-# The MIT License (MIT)
-#
-# Copyright (c) 2018 Francis Deslauriers <francis.deslauriers@efficios.com>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-import collections
-from bt2 import native_bt, object
-
-
-class Scope:
- PACKET_CONTEXT = native_bt.SCOPE_PACKET_CONTEXT
- EVENT_COMMON_CONTEXT = native_bt.SCOPE_EVENT_COMMON_CONTEXT
- EVENT_SPECIFIC_CONTEXT = native_bt.SCOPE_EVENT_SPECIFIC_CONTEXT
- EVENT_PAYLOAD = native_bt.SCOPE_EVENT_PAYLOAD
-
-
-class _FieldPathItem:
- pass
-
-
-class _IndexFieldPathItem(_FieldPathItem):
- def __init__(self, index):
- self._index = index
-
- @property
- def index(self):
- return self._index
-
-
-class _CurrentArrayElementFieldPathItem(_FieldPathItem):
- pass
-
-
-class _FieldPath(object._SharedObject, collections.abc.Iterable):
- _get_ref = staticmethod(native_bt.field_path_get_ref)
- _put_ref = staticmethod(native_bt.field_path_put_ref)
-
- @property
- def root_scope(self):
- scope = native_bt.field_path_get_root_scope(self._ptr)
- return _SCOPE_TO_OBJ[scope]
-
- def __len__(self):
- return native_bt.field_path_get_item_count(self._ptr)
-
- def __iter__(self):
- for idx in range(len(self)):
- item_ptr = native_bt.field_path_borrow_item_by_index_const(self._ptr, idx)
- assert item_ptr is not None
- item_type = native_bt.field_path_item_get_type(item_ptr)
- if item_type == native_bt.FIELD_PATH_ITEM_TYPE_INDEX:
- idx = native_bt.field_path_item_index_get_index(item_ptr)
- yield _IndexFieldPathItem(idx)
- elif item_type == native_bt.FIELD_PATH_ITEM_TYPE_CURRENT_ARRAY_ELEMENT:
- yield _CurrentArrayElementFieldPathItem()
- else:
- assert False
-
-
-_SCOPE_TO_OBJ = {
- native_bt.SCOPE_PACKET_CONTEXT: Scope.PACKET_CONTEXT,
- native_bt.SCOPE_EVENT_COMMON_CONTEXT: Scope.EVENT_COMMON_CONTEXT,
- native_bt.SCOPE_EVENT_SPECIFIC_CONTEXT: Scope.EVENT_SPECIFIC_CONTEXT,
- native_bt.SCOPE_EVENT_PAYLOAD: Scope.EVENT_PAYLOAD
-}