Clone, Debug, Default, PartialEq)]
pub(crate) struct UncheckedArraySchema<DS, AS, OS> {
pub(crate) items: Option<BoxedElemOrVec<UncheckedDataSchema<DS, AS, OS>>>,
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