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Hexdump, better __str__ for ByteBuffer

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We broke str(ByteBuffer) with the util.py commit, but having that return a
possibly megabytes-long string was stupid anyway.  It now returns a string just
indicating that it's not really a printable thing rather than the still
probably extremely long repr().

Added a hexdump function to call util.hexdump cleanly.  This is really only
here for debugging.  I can imagine a lot of things you could do to account for
possibilities later on, but YAGNI applies (including that if you do need it,
you can add it then.)
This commit is contained in:
T. Joseph Carter 2017-07-18 10:15:47 -07:00
parent ae199947b0
commit ed6156c3c6
1 changed files with 9 additions and 5 deletions
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14
blocksfree/buffer/bytebuffer.py
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@ -126,10 +126,14 @@ class ByteBuffer(BufferType):
return 'ByteBuffer({_buf}, {_changed}, {_locked})'.format_map(
vars(self))
def __str__(self):
"""Return str(self)
def __str__(self) -> str:
"""Implement str(self)"""
return '<ByteBuffer of {} bytes>'.format(len(self._buf))
This will be a very long string containing newlines for any buffer of
non-trivial length
def hexdump(self, *args: List, **kwargs: Dict) -> None:
"""Performas a canonical hexdump of self.
Args:
Any for blocksfree.util.hexdump, see that function for details.
"""
return '\n'.join(gen_hexdump(self._buf))
util.hexdump(self._buf, *args, **kwargs)