Class: RuboCop::Cop::Metrics::MethodLength

Inherits:
Base
  • Object
show all
Includes:
AllowedMethods, AllowedPattern, CodeLength
Defined in:
lib/rubocop/cop/metrics/method_length.rb

Overview

Checks if the length of a method exceeds some maximum value. Comment lines can optionally be allowed. The maximum allowed length is configurable.

You can set constructs you want to fold with CountAsOne. Available are: 'array', 'hash', 'heredoc', and 'method_call'. Each construct will be counted as one line regardless of its actual size.

Note
 The ExcludedMethods and IgnoredMethods configuration is deprecated and only kept for backwards compatibility. Please use AllowedMethods and AllowedPatterns instead. By default, there are no methods to allowed.

Examples:

CountAsOne: ['array', 'heredoc', 'method_call']


def m
  array = [       # +1
    1,
    2
  ]

  hash = {        # +3
    key: 'value'
  }

  <<~HEREDOC      # +1
    Heredoc
    content.
  HEREDOC

  foo(            # +1
    1,
    2
  )
end               # 6 points

Constant Summary collapse

LABEL = 
'Method'

Constants included from CodeLength

CodeLength::MSG

Constants inherited from Base

Base::RESTRICT_ON_SEND

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source

Instance Method Summary collapse

Methods included from ExcludeLimit

#exclude_limit

Methods inherited from Base

#active_support_extensions_enabled?, #add_global_offense, #add_offense, autocorrect_incompatible_with, badge, #begin_investigation, callbacks_needed, #callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, #inspect, joining_forces, lint?, match?, #message, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #parse, #ready, #relevant_file?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #autocorrect_with_disable_uncorrectable?, #correctable?, #disable_uncorrectable?, #safe_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

silence_warnings

Constructor Details

This class inherits a constructor from RuboCop::Cop::Base

Instance Method Details

#on_block(node) ⇒ Object Also known as: on_numblock 



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# File 'lib/rubocop/cop/metrics/method_length.rb', line 56

def on_block(node)
  return unless node.method?(:define_method)

  check_code_length(node)
end

#on_def(node) ⇒ Object Also known as: on_defs 



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# File 'lib/rubocop/cop/metrics/method_length.rb', line 49

def on_def(node)
  return if allowed_method?(node.method_name) || matches_allowed_pattern?(node.method_name)

  check_code_length(node)
end