Enable Style/MethodDefParentheses rule

.rubocop.yml

@@ -2,6 +2,14 @@ AllCops:
   TargetRubyVersion: 3.0
   DisabledByDefault: true
   SuggestExtensions: false
+  Exclude:
+    # Exclude files that are auto generated
+    - "lib/rdoc/rd/block_parser.rb"
+    - "lib/rdoc/rd/inline_parser.rb"
+    - "lib/rdoc/markdown.rb"
+    - "lib/rdoc/markdown/literals.rb"
+    # Exclude dependency files when installing them under vendor
+    - "vendor/**/*"
 
 Layout/TrailingWhitespace:
   Enabled: true
@@ -20,3 +28,6 @@ Layout/SpaceAfterComma:
 
 Lint/UnreachableCode:
   Enabled: true
+
+Style/MethodDefParentheses:
+  Enabled: true

lib/rdoc/code_object.rb

@@ -236,7 +236,7 @@ def force_documentation=(value)
   #
   # Set to +nil+ to clear RDoc's cached value
 
-  def full_name= full_name
+  def full_name=(full_name)
     @full_name = full_name
   end
 
@@ -316,7 +316,7 @@ def parent_name
   ##
   # Records the RDoc::TopLevel (file) where this code object was defined
 
-  def record_location top_level
+  def record_location(top_level)
     @ignored    = false
     @suppressed = false
     @file       = top_level
@@ -358,7 +358,7 @@ def stop_doc
   ##
   # Sets the +store+ that contains this CodeObject
 
-  def store= store
+  def store=(store)
     @store = store
 
     return unless @track_visibility

lib/rdoc/code_object/any_method.rb

@@ -52,7 +52,7 @@ def initialize(text, name, singleton: false)
   ##
   # Adds +an_alias+ as an alias for this method in +context+.
 
-  def add_alias an_alias, context = nil
+  def add_alias(an_alias, context = nil)
     method = self.class.new an_alias.text, an_alias.new_name, singleton: singleton
 
     method.record_location an_alias.file
@@ -104,7 +104,7 @@ def call_seq
   #
   # See also #param_seq
 
-  def call_seq= call_seq
+  def call_seq=(call_seq)
     return if call_seq.nil? || call_seq.empty?
 
     @call_seq = call_seq
@@ -176,7 +176,7 @@ def marshal_dump
   # * #full_name
   # * #parent_name
 
-  def marshal_load array
+  def marshal_load(array)
     initialize_visibility
 
     @dont_rename_initialize = nil
@@ -309,7 +309,7 @@ def skip_description?
   ##
   # Sets the store for this method and its referenced code objects.
 
-  def store= store
+  def store=(store)
     super
 
     @file = @store.add_file @file.full_name if @file

lib/rdoc/code_object/attr.rb

@@ -32,7 +32,7 @@ def initialize(text, name, rw, comment, singleton: false)
   ##
   # Attributes are equal when their names, singleton and rw are identical
 
-  def == other
+  def ==(other)
     self.class == other.class and
       self.name == other.name and
       self.rw == other.rw and
@@ -118,7 +118,7 @@ def marshal_dump
   # * #full_name
   # * #parent_name
 
-  def marshal_load array
+  def marshal_load(array)
     initialize_visibility
 
     @aliases      = []
@@ -145,7 +145,7 @@ def marshal_load array
     @parent_name ||= @full_name.split('#', 2).first
   end
 
-  def pretty_print q # :nodoc:
+  def pretty_print(q) # :nodoc:
     q.group 2, "[#{self.class.name} #{full_name} #{rw} #{visibility}", "]" do
       unless comment.empty? then
         q.breakable

lib/rdoc/code_object/class_module.rb

@@ -45,7 +45,7 @@ class RDoc::ClassModule < RDoc::Context
   #--
   # TODO move to RDoc::NormalClass (I think)
 
-  def self.from_module class_type, mod
+  def self.from_module(class_type, mod)
     klass = class_type.new mod.name
 
     mod.comment_location.each do |comment, location|
@@ -120,7 +120,7 @@ def initialize(name, superclass = nil)
   # method is preferred over #comment= since it allows ri data to be updated
   # across multiple runs.
 
-  def add_comment comment, location
+  def add_comment(comment, location)
     return unless document_self
 
     original = comment
@@ -141,7 +141,7 @@ def add_comment comment, location
     self.comment = original
   end
 
-  def add_things my_things, other_things # :nodoc:
+  def add_things(my_things, other_things) # :nodoc:
     other_things.each do |group, things|
       my_things[group].each { |thing| yield false, thing } if
         my_things.include? group
@@ -198,7 +198,7 @@ def clear_comment
   # Appends +comment+ to the current comment, but separated by a rule.  Works
   # more like <tt>+=</tt>.
 
