Module: RuboCop::Cop::Utils::Parser

Defined in:
lib/rubocop/cop/betterment/utils/parser.rb

Class Method Summary collapse

Class Method Details

.explicit_returns(node) ⇒ Object 



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# File 'lib/rubocop/cop/betterment/utils/parser.rb', line 61

def self.explicit_returns(node)
  node.descendants.select(&:return_type?).map { |x|
    x&.children&.first
  }.compact
end

.get_return_values(node) ⇒ Object

rubocop:disable Metrics/AbcSize



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# File 'lib/rubocop/cop/betterment/utils/parser.rb', line 33

def self.get_return_values(node) # rubocop:disable Metrics/AbcSize
  return [] unless node
  return explicit_returns(node) + get_return_values(node.body) if node.def_type?
  return [node] if node.literal? || node.variable?

  case node.type
    when :begin
      get_return_values(node.children.last)
    when :block
      get_return_values(node.body)
    when :if
      if_rets = get_return_values(node.if_branch)
      else_rets = get_return_values(node.else_branch)
      if_rets + else_rets
    when :case
      cases = []
      node.each_when do |block|
        cases += get_return_values(block.body)
      end

      cases + get_return_values(node.else_branch)
    when :send
      [node]
    else
      []
  end
end

.get_root_token(node) ⇒ Object

rubocop:disable Metrics/PerceivedComplexity, Metrics/AbcSize, Metrics/CyclomaticComplexity



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# File 'lib/rubocop/cop/betterment/utils/parser.rb', line 5

def self.get_root_token(node) # rubocop:disable Metrics/PerceivedComplexity, Metrics/AbcSize, Metrics/CyclomaticComplexity
  return nil unless node

  return get_root_token(node.receiver) if node.receiver

  if node.send_type?
    name = node.method_name
  elsif node.variable?
    name, = *node
  elsif node.literal?
    _, name = *node
  elsif node.const_type?
    name = node.const_name.to_sym
  elsif node.sym_type?
    name = node.value
  elsif node.variable?
    name = node.children[0]
  elsif node.self_type?
    name = :self
  elsif node.block_pass_type?
    name, = *node.children
  else
    name = nil
  end

  name
end