def Env(inputs, outputs, validate=True):
e = FunctionGraph(inputs, outputs, clone=False)
e.attach_feature(destroyhandler.DestroyHandler())
e.attach_feature(ReplaceValidate())
if validate:
e.validate()
return e
def test_straightforward(self):
class MyType(Type):
def __init__(self, name):
self.name = name
def __str__(self):
return self.name
def __repr__(self):
return self.name
def __eq__(self, other):
return isinstance(other, MyType)
class MyOp(Op):
__props__ = ("nin", "name")
def __init__(self, nin, name):
self.nin = nin
self.name = name
def make_node(self, *inputs):
def as_variable(x):
assert isinstance(x, Variable)
return x
assert len(inputs) == self.nin
inputs = list(map(as_variable, inputs))
for input in inputs:
if not isinstance(input.type, MyType):
raise Exception("Error 1")
outputs = [MyType(self.name + "_R")()]
return Apply(self, inputs, outputs)
def __str__(self):
return self.name
sigmoid = MyOp(1, "Sigmoid")
add = MyOp(2, "Add")
dot = MyOp(2, "Dot")
def MyVariable(name):
return Variable(MyType(name), None, None)
def inputs():
x = MyVariable("x")
y = MyVariable("y")
z = MyVariable("z")
return x, y, z
x, y, z = inputs()
e0 = dot(y, z)
e = add(add(sigmoid(x), sigmoid(sigmoid(z))), dot(add(x, y), e0))
g = FunctionGraph([x, y, z], [e], clone=False)
g.attach_feature(NodeFinder())
assert hasattr(g, "get_nodes")
for type, num in ((add, 3), (sigmoid, 3), (dot, 2)):
if not len([t for t in g.get_nodes(type)]) == num:
raise Exception("Expected: %i times %s" % (num, type))
new_e0 = add(y, z)
assert e0.owner in g.get_nodes(dot)
assert new_e0.owner not in g.get_nodes(add)
g.replace(e0, new_e0)
assert e0.owner not in g.get_nodes(dot)
assert new_e0.owner in g.get_nodes(add)
for type, num in ((add, 4), (sigmoid, 3), (dot, 1)):
if not len([t for t in g.get_nodes(type)]) == num:
raise Exception("Expected: %i times %s" % (num, type))