Did lifetimes fix it?

This commit is contained in:
Tom Alexander 2022-10-30 05:53:18 -04:00
parent 7eb8087f9d
commit 58e31aa841
Signed by: talexander
GPG Key ID: D3A179C9A53C0EDE
3 changed files with 83 additions and 84 deletions

View File

@ -34,19 +34,19 @@ pub struct TestContext<T> {
// parent: ContextReference<T>,
// }
pub struct ContextData {
fail_matcher: ChainBehavior,
pub struct ContextData<'r> {
fail_matcher: ChainBehavior<'r>,
}
impl TestContext<ContextData> {
impl<'r> TestContext<ContextData<'r>> {
pub fn new() -> Self {
TestContext { head: None }
}
pub fn with_additional_fail_matcher(
&self,
new_matcher: MatcherRef,
) -> TestContext<ContextData> {
new_matcher: MatcherRef<'r>,
) -> TestContext<ContextData<'r>> {
TestContext {
head: Some(Rc::new(ContextLayer {
data: ContextData {
@ -62,91 +62,92 @@ impl TestContext<ContextData> {
///// OLD
/////
type MatcherRef =
Rc<RefCell<dyn for<'s> FnMut(&'s str) -> IResult<&'s str, &'s str, VerboseError<&'s str>>>>;
type MatcherRef<'r> = Rc<
RefCell<dyn for<'s> FnMut(&'s str) -> IResult<&'s str, &'s str, VerboseError<&'s str>> + 'r>,
>;
struct FailChecker<'r>(&'r NomContext<'r>);
// struct FailChecker<'r>(&'r NomContext<'r>);
impl<'r> FailChecker<'r> {
fn new(func: &'r NomContext<'r>) -> Self {
Self(func)
}
// impl<'r> FailChecker<'r> {
// fn new(func: &'r NomContext<'r>) -> Self {
// Self(func)
// }
// }
enum ChainBehavior<'r> {
AndParent(Option<MatcherRef<'r>>),
IgnoreParent(Option<MatcherRef<'r>>),
}
enum ChainBehavior {
AndParent(Option<MatcherRef>),
IgnoreParent(Option<MatcherRef>),
}
// pub struct NomContext<'r> {
// parent: Option<&'r Self>,
// fail_matcher: ChainBehavior<'r>,
// /// You can't have nested bolds or links in org-mode
// match_bold_allowed: bool,
// match_link_allowed: bool,
// }
pub struct NomContext<'r> {
parent: Option<&'r Self>,
fail_matcher: ChainBehavior,
/// You can't have nested bolds or links in org-mode
match_bold_allowed: bool,
match_link_allowed: bool,
}
// impl<'r> NomContext<'r> {
// pub fn new(fail_matcher: MatcherRef) -> Self {
// NomContext {
// parent: None,
// fail_matcher: ChainBehavior::IgnoreParent(Some(fail_matcher)),
// match_bold_allowed: true,
// match_link_allowed: true,
// }
// }
impl<'r> NomContext<'r> {
pub fn new(fail_matcher: MatcherRef) -> Self {
NomContext {
parent: None,
fail_matcher: ChainBehavior::IgnoreParent(Some(fail_matcher)),
match_bold_allowed: true,
match_link_allowed: true,
}
}
// pub fn with_additional_fail_matcher(&self, other: MatcherRef) -> NomContext {
// NomContext {
// parent: Some(&self),
// fail_matcher: ChainBehavior::AndParent(Some(other)),
// match_bold_allowed: self.match_bold_allowed,
// match_link_allowed: self.match_link_allowed,
// }
// }
pub fn with_additional_fail_matcher(&self, other: MatcherRef) -> NomContext {
NomContext {
parent: Some(&self),
fail_matcher: ChainBehavior::AndParent(Some(other)),
match_bold_allowed: self.match_bold_allowed,
match_link_allowed: self.match_link_allowed,
}
}
// pub fn without_bold(&self, other: MatcherRef) -> NomContext {
// NomContext {
// parent: Some(&self),
