def set_root_hash(self, root_hash):
assert is_string(root_hash)
assert len(root_hash) in [0, 32]
if root_hash == BLANK_ROOT:
self.root_node = BLANK_NODE
self._root_hash = BLANK_ROOT
return
self.root_node = self._decode_to_node(root_hash)
self._root_hash = root_hash
def set_root_hash(self, root_hash):
assert is_string(root_hash)
assert len(root_hash) in [0, 32]
if self.transient:
self.transient_root_hash = root_hash
return
if root_hash == BLANK_ROOT:
self.root_node = BLANK_NODE
return
self.root_node = self._decode_to_node(root_hash)
def update(self, key, value):
'''
:param key: a string
:value: a string
'''
if not is_string(key):
raise Exception("Key must be string")
# if len(key) > 32:
# raise Exception("Max key length is 32")
if not is_string(value):
raise Exception("Value must be string")
# if value == '':
# return self.delete(key)
self.root_node = self._update_and_delete_storage(
self.root_node, bin_to_nibbles(to_string(key)), to_string(value))
self.get_root_hash()
def update(self, key, value):
'''
:param key: a string
:value: a string
'''
if not is_string(key):
raise Exception("Key must be string")
# if len(key) > 32:
# raise Exception("Max key length is 32")
if not is_string(value):
raise Exception("Value must be string")
# if value == '':
# return self.delete(key)
self.root_node = self._update_and_delete_storage(
self.root_node,
bin_to_nibbles(to_string(key)),
value)
self.get_root_hash()
def delete(self, key):
'''
:param key: a string with length of [0, 32]
'''
if not is_string(key):
raise Exception("Key must be string")
if len(key) > 32:
raise Exception("Max key length is 32")
self.root_node = self._delete_and_delete_storage(
self.root_node, bin_to_nibbles(to_string(key)))
self.get_root_hash()
def delete(self, key):
'''
:param key: a string with length of [0, 32]
'''
if not is_string(key):
raise Exception("Key must be string")
if len(key) > 32:
raise Exception("Max key length is 32")
self.root_node = self._delete_and_delete_storage(
self.root_node,
bin_to_nibbles(to_string(key)))
self.get_root_hash()
def _dec(x):
if is_string(x) and x.startswith(b'0x'):
return decode_hex(x[2:])
return x
def _dec(x):
if is_string(x) and x.startswith(b'0x'):
return decode_hex(x[2:])
return x
def encode_node(nd):
if is_string(nd):
return encode_hex(nd)
else:
return encode_hex(rlp.encode(nd))
def encode_node(nd):
if is_string(nd):
return encode_hex(nd)
else:
return encode_hex(rlp_encode(nd))
