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hdl.xfrm: Abstract*Transformer→*Visitor

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whitequark 2018-12-22 06:03:38 +00:00
parent 37b81309d3
commit 98a9744be4
2 changed files with 10 additions and 10 deletions
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12
nmigen/hdl/xfrm.py
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@ -9,13 +9,13 @@ from .cd import *
from .ir import *
__all__ = ["AbstractValueTransformer", "ValueTransformer",
"AbstractStatementTransformer", "StatementTransformer",
__all__ = ["ValueVisitor", "ValueTransformer",
"StatementVisitor", "StatementTransformer",
"FragmentTransformer",
"DomainRenamer", "DomainLowerer", "ResetInserter", "CEInserter"]
class AbstractValueTransformer(metaclass=ABCMeta):
class ValueVisitor(metaclass=ABCMeta):
@abstractmethod
def on_Const(self, value):
pass # :nocov:
@ -91,7 +91,7 @@ class AbstractValueTransformer(metaclass=ABCMeta):
return self.on_value(value)
class ValueTransformer(AbstractValueTransformer):
class ValueTransformer(ValueVisitor):
def on_Const(self, value):
return value
@ -124,7 +124,7 @@ class ValueTransformer(AbstractValueTransformer):
self.on_value(value.index))
class AbstractStatementTransformer(metaclass=ABCMeta):
class StatementVisitor(metaclass=ABCMeta):
@abstractmethod
def on_Assign(self, stmt):
pass # :nocov:
@ -155,7 +155,7 @@ class AbstractStatementTransformer(metaclass=ABCMeta):
return self.on_statement(value)
class StatementTransformer(AbstractStatementTransformer):
class StatementTransformer(StatementVisitor):
def on_value(self, value):
return value