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Change link data with page info

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This commit is contained in:
Joscha 2024-12-29 23:22:02 +01:00
parent 7af2a4e06f
commit c2c1b1234c
1 changed files with 44 additions and 8 deletions
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52
brood/src/data/adjacency_list.rs
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@ -10,7 +10,7 @@ pub struct Page<P> {
}
impl<P> Page<P> {
pub fn change_data<P2>(self, f: impl Fn(P) -> P2) -> Page<P2> {
pub fn change_data<P2>(self, f: &impl Fn(P) -> P2) -> Page<P2> {
Page {
start: self.start,
data: f(self.data),
@ -26,12 +26,19 @@ pub struct Link<L> {
}
impl<L> Link<L> {
pub fn change_data<L2>(self, f: impl Fn(L) -> L2) -> Link<L2> {
pub fn change_data<L2>(self, f: &impl Fn(L) -> L2) -> Link<L2> {
Link {
to: self.to,
data: f(self.data),
}
}
pub fn change_data_with_page<P, L2>(self, page: &P, f: &impl Fn(&P, L) -> L2) -> Link<L2> {
Link {
to: self.to,
data: f(page, self.data),
}
}
}
pub struct AdjacencyList<P, L> {
@ -42,8 +49,8 @@ pub struct AdjacencyList<P, L> {
impl<P, L> Default for AdjacencyList<P, L> {
fn default() -> Self {
Self {
pages: Default::default(),
links: Default::default(),
pages: vec![],
links: vec![],
}
}
}
@ -102,11 +109,11 @@ impl<P, L> AdjacencyList<P, L> {
self.link_range(page_idx).map(|i| (i, self.link(i)))
}
pub fn change_page_data<P2>(self, page_f: impl Fn(P) -> P2 + Copy) -> AdjacencyList<P2, L> {
pub fn change_page_data<P2>(self, page_f: impl Fn(P) -> P2) -> AdjacencyList<P2, L> {
let pages = self
.pages
.into_iter()
.map(|p| p.change_data(page_f))
.map(|p| p.change_data(&page_f))
.collect::<Vec<_>>();
AdjacencyList {
@ -115,11 +122,11 @@ impl<P, L> AdjacencyList<P, L> {
}
}
pub fn change_link_data<L2>(self, link_f: impl Fn(L) -> L2 + Copy) -> AdjacencyList<P, L2> {
pub fn change_link_data<L2>(self, link_f: impl Fn(L) -> L2) -> AdjacencyList<P, L2> {
let links = self
.links
.into_iter()
.map(|l| l.change_data(link_f))
.map(|l| l.change_data(&link_f))
.collect::<Vec<_>>();
AdjacencyList {
@ -127,6 +134,35 @@ impl<P, L> AdjacencyList<P, L> {
links,
}
}
pub fn change_link_data_with_page<L2>(
self,
link_f: impl Fn(&P, L) -> L2,
) -> AdjacencyList<P, L2> {
let mut pages = self.pages.iter().peekable();
let Some(mut cur_page) = pages.next() else {
// The list is empty, nothing to do
return AdjacencyList::default();
};
let mut links = vec![];
for (i, link) in self.links.into_iter().enumerate() {
if let Some(page) = pages.peek() {
if i >= page.start as usize {
cur_page = page;
pages.next();
}
}
links.push(link.change_data_with_page(&cur_page.data, &link_f));
}
AdjacencyList {
pages: self.pages,
links,
}
}
}
impl AdjacencyList<PageInfo, LinkInfo> {