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borntyping/chain.py

Created July 24, 2018 09:32
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chain.py
class Chain:
def __init__(self):
self.functions = []
def and_then(self, func):
self.functions.append(func)
return self
def __call__(self, value):
result = value
for func in self.functions:
result = func(result)
return result
add = lambda x: lambda y: x+y
times = lambda x: lambda y: x*y
print(Chain().and_then(add(1)).and_then(times(2))(3))
# 8
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