Files
smnp-py/smnp/function/signature.py
2019-07-09 22:56:33 +02:00

57 lines
1.5 KiB
Python

# from smnp.type.model import Type
#
class Signature:
def __init__(self, check, string, matchers):
self.check = check
self.string = string
self.matchers = matchers
def varargSignature(varargMatcher, *basicSignature):
def check(args):
if len(basicSignature) > len(args):
return doesNotMatchVararg(basicSignature)
for i in range(len(basicSignature)):
if not basicSignature[i].match(args[i]):
return doesNotMatchVararg(basicSignature)
for i in range(len(basicSignature), len(args)):
if not varargMatcher.match(args[i]):
return doesNotMatchVararg(basicSignature)
return True, (*args[:len(basicSignature)]), args[len(basicSignature):]
string = f"({', '.join([str(m) for m in basicSignature])}{', ' if len(basicSignature) > 0 else ''}{str(varargMatcher)}...)"
return Signature(check, string, [varargMatcher, *basicSignature])
def doesNotMatchVararg(basicSignature):
return (False, *[None for n in basicSignature], None)
def signature(*signature):
def check(args):
if len(signature) != len(args):
return doesNotMatch(signature)
for s, a in zip(signature, args):
if not s.match(a):
return doesNotMatch(signature)
return (True, *args)
string = f"({', '.join([str(m) for m in signature])})"
return Signature(check, string, signature)
def doesNotMatch(sign):
return (False, *[None for n in sign])