Class: RuboCop::Cop::Layout::ParameterAlignment

Inherits:
Cop
  • Object
show all
Includes:
Alignment
Defined in:
lib/rubocop/cop/layout/parameter_alignment.rb

Overview

Here we check if the parameters on a multi-line method call or definition are aligned.

To set the alignment of the first argument, use the cop FirstParameterIndentation.

Examples:

EnforcedStyle: with_first_parameter (default)

# good

def foo(bar,
        baz)
  123
end

def foo(
  bar,
  baz
)
  123
end

# bad

def foo(bar,
     baz)
  123
end

# bad

def foo(
  bar,
     baz)
  123
end

EnforcedStyle: with_fixed_indentation

# good

def foo(bar,
  baz)
  123
end

def foo(
  bar,
  baz
)
  123
end

# bad

def foo(bar,
        baz)
  123
end

# bad

def foo(
  bar,
     baz)
  123
end

Constant Summary collapse

ALIGN_PARAMS_MSG =
'Align the parameters of a method definition if ' \
'they span more than one line.'
FIXED_INDENT_MSG =
'Use one level of indentation for parameters ' \
'following the first line of a multi-line method definition.'

Constants inherited from Base

Base::RESTRICT_ON_SEND

Instance Attribute Summary

Attributes inherited from Cop

#offenses

Attributes inherited from Base

#config, #processed_source

Instance Method Summary collapse

Methods inherited from Cop

#add_offense, all, #corrections, #find_location, #highlights, joining_forces, #messages, #on_investigation_end, #on_new_investigation, #parse, qualified_cop_name, registry, support_autocorrect?, #support_autocorrect?

Methods inherited from Base

#add_global_offense, #add_offense, autocorrect_incompatible_with, badge, #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, joining_forces, lint?, match?, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #ready, #relevant_file?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #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

#autocorrect(node) ⇒ Object


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# File 'lib/rubocop/cop/layout/parameter_alignment.rb', line 87

def autocorrect(node)
  AlignmentCorrector.correct(processed_source, node, column_delta)
end

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


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# File 'lib/rubocop/cop/layout/parameter_alignment.rb', line 80

def on_def(node)
  return if node.arguments.size < 2

  check_alignment(node.arguments, base_column(node, node.arguments))
end