diff --git a/.tool-versions b/.tool-versions
index 3d9584e7a..4d9e79309 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,4 +1,4 @@
-crystal 1.14.0
+crystal 1.15.0
 mint 0.20.0
 nodejs 20.10.0
 yarn 1.22.19
diff --git a/shard.lock b/shard.lock
index a75595756..abb332056 100644
--- a/shard.lock
+++ b/shard.lock
@@ -6,7 +6,7 @@ shards:
 
   ameba:
     git: https://github.com/crystal-ameba/ameba.git
-    version: 1.6.1
+    version: 1.6.4
 
   ansi-escapes:
     git: https://github.com/gtramontina/ansi-escapes.cr.git
diff --git a/shard.yml b/shard.yml
index 0577da5ef..3e6da16e6 100644
--- a/shard.yml
+++ b/shard.yml
@@ -27,7 +27,7 @@ dependencies:
 development_dependencies:
   ameba:
     github: crystal-ameba/ameba
-    version: ~> 1.6.1
+    version: ~> 1.6.4
 
 targets:
   mint:
diff --git a/src/ast.cr b/src/ast.cr
index e97ddf98f..8d960e27b 100644
--- a/src/ast.cr
+++ b/src/ast.cr
@@ -52,7 +52,7 @@ module Mint
       *,
       column : Int64,
       path : String,
-      line : Int64
+      line : Int64,
     ) : Array(Ast::Node)
       nodes_at_path(path).select!(&.contains?(line, column))
     end
diff --git a/src/ast/directives/file_based.cr b/src/ast/directives/file_based.cr
index 0a92f6f4c..4f666714d 100644
--- a/src/ast/directives/file_based.cr
+++ b/src/ast/directives/file_based.cr
@@ -25,7 +25,7 @@ module Mint
           @from : Parser::Location,
           @to : Parser::Location,
           @file : Parser::File,
-          @path : String
+          @path : String,
         )
         end
 
diff --git a/src/bundler.cr b/src/bundler.cr
index a3e6896d3..a14242da8 100644
--- a/src/bundler.cr
+++ b/src/bundler.cr
@@ -63,7 +63,7 @@ module Mint
 
       # Compile the CSS.
       files[path_for_asset("index.css")] =
-        ->do
+        -> do
           Logger.log "Generating index.css" do
             compiler.style_builder.compile
           end
@@ -299,7 +299,7 @@ module Mint
                 renderer.render(compiler.js.statements(items, line_count: 2)) + ";"
               end
 
-            files[path] = ->{ js }
+            files[path] = -> { js }
 
             {renderer, path, js}
           end
@@ -313,8 +313,8 @@ module Mint
               source_map =
                 SourceMapGenerator.new(renderer.mappings, js).generate
 
-              files[path] = ->{ "#{js}\n//# sourceMappingURL=#{File.basename(source_map_path)}" }
-              files[source_map_path] = ->{ source_map }
+              files[path] = -> { "#{js}\n//# sourceMappingURL=#{File.basename(source_map_path)}" }
+              files[source_map_path] = -> { source_map }
             end
           end
         end
@@ -322,7 +322,7 @@ module Mint
     end
 
     def generate_index_html
-      files["/index.html"] = ->do
+      files["/index.html"] = -> do
         HtmlBuilder.build(optimize: config.optimize) do
           html do
             head do
@@ -393,7 +393,7 @@ module Mint
     end
 
     def generate_manifest
-      files["/manifest.webmanifest"] = ->do
+      files["/manifest.webmanifest"] = -> do
         icons =
           if generate_icons?
             ICON_SIZES.map do |size|
@@ -430,7 +430,7 @@ module Mint
 
       ICON_SIZES.each do |size|
         files[path_for_asset("icon-#{size}x#{size}.png")] =
-          ->{ IconGenerator.convert(json.application.icon, size) }
+          -> { IconGenerator.convert(json.application.icon, size) }
       end
     end
 
@@ -443,7 +443,7 @@ module Mint
           path =
             path_for_asset(asset.filename(build: config.hash_assets))
 
-          files[path] = ->{ asset.file_contents }
+          files[path] = -> { asset.file_contents }
         end
 
       if Dir.exists?(PUBLIC_DIR)
@@ -453,23 +453,23 @@ module Mint
           parts =
             Path[path].parts.tap(&.shift)
 
-          files["/#{parts.join("/")}"] = ->{ File.read(path) }
+          files["/#{parts.join("/")}"] = -> { File.read(path) }
         end
       end
 
       files[path_for_asset("runtime.js")] =
         if runtime_path = config.runtime_path
           # TODO: Raise if runtime not found
-          ->{ File.read(runtime_path) }
+          -> { File.read(runtime_path) }
         elsif config.test
-          ->{ Assets.read("runtime_test.js") }
+          -> { Assets.read("runtime_test.js") }
         else
-          ->{ Assets.read("runtime.js") }
+          -> { Assets.read("runtime.js") }
         end
 
       if config.live_reload
         files[path_for_asset("live-reload.js")] =
-          ->{ Assets.read("live-reload.js") }
+          -> { Assets.read("live-reload.js") }
       end
     end
 
diff --git a/src/commands/build.cr b/src/commands/build.cr
index c184770b2..3a636d235 100644
--- a/src/commands/build.cr
+++ b/src/commands/build.cr
@@ -89,7 +89,7 @@ module Mint
                     content.bytesize
 
                   proc =
-                    ->{ File.write_p(Path[DIST_DIR, chopped], content) }
+                    -> { File.write_p(Path[DIST_DIR, chopped], content) }
 
                   bundle_size +=
                     size
diff --git a/src/compiler/js.cr b/src/compiler/js.cr
index b5f246f01..8cb1b1948 100644
--- a/src/compiler/js.cr
+++ b/src/compiler/js.cr
@@ -119,7 +119,7 @@ module Mint
       # Renders an initializer.
       def new(
         name : Item | Compiled,
-        items : Array(Compiled) = [] of Compiled
+        items : Array(Compiled) = [] of Compiled,
       ) : Compiled
         ["new "] + call(name, items)
       end
@@ -156,7 +156,7 @@ module Mint
       def tenary(
         condition : Compiled,
         truthy : Compiled,
-        falsy : Compiled
+        falsy : Compiled,
       ) : Compiled
         ["("] +
           condition +
@@ -198,7 +198,7 @@ module Mint
       private def list(
         arguments : Array(Compiled),
         *,
-        multiline : Bool = false
+        multiline : Bool = false,
       ) : Compiled
         if multiline
           join(arguments, ",\n")
diff --git a/src/compiler/renderer.cr b/src/compiler/renderer.cr
index fdf565eb8..1f8e254f6 100644
--- a/src/compiler/renderer.cr
+++ b/src/compiler/renderer.cr
@@ -50,7 +50,7 @@ module Mint
         @asset_path,
         @bundles,
         @pool,
-        @base
+        @base,
       )
       end
 
