module SCSSLint::SelectorVisitor

Provides functionality for conveniently visiting a Selector sequence.

Public Instance Methods

visit_selector(node) click to toggle source
# File lib/scss_lint/selector_visitor.rb, line 4
def visit_selector(node)
  visit_selector_node(node)
end

Private Instance Methods

selector_node_name(node) click to toggle source
# File lib/scss_lint/selector_visitor.rb, line 25
def selector_node_name(node)
  # Converts the class name of a node into snake_case form, e.g.
  # `Sass::Selector::SimpleSequence` -> `simple_sequence`
  node.class.name.gsub(/.*::(.*?)$/, '\\1')
                  .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
                  .gsub(/([a-z\d])([A-Z])/, '\1_\2')
                  .downcase
end
visit_members(sequence) click to toggle source
# File lib/scss_lint/selector_visitor.rb, line 17
def visit_members(sequence)
  sequence.members
          .reject { |member| member.is_a?(String) } # Skip newlines in multi-line comma seqs
          .each do |member|
    visit_selector(member)
  end
end
visit_selector_node(node) click to toggle source
# File lib/scss_lint/selector_visitor.rb, line 10
def visit_selector_node(node)
  method = "visit_#{selector_node_name(node)}"
  send(method, node) if respond_to?(method, true)

  visit_members(node) if node.is_a?(Sass::Selector::AbstractSequence)
end