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extract function arg_types #85

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extract function arg_types #85

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8 changes: 7 additions & 1 deletion multipledispatch/dispatcher.py
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Original file line number Diff line number Diff line change
Expand Up @@ -195,8 +195,14 @@ def reorder(self, on_ambiguity=ambiguity_warn):
on_ambiguity(self, amb)
return od

def arg_types(self, args):
"""Determine of types of the arugments.
Could be overrided to better support metaclasses.
"""
return tuple([type(arg) for arg in args])

def __call__(self, *args, **kwargs):
types = tuple([type(arg) for arg in args])
types = self.arg_types(args)
try:
func = self._cache[types]
except KeyError:
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