diff --git a/src/compilers/case.cr b/src/compilers/case.cr
index eb603ae6b..87c48dbbb 100644
--- a/src/compilers/case.cr
+++ b/src/compilers/case.cr
@@ -2,7 +2,7 @@ module Mint
   class Compiler
     def compile(
       node : Ast::Case,
-      block : Proc(String, String)? = nil
+      block : Proc(String, String)? = nil,
     ) : Compiled
       compile node do
         condition =
diff --git a/src/compilers/case_branch.cr b/src/compilers/case_branch.cr
index f6d236ba3..80bd847ca 100644
--- a/src/compilers/case_branch.cr
+++ b/src/compilers/case_branch.cr
@@ -2,7 +2,7 @@ module Mint
   class Compiler
     def compile(
       node : Ast::CaseBranch,
-      block : Proc(String, String)? = nil
+      block : Proc(String, String)? = nil,
     ) : Compiled
       compile node do
         expression =
diff --git a/src/compilers/destructuring.cr b/src/compilers/destructuring.cr
index 8d10c66bc..d8acbf0dc 100644
--- a/src/compilers/destructuring.cr
+++ b/src/compilers/destructuring.cr
@@ -32,7 +32,7 @@ module Mint
 
     def destructuring(
       node : Ast::TypeDestructuring,
-      variables : Array(Compiled)
+      variables : Array(Compiled),
     ) : Compiled
       case item = lookups[node][0]
       when Ast::TypeVariant
@@ -51,7 +51,7 @@ module Mint
 
     def match(
       condition : Ast::Node,
-      branches : Array(Tuple(Ast::Node?, Compiled))
+      branches : Array(Tuple(Ast::Node?, Compiled)),
     ) : Compiled
       items =
         branches.map do |(pattern, expression)|
diff --git a/src/compilers/function.cr b/src/compilers/function.cr
index 09509191a..8869f29af 100644
--- a/src/compilers/function.cr
+++ b/src/compilers/function.cr
@@ -16,7 +16,7 @@ module Mint
       node : Ast::Function, *,
       contents : Compiled | Nil = nil,
       args : Array(Compiled) | Nil = nil,
-      skip_const : Bool = false
+      skip_const : Bool = false,
     ) : Compiled
       items =
         [] of Compiled
diff --git a/src/compilers/html_attribute.cr b/src/compilers/html_attribute.cr
index 9208608cb..2f5b23da6 100644
--- a/src/compilers/html_attribute.cr
+++ b/src/compilers/html_attribute.cr
@@ -2,7 +2,7 @@ module Mint
   class Compiler
     def resolve(
       node : Ast::HtmlAttribute, *,
-      is_element = true
+      is_element = true,
     ) : Hash(Item, Compiled)
       value =
         compile node.value
diff --git a/src/compilers/if.cr b/src/compilers/if.cr
index 98b8ce6df..10f71f53b 100644
--- a/src/compilers/if.cr
+++ b/src/compilers/if.cr
@@ -2,7 +2,7 @@ module Mint
   class Compiler
     def compile(
       items : Array(Ast::CssDefinition),
-      block : Proc(String, String)?
+      block : Proc(String, String)?,
     ) : Compiled
       compiled =
         items.each_with_object({} of String => Compiled) do |definition, memo|
@@ -24,7 +24,7 @@ module Mint
 
     def compile(
       node : Ast::If,
-      block : Proc(String, String)? = nil
+      block : Proc(String, String)? = nil,
     ) : Compiled
       compile node do
         truthy_item, falsy_item =
diff --git a/src/compilers/string.cr b/src/compilers/string.cr
index 013f449e9..95bafbc57 100644
--- a/src/compilers/string.cr
+++ b/src/compilers/string.cr
@@ -2,7 +2,7 @@ module Mint
   class Compiler
     def compile(
       value : Array(Ast::Node | String), *,
-      quote_string : Bool = false
+      quote_string : Bool = false,
     ) : Compiled
       if value.any?(Ast::Node)
         value.map do |part|
diff --git a/src/documentation_generator.cr b/src/documentation_generator.cr
index f9ba43089..bc3972e75 100644
--- a/src/documentation_generator.cr
+++ b/src/documentation_generator.cr
@@ -46,7 +46,7 @@ module Mint
         *,
         @value = nil,
         @type = nil,
-        @name
+        @name,
       )
       end
     end
@@ -90,7 +90,7 @@ module Mint
         @type = nil,
         @broken,
         @name,
-        @kind
+        @kind,
       )
       end
     end
@@ -127,7 +127,7 @@ module Mint
         @flags = nil,
         link = nil,
         @name,
-        @kind
+        @kind,
       )
         @link = link || @name
       end
@@ -325,7 +325,7 @@ module Mint
       mapping : String? = nil,
       type : Ast::Node? = nil,
       name : String,
-      kind : Kind
+      kind : Kind,
     )
       formatted_value =
         @@formatter.format!(value)
diff --git a/src/error_message.cr b/src/error_message.cr
index 666c86ab5..b0d0b0421 100644
--- a/src/error_message.cr
+++ b/src/error_message.cr
@@ -4,10 +4,10 @@ module Mint
       files = {} of String => Proc(String)
 
       files["/live-reload.js"] =
-        ->{ Assets.read("live-reload.js") } if live_reload
+        -> { Assets.read("live-reload.js") } if live_reload
 
       files["/index.html"] =
-        ->do
+        -> do
           HtmlBuilder.build(optimize: true) do
             html do
               head do
@@ -29,7 +29,7 @@ module Mint
 
       Assets.files.each do |file|
         next unless file.path.starts_with?("/error_message/")
-        files[file.path.lchop("/error_message")] = ->{ Assets.read(file.path) }
+        files[file.path.lchop("/error_message")] = -> { Assets.read(file.path) }
       end
 
       files
diff --git a/src/errorable.cr b/src/errorable.cr
index 4bdc755dd..fc36ef3f8 100644
--- a/src/errorable.cr
+++ b/src/errorable.cr
@@ -108,7 +108,7 @@ module Mint
 
     def expected(
       subject : TypeChecker::Checkable | String,
-      got : TypeChecker::Checkable
+      got : TypeChecker::Checkable,
     )
       snippet "I was expecting:", subject
       snippet "Instead it is:", got
diff --git a/src/exhaustiveness_checker.cr b/src/exhaustiveness_checker.cr
index 04e0d0326..101854c52 100644
--- a/src/exhaustiveness_checker.cr
+++ b/src/exhaustiveness_checker.cr
@@ -257,7 +257,7 @@ module ExhaustivenessChecker
     def add_missing_patterns(
       node : Decision,
       terms : Array(Term),
-      missing : Set(String)
+      missing : Set(String),
     )
       case node
       in Success
@@ -513,7 +513,7 @@ module ExhaustivenessChecker
     def compile_constructor_cases(
       rows : Array(Row),
       branch_var : Variable,
-      cases : Array(Tuple(Constructor, Array(Variable), Array(Row)))
+      cases : Array(Tuple(Constructor, Array(Variable), Array(Row))),
     ) : Array(Case)
       rows.each do |row|
         # This row had the branching variable.
@@ -584,7 +584,7 @@ module ExhaustivenessChecker
     #
     def compile_infinite_cases(
       rows : Array(Row),
-      branch_var : Variable
+      branch_var : Variable,
     ) : Tuple(Array(Case), Decision)
       raw_cases =
         [] of Tuple(Constructor, Array(Variable), Array(Row))
@@ -654,7 +654,7 @@ module ExhaustivenessChecker
     def compile_array_cases(
       rows : Array(Row),
       branch_var : Variable,
-      type : Checkable
+      type : Checkable,
     ) : Decision
       rest_var =
         new_variable(branch_var.type)
diff --git a/src/formatter.cr b/src/formatter.cr
index 45b5c9dcc..5b1d62ee2 100644
--- a/src/formatter.cr
+++ b/src/formatter.cr
@@ -148,7 +148,7 @@ module Mint
 
     def format_arguments(
       nodes : Array(Ast::Node), *,
-      empty_parenthesis = true
+      empty_parenthesis = true,
     ) : Nodes
       return empty_parenthesis ? ["()"] of Node : [] of Node if nodes.empty?
 
