class SyntaxTree::Parser

def on_string_dvar(variable)

on_string_dvar: ((Backref | VarRef) variable) -> StringDVar
:call-seq: 
def on_string_dvar(variable)
  embvar = consume_token(EmbVar)
  StringDVar.new(
    variable: variable,
    location: embvar.location.to(variable.location)
  )
end