async def iter_values(
self,
start: Key = Key(0),
end: Optional[Key] = None,
) -> AsyncIterator[SGNodeAPI]:
if end is None:
direction = RIGHT
elif end < start:
direction = LEFT
elif end >= start:
direction = RIGHT
else:
raise Exception("Invariant")
left, node, right = await self.find(start)
if node is not None:
cursor = node
elif direction is RIGHT:
cursor = right
elif direction is LEFT:
cursor = left
else:
raise Exception("Invariant")
while cursor is not None:
if end is not None and not direction.comparison_fn(
end, cursor.key):
break
await trio.hazmat.checkpoint()
yield cursor
cursor = await self._get_neighbor(cursor, 0, direction)
async def iter_items(
self,
start: Key = Key(0),
end: Optional[Key] = None,
) -> AsyncIterator[Tuple[Key, SGNodeAPI]]:
async for node in self.iter_values(start, end):
yield node.key, node
async def iter_keys(
self,
start: Key = Key(0),
end: Optional[Key] = None,
) -> AsyncIterator[Key]:
async for node in self.iter_values(start, end):
yield node.key
def content_key_to_graph_key(key: bytes) -> Key:
return Key(big_endian_to_int(key))
def iter_items(
self,
start: Key = Key(0),
end: Optional[Key] = None) -> AsyncIterator[Tuple[Key, SGNodeAPI]]:
...
def iter_values(self,
start: Key = Key(0),
end: Optional[Key] = None) -> AsyncIterator[SGNodeAPI]:
...
def iter_keys(self,
start: Key = Key(0),
end: Optional[Key] = None) -> AsyncIterator[Key]:
...