diff --git a/src/formatters/html.cr b/src/formatters/html.cr
index 704eadc60..0cc06ebf2 100644
--- a/src/formatters/html.cr
+++ b/src/formatters/html.cr
@@ -4,7 +4,7 @@ module Mint
       *,
       node : Ast::HtmlElement | Ast::HtmlComponent,
       prefix : Nodes,
-      tag : Nodes
+      tag : Nodes,
     ) : Nodes
       child_nodes =
         node.children + node.comments
diff --git a/src/formatters/list.cr b/src/formatters/list.cr
index 62438c6c4..f21fc5dfc 100644
--- a/src/formatters/list.cr
+++ b/src/formatters/list.cr
@@ -3,7 +3,7 @@ module Mint
     def list(
       nodes : Array(Ast::Node),
       separator : String? = nil,
-      comment : Nodes? = nil
+      comment : Nodes? = nil,
     ) : Nodes
       [
         List.new(
diff --git a/src/formatters/regexp_literal.cr b/src/formatters/regexp_literal.cr
index 4ae95ed70..a8dcf5463 100644
--- a/src/formatters/regexp_literal.cr
+++ b/src/formatters/regexp_literal.cr
@@ -1,7 +1,7 @@
 module Mint
   class Formatter
     def format(node : Ast::RegexpLiteral) : Nodes
-      format("/#{node.value}/#{node.flags.split.uniq.join}")
+      format("/#{node.value}/#{node.flags.split.uniq!.join}")
     end
   end
 end
diff --git a/src/helpers.cr b/src/helpers.cr
index 0a915d4b9..3ea82f28e 100644
--- a/src/helpers.cr
+++ b/src/helpers.cr
@@ -78,7 +78,7 @@ module Mint
       when Ast::Statement
         static_value(node.expression)
       when Ast::RegexpLiteral
-        "/#{node.value}/#{node.flags.split.uniq.join}"
+        "/#{node.value}/#{node.flags.split.uniq!.join}"
       when Ast::TupleLiteral,
            Ast::ArrayLiteral
         "[#{static_value(node.items, ',')}]"
diff --git a/src/ls/completion.cr b/src/ls/completion.cr
index 7b2a7a494..231270e76 100644
--- a/src/ls/completion.cr
+++ b/src/ls/completion.cr
@@ -18,7 +18,7 @@ module Mint
         *,
         @type_checker : TypeChecker | Nil,
         @snippet_support : Bool,
-        @workspace : Workspace
+        @workspace : Workspace,
       )
       end
 
diff --git a/src/ls/definitions.cr b/src/ls/definitions.cr
index b8092802f..e0b0d5569 100644
--- a/src/ls/definitions.cr
+++ b/src/ls/definitions.cr
@@ -5,7 +5,7 @@ module Mint
         *,
         @params : LSP::TextDocumentPositionParams,
         @type_checker : TypeChecker,
-        @stack : Array(Ast::Node)
+        @stack : Array(Ast::Node),
       )
       end
 
