ErrorHighlight::Spotter#spot_attrasgn_for_name

# File tmp/rubies/ruby-4.1.0-preview1/lib/error_highlight/base.rb, line 441
def spot_attrasgn_for_name
  nd_recv, mid, nd_args = @node.children
  *nd_args, _nd_last_arg, _nil = nd_args.children
  fetch_line(nd_recv.last_lineno)
  if mid == :[]= && @snippet.match(/\G[\s)]*(\[)/, nd_recv.last_column)
    @beg_column = $~.begin(1)
    args_last_column = $~.end(0)
    if nd_args.last && nd_recv.last_lineno == nd_args.last.last_lineno
      args_last_column = nd_args.last.last_column
    end
    if @snippet.match(/[\s)]*\]\s*=/, args_last_column)
      @end_column = $~.end(0)
    end
  elsif @snippet.match(/\G[\s)]*(\.\s*#{ Regexp.quote(mid.to_s.sub(/=\z/, "")) }\s*=)/, nd_recv.last_column)
    @beg_column = $~.begin(1)
    @end_column = $~.end(1)
  end
end