class RuboCop::Cop::Corrector

def initialize(source_buffer, corrections = [])
  @source_buffer = source_buffer
  raise 'source_buffer should be a Parser::Source::Buffer' unless \
    source_buffer.is_a? Parser::Source::Buffer
  @corrections = corrections
  @source_rewriter = Parser::Source::TreeRewriter.new(
    source_buffer,
    different_replacements: :raise,
    swallowed_insertions: :raise,
    crossing_deletions: :accept
  )
  @diagnostics = []
  # Don't print warnings to stderr if corrections conflict with each other
  @source_rewriter.diagnostics.consumer = lambda do |diagnostic|
    @diagnostics << diagnostic
  end
end