// fail_matcher: ChainBehavior::AndParent(Some(other)),
// match_bold_allowed: false,
// match_link_allowed: self.match_link_allowed,
// }
// }
pub fn without_bold(&self, other: MatcherRef) -> NomContext {
NomContext {
parent: Some(&self),
fail_matcher: ChainBehavior::AndParent(Some(other)),
match_bold_allowed: false,
match_link_allowed: self.match_link_allowed,
}
}
// pub fn not_matching_fail<'s>(&self, i: &'s str) -> IResult<&'s str, (), VerboseError<&'s str>> {
// not(FailChecker::new(self))(i)
// }
pub fn not_matching_fail<'s>(&self, i: &'s str) -> IResult<&'s str, (), VerboseError<&'s str>> {
not(FailChecker::new(self))(i)
}
// pub fn can_match_bold(&self) -> bool {
// self.match_bold_allowed
// }
pub fn can_match_bold(&self) -> bool {
self.match_bold_allowed
}
// pub fn can_match_link(&self) -> bool {
// self.match_link_allowed
// }
// }
pub fn can_match_link(&self) -> bool {
self.match_link_allowed
}
}
impl<'r, 's> Parser<&'s str, &'s str, VerboseError<&'s str>> for FailChecker<'r> {
fn parse(&mut self, i: &'s str) -> IResult<&'s str, &'s str, VerboseError<&'s str>> {
let fail_func = match &self.0.fail_matcher {
ChainBehavior::AndParent(inner) => inner,
ChainBehavior::IgnoreParent(inner) => inner,
};
if let Some(inner) = fail_func {
let parsed = (&mut *inner.borrow_mut())(i);
if parsed.is_ok() {
return parsed;
}
}
match (self.0.parent, &self.0.fail_matcher) {
(None, _) | (_, ChainBehavior::IgnoreParent(_)) => Err(nom::Err::Error(
nom::error::make_error(i, nom::error::ErrorKind::Alt),
)),
(Some(parent), ChainBehavior::AndParent(_)) => {
let mut parent_fail_checker = FailChecker::new(parent);
parent_fail_checker.parse(i)
}
}
}
}
// impl<'r, 's> Parser<&'s str, &'s str, VerboseError<&'s str>> for FailChecker<'r> {
// fn parse(&mut self, i: &'s str) -> IResult<&'s str, &'s str, VerboseError<&'s str>> {
// let fail_func = match &self.0.fail_matcher {
// ChainBehavior::AndParent(inner) => inner,
// ChainBehavior::IgnoreParent(inner) => inner,
// };
// if let Some(inner) = fail_func {
// let parsed = (&mut *inner.borrow_mut())(i);
// if parsed.is_ok() {
// return parsed;
// }
// }
// match (self.0.parent, &self.0.fail_matcher) {
// (None, _) | (_, ChainBehavior::IgnoreParent(_)) => Err(nom::Err::Error(
// nom::error::make_error(i, nom::error::ErrorKind::Alt),
// )),
// (Some(parent), ChainBehavior::AndParent(_)) => {
// let mut parent_fail_checker = FailChecker::new(parent);
// parent_fail_checker.parse(i)
// }
// }
// }
// }

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@ -26,7 +26,6 @@ use nom::multi::many_till;
use nom::sequence::tuple;
use nom::IResult;
use super::nom_context::NomContext;
use super::nom_context::TestContext;
use super::parser_with_context::parser_with_context;
use super::text_element_parser::paragraph;

View File

@ -6,7 +6,6 @@ use crate::parser::parser_with_context::parser_with_context;
use crate::parser::text::paragraph_end;
use super::nom_context::ContextData;
use super::nom_context::NomContext;
use super::nom_context::TestContext;
use super::text::bold_end;
use super::text::bold_start;