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hdl.rec: implement Record.like.

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Fixes #120.
This commit is contained in:
whitequark 2019-07-02 17:35:00 +00:00
parent b67f5cfa65
commit 34f110100a
2 changed files with 20 additions and 0 deletions
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10
nmigen/hdl/rec.py
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@ -69,6 +69,16 @@ class Layout:
# Unlike most Values, Record *can* be subclassed.
class Record(Value):
@classmethod
def like(cls, other, name=None, name_suffix=None, src_loc_at=0):
if name is not None:
new_name = str(name)
elif name_suffix is not None:
new_name = other.name + str(name_suffix)
else:
new_name = tracer.get_var_name(depth=2 + src_loc_at, default=None)
return cls(other.layout, new_name)
def __init__(self, layout, name=None, *, fields=None):
if name is None:
name = tracer.get_var_name(default=None)