def execute(self, scope, sexp):
if types.is_atomic(sexp):
return self.eval(scope, sexp)
if types.is_nil(sexp):
return sexp
func = self.eval(scope, sexp.car)
args = list(sexp.cdr)
if types.is_primitive(func):
return self.invoke(scope, func, args)
if types.is_macro(func):
return self.eval(scope, self.invoke(scope, func, args))
if types.is_function(func):
return self.invoke(scope, func, (self.eval(scope, arg) for arg in args))
raise LispException("%s is not callable" % repr(func), sexp)
def atomic(self, scope, args): return types.py_to_type(types.is_atomic(args[0]))