def test_function():
f = Function('f')
x = Symbol('x')
e = f(x)
m = Match(e)
assert m(f) == True
assert m.type(FunctionClass) == True
def __call__(self,e):
v = AutoVar()
m = Match(e)
#if m(self.old):
if m.type(FunctionClass):
if type(e) == self.old:
arg = self.new.lhs.args[0]
return self.new.rhs.subs(arg, e.args[0])
if (len(e.args)) == 0:
return e
arg = e.args
new_args = []
for a in arg:
other = self(a)
new_args.append(other)
r = e.func(*new_args)
return r