diff --git a/src/ls/hover.cr b/src/ls/hover.cr
index f85eb0fc3..3e1ad8ca3 100644
--- a/src/ls/hover.cr
+++ b/src/ls/hover.cr
@@ -8,7 +8,7 @@ module Mint
       def hover(
         node : Nil,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         ["This should not happen! Please create an issue about this!"]
       end
@@ -17,7 +17,7 @@ module Mint
       def hover(
         node : Ast::Node,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         type =
           type_of(node, type_checker)
diff --git a/src/ls/hover/access.cr b/src/ls/hover/access.cr
index d8f3fb9c7..d2829a57a 100644
--- a/src/ls/hover/access.cr
+++ b/src/ls/hover/access.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Access,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         if item = type_checker.variables[node]?
           case item[1]
diff --git a/src/ls/hover/argument.cr b/src/ls/hover/argument.cr
index 8abc3c05f..e4ed0441b 100644
--- a/src/ls/hover/argument.cr
+++ b/src/ls/hover/argument.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Argument,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         type =
           workspace.format(node.type)
diff --git a/src/ls/hover/component.cr b/src/ls/hover/component.cr
index e8c62938f..a9a98c9dd 100644
--- a/src/ls/hover/component.cr
+++ b/src/ls/hover/component.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Component,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         properties =
           node
diff --git a/src/ls/hover/css_definition.cr b/src/ls/hover/css_definition.cr
index 58adeebeb..08c3d5067 100644
--- a/src/ls/hover/css_definition.cr
+++ b/src/ls/hover/css_definition.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::CssDefinition,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         path =
           URI.encode_path(node.name)
diff --git a/src/ls/hover/function.cr b/src/ls/hover/function.cr
index f37523bca..f09db902e 100644
--- a/src/ls/hover/function.cr
+++ b/src/ls/hover/function.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Function,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         ast =
           type_checker.artifacts.ast
diff --git a/src/ls/hover/get.cr b/src/ls/hover/get.cr
index 57e7eaf58..12e1087a3 100644
--- a/src/ls/hover/get.cr
+++ b/src/ls/hover/get.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Get,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         ast =
           type_checker.artifacts.ast
diff --git a/src/ls/hover/html_attribute.cr b/src/ls/hover/html_attribute.cr
index 854f7da6d..540c198a4 100644
--- a/src/ls/hover/html_attribute.cr
+++ b/src/ls/hover/html_attribute.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::HtmlAttribute,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         type =
           type_of(node, type_checker)
diff --git a/src/ls/hover/html_component.cr b/src/ls/hover/html_component.cr
index 8b0e85087..b60228f8e 100644
--- a/src/ls/hover/html_component.cr
+++ b/src/ls/hover/html_component.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::HtmlComponent,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         component =
           type_checker.lookups[node]?.try(&.first?)
diff --git a/src/ls/hover/html_element.cr b/src/ls/hover/html_element.cr
index 966258ef8..0c636068b 100644
--- a/src/ls/hover/html_element.cr
+++ b/src/ls/hover/html_element.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::HtmlElement,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         path =
           URI.encode_path(node.tag.value)
diff --git a/src/ls/hover/property.cr b/src/ls/hover/property.cr
index d62d9d39a..c2ef09f1d 100644
--- a/src/ls/hover/property.cr
+++ b/src/ls/hover/property.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Property,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         default =
           node.default.try do |item|
diff --git a/src/ls/hover/state.cr b/src/ls/hover/state.cr
index 6a4d25b1c..d2c36c938 100644
--- a/src/ls/hover/state.cr
+++ b/src/ls/hover/state.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::State,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         default =
           " = #{workspace.format(node.default)}"
diff --git a/src/ls/hover/statement.cr b/src/ls/hover/statement.cr
index 9f2fda650..158869621 100644
--- a/src/ls/hover/statement.cr
+++ b/src/ls/hover/statement.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Statement,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         type =
           type_of(node, type_checker)
diff --git a/src/ls/hover/string_literal.cr b/src/ls/hover/string_literal.cr
index 6e62dc698..cf6459532 100644
--- a/src/ls/hover/string_literal.cr
+++ b/src/ls/hover/string_literal.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::StringLiteral,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         ["String"]
       end
diff --git a/src/ls/hover/type.cr b/src/ls/hover/type.cr
index d29f849b5..f568a2ba7 100644
--- a/src/ls/hover/type.cr
+++ b/src/ls/hover/type.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::Type,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         definition =
           type_checker
diff --git a/src/ls/hover/type_definition.cr b/src/ls/hover/type_definition.cr
index 26ea35088..0e55831a4 100644
--- a/src/ls/hover/type_definition.cr
+++ b/src/ls/hover/type_definition.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::TypeDefinition,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         parameters =
           "" # workspace.formatter.format_parameters(node.parameters)
diff --git a/src/ls/hover/type_destructuring.cr b/src/ls/hover/type_destructuring.cr
index 3f4374789..255e87373 100644
--- a/src/ls/hover/type_destructuring.cr
+++ b/src/ls/hover/type_destructuring.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::TypeDestructuring,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         item =
           type_checker.lookups[node].try(&.first?)
diff --git a/src/ls/hover/type_variant.cr b/src/ls/hover/type_variant.cr
index 4cb648a04..70cecd99d 100644
--- a/src/ls/hover/type_variant.cr
+++ b/src/ls/hover/type_variant.cr
@@ -4,7 +4,7 @@ module Mint
       def hover(
         node : Ast::TypeVariant,
         workspace : Workspace,
-        type_checker : TypeChecker
+        type_checker : TypeChecker,
       ) : Array(String)
         item =
           type_checker
diff --git a/src/lsp/protocol/code_action.cr b/src/lsp/protocol/code_action.cr
index fcb2e6745..e8ef6cc20 100644
--- a/src/lsp/protocol/code_action.cr
+++ b/src/lsp/protocol/code_action.cr
@@ -78,7 +78,7 @@ module LSP
       @is_preferred = false,
       @disabled = nil,
       @command = nil,
-      @data = nil
+      @data = nil,
     )
     end
   end
diff --git a/src/lsp/protocol/server_capabilities.cr b/src/lsp/protocol/server_capabilities.cr
index d3d1e18ca..cb6e14007 100644
--- a/src/lsp/protocol/server_capabilities.cr
+++ b/src/lsp/protocol/server_capabilities.cr
@@ -127,7 +127,7 @@ module LSP
       @rename_provider,
       @color_provider,
       @hover_provider,
-      @workspace
+      @workspace,
     )
     end
   end
diff --git a/src/lsp/protocol/text_document_sync_options.cr b/src/lsp/protocol/text_document_sync_options.cr
index b6d16cbd3..3fdda14ed 100644
--- a/src/lsp/protocol/text_document_sync_options.cr
+++ b/src/lsp/protocol/text_document_sync_options.cr
@@ -27,7 +27,7 @@ module LSP
       @open_close,
       @will_save,
       @change,
-      @save
+      @save,
     )
     end
   end
diff --git a/src/mint_json.cr b/src/mint_json.cr
index 1a7056c4f..721b93047 100644
--- a/src/mint_json.cr
+++ b/src/mint_json.cr
@@ -21,7 +21,7 @@ module Mint
         @meta,
         @name,
         @head,
-        @icon
+        @icon,
       )
       end
     end
@@ -42,7 +42,7 @@ module Mint
       @application,
       @formatter,
       @name,
-      @path
+      @path,
     )
     end
 
diff --git a/src/mint_json/parser.cr b/src/mint_json/parser.cr
index 1a3edee2a..c8c1fc038 100644
--- a/src/mint_json/parser.cr
+++ b/src/mint_json/parser.cr
@@ -62,7 +62,7 @@ module Mint
         column_number : Int32,
         line_number : Int32,
         contents : String,
-        path : String
+        path : String,
       )
         position =
           if line_number - 1 == 0
diff --git a/src/parsers/case.cr b/src/parsers/case.cr
index fb79f096d..e980a34f4 100644
--- a/src/parsers/case.cr
+++ b/src/parsers/case.cr
@@ -21,11 +21,11 @@ module Mint
         whitespace
 
         body = brackets(
-          ->{ error :case_expected_opening_bracket do
+          -> { error :case_expected_opening_bracket do
             expected "the opening bracket of a case", word
             snippet self
           end },
-          ->{ error :case_expected_closing_bracket do
+          -> { error :case_expected_closing_bracket do
             expected "the closing bracket of a case", word
             snippet self
           end },
diff --git a/src/parsers/component.cr b/src/parsers/component.cr
index 2e394ef48..2ae17d5b6 100644
--- a/src/parsers/component.cr
+++ b/src/parsers/component.cr
@@ -26,11 +26,11 @@ module Mint
         whitespace
 
         body = brackets(
-          ->{ error :component_expected_opening_bracket do
+          -> { error :component_expected_opening_bracket do
             expected "the opening bracket of the component", word
             snippet self
           end },
-          ->{ error :component_expected_closing_bracket do
+          -> { error :component_expected_closing_bracket do
             expected "the closing bracket of the component", word
             snippet self
           end },
diff --git a/src/parsers/connect.cr b/src/parsers/connect.cr
index 97473d21d..7473e32f0 100644
--- a/src/parsers/connect.cr
+++ b/src/parsers/connect.cr
@@ -19,11 +19,11 @@ module Mint
 
         keys =
           brackets(
-            ->{ error :connect_expected_opening_bracket do
+            -> { error :connect_expected_opening_bracket do
               expected "the opening bracket of a connect", word
               snippet self
             end },
-            ->{ error :connect_expected_closing_bracket do
+            -> { error :connect_expected_closing_bracket do
               expected "the closing bracket of a connect", word
               snippet self
             end },
diff --git a/src/parsers/css_font_face.cr b/src/parsers/css_font_face.cr
index 22b6df7fb..42d757859 100644
--- a/src/parsers/css_font_face.cr
+++ b/src/parsers/css_font_face.cr
@@ -7,11 +7,11 @@ module Mint
 
         definitions =
           brackets(
-            ->{ error :css_font_face_expected_opening_bracket do
+            -> { error :css_font_face_expected_opening_bracket do
               expected "the opening bracket of a CSS font-face rule", word
               snippet self
             end },
-            ->{ error :css_font_face_expected_closing_bracket do
+            -> { error :css_font_face_expected_closing_bracket do
               expected "the closing bracket of a CSS font-face rule", word
               snippet self
             end },
diff --git a/src/parsers/css_keyframes.cr b/src/parsers/css_keyframes.cr
index c883500a3..6e7264719 100644
--- a/src/parsers/css_keyframes.cr
+++ b/src/parsers/css_keyframes.cr
@@ -14,11 +14,11 @@ module Mint
         end unless name
 
