def make_update(key: MichelsonType,
val: Optional[MichelsonType]) -> dict:
update = {
'key': key.to_micheline_value(mode=mode),
'key_hash': forge_script_expr(key.pack(legacy=True))
}
if val is not None:
update['value'] = val.to_micheline_value(mode=mode)
return update
def get(self, key: MichelsonType, dup=True) -> Optional[MichelsonType]:
self.args[0].assert_type_equal(type(key))
val = next((v for k, v in self if k == key),
Undefined) # search in diff
if val is Undefined:
assert self.context, f'context is not attached'
key_hash = forge_script_expr(key.pack(legacy=True))
val_expr = self.context.get_big_map_value(self.ptr, key_hash)
if val_expr is None:
return None
else:
return self.args[1].from_micheline_value(val_expr)
else:
return val
def get_key_hash(self, key_obj):
key = self.args[0].from_python_object(key_obj)
return forge_script_expr(key.pack(legacy=True))
def test_get_key_hash(self, val_expr, type_expr, expected):
ty = MichelsonType.match(type_expr)
key = ty.from_micheline_value(val_expr).pack(legacy=True)
self.assertEqual(expected, forge_script_expr(key))