-  def comment= comment # :nodoc:
+  def comment=(comment) # :nodoc:
     comment = case comment
               when RDoc::Comment then
                 comment.normalize
@@ -216,7 +216,7 @@ def comment= comment # :nodoc:
   #
   # See RDoc::Store#complete
 
-  def complete min_visibility
+  def complete(min_visibility)
     update_aliases
     remove_nodoc_children
     embed_mixins
@@ -259,7 +259,7 @@ def each_ancestor # :yields: module
   ##
   # Looks for a symbol in the #ancestors. See Context#find_local_symbol.
 
-  def find_ancestor_local_symbol symbol
+  def find_ancestor_local_symbol(symbol)
     each_ancestor do |m|
       res = m.find_local_symbol(symbol)
       return res if res
@@ -271,7 +271,7 @@ def find_ancestor_local_symbol symbol
   ##
   # Finds a class or module with +name+ in this namespace or its descendants
 
-  def find_class_named name
+  def find_class_named(name)
     return self if full_name == name
     return self if @name == name
 
@@ -360,7 +360,7 @@ def marshal_dump # :nodoc:
     ]
   end
 
-  def marshal_load array # :nodoc:
+  def marshal_load(array) # :nodoc:
     initialize_visibility
     initialize_methods_etc
     @current_section   = nil
@@ -450,7 +450,7 @@ def marshal_load array # :nodoc:
   #
   # The data in +class_module+ is preferred over the receiver.
 
-  def merge class_module
+  def merge(class_module)
     @parent      = class_module.parent
     @parent_name = class_module.parent_name
 
@@ -535,7 +535,7 @@ def merge class_module
   #     end
   #   end
 
-  def merge_collections mine, other, other_files, &block # :nodoc:
+  def merge_collections(mine, other, other_files, &block) # :nodoc:
     my_things    = mine. group_by { |thing| thing.file }
     other_things = other.group_by { |thing| thing.file }
 
@@ -547,7 +547,7 @@ def merge_collections mine, other, other_files, &block # :nodoc:
   # Merges the comments in this ClassModule with the comments in the other
   # ClassModule +cm+.
 
-  def merge_sections cm # :nodoc:
+  def merge_sections(cm) # :nodoc:
     my_sections    =    sections.group_by { |section| section.title }
     other_sections = cm.sections.group_by { |section| section.title }
 
@@ -595,15 +595,15 @@ def module?
   #
   # Used for modules and classes that are constant aliases.
 
-  def name= new_name
+  def name=(new_name)
     @name = new_name
   end
 
   ##
   # Parses +comment_location+ into an RDoc::Markup::Document composed of
   # multiple RDoc::Markup::Documents with their file set.
 
-  def parse comment_location
+  def parse(comment_location)
     case comment_location
     when String then
       super
@@ -675,7 +675,7 @@ def remove_nodoc_children
     end
   end
 
-  def remove_things my_things, other_files # :nodoc:
+  def remove_things(my_things, other_files) # :nodoc:
     my_things.delete_if do |file, things|
       next false unless other_files.include? file
 
@@ -705,7 +705,7 @@ def search_record
   ##
   # Sets the store for this class or module and its contained code objects.
 
-  def store= store
+  def store=(store)
     super
 
     @attributes .each do |attr|  attr.store  = store end

lib/rdoc/code_object/constant.rb

@@ -44,7 +44,7 @@ def initialize(name, value, comment)
   ##
   # Constants are ordered by name
 
-  def <=> other
+  def <=>(other)
     return unless self.class === other
 
     [parent_name, name] <=> [other.parent_name, other.name]
@@ -53,7 +53,7 @@ def <=> other
   ##
   # Constants are equal when their #parent and #name is the same
 
-  def == other
+  def ==(other)
     self.class == other.class and
       @parent == other.parent and
       @name == other.name
@@ -132,7 +132,7 @@ def marshal_dump
   # * #full_name
   # * #parent_name
 
-  def marshal_load array
+  def marshal_load(array)
     initialize array[1], nil, RDoc::Comment.from_document(array[5])
 
     @full_name     = array[2]
@@ -154,7 +154,7 @@ def path
     "#{@parent.path}##{@name}"
   end
 
-  def pretty_print q # :nodoc:
+  def pretty_print(q) # :nodoc:
     q.group 2, "[#{self.class.name} #{full_name}", "]" do
       unless comment.empty? then
         q.breakable
@@ -168,7 +168,7 @@ def pretty_print q # :nodoc:
   ##
   # Sets the store for this class or module and its contained code objects.
 
-  def store= store
+  def store=(store)
     super
 
     @file = @store.add_file @file.full_name if @file