Remove Result from methods that cannot generate errors for clarity

Author: Mingun

src/reader/mod.rs

@@ -245,19 +245,19 @@ macro_rules! read_event_impl {
                         ReadTextResult::UpToMarkup(bytes) => {
                             $self.state.state = ParseState::InsideMarkup;
                             // Return Text event with `bytes` content or Eof if bytes is empty
-                            $self.state.emit_text(bytes)
+                            Ok($self.state.emit_text(bytes))
                         }
                         ReadTextResult::UpToEof(bytes) => {
                             $self.state.state = ParseState::Done;
                             // Return Text event with `bytes` content or Eof if bytes is empty
-                            $self.state.emit_text(bytes)
+                            Ok($self.state.emit_text(bytes))
                         }
                         ReadTextResult::Err(e) => Err(Error::Io(e.into())),
                     }
                 },
                 // Go to InsideText state in next two arms
                 ParseState::InsideMarkup => $self.$read_until_close($buf) $(.$await)?,
-                ParseState::InsideEmpty => $self.state.close_expanded_empty(),
+                ParseState::InsideEmpty => Ok(Event::End($self.state.close_expanded_empty())),
                 ParseState::Done => Ok(Event::Eof),
             };
         };
@@ -348,7 +348,7 @@ macro_rules! read_until_close {
                 .read_with(ElementParser::default(), $buf, &mut $self.state.offset)
                 $(.$await)?
             {
-                Ok(bytes) => $self.state.emit_start(bytes),
+                Ok(bytes) => Ok($self.state.emit_start(bytes)),
                 Err(e) => Err(e),
             },
             // `<` - syntax error, tag not closed

src/reader/state.rs

@@ -60,7 +60,7 @@ impl ReaderState {
     ///
     /// [`Text`]: Event::Text
     /// [`Eof`]: Event::Eof
-    pub fn emit_text<'b>(&mut self, bytes: &'b [u8]) -> Result<Event<'b>> {
+    pub fn emit_text<'b>(&mut self, bytes: &'b [u8]) -> Event<'b> {
         let mut content = bytes;
 
         if self.config.trim_text_end {
@@ -73,9 +73,9 @@ impl ReaderState {
         }
 
         if content.is_empty() {
-            Ok(Event::Eof)
+            Event::Eof
         } else {
-            Ok(Event::Text(BytesText::wrap(content, self.decoder())))
+            Event::Text(BytesText::wrap(content, self.decoder()))
         }
     }
 
@@ -257,7 +257,7 @@ impl ReaderState {
     ///
     /// # Parameters
     /// - `content`: Content of a tag between `<` and `>`
-    pub fn emit_start<'b>(&mut self, content: &'b [u8]) -> Result<Event<'b>> {
+    pub fn emit_start<'b>(&mut self, content: &'b [u8]) -> Event<'b> {
         if let Some(content) = content.strip_suffix(b"/") {
             // This is self-closed tag `<something/>`
             let event = BytesStart::wrap(content, name_len(content));
@@ -266,9 +266,9 @@ impl ReaderState {
                 self.state = ParseState::InsideEmpty;
                 self.opened_starts.push(self.opened_buffer.len());
                 self.opened_buffer.extend(event.name().as_ref());
-                Ok(Event::Start(event))
+                Event::Start(event)
             } else {
-                Ok(Event::Empty(event))
+                Event::Empty(event)
             }
         } else {
             let event = BytesStart::wrap(content, name_len(content));
@@ -278,17 +278,17 @@ impl ReaderState {
             // enabled, we should have that information
             self.opened_starts.push(self.opened_buffer.len());
             self.opened_buffer.extend(event.name().as_ref());
-            Ok(Event::Start(event))
+            Event::Start(event)
         }
     }
 
     #[inline]
-    pub fn close_expanded_empty(&mut self) -> Result<Event<'static>> {
+    pub fn close_expanded_empty(&mut self) -> BytesEnd<'static> {
         self.state = ParseState::InsideText;
         let name = self
             .opened_buffer
             .split_off(self.opened_starts.pop().unwrap());
-        Ok(Event::End(BytesEnd::wrap(name.into())))
+        BytesEnd::wrap(name.into())
     }
 
     /// Get the decoder, used to decode bytes, read by this reader, to the strings.