chore(trixy-lang_parser): Apply clippy's suggestions

trixy/trixy-lang_parser/src/error.rs

@@ -51,7 +51,7 @@ impl ErrorContext {
 
         let contexted_span = {
             let matched_line: Vec<_> = original_file.match_indices(&line).collect();
-            let (index, matched_line) = matched_line.get(0).expect("This first index should always match, as we took the line from the string in the first place");
+            let (index, matched_line) = matched_line.first().expect("This first index should always match, as we took the line from the string in the first place");
             debug_assert_eq!(matched_line, &&line);
             TokenSpan {
                 start: span.start - index,
@@ -59,27 +59,25 @@ impl ErrorContext {
             }
         };
 
-        let line_above;
-        if line_number == 1 {
+        let line_above = if line_number == 1 {
             // We only have one line, so no line above
-            line_above = "".to_owned();
+            "".to_owned()
         } else {
-            line_above = (*lines
+            (*lines
                 .get((line_number - 1) - 1)
                 .expect("We checked that this should work"))
-            .to_owned();
-        }
+            .to_owned()
+        };
 
-        let line_below;
-        if lines.len() - 1 > line_number {
+        let line_below = if lines.len() - 1 > line_number {
             // We have a line after the current line
-            line_below = (*lines
+            (*lines
                 .get((line_number + 1) - 1)
                 .expect("We checked that this should work"))
-            .to_owned();
+            .to_owned()
         } else {
-            line_below = "".to_owned();
-        }
+            "".to_owned()
+        };
 
         Self {
             span,

trixy/trixy-lang_parser/src/lexing/error.rs

@@ -19,7 +19,7 @@ pub enum LexingError {
 
 impl AdditionalHelp for LexingError {
     fn additional_help(&self) -> String {
-        let out = match self {
+        match self {
                 LexingError::NoMatchesTaken => "This token does not produce a possible match".to_owned(),
                 LexingError::UnexpectedEOF => "This eof was completely unexpected".to_owned(),
                 LexingError::ExpectedArrow => "The `-` token is interpretet as a started arrow (`->`), but we could not find the arrow tip (`>`)".to_owned(),
@@ -27,8 +27,7 @@ impl AdditionalHelp for LexingError {
                     format!("This char: `{char}`; is not a valid token")
                 },
             LexingError::ExpectedComment => "The '/' started comment parsing, but I could not find a matching '/'".to_owned(),
-            };
-        out
+            }
     }
 }
 

trixy/trixy-lang_parser/src/lexing/mod.rs

@@ -31,13 +31,7 @@ impl TokenStream {
         // filter out comments
         let tokens = tokens
             .into_iter()
-            .filter(|token| {
-                if let TokenKind::Comment(_) = token.kind {
-                    false
-                } else {
-                    true
-                }
-            })
+            .filter(|token| !matches!(token.kind, TokenKind::Comment(_)))
             .collect();
 
         Ok(Self {
@@ -179,7 +173,7 @@ impl Display for TokenKind {
         match self {
             TokenKind::Keyword(word) => write!(f, "KEYWORD({})", word),
             TokenKind::Identifier(ident) => {
-                if ident == "" {
+                if ident.is_empty() {
                     write!(f, "IDENTIFIER")
                 } else {
                     write!(f, "IDENTIFIER({})", ident)

trixy/trixy-lang_parser/src/lexing/tokenizer.rs

@@ -27,7 +27,7 @@ impl<'a> Tokenizer<'a> {
     pub(super) fn next_token(&mut self) -> Result<Option<Token>, SpannedLexingError> {
         self.skip_ignored_tokens();
         if self.remaining_text.is_empty() {
-            return Ok(None);
+            Ok(None)
         } else {
             let start = self.current_index;
 
@@ -153,7 +153,7 @@ fn tokenize_comment(text: &str) -> Result<(TokenKind, usize), LexingError> {
         let comment = comment.trim_start();
         let comment = comment.trim_end();
 
-        return Ok((TokenKind::Comment(comment.to_owned()), chars_read + 2));
+        Ok((TokenKind::Comment(comment.to_owned()), chars_read + 2))
     }
 }
 

trixy/trixy-lang_parser/src/lib.rs

@@ -9,7 +9,10 @@ pub mod error;
 pub mod lexing;
 pub mod parsing;
 
