class SyntaxTree::Parser

def on_sclass(target, bodystmt)

on_sclass: (untyped target, BodyStmt bodystmt) -> SClass
:call-seq: 
def on_sclass(target, bodystmt)
  beginning = consume_keyword(:class)
  ending = consume_keyword(:end)
  start_char = find_next_statement_start(target.location.end_char)
  bodystmt.bind(
    self,
    start_char,
    start_char - line_counts[target.location.start_line - 1].start,
    ending.location.start_char,
    ending.location.start_column
  )
  SClass.new(
    target: target,
    bodystmt: bodystmt,
    location: beginning.location.to(ending.location)
  )
end