Class: RuboCop::Cop::Layout::IndentFirstParameter

Inherits:
Cop
  • Object
show all
Includes:
Alignment, ConfigurableEnforcedStyle, MultilineElementIndentation
Defined in:
lib/rubocop/cop/layout/indent_first_parameter.rb

Overview

This cop checks the indentation of the first parameter in a method definition. Parameters after the first one are checked by Layout/AlignParameters, not by this cop.

For indenting the first argument of method calls, check out Layout/IndentFirstArgument, which supports options related to nesting that are irrelevant for method definitions.

Examples:


# bad
def some_method(
first_param,
second_param)
  123
end

EnforcedStyle: consistent (default)

# The first parameter should always be indented one step more than the
# preceding line.

# good
def some_method(
  first_param,
second_param)
  123
end

EnforcedStyle: align_parentheses

# The first parameter should always be indented one step more than the
# opening parenthesis.

# good
def some_method(
                 first_param,
second_param)
  123
end

Constant Summary collapse

MSG =
'Use %<configured_indentation_width>d spaces for indentation ' \
'in method args, relative to %<base_description>s.'

Constants included from Util

Util::LITERAL_REGEX

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary collapse

Methods included from ConfigurableEnforcedStyle

#alternative_style, #alternative_styles, #ambiguous_style_detected, #correct_style_detected, #detected_style, #detected_style=, #no_acceptable_style!, #no_acceptable_style?, #opposite_style_detected, #style, #style_detected, #style_parameter_name, #supported_styles, #unexpected_style_detected

Methods inherited from Cop

#add_offense, all, autocorrect_incompatible_with, badge, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, #correct, department, #disable_uncorrectable, #duplicate_location?, #excluded_file?, #find_location, #highlights, inherited, #initialize, #join_force?, lint?, match?, #messages, #parse, qualified_cop_name, #reason_to_not_correct, #relevant_file?, #target_rails_version, #target_ruby_version

Methods included from NodePattern::Macros

#def_node_matcher, #def_node_search, #node_search, #node_search_all, #node_search_body, #node_search_first

Methods included from AST::Sexp

#s

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #correctable?, #disable_offense, #disable_uncorrectable?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

begins_its_line?, comment_line?, double_quotes_required?, escape_string, first_part_of_call_chain, interpret_string_escapes, line_range, needs_escaping?, on_node, parentheses?, same_line?, to_string_literal, to_supported_styles, tokens, trim_string_interporation_escape_character

Methods included from PathUtil

absolute?, chdir, hidden_dir?, hidden_file_in_not_hidden_dir?, match_path?, pwd, relative_path, reset_pwd, smart_path

Constructor Details

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

Instance Method Details

#autocorrect(node) ⇒ Object


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# File 'lib/rubocop/cop/layout/indent_first_parameter.rb', line 60

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/indent_first_parameter.rb', line 52

def on_def(node)
  return if node.arguments.empty?
  return if node.arguments.loc.begin.nil?

  check(node)
end