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Switch to using the multi field macro for document and heading.

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This commit is contained in:
Tom Alexander 2023-09-27 18:38:51 -04:00
parent 32a7ce3f36
commit 95fa834420
Signed by: talexander
GPG Key ID: D3A179C9A53C0EDE
1 changed files with 16 additions and 59 deletions
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75
src/iter/ast_node_iter.rs
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@ -87,64 +87,22 @@ pub enum AstNodeIter<'r, 's> {
// Timestamp(TimestampIter<'r, 's>),
}
pub struct DocumentIter<'r, 's> {
zeroth_section_next: std::option::Iter<'r, Section<'s>>,
children_next: std::slice::Iter<'r, Heading<'s>>,
}
impl<'r, 's> Iterator for DocumentIter<'r, 's> {
type Item = AstNode<'r, 's>;
fn next(&mut self) -> Option<Self::Item> {
self.zeroth_section_next
.next()
.map(Into::<AstNode>::into)
.or_else(|| self.children_next.next().map(Into::<AstNode>::into))
}
}
impl<'r, 's> IntoIterator for &'r Document<'s> {
type Item = AstNode<'r, 's>;
type IntoIter = DocumentIter<'r, 's>;
fn into_iter(self) -> Self::IntoIter {
DocumentIter {
zeroth_section_next: self.zeroth_section.iter(),
children_next: self.children.iter(),
}
}
}
pub struct HeadingIter<'r, 's> {
title_next: std::slice::Iter<'r, Object<'s>>,
children_next: std::slice::Iter<'r, DocumentElement<'s>>,
}
impl<'r, 's> Iterator for HeadingIter<'r, 's> {
type Item = AstNode<'r, 's>;
fn next(&mut self) -> Option<Self::Item> {
self.title_next
.next()
.map(Into::<AstNode>::into)
.or_else(|| self.children_next.next().map(Into::<AstNode>::into))
}
}
impl<'r, 's> IntoIterator for &'r Heading<'s> {
type Item = AstNode<'r, 's>;
type IntoIter = HeadingIter<'r, 's>;
fn into_iter(self) -> Self::IntoIter {
HeadingIter {
title_next: self.title.iter(),
children_next: self.children.iter(),
}
}
}
multi_field_iter!(
Document<'s>,
DocumentIter,
zeroth_section,
std::option::Iter<'r, Section<'s>>,
children,
std::slice::Iter<'r, Heading<'s>>
);
multi_field_iter!(
Heading<'s>,
HeadingIter,
title,
std::slice::Iter<'r, Object<'s>>,
children,
std::slice::Iter<'r, DocumentElement<'s>>
);
children_iter!(Section<'s>, SectionIter, std::slice::Iter<'r, Element<'s>>);
children_iter!(
Paragraph<'s>,
@ -156,7 +114,6 @@ children_iter!(
PlainListIter,
std::slice::Iter<'r, PlainListItem<'s>>
);
multi_field_iter!(
PlainListItem<'s>,
PlainListItemIter,