From 23758e30bc5721b6a7e303caa4a8ae16c4e08c89 Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Mon, 6 Jul 2020 16:01:49 +0000
Subject: [PATCH] Remove everything deprecated in nmigen 0.2.

---
 nmigen/back/pysim.py    | 27 +++------------------------
 nmigen/test/test_sim.py |  5 ++---
 2 files changed, 5 insertions(+), 27 deletions(-)

diff --git a/nmigen/back/pysim.py b/nmigen/back/pysim.py
index fb651e4..c27ee00 100644
--- a/nmigen/back/pysim.py
+++ b/nmigen/back/pysim.py
@@ -915,28 +915,17 @@ class _WaveformContextManager:
 
 
 class Simulator:
-    def __init__(self, fragment, **kwargs):
+    def __init__(self, fragment):
         self._state = _SimulatorState()
         self._signal_names = SignalDict()
         self._fragment = Fragment.get(fragment, platform=None).prepare()
         self._processes = _FragmentCompiler(self._state, self._signal_names)(self._fragment)
-        if kwargs: # :nocov:
-            # TODO(nmigen-0.3): remove
-            self._state.start_waveform(_VCDWaveformWriter(self._signal_names, **kwargs))
         self._clocked = set()
 
     def _check_process(self, process):
         if not (inspect.isgeneratorfunction(process) or inspect.iscoroutinefunction(process)):
-            if inspect.isgenerator(process) or inspect.iscoroutine(process):
-                warnings.warn("instead of generators, use generator functions as processes; "
-                              "this allows the simulator to be repeatedly reset",
-                              DeprecationWarning, stacklevel=3)
-                def wrapper():
-                    yield from process
-                return wrapper
-            else:
-                raise TypeError("Cannot add a process {!r} because it is not a generator function"
-                                .format(process))
+            raise TypeError("Cannot add a process {!r} because it is not a generator function"
+                            .format(process))
         return process
 
     def _add_coroutine_process(self, process, *, default_cmd):
@@ -1107,13 +1096,3 @@ class Simulator:
         waveform_writer = _VCDWaveformWriter(self._signal_names,
             vcd_file=vcd_file, gtkw_file=gtkw_file, traces=traces)
         return _WaveformContextManager(self._state, waveform_writer)
-
-    # TODO(nmigen-0.3): remove
-    @deprecated("instead of `with Simulator(fragment, ...) as sim:`, use "
-                "`sim = Simulator(fragment); with sim.write_vcd(...):`")
-    def __enter__(self): # :nocov:
-        return self
-
-    # TODO(nmigen-0.3): remove
-    def __exit__(self, *args): # :nocov:
-        self._state.finish_waveform()
diff --git a/nmigen/test/test_sim.py b/nmigen/test/test_sim.py
index 8f48207..adc6c26 100644
--- a/nmigen/test/test_sim.py
+++ b/nmigen/test/test_sim.py
@@ -547,9 +547,8 @@ class SimulatorIntegrationTestCase(FHDLTestCase):
 
     def test_add_process_wrong_generator(self):
         with self.assertSimulation(Module()) as sim:
-            with self.assertWarns(DeprecationWarning,
-                    msg="instead of generators, use generator functions as processes; "
-                        "this allows the simulator to be repeatedly reset"):
+            with self.assertRaisesRegex(TypeError,
+                    r"^Cannot add a process <.+?> because it is not a generator function$"):
                 def process():
                     yield Delay()
                 sim.add_process(process())
-- 
2.30.2