Class: RuboCop::Cop::RBS::Style::DuplicatedType

Inherits:
RBS::CopBase
  • Object
show all
Extended by:
AutoCorrector
Defined in:
lib/rubocop/cop/rbs/style/duplicated_type.rb

Overview

Examples:

default

# bad
def foo: (Integer | Integer) -> void

# bad
def foo: (Integer & Integer) -> void

# good
def foo: (Integer) -> void

Instance Attribute Summary

Attributes inherited from RBS::CopBase

#processed_rbs_source

Instance Method Summary collapse

Methods inherited from RBS::CopBase

#investigation_rbs, #location_to_range, #on_new_investigation, #on_other_file, #on_rbs_attribute, #on_rbs_class, #on_rbs_constant, #on_rbs_global, #on_rbs_interface, #on_rbs_module, #on_rbs_new_investigation, #on_rbs_parsing_error, #on_rbs_private, #on_rbs_public, #on_rbs_type_alias, #on_rbs_var, #parse_rbs, #rbs_buffer, #tokenize, #walk

Methods included from RBS::OnTypeHelper

#on_not_type, #on_type

Instance Method Details

#check_type(type) ⇒ Object 



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# File 'lib/rubocop/cop/rbs/style/duplicated_type.rb', line 29

def check_type(type)
  case type
  when ::RBS::Types::Record,
       ::RBS::Types::Tuple,
       ::RBS::Types::Optional,
       ::RBS::Types::ClassInstance,
       ::RBS::Types::Proc
    type.each_type do |t|
      check_type(t)
    end
  when ::RBS::Types::Union,
       ::RBS::Types::Intersection
    set = Set.new
    type.types.each do |t|
      if set.include?(t)
        if t.location
          range = location_to_range(t.location)
          add_offense(range, message: "Duplicated type `#{t}`.")
        end
      else
        set.add(t)
      end
    end
    type.each_type do |t|
      check_type(t)
    end
  end
end

#on_rbs_def(decl) ⇒ Object 



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# File 'lib/rubocop/cop/rbs/style/duplicated_type.rb', line 20

def on_rbs_def(decl)
  decl.overloads.each do |overload|
    overload.method_type.each_type do |type|
      check_type(type)
    end
  end
end