Class: ERBLint::Linters::DisallowActionList

Inherits:
Linter
  • Object
show all
Includes:
ERBLint::LinterRegistry, TagTreeHelpers
Defined in:
lib/primer/view_components/linters/disallow_action_list.rb

Overview

Finds usages of ActionList CSS classes.

Defined Under Namespace

Classes: ConfigSchema

Constant Summary

Constants included from TagTreeHelpers

TagTreeHelpers::SELF_CLOSING_TAGS

Instance Method Summary collapse

Methods included from TagTreeHelpers

#build_tag_tree, #self_closing?

Instance Method Details

#run(processed_source) ⇒ Object 



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# File 'lib/primer/view_components/linters/disallow_action_list.rb', line 19

def run(processed_source)
  return if ignored?(processed_source.filename)

  class_regex = /ActionList[\w-]*/
  tags, * = build_tag_tree(processed_source)

  tags.each do |tag|
    next if tag.closing?

    classes =
      if (class_attrib = tag.attributes["class"])
        loc = class_attrib.value_node.loc
        loc.source_buffer.source[loc.begin_pos...loc.end_pos]
      else
        ""
      end

    indices = [].tap do |results|
      classes.scan(class_regex) do
        results << Regexp.last_match.offset(0)
      end
    end

    next if indices.empty?

    indices.each do |(start_idx, end_idx)|
      new_loc = class_attrib.value_node.loc.with(
        begin_pos: class_attrib.value_node.loc.begin_pos + start_idx,
        end_pos: class_attrib.value_node.loc.begin_pos + end_idx
      )

      add_offense(
        new_loc,
        "ActionList classes are only designed to be used by Primer View Components and " \
          "should be considered private. Please reach out in the #primer-rails Slack channel."
      )
    end
  end
end