57 lines
1.1 KiB
Python
57 lines
1.1 KiB
Python
from binascii import hexlify, unhexlify
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from lbry.wallet.client.constants import NULL_HASH32
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class TXRef:
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__slots__ = '_id', '_hash'
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def __init__(self):
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self._id = None
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self._hash = None
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@property
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def id(self):
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return self._id
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@property
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def hash(self):
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return self._hash
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@property
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def height(self):
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return -1
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@property
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def is_null(self):
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return self.hash == NULL_HASH32
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class TXRefImmutable(TXRef):
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__slots__ = ('_height',)
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def __init__(self):
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super().__init__()
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self._height = -1
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@classmethod
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def from_hash(cls, tx_hash: bytes, height: int) -> 'TXRefImmutable':
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ref = cls()
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ref._hash = tx_hash
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ref._id = hexlify(tx_hash[::-1]).decode()
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ref._height = height
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return ref
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@classmethod
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def from_id(cls, tx_id: str, height: int) -> 'TXRefImmutable':
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ref = cls()
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ref._id = tx_id
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ref._hash = unhexlify(tx_id)[::-1]
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ref._height = height
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return ref
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@property
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def height(self):
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return self._height
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