Signals now reference the Frame they're in (#94)

* Changelog update for release

CHANGELOG.md

@@ -7,11 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.14.0] - 2022-02-26
+
 ### Added
 
 - `LDF` objects can now be saved as `.ldf` files (experimental)
 - Encoding types now have references to the Signals it represents
 - `LDF` object now has functions to lookup encoding types
+- `LinSignal` now reference the `LinUnconditionalFrame` they're in
 
 ### Changed
 

ldfparser/parser.py

@@ -118,7 +118,11 @@ def _populate_ldf_frames(json: dict, ldf: LDF):
             elif 48 <= frame['frame_id'] <= 63:
                 length = 8
 
-        ldf._unconditional_frames[frame['name']] = LinUnconditionalFrame(frame['frame_id'], frame['name'], length, signals)
+        frame_obj = LinUnconditionalFrame(frame['frame_id'], frame['name'], length, signals)
+        ldf._unconditional_frames[frame['name']] = frame_obj
+
+        for (_, signal) in signals.items():
+            signal.frame = frame_obj
 
 def _populate_ldf_event_triggered_frames(json: dict, ldf: LDF):
     if "event_triggered_frames" not in json:

ldfparser/signal.py

@@ -6,6 +6,7 @@
 if TYPE_CHECKING:
     from .node import LinNode
     from .encoding import LinSignalEncodingType
+    from .frame import LinUnconditionalFrame
 
 class LinSignal:
     """
@@ -30,6 +31,7 @@ def __init__(self, name: str, width: int, init_value: Union[int, List[int]]):
         self.publisher: 'LinNode' = None
         self.subscribers: List['LinNode'] = []
         self.encoding_type: 'LinSignalEncodingType' = None
+        self.frame: 'LinUnconditionalFrame' = None
 
     def __eq__(self, o: object) -> bool:
         if isinstance(o, LinSignal):

tests/test_parser.py

@@ -121,6 +121,7 @@ def test_no_signal_subscribers():
 
     assert ldf.signal('DummySignal_0') is not None
     assert ldf.frame('DummyFrame') is not None
+    assert ldf.signal('DummySignal_0').frame.name == 'DummyFrame'
 
 
 @pytest.mark.unit