Fix clippy issues

src/construct/content.rs

@@ -182,7 +182,7 @@ pub fn resolve(tokenizer: &mut Tokenizer) -> Result<Option<Subresult>, message::
     let result = subtokenize(
         &mut tokenizer.events,
         tokenizer.parse_state,
-        &Some(Content::Content),
+        Some(&Content::Content),
     )?;
 
     Ok(Some(result))

src/construct/document.rs

@@ -304,26 +304,24 @@ pub fn containers_after(tokenizer: &mut Tokenizer) -> State {
         != tokenizer.tokenize_state.document_container_stack.len();
     child.define_skip(tokenizer.point.clone());
 
-    match tokenizer.current {
-        // Note: EOL is part of data.
-        None => State::Retry(StateName::DocumentFlowEnd),
-        Some(_) => {
-            let current = tokenizer.events.len();
-            let previous = tokenizer.tokenize_state.document_data_index;
-            if let Some(previous) = previous {
-                tokenizer.events[previous].link.as_mut().unwrap().next = Some(current);
-            }
-            tokenizer.tokenize_state.document_data_index = Some(current);
-            tokenizer.enter_link(
-                Name::Data,
-                Link {
-                    previous,
-                    next: None,
-                    content: Content::Flow,
-                },
-            );
-            State::Retry(StateName::DocumentFlowInside)
+    if tokenizer.current.is_some() {
+        let current = tokenizer.events.len();
+        let previous = tokenizer.tokenize_state.document_data_index;
+        if let Some(previous) = previous {
+            tokenizer.events[previous].link.as_mut().unwrap().next = Some(current);
         }
+        tokenizer.tokenize_state.document_data_index = Some(current);
+        tokenizer.enter_link(
+            Name::Data,
+            Link {
+                previous,
+                next: None,
+                content: Content::Flow,
+            },
+        );
+        State::Retry(StateName::DocumentFlowInside)
+    } else {
+        State::Retry(StateName::DocumentFlowEnd)
     }
 }
 
@@ -450,23 +448,20 @@ pub fn flow_end(tokenizer: &mut Tokenizer) -> State {
         debug_assert!(result.is_ok(), "did not expect error when exiting");
     }
 
-    match tokenizer.current {
-        None => {
-            tokenizer.tokenize_state.document_continued = 0;
-            if let Err(message) = exit_containers(tokenizer, &Phase::Eof) {
-                return State::Error(message);
-            }
-            resolve(tokenizer);
-            State::Ok
-        }
-        Some(_) => {
-            tokenizer.tokenize_state.document_continued = 0;
-            tokenizer.tokenize_state.document_lazy_accepting_before =
-                document_lazy_continuation_current;
-            // Containers would only be interrupting if we’ve continued.
-            tokenizer.interrupt = false;
-            State::Retry(StateName::DocumentContainerExistingBefore)
+    if tokenizer.current.is_some() {
+        tokenizer.tokenize_state.document_continued = 0;
+        tokenizer.tokenize_state.document_lazy_accepting_before =
+            document_lazy_continuation_current;
+        // Containers would only be interrupting if we’ve continued.
+        tokenizer.interrupt = false;
+        State::Retry(StateName::DocumentContainerExistingBefore)
+    } else {
+        tokenizer.tokenize_state.document_continued = 0;
+        if let Err(message) = exit_containers(tokenizer, &Phase::Eof) {
+            return State::Error(message);
         }
+        resolve(tokenizer);
+        State::Ok
     }
 }
 

src/parser.rs

@@ -74,6 +74,6 @@ pub fn parse<'a>(
             return Ok((events, parse_state));
         }
 
-        result = subtokenize(&mut events, &parse_state, &None)?;
+        result = subtokenize(&mut events, &parse_state, None)?;
     }
 }

src/subtokenize.rs

@@ -78,7 +78,7 @@ pub fn link_to(events: &mut [Event], previous: usize, next: usize) {
 pub fn subtokenize(
     events: &mut Vec<Event>,
     parse_state: &ParseState,
-    filter: &Option<Content>,
+    filter: Option<&Content>,
 ) -> Result<Subresult, message::Message> {
     let mut map = EditMap::new();
     let mut index = 0;
@@ -97,9 +97,7 @@ pub fn subtokenize(
             debug_assert_eq!(event.kind, Kind::Enter);
 
             // No need to enter linked events again.
-            if link.previous.is_none()
-                && (filter.is_none() || &link.content == filter.as_ref().unwrap())
-            {
+            if link.previous.is_none() && (filter.is_none() || link.content == *filter.unwrap()) {
                 // Index into `events` pointing to a chunk.
                 let mut link_index = Some(index);
                 // Subtokenizer.