-pub fn parse_trixy_lang(input: &str) -> Result<CommandSpec, TrixyError> {
-    let input_tokens = TokenStream::lex(input)?.parse()?;
+pub fn parse_trixy_lang(input: &str) -> Result<CommandSpec, Box<TrixyError>> {
+    let input_tokens = TokenStream::lex(input)
+        .map_err(|err| Box::new(err.into()))?
+        .parse()
+        .map_err(Into::<TrixyError>::into)?;
     Ok(input_tokens)
 }

trixy/trixy-lang_parser/src/parsing/checked/error.rs

@@ -37,7 +37,7 @@ impl AdditionalHelp for ParsingError {
 
 #[derive(Debug)]
 pub struct SpannedParsingError {
-    pub source: ParsingError,
+    pub source: Box<ParsingError>,
     pub context: ErrorContext,
 }
 

trixy/trixy-lang_parser/src/parsing/checked/mod.rs

@@ -37,7 +37,7 @@ impl TokenStream {
         let unchecked = self.parse_unchecked().map_err(|err| {
             let span = *err.source.span();
             SpannedParsingError {
-                source: ParsingError::from(err),
+                source: Box::new(ParsingError::from(err)),
                 context: ErrorContext::from_span(span, &original_file),
             }
         })?;
@@ -79,7 +79,7 @@ impl Parser {
         let namespace = self.process_namespace(namespace).map_err(|err| {
             let span = *err.span();
             SpannedParsingError {
-                source: err,
+                source: Box::new(err),
                 context: ErrorContext::from_span(span, &self.original_file),
             }
         })?;

trixy/trixy-lang_parser/src/parsing/checked/test.rs

@@ -132,7 +132,7 @@ fn test_failing() {
 fn execute_callback(callback: Name);
 ";
     let output = TokenStream::lex(&input).unwrap().parse();
-    match output.unwrap_err().source {
+    match *(output.unwrap_err().source) {
         super::error::ParsingError::TypeNotDeclared { r#type, .. } => {
             assert_eq!(
                 r#type,

trixy/trixy-lang_parser/src/parsing/unchecked/error.rs

@@ -68,7 +68,7 @@ impl AdditionalHelp for ParsingError {
 
 #[derive(Debug, Clone)]
 pub struct SpannedParsingError {
-    pub source: ParsingError,
+    pub source: Box<ParsingError>,
     pub context: ErrorContext,
 }
 

trixy/trixy-lang_parser/src/parsing/unchecked/mod.rs

@@ -45,7 +45,7 @@ impl Parser {
             let next = self.parse_next().map_err(|err| {
                 let span = err.get_span();
                 SpannedParsingError {
-                    source: err,
+                    source: Box::new(err),
                     context: ErrorContext::from_span(span, &self.token_stream.original_file),
                 }
             })?;
@@ -112,7 +112,7 @@ impl Parser {
                     actual: self.peek_raw().kind().clone(),
                 };
 
-                return Err(err);
+                Err(err)
             }
         }
     }
@@ -162,9 +162,11 @@ impl Parser {
         let attributes = self.parse_doc_comments()?;
         self.expect(token![nasp])?;
 
-        let mut namespace = Namespace::default();
-        namespace.name = self.expect(token![Ident])?;
-        namespace.attributes = attributes;
+        let mut namespace = Namespace {
+            name: self.expect(token![Ident])?,
+            attributes,
+            ..Default::default()
+        };
 
         self.expect(token![BraceOpen])?;
 
@@ -345,11 +347,7 @@ impl Parser {
             Some(ok) => ok,
             None => return false,
         };
-        if actual_token.kind().same_kind(&token) {
-            true
-        } else {
-            false
-        }
+        actual_token.kind().same_kind(&token)
     }
 
     /// Looks at the next token without removing it

trixy/trixy-lang_parser/src/parsing/unchecked/test.rs

@@ -19,7 +19,7 @@ nasp trinitrix { {}
 ";
     let parsed = TokenStream::lex(input).unwrap().parse_unchecked();
     let err = parsed.unwrap_err().source;
-    match err {
+    match *err {
         ParsingError::ExpectedKeyword { .. } => {}
         _ => panic!("Wrong error"),
     }