class SyntaxTree::Parser

def on_dyna_symbol(string_content)

on_dyna_symbol: (StringContent string_content) -> DynaSymbol
:call-seq: 
def on_dyna_symbol(string_content)
  if (symbeg = find_token(SymBeg))
    # A normal dynamic symbol
    tokens.delete(symbeg)
    tstring_end = consume_tstring_end(symbeg.location)
    DynaSymbol.new(
      quote: symbeg.value,
      parts: string_content.parts,
      location: symbeg.location.to(tstring_end.location)
    )
  else
    # A dynamic symbol as a hash key
    tstring_beg = consume_token(TStringBeg)
    label_end = consume_token(LabelEnd)
    DynaSymbol.new(
      parts: string_content.parts,
      quote: label_end.value[0],
      location: tstring_beg.location.to(label_end.location)
    )
  end
end