a lot of clippy::style fixes

crates/syntax/src/ast/edit.rs

@@ -595,7 +595,7 @@ impl IndentLevel {
     pub fn from_node(node: &SyntaxNode) -> IndentLevel {
         match node.first_token() {
             Some(it) => Self::from_token(&it),
-            None => return IndentLevel(0),
+            None => IndentLevel(0),
         }
     }
 

crates/syntax/src/ast/expr_ext.rs

@@ -11,16 +11,16 @@ impl ast::AttrsOwner for ast::Expr {}
 
 impl ast::Expr {
     pub fn is_block_like(&self) -> bool {
-        match self {
+        matches!(
+            self,
             ast::Expr::IfExpr(_)
-            | ast::Expr::LoopExpr(_)
-            | ast::Expr::ForExpr(_)
-            | ast::Expr::WhileExpr(_)
-            | ast::Expr::BlockExpr(_)
-            | ast::Expr::MatchExpr(_)
-            | ast::Expr::EffectExpr(_) => true,
-            _ => false,
-        }
+                | ast::Expr::LoopExpr(_)
+                | ast::Expr::ForExpr(_)
+                | ast::Expr::WhileExpr(_)
+                | ast::Expr::BlockExpr(_)
+                | ast::Expr::MatchExpr(_)
+                | ast::Expr::EffectExpr(_)
+        )
     }
 
     pub fn name_ref(&self) -> Option<ast::NameRef> {
@@ -151,20 +151,20 @@ pub enum BinOp {
 
 impl BinOp {
     pub fn is_assignment(self) -> bool {
-        match self {
+        matches!(
+            self,
             BinOp::Assignment
-            | BinOp::AddAssign
-            | BinOp::DivAssign
-            | BinOp::MulAssign
-            | BinOp::RemAssign
-            | BinOp::ShrAssign
-            | BinOp::ShlAssign
-            | BinOp::SubAssign
-            | BinOp::BitOrAssign
-            | BinOp::BitAndAssign
-            | BinOp::BitXorAssign => true,
-            _ => false,
-        }
+                | BinOp::AddAssign
+                | BinOp::DivAssign
+                | BinOp::MulAssign
+                | BinOp::RemAssign
+                | BinOp::ShrAssign
+                | BinOp::ShlAssign
+                | BinOp::SubAssign
+                | BinOp::BitOrAssign
+                | BinOp::BitAndAssign
+                | BinOp::BitXorAssign
+        )
     }
 }
 

crates/syntax/src/ast/node_ext.rs

@@ -58,10 +58,7 @@ impl From<ast::MacroDef> for Macro {
 
 impl AstNode for Macro {
     fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SyntaxKind::MACRO_RULES | SyntaxKind::MACRO_DEF => true,
-            _ => false,
-        }
+        matches!(kind, SyntaxKind::MACRO_RULES | SyntaxKind::MACRO_DEF)
     }
     fn cast(syntax: SyntaxNode) -> Option<Self> {
         let res = match syntax.kind() {
@@ -462,10 +459,8 @@ impl ast::FieldExpr {
     pub fn field_access(&self) -> Option<FieldKind> {
         if let Some(nr) = self.name_ref() {
             Some(FieldKind::Name(nr))
-        } else if let Some(tok) = self.index_token() {
-            Some(FieldKind::Index(tok))
         } else {
-            None
+            self.index_token().map(FieldKind::Index)
         }
     }
 }
@@ -482,16 +477,10 @@ impl ast::SlicePat {
         let prefix = args
             .peeking_take_while(|p| match p {
                 ast::Pat::RestPat(_) => false,
-                ast::Pat::IdentPat(bp) => match bp.pat() {
-                    Some(ast::Pat::RestPat(_)) => false,
-                    _ => true,
-                },
+                ast::Pat::IdentPat(bp) => !matches!(bp.pat(), Some(ast::Pat::RestPat(_))),
                 ast::Pat::RefPat(rp) => match rp.pat() {
                     Some(ast::Pat::RestPat(_)) => false,
-                    Some(ast::Pat::IdentPat(bp)) => match bp.pat() {
-                        Some(ast::Pat::RestPat(_)) => false,
-                        _ => true,
-                    },
+                    Some(ast::Pat::IdentPat(bp)) => !matches!(bp.pat(), Some(ast::Pat::RestPat(_))),
                     _ => true,
                 },
                 _ => true,

crates/syntax/src/ast/token_ext.rs

@@ -494,9 +494,8 @@ pub trait HasFormatSpecifier: AstToken {
                 }
                 _ => {
                     while let Some((_, Ok(next_char))) = chars.peek() {
-                        match next_char {
-                            '{' => break,
-                            _ => {}
+                        if next_char == &'{' {
+                            break;
                         }
                         chars.next();
                     }

crates/syntax/src/fuzz.rs

@@ -43,7 +43,7 @@ impl CheckReparse {
             TextRange::at(delete_start.try_into().unwrap(), delete_len.try_into().unwrap());
         let edited_text =
             format!("{}{}{}", &text[..delete_start], &insert, &text[delete_start + delete_len..]);
-        let edit = Indel { delete, insert };
+        let edit = Indel { insert, delete };
         Some(CheckReparse { text, edit, edited_text })
     }
 

crates/syntax/src/validation.rs

@@ -297,7 +297,7 @@ fn validate_path_keywords(segment: ast::PathSegment, errors: &mut Vec<SyntaxErro
                 }
             };
         }
-        return None;
+        None
     }
 
     fn all_supers(path: &ast::Path) -> bool {
@@ -314,7 +314,7 @@ fn validate_path_keywords(segment: ast::PathSegment, errors: &mut Vec<SyntaxErro
             return all_supers(subpath);
         }
 
-        return true;
+        true
     }
 }