Class: RuboCop::Cop::Layout::FirstMethodArgumentLineBreak

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Includes:
AllowedMethods, FirstElementLineBreak
Defined in:
lib/rubocop/cop/layout/first_method_argument_line_break.rb

Overview

Checks for a line break before the first argument in a multi-line method call.

Examples:


# bad
method(foo, bar,
  baz)

# good
method(
  foo, bar,
  baz)

  # ignored
  method foo, bar,
    baz

AllowMultilineFinalElement: false (default)


# bad
method(foo, bar, {
  baz: "a",
  qux: "b",
})

# good
method(
  foo, bar, {
  baz: "a",
  qux: "b",
})

AllowMultilineFinalElement: true


# bad
method(foo,
  bar,
  {
    baz: "a",
    qux: "b",
  }
)

# good
method(foo, bar, {
  baz: "a",
  qux: "b",
})

# good
method(
  foo,
  bar,
  {
    baz: "a",
    qux: "b",
  }
)

AllowedMethods: [‘some_method’]


# good
some_method(foo, bar,
  baz)

Constant Summary collapse

MSG = 
'Add a line break before the first argument of a multi-line method argument list.'

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 AutoCorrector

support_autocorrect?

Methods inherited from Base

#active_support_extensions_enabled?, #add_global_offense, #add_offense, #always_autocorrect?, autocorrect_incompatible_with, badge, #begin_investigation, #callbacks_needed, callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #contextual_autocorrect?, #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, #parser_engine, #ready, #relevant_file?, requires_gem, #string_literals_frozen_by_default?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version

Methods included from ExcludeLimit

#exclude_limit

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_send(node) ⇒ Object Also known as: on_csend, on_super 



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# File 'lib/rubocop/cop/layout/first_method_argument_line_break.rb', line 78

def on_send(node)
  return if allowed_method?(node.method_name)

  args = node.arguments.dup

  # If there is a trailing hash arg without explicit braces, like this:
  #
  #    method(1, 'key1' => value1, 'key2' => value2)
  #
  # ...then each key/value pair is treated as a method 'argument'
  # when determining where line breaks should appear.
  last_arg = args.last
  args.concat(args.pop.children) if last_arg&.hash_type? && !last_arg&.braces?

  check_method_line_break(node, args, ignore_last: ignore_last_element?)
end