         selectors = brackets(
-          ->{ error :css_keyframes_expected_opening_bracket do
+          -> { error :css_keyframes_expected_opening_bracket do
             expected "the opening bracket of a CSS keyframes rule", word
             snippet self
           end },
-          ->{ error :css_keyframes_expected_closing_bracket do
+          -> { error :css_keyframes_expected_closing_bracket do
             expected "the closing bracket of a CSS keyframes rule", word
             snippet self
           end },
diff --git a/src/parsers/css_nested_at.cr b/src/parsers/css_nested_at.cr
index 7e38c9c84..a39049ec0 100644
--- a/src/parsers/css_nested_at.cr
+++ b/src/parsers/css_nested_at.cr
@@ -15,11 +15,11 @@ module Mint
 
         body =
           brackets(
-            ->{ error :css_nested_at_expected_opening_bracket do
+            -> { error :css_nested_at_expected_opening_bracket do
               expected "the opening bracket of a CSS at rule", word
               snippet self
             end },
-            ->{ error :css_nested_at_expected_closing_bracket do
+            -> { error :css_nested_at_expected_closing_bracket do
               expected "the closing bracket of a CSS at rule", word
               snippet self
             end },
diff --git a/src/parsers/css_selector.cr b/src/parsers/css_selector.cr
index 53476e730..d0af2bc9d 100644
--- a/src/parsers/css_selector.cr
+++ b/src/parsers/css_selector.cr
@@ -14,11 +14,11 @@ module Mint
 
         body =
           brackets(
-            ->{ error :css_selector_expected_opening_bracket do
+            -> { error :css_selector_expected_opening_bracket do
               expected "the opening bracket of a CSS selector", word
               snippet self
             end },
-            ->{ error :css_selector_expected_closing_bracket do
+            -> { error :css_selector_expected_closing_bracket do
               expected "the opening closing of a CSS selector", word
               snippet self
             end },
diff --git a/src/parsers/directives/format.cr b/src/parsers/directives/format.cr
index 76769bf7b..d3bfa3490 100644
--- a/src/parsers/directives/format.cr
+++ b/src/parsers/directives/format.cr
@@ -7,15 +7,15 @@ module Mint
 
         content =
           block(
-            ->{ error :format_directive_expected_opening_bracket do
+            -> { error :format_directive_expected_opening_bracket do
               expected "the opening bracket of a format directive", word
               snippet self
             end },
-            ->{ error :format_directive_expected_closing_bracket do
+            -> { error :format_directive_expected_closing_bracket do
               expected "the closing bracket of a format directive", word
               snippet self
             end },
-            ->{ error :format_directive_expected_body do
+            -> { error :format_directive_expected_body do
               expected "the body of a format directive", word
               snippet self
             end })
diff --git a/src/parsers/directives/highlight.cr b/src/parsers/directives/highlight.cr
index a789f5238..269eb3085 100644
--- a/src/parsers/directives/highlight.cr
+++ b/src/parsers/directives/highlight.cr
@@ -7,15 +7,15 @@ module Mint
 
         content =
           block(
-            ->{ error :highlight_directive_expected_opening_bracket do
+            -> { error :highlight_directive_expected_opening_bracket do
               expected "the opening bracket of a highlight directive", word
               snippet self
             end },
-            ->{ error :highlight_directive_expected_closing_bracket do
+            -> { error :highlight_directive_expected_closing_bracket do
               expected "the closing bracket of a highlight directive", word
               snippet self
             end },
-            ->{ error :highlight_directive_expected_body do
+            -> { error :highlight_directive_expected_body do
               expected "the body of a highlight directive", word
               snippet self
             end })
diff --git a/src/parsers/for.cr b/src/parsers/for.cr
index 53f0341cb..2143a78ed 100644
--- a/src/parsers/for.cr
+++ b/src/parsers/for.cr
@@ -37,15 +37,15 @@ module Mint
 
         body =
           block(
-            ->{ error :for_expected_opening_bracket do
+            -> { error :for_expected_opening_bracket do
               expected "the opening bracket of a for expression", word
               snippet self
             end },
-            ->{ error :for_expected_closing_bracket do
+            -> { error :for_expected_closing_bracket do
               expected "the closing bracket of a for expression", word
               snippet self
             end },
-            ->{ error :for_expected_body do
+            -> { error :for_expected_body do
               expected "the body of a for expression", word
               snippet self
             end })
@@ -58,15 +58,15 @@ module Mint
             whitespace
 
             block(
-              ->{ error :for_condition_expected_opening_bracket do
+              -> { error :for_condition_expected_opening_bracket do
                 expected "the opening bracket of a for condition", word
                 snippet self
               end },
-              ->{ error :for_condition_expected_closing_bracket do
+              -> { error :for_condition_expected_closing_bracket do
                 expected "the closing bracket of a for condition", word
                 snippet self
               end },
-              ->{
+              -> {
                 error :for_condition_expected_body do
                   expected "the body of a for condition", word
                   snippet self
diff --git a/src/parsers/function.cr b/src/parsers/function.cr
index bc4763025..ea51dccc3 100644
--- a/src/parsers/function.cr
+++ b/src/parsers/function.cr
@@ -43,15 +43,15 @@ module Mint
 
         body =
           block(
-            ->{ error :function_expected_opening_bracket do
+            -> { error :function_expected_opening_bracket do
               expected "the opening bracket of a function", word
               snippet self
             end },
-            ->{ error :function_expected_closing_bracket do
+            -> { error :function_expected_closing_bracket do
               expected "the closing bracket of a function", word
               snippet self
             end },
-            ->{ error :function_expected_expression do
+            -> { error :function_expected_expression do
               expected "the body of a function", word
               snippet self
             end })
diff --git a/src/parsers/get.cr b/src/parsers/get.cr
index 1a39fe1c5..455527977 100644
--- a/src/parsers/get.cr
+++ b/src/parsers/get.cr
@@ -27,15 +27,15 @@ module Mint
           end
 
