class SCSSLint::Linter::PlaceholderInExtend

Checks that `@extend` is always used with a placeholder selector.

Public Instance Methods

visit_extend(node) click to toggle source
# File lib/scss_lint/linter/placeholder_in_extend.rb, line 6
def visit_extend(node)
  # Ignore if it cannot be statically determined that this selector is a
  # placeholder since its prefix is dynamically generated
  return if node.selector.first.is_a?(Sass::Script::Tree::Node)

  # The array returned by the parser is a bit awkward in that it splits on
  # every word boundary (so %placeholder becomes ['%', 'placeholder']).
  selector = node.selector.join

  # Ignore if this is a placeholder
  return if selector.start_with?('%')

  add_lint(node, 'Prefer using placeholder selectors (e.g. '                       '%some-placeholder) with @extend')
end