From add717071c305ce2ca97c26933ba7f3816bd4bce Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Fri, 14 Oct 2022 20:25:10 -0400
Subject: [PATCH] Using a mutable reference breaks clone.

---
 src/parser/nom_context.rs         | 5 ++---
 src/parser/text.rs                | 2 +-
 src/parser/text_element_parser.rs | 1 +
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/parser/nom_context.rs b/src/parser/nom_context.rs
index 1dab499d..aa2a905b 100644
--- a/src/parser/nom_context.rs
+++ b/src/parser/nom_context.rs
@@ -2,9 +2,8 @@ use nom::branch::alt;
 use nom::error::VerboseError;
 use nom::IResult;
 
-#[derive(Clone)]
 pub struct NomContext<'a> {
-    pub fail_matcher: &'a dyn FnMut(&str) -> IResult<&str, &str, VerboseError<&str>>,
+    pub fail_matcher: &'a mut dyn FnMut(&str) -> IResult<&str, &str, VerboseError<&str>>,
     /// You can't have nested bolds or links in org-mode
     pub can_match_bold: bool,
     pub can_match_link: bool,
@@ -12,7 +11,7 @@ pub struct NomContext<'a> {
 
 impl<'a> NomContext<'a> {
     pub fn new(
-        fail_matcher: &'a dyn FnMut(&str) -> IResult<&str, &str, VerboseError<&str>>,
+        fail_matcher: &'a mut dyn FnMut(&str) -> IResult<&str, &str, VerboseError<&str>>,
     ) -> Self {
         NomContext {
             fail_matcher,
diff --git a/src/parser/text.rs b/src/parser/text.rs
index ae7af927..1826228b 100644
--- a/src/parser/text.rs
+++ b/src/parser/text.rs
@@ -133,7 +133,7 @@ pub fn paragraph_end(input: &str) -> Res<&str, &str> {
 }
 
 pub fn document(input: &str) -> Res<&str, Vec<(Vec<TextElement>, &str)>> {
-    let initial_context = NomContext::new(&paragraph_end);
+    let initial_context = NomContext::new(&mut paragraph_end);
     todo!()
     // many1(parser_with_context!(paragraph)(initial_context))(input)
 }
diff --git a/src/parser/text_element_parser.rs b/src/parser/text_element_parser.rs
index a51e3bc3..8dcb96ba 100644
--- a/src/parser/text_element_parser.rs
+++ b/src/parser/text_element_parser.rs
@@ -25,5 +25,6 @@ fn flat_text_element<'s, 'r>(
     i: &'s str,
     context: &'r mut NomContext,
 ) -> Res<&'s str, TextElement<'s>> {
+    not(&mut context.fail_matcher)(i)?;
     todo!()
 }