         body =
-          block(->{ error :get_expected_opening_bracket do
+          block(-> { error :get_expected_opening_bracket do
             expected "the opening bracket of a get", word
             snippet self
           end },
-            ->{ error :get_expected_closing_bracket do
+            -> { error :get_expected_closing_bracket do
               expected "the closing bracket of a get", word
               snippet self
             end },
-            ->{ error :get_expected_expression do
+            -> { error :get_expected_expression do
               expected "the body of a get", word
               snippet self
             end })
diff --git a/src/parsers/html_attribute.cr b/src/parsers/html_attribute.cr
index 649326b56..2a6d1d161 100644
--- a/src/parsers/html_attribute.cr
+++ b/src/parsers/html_attribute.cr
@@ -18,15 +18,15 @@ module Mint
             string_literal ||
             array_literal ||
             block(
-              ->{ error :html_attribute_expected_opening_bracket do
+              -> { error :html_attribute_expected_opening_bracket do
                 expected "the opening bracket of an HTML attribute", word
                 snippet self
               end },
-              ->{ error :html_attribute_expected_closing_bracket do
+              -> { error :html_attribute_expected_closing_bracket do
                 expected "the closing bracket of an HTML attribute", word
                 snippet self
               end },
-              ->{ error :html_attribute_expected_expression do
+              -> { error :html_attribute_expected_expression do
                 expected "the expression of an HTML attribute", word
                 snippet self
               end })
diff --git a/src/parsers/html_body.cr b/src/parsers/html_body.cr
index c6e2d81fa..c2518fbec 100644
--- a/src/parsers/html_body.cr
+++ b/src/parsers/html_body.cr
@@ -5,7 +5,7 @@ module Mint
       expected_closing_bracket : Proc(Nil),
       expected_closing_tag : Proc(Nil),
       tag : Ast::Variable | Ast::Id,
-      with_dashes : Bool
+      with_dashes : Bool,
     )
       parse(track: false) do
         attributes = many { html_attribute(with_dashes) }
diff --git a/src/parsers/html_component.cr b/src/parsers/html_component.cr
index ec5efe115..e915b87df 100644
--- a/src/parsers/html_component.cr
+++ b/src/parsers/html_component.cr
@@ -23,13 +23,13 @@ module Mint
           html_body(
             with_dashes: false,
             tag: component,
-            expected_closing_bracket: ->{
+            expected_closing_bracket: -> {
               error :html_component_expected_closing_bracket do
                 expected "the closing bracket of a HTML component", word
                 snippet self
               end
             },
-            expected_closing_tag: ->{
+            expected_closing_tag: -> {
               error :html_component_expected_closing_tag do
                 expected "the closing tag of a HTML component", word
                 snippet self
diff --git a/src/parsers/html_element.cr b/src/parsers/html_element.cr
index 1a3e22072..52690a477 100644
--- a/src/parsers/html_element.cr
+++ b/src/parsers/html_element.cr
@@ -38,13 +38,13 @@ module Mint
           html_body(
             with_dashes: true,
             tag: tag,
-            expected_closing_bracket: ->{
+            expected_closing_bracket: -> {
               error :html_element_expected_closing_bracket do
                 expected "the closing bracket of an HTML element", word
                 snippet self
               end
             },
-            expected_closing_tag: ->{
+            expected_closing_tag: -> {
               error :html_element_expected_closing_tag do
                 expected "the closing tag of an HTML element", word
                 snippet self
diff --git a/src/parsers/if.cr b/src/parsers/if.cr
index 8883ecd4e..209425c19 100644
--- a/src/parsers/if.cr
+++ b/src/parsers/if.cr
@@ -13,16 +13,16 @@ module Mint
 
         truthy =
           block(
-            ->{ error :if_expected_truthy_opening_bracket do
+            -> { error :if_expected_truthy_opening_bracket do
               expected "the opening bracket of the truthy branch", word
               snippet self
             end },
-            ->{ error :if_expected_truthy_closing_bracket do
+            -> { error :if_expected_truthy_closing_bracket do
               expected "the closing bracket of the truthy branch", word
               snippet self
             end },
 
-            ->{ error :if_expected_truthy_expression do
+            -> { error :if_expected_truthy_expression do
               expected "an expression for the truthy branch", word
               snippet self
             end }) { for_css ? css_definition : comment || statement }
@@ -38,15 +38,15 @@ module Mint
           unless falsy = if_expression(for_css: for_css)
             falsy =
               block(
-                ->{ error :if_expected_else_opening_bracket do
+                -> { error :if_expected_else_opening_bracket do
                   expected "the opening bracket of the else branch", word
                   snippet self
                 end },
-                ->{ error :if_expected_else_closing_bracket do
+                -> { error :if_expected_else_closing_bracket do
                   expected "the closing bracket of the else branch", word
                   snippet self
                 end },
-                ->{ error :if_expected_else_expression do
+                -> { error :if_expected_else_expression do
                   expected "an expression for the else branch", word
                   snippet self
                 end }) { for_css ? css_definition : comment || statement }
diff --git a/src/parsers/inline_function.cr b/src/parsers/inline_function.cr
index f7149c2e8..6fac1d036 100644
--- a/src/parsers/inline_function.cr
+++ b/src/parsers/inline_function.cr
@@ -30,15 +30,15 @@ module Mint
 
         body =
           block(
-            ->{ error :inline_function_expected_opening_bracket do
+            -> { error :inline_function_expected_opening_bracket do
               expected "the opening bracket of an inline function", word
               snippet self
             end },
-            ->{ error :inline_function_expected_closing_bracket do
+            -> { error :inline_function_expected_closing_bracket do
               expected "the closing bracket of an inline function", word
               snippet self
             end },
-            ->{ error :inline_function_expected_body do
+            -> { error :inline_function_expected_body do
               expected "the body of an inline function", word
               snippet self
             end })
diff --git a/src/parsers/locale.cr b/src/parsers/locale.cr
index afec5b9a6..afa86918a 100644
--- a/src/parsers/locale.cr
+++ b/src/parsers/locale.cr
@@ -16,13 +16,13 @@ module Mint
 
         fields =
           brackets(
-            ->{
+            -> {
               error :locale_expected_opening_bracket do
                 expected "the opening bracket of a locale", word
                 snippet self
               end
             },
-            ->{
+            -> {
               error :locale_expected_closing_bracket do
                 expected "the opening bracket of a locale", word
                 snippet self
diff --git a/src/parsers/module.cr b/src/parsers/module.cr
index 8eda25f8c..bad9301b7 100644
--- a/src/parsers/module.cr
+++ b/src/parsers/module.cr
@@ -21,11 +21,11 @@ module Mint
 
         body =
           brackets(
-            ->{ error :module_expected_opening_bracket do
+            -> { error :module_expected_opening_bracket do
               expected "the opening bracket of a module", word
               snippet self
             end },
-            ->{ error :module_expected_closing_bracket do
+            -> { error :module_expected_closing_bracket do
               expected "the closing bracket of a module", word
               snippet self
             end },
diff --git a/src/parsers/operation.cr b/src/parsers/operation.cr
index 98fdd67c9..567de1aae 100644
--- a/src/parsers/operation.cr
+++ b/src/parsers/operation.cr
@@ -8,7 +8,7 @@ module Mint
     def operation(
       left : Ast::Node,
       operator : String,
-      comment : Ast::Comment?
+      comment : Ast::Comment?,
     ) : Ast::Operation?
       parse do
         next error :operation_expected_expression do
diff --git a/src/parsers/provider.cr b/src/parsers/provider.cr
index d2f30681d..3d3de4acb 100644
--- a/src/parsers/provider.cr
+++ b/src/parsers/provider.cr
@@ -27,11 +27,11 @@ module Mint
         whitespace
 
