Module: RuboCop::Cop::Style::MethodCallWithArgsParentheses::OmitParentheses

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 184

def allowed_chained_call_with_parentheses?(node)
  return false unless cop_config['AllowParenthesesInChaining']

  previous = node.descendants.first
  return false unless previous&.send_type?

  previous.parenthesized? || allowed_chained_call_with_parentheses?(previous)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 180

def allowed_multiline_call_with_parentheses?(node)
  cop_config['AllowParenthesesInMultilineCall'] && node.multiline?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 85

def allowed_string_interpolation_method_call?(node)
  cop_config['AllowParenthesesInStringInterpolation'] &&
    inside_string_interpolation?(node)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 193

def ambiguous_literal?(node)
  splat?(node) || ternary_if?(node) || regexp_slash_literal?(node) || unary_literal?(node)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 222

def assigned_before?(node, target)
  node.assignment? && node.loc.operator.begin < target.loc.begin
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 230

def assignment_in_condition?(node)
  parent = node.parent
  return false unless parent

  grandparent = parent.parent
  return false unless grandparent

  parent.assignment? && (grandparent.conditional? || grandparent.when_type?)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 34

def autocorrect(corrector, node)
  range = args_begin(node)
  if parentheses_at_the_end_of_multiline_call?(node)
    # Whitespace after line continuation (`\ `) is a syntax error
    with_whitespace = range_with_surrounding_space(range, side: :right, newlines: false)
    corrector.replace(with_whitespace, ' \\')
  else
    corrector.replace(range, ' ')
  end
  corrector.remove(node.loc.end)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 161

def call_as_argument_or_chain?(node)
  node.parent &&
    (node.parent.call_type? || node.parent.super_type? || node.parent.yield_type?) &&
    !assigned_before?(node.parent, node)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 154

def call_in_argument_with_block?(node)
  parent = node.parent&.block_type? && node.parent.parent
  return false unless parent

  parent.call_type? || parent.super_type? || parent.yield_type?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 110

def call_in_literals?(node)
  parent = node.parent&.block_type? ? node.parent.parent : node.parent
  return false unless parent

  parent.pair_type? ||
    parent.array_type? ||
    parent.range_type? ||
    splat?(parent) ||
    ternary_if?(parent)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 121

def call_in_logical_operators?(node)
  parent = node.parent&.block_type? ? node.parent.parent : node.parent
  return false unless parent

  logical_operator?(parent) ||
    (parent.send_type? &&
    parent.arguments.any? { |argument| logical_operator?(argument) })
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 167

def call_in_match_pattern?(node)
  return false unless (parent = node.parent)

  parent.match_pattern_type? || parent.match_pattern_p_type?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 130

def call_in_optional_arguments?(node)
  node.parent && (node.parent.optarg_type? || node.parent.kwoptarg_type?)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 134

def call_in_single_line_inheritance?(node)
  node.parent&.class_type? && node.parent.single_line?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 138

def call_with_ambiguous_arguments?(node) # rubocop:disable Metrics/PerceivedComplexity
  call_with_braced_block?(node) ||
    call_in_argument_with_block?(node) ||
    call_as_argument_or_chain?(node) ||
    call_in_match_pattern?(node) ||
    hash_literal_in_arguments?(node) ||
    node.descendants.any? do |n|
      n.forwarded_args_type? || n.block_type? || n.numblock_type? ||
        ambiguous_literal?(n) || logical_operator?(n)
    end
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 150

def call_with_braced_block?(node)
  (node.call_type? || node.super_type?) && node.block_node&.braces?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 240

def forwards_anonymous_rest_arguments?(node)
  return false unless (last_argument = node.last_argument)
  return true if last_argument.forwarded_restarg_type?

  last_argument.hash_type? && last_argument.children.first&.forwarded_kwrestarg_type?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 209

def hash_literal?(node)
  node.hash_type? && node.braces?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 173

def hash_literal_in_arguments?(node)
  node.arguments.any? do |n|
    hash_literal?(n) ||
      (n.send_type? && node.descendants.any? { |descendant| hash_literal?(descendant) })
  end
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 50

def inside_endless_method_def?(node)
  # parens are required around arguments inside an endless method
  node.each_ancestor(:def, :defs).any?(&:endless?) && node.arguments.any?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 226

def inside_string_interpolation?(node)
  node.ancestors.drop_while { |a| !a.begin_type? }.any?(&:dstr_type?)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 64

def last_expression?(node)
  !(node.parent&.assignment? ? node.parent.right_sibling : node.right_sibling)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 97

def legitimate_call_with_parentheses?(node) # rubocop:disable Metrics/PerceivedComplexity
  call_in_literals?(node) ||
    node.parent&.when_type? ||
    call_with_ambiguous_arguments?(node) ||
    call_in_logical_operators?(node) ||
    call_in_optional_arguments?(node) ||
    call_in_single_line_inheritance?(node) ||
    allowed_multiline_call_with_parentheses?(node) ||
    allowed_chained_call_with_parentheses?(node) ||
    assignment_in_condition?(node) ||
    forwards_anonymous_rest_arguments?(node)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 205

def logical_operator?(node)
  node.operator_keyword? && node.logical_operator?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 72

def method_call_before_constant_resolution?(node)
  node.parent&.const_type?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 46

def offense_range(node)
  node.loc.begin.join(node.loc.end)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 18

def omit_parentheses(node) # rubocop:disable Metrics/PerceivedComplexity
  return unless node.parenthesized?
  return if inside_endless_method_def?(node)
  return if require_parentheses_for_hash_value_omission?(node)
  return if syntax_like_method_call?(node)
  return if method_call_before_constant_resolution?(node)
  return if super_call_without_arguments?(node)
  return if legitimate_call_with_parentheses?(node)
  return if allowed_camel_case_method_call?(node)
  return if allowed_string_interpolation_method_call?(node)

  add_offense(offense_range(node), message: OMIT_MSG) do |corrector|
    autocorrect(corrector, node)
  end
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 90

def parentheses_at_the_end_of_multiline_call?(node)
  node.multiline? &&
    node.loc.begin.source_line
        .gsub(TRAILING_WHITESPACE_REGEX, '')
        .end_with?('(')
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 213

def regexp_slash_literal?(node)
  node.regexp_type? && node.loc.begin.source == '/'
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 55

def require_parentheses_for_hash_value_omission?(node) # rubocop:disable Metrics/PerceivedComplexity
  return false unless (last_argument = node.last_argument)
  return false if !last_argument.hash_type? || !last_argument.pairs.last&.value_omission?

  node.parent&.conditional? || node.parent&.single_line? || !last_expression?(node)
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 197

def splat?(node)
  node.splat_type? || node.kwsplat_type? || node.block_pass_type?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 76

def super_call_without_arguments?(node)
  node.super_type? && node.arguments.none?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 68

def syntax_like_method_call?(node)
  node.implicit_call? || node.operator_method?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 201

def ternary_if?(node)
  node.if_type? && node.ternary?
end

# File 'lib/rubocop/cop/style/method_call_with_args_parentheses/omit_parentheses.rb', line 217

def unary_literal?(node)
  (node.numeric_type? && node.sign?) ||
    (node.parent&.send_type? && node.parent.unary_operation?)
end