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Allow multiple values to be used when registering rules.

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This commit is contained in:
Dave Halter
2017-08-19 12:51:10 +02:00
parent 820e94e03a
commit d5d7518ca4
1 changed files with 10 additions and 3 deletions
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13
parso/normalizer.py
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@@ -86,15 +86,22 @@ class Normalizer(use_metaclass(_NormalizerMeta)):
return cls._register_rule(**kwargs)
@classmethod
def _register_rule(cls, value=None, type=None):
def _register_rule(cls, value=None, values=(), type=None, types=()):
if value is None and type is None:
raise ValueError("You must register at least something.")
def decorator(rule_cls):
copied_values = list(values)
copied_types = list(types)
if value is not None:
cls.rule_value_classes.setdefault(value, []).append(rule_cls)
copied_values.append(value)
if type is not None:
cls.rule_type_classes.setdefault(type, []).append(rule_cls)
copied_types.append(type)
for v in copied_values:
cls.rule_value_classes.setdefault(v, []).append(rule_cls)
for t in copied_types:
cls.rule_type_classes.setdefault(t, []).append(rule_cls)
return rule_cls
return decorator