         body = brackets(
-          ->{ error :provider_expected_opening_bracket do
+          -> { error :provider_expected_opening_bracket do
             expected "the opening bracket of a provider", word
             snippet self
           end },
-          ->{ error :provider_expected_closing_bracket do
+          -> { error :provider_expected_closing_bracket do
             expected "the closing bracket of a provider", word
             snippet self
           end },
diff --git a/src/parsers/route.cr b/src/parsers/route.cr
index 3876d140f..54d285969 100644
--- a/src/parsers/route.cr
+++ b/src/parsers/route.cr
@@ -35,15 +35,15 @@ module Mint
 
         body =
           block(
-            ->{ error :route_expected_opening_bracket do
+            -> { error :route_expected_opening_bracket do
               expected "the opening bracket of a route", word
               snippet self
             end },
-            ->{ error :route_expected_closing_bracket do
+            -> { error :route_expected_closing_bracket do
               expected "the closing bracket of a route", word
               snippet self
             end },
-            ->{ error :route_expected_body do
+            -> { error :route_expected_body do
               expected "the body of a route", word
               snippet self
             end })
diff --git a/src/parsers/routes.cr b/src/parsers/routes.cr
index d32ad92bf..c9b9bdddf 100644
--- a/src/parsers/routes.cr
+++ b/src/parsers/routes.cr
@@ -7,11 +7,11 @@ module Mint
 
         body =
           brackets(
-            ->{ error :routes_expected_opening_bracket do
+            -> { error :routes_expected_opening_bracket do
               expected "the opening bracket of a routes block", word
               snippet self
             end },
-            ->{ error :routes_expected_closing_bracket do
+            -> { error :routes_expected_closing_bracket do
               expected "the closing bracket of a routes block", word
               snippet self
             end },
diff --git a/src/parsers/store.cr b/src/parsers/store.cr
index 1ffbb2696..c8b308a06 100644
--- a/src/parsers/store.cr
+++ b/src/parsers/store.cr
@@ -16,11 +16,11 @@ module Mint
 
         body =
           brackets(
-            ->{ error :store_expected_opening_bracket do
+            -> { error :store_expected_opening_bracket do
               expected "the opening bracket of a store", word
               snippet self
             end },
-            ->{ error :store_expected_closing_bracket do
+            -> { error :store_expected_closing_bracket do
               expected "the closing bracket of a store", word
               snippet self
             end },
diff --git a/src/parsers/style.cr b/src/parsers/style.cr
index fad5694dc..b86d15f20 100644
--- a/src/parsers/style.cr
+++ b/src/parsers/style.cr
@@ -27,11 +27,11 @@ module Mint
 
         body =
           brackets(
-            ->{ error :style_expected_opening_bracket do
+            -> { error :style_expected_opening_bracket do
               expected "the opening bracket of a style", word
               snippet self
             end },
-            ->{ error :style_expected_closing_bracket do
+            -> { error :style_expected_closing_bracket do
               expected "the closing bracket of a style", word
               snippet self
             end },
diff --git a/src/parsers/suite.cr b/src/parsers/suite.cr
index 5c70cea11..ae8b491eb 100644
--- a/src/parsers/suite.cr
+++ b/src/parsers/suite.cr
@@ -13,11 +13,11 @@ module Mint
 
         body =
           brackets(
-            ->{ error :suite_expected_opening_bracket do
+            -> { error :suite_expected_opening_bracket do
               expected "the opening bracket of a suite", word
               snippet self
             end },
-            ->{ error :suite_expected_closing_bracket do
+            -> { error :suite_expected_closing_bracket do
               expected "the closing bracket of a suite", word
               snippet self
             end },
diff --git a/src/parsers/test.cr b/src/parsers/test.cr
index 921c02d64..c7a4100aa 100644
--- a/src/parsers/test.cr
+++ b/src/parsers/test.cr
@@ -13,15 +13,15 @@ module Mint
 
         expression =
           block(
-            ->{ error :test_expected_opening_bracket do
+            -> { error :test_expected_opening_bracket do
               expected "the opening bracket of a test", word
               snippet self
             end },
-            ->{ error :test_expected_closing_bracket do
+            -> { error :test_expected_closing_bracket do
               expected "the closing bracket of a test", word
               snippet self
             end },
-            ->{ error :test_expected_body do
+            -> { error :test_expected_body do
               expected "the body of a test", word
               snippet self
             end })
diff --git a/src/parsers/use.cr b/src/parsers/use.cr
index 391092531..58279eae1 100644
--- a/src/parsers/use.cr
+++ b/src/parsers/use.cr
@@ -23,11 +23,11 @@ module Mint
             whitespace
 
             brackets(
-              ->{ error :use_expected_condition_opening_bracket do
+              -> { error :use_expected_condition_opening_bracket do
                 expected "the opening bracket of a use condition", word
                 snippet self
               end },
-              ->{ error :use_expected_condition_closing_bracket do
+              -> { error :use_expected_condition_closing_bracket do
                 expected "the closing bracket of a use condition", word
                 snippet self
               end },
diff --git a/src/static_documentation_generator.cr b/src/static_documentation_generator.cr
index 1a87a2be6..24237d7fa 100644
--- a/src/static_documentation_generator.cr
+++ b/src/static_documentation_generator.cr
@@ -21,10 +21,10 @@ module Mint
         .to_h
         .tap do |files|
           files["/live-reload.js"] =
-            ->{ Assets.read("live-reload.js") } if live_reload
+            -> { Assets.read("live-reload.js") } if live_reload
 
           files["/index.html"] =
-            ->do
+            -> do
               layout "API Documentation", entities, live_reload do
                 article do
                   h1 do
@@ -36,7 +36,7 @@ module Mint
 
           Assets.files.each do |file|
             next unless file.path.starts_with?("/docs/")
-            files[file.path.lchop("/docs")] = ->{ Assets.read(file.path) }
+            files[file.path.lchop("/docs")] = -> { Assets.read(file.path) }
           end
         end
     end
@@ -44,11 +44,11 @@ module Mint
     def generate(
       entity : TopLevelEntity,
       entities : Array(TopLevelEntity),
-      live_reload : Bool
+      live_reload : Bool,
     ) : {String, Proc(String)}
       {
         "/#{href(entity)}",
-        ->do
+        -> do
           layout entity.name, entities, live_reload do |builder|
             article do
               h1 do
@@ -114,14 +114,14 @@ module Mint
 
     def entity_signature(
       entity : Entity,
-      builder : HtmlBuilder
+      builder : HtmlBuilder,
     )
-      head = ->do
+      head = -> do
         builder.span class: "keyword" { text "#{kind(entity.kind)} " }
         builder.a href: "##{entity.name}" { text entity.name }
       end
 
