class SyntaxTree::Parser

def on_rescue(exceptions, variable, statements, consequent)
  keyword = consume_keyword(:rescue)
  exceptions = exceptions[0] if exceptions.is_a?(Array)
  last_node = variable || exceptions || keyword
  start_char = find_next_statement_start(last_node.end_char)
  statements.bind(
    self,
    start_char,
    start_char - line_counts[last_node.location.start_line - 1].start,
    char_pos,
    current_column
  )
  # We add an additional inner node here that ripper doesn't provide so that
  # we have a nice place to attach inline comments. But we only need it if
  # we have an exception or a variable that we're rescuing.
  rescue_ex =
    if exceptions || variable
      RescueEx.new(
        exceptions: exceptions,
        variable: variable,
        location:
          Location.new(
            start_line: keyword.location.start_line,
            start_char: keyword.location.end_char + 1,
            start_column: keyword.location.end_column + 1,
            end_line: last_node.location.end_line,
            end_char: last_node.end_char,
            end_column: last_node.location.end_column
          )
      )
    end
  Rescue.new(
    keyword: keyword,
    exception: rescue_ex,
    statements: statements,
    consequent: consequent,
    location:
      Location.new(
        start_line: keyword.location.start_line,
        start_char: keyword.location.start_char,
        start_column: keyword.location.start_column,
        end_line: lineno,
        end_char: char_pos,
        end_column: current_column
      )
  )
end