-      type = ->do
+      type = -> do
         if value = entity.type
           builder.span { text " : " }
           builder.raw value
@@ -129,7 +129,7 @@ module Mint
       end
 
       arguments = entity.arguments.try do |items|
-        ->do
+        -> do
           items.each_with_index do |argument, index|
             builder.div class: "argument" do
               span { text argument.name }
diff --git a/src/type_checker.cr b/src/type_checker.cr
index b9a882266..30d363d72 100644
--- a/src/type_checker.cr
+++ b/src/type_checker.cr
@@ -319,7 +319,7 @@ module Mint
       other : Ast::Node,
       node : Ast::Node,
       what : String,
-      name : String
+      name : String,
     )
       error! :global_name_conflict do
         block do
diff --git a/src/type_checker/record.cr b/src/type_checker/record.cr
index fe60c78cc..01bfb6a8b 100644
--- a/src/type_checker/record.cr
+++ b/src/type_checker/record.cr
@@ -10,7 +10,7 @@ module Mint
         @name : String,
         @fields = {} of String => Checkable,
         @mappings = {} of String => String?,
-        @label = nil
+        @label = nil,
       )
       end
 
diff --git a/src/type_checkers/destructuring.cr b/src/type_checkers/destructuring.cr
index 8d13c206a..48c95d2f5 100644
--- a/src/type_checkers/destructuring.cr
+++ b/src/type_checkers/destructuring.cr
@@ -23,7 +23,7 @@ module Mint
     def destructure(
       node : Nil,
       condition : Checkable,
-      variables : Array(VariableScope) = [] of VariableScope
+      variables : Array(VariableScope) = [] of VariableScope,
     )
       variables
     end
@@ -31,7 +31,7 @@ module Mint
     def destructure(
       node : Ast::Discard,
       condition : Checkable,
-      variables : Array(VariableScope) = [] of VariableScope
+      variables : Array(VariableScope) = [] of VariableScope,
     )
       variables
     end
@@ -39,7 +39,7 @@ module Mint
     def destructure(
       node : Ast::Node,
       condition : Checkable,
-      variables : Array(VariableScope) = [] of VariableScope
+      variables : Array(VariableScope) = [] of VariableScope,
     )
       type =
         resolve(node)
@@ -56,7 +56,7 @@ module Mint
     def destructure(
       node : Ast::Variable,
       condition : Checkable,
-      variables : Array(VariableScope) = [] of VariableScope
+      variables : Array(VariableScope) = [] of VariableScope,
     )
       cache[node] = condition
       variables.tap(&.push({node.value, condition, node}))
@@ -65,7 +65,7 @@ module Mint
     def destructure(
       node : Ast::ArrayDestructuring,
       condition : Checkable,
-      variables : Array(VariableScope) = [] of VariableScope
+      variables : Array(VariableScope) = [] of VariableScope,
     )
       destructuring_type_mismatch(
         expected: ARRAY,
@@ -118,7 +118,7 @@ module Mint
     def destructure(
       node : Ast::TupleDestructuring,
       condition : Checkable,
-      variables : Array(VariableScope) = [] of VariableScope
+      variables : Array(VariableScope) = [] of VariableScope,
     )
       destructuring_type_mismatch(
         expected: Type.new("Tuple"),
@@ -148,7 +148,7 @@ module Mint
     def destructure(
       node : Ast::TypeDestructuring,
       condition : Checkable,
-      variables : Array(VariableScope) = [] of VariableScope
+      variables : Array(VariableScope) = [] of VariableScope,
     )
       cache[node] = condition
 
diff --git a/src/type_checkers/here_document.cr b/src/type_checkers/here_document.cr
index be292ebdf..fb96201d1 100644
--- a/src/type_checkers/here_document.cr
+++ b/src/type_checkers/here_document.cr
@@ -5,7 +5,7 @@ module Mint
       *,
       node : Ast::Node,
       type : Checkable,
-      got : Checkable
+      got : Checkable,
     )
       error! :here_doc_interpolation_type_mismatch do
         block "An interpolation in a here document is causing a mismatch."
diff --git a/src/type_checkers/locale.cr b/src/type_checkers/locale.cr
index 45330b9e1..c175d56ac 100644
--- a/src/type_checkers/locale.cr
+++ b/src/type_checkers/locale.cr
@@ -13,7 +13,7 @@ module Mint
       *,
       language : String,
       node : Ast::Field,
-      prefix : String?
+      prefix : String?,
     )
       return unless key = node.key
 
diff --git a/src/type_checkers/operation.cr b/src/type_checkers/operation.cr
index 1f6a06e2b..5509fa3c7 100644
--- a/src/type_checkers/operation.cr
+++ b/src/type_checkers/operation.cr
@@ -3,7 +3,7 @@ module Mint
     def operation_type_mismatch(
       right : TypeChecker::Checkable,
       left : TypeChecker::Checkable,
-      node : Ast::Node
+      node : Ast::Node,
     )
       error! :operation_type_mismatch do
         block do
@@ -19,7 +19,7 @@ module Mint
     def operation_plus_type_mismatch(
       value : TypeChecker::Checkable,
       node : Ast::Node,
-      side : String
+      side : String,
     )
       error! :operation_plus_type_mismatch do
         block do
@@ -40,7 +40,7 @@ module Mint
       value : TypeChecker::Checkable,
       operator : String,
       node : Ast::Node,
-      side : String
+      side : String,
     )
       error! :operation_numeric_type_mismatch do
         block do
@@ -58,7 +58,7 @@ module Mint
       value : TypeChecker::Checkable,
       operator : String,
       node : Ast::Node,
-      side : String
+      side : String,
     )
       error! :operation_bool_type_mismatch do
         block do
diff --git a/src/utils/markd_vdom_renderer.cr b/src/utils/markd_vdom_renderer.cr
index f02ef0ef6..13d6fcea8 100644
--- a/src/utils/markd_vdom_renderer.cr
+++ b/src/utils/markd_vdom_renderer.cr
@@ -21,7 +21,7 @@ module Mint
       replacements : Array(Compiler::Compiled),
       document : Markd::Node,
       separator : String,
-      js : Compiler::Js
+      js : Compiler::Js,
     ) : Compiler::Compiled
       render(
         node: self.new.render(document, separator, highlight),
@@ -35,7 +35,7 @@ module Mint
       highlight : Highlight = Highlight::None,
       replacements : Array(String),
       document : Markd::Node,
-      separator : String
+      separator : String,
     )
       root =
         self.new.render(document, separator, highlight)
@@ -74,7 +74,7 @@ module Mint
       replacements : Array(Compiler::Compiled),
       node : Node | String,
       separator : String,
-      js : Compiler::Js
+      js : Compiler::Js,
     ) : Compiler::Compiled
       case node
       in String
@@ -122,7 +122,7 @@ module Mint
       def initialize(
         @tag : Compiler::Builtin | String, *,
         @attributes = {} of String => String,
-        @children = [] of Node | String
+        @children = [] of Node | String,
       )
       end
     end
@@ -134,7 +134,7 @@ module Mint
     def render(
       document : Markd::Node,
       separator : String,
-      highlight : Highlight
+      highlight : Highlight,
     ) : Node
       walker =
         document.walker
diff --git a/src/workspace.cr b/src/workspace.cr
index b9fb5f04d..2963e3b11 100644
--- a/src/workspace.cr
+++ b/src/workspace.cr
@@ -23,7 +23,7 @@ module Mint
       dot_env : String,
       @format : Bool,
       @check : Check,
-      @path : String
+      @path : String,
     )
       @dot_env =
         File.basename(dot_env)
@@ -73,7 +73,7 @@ module Mint
       *,
       column : Int64,
       path : String,
-      line : Int64
+      line : Int64,
     ) : Array(Ast::Node) | Error
       map_error(ast, &.nodes_at_cursor(
         line: line, column: column, path: path))