From f2b4fe83f6fc853a68653bd5e3d9fe0648c3d105 Mon Sep 17 00:00:00 2001
From: Scott <scott@wannabe.house>
Date: Sun, 30 Jan 2022 22:09:43 -0800
Subject: Fix a recent bug in executors.  Thread executor needs to return its
 future.

---
 smart_future.py | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

(limited to 'smart_future.py')

diff --git a/smart_future.py b/smart_future.py
index 2f3cbd9..604c149 100644
--- a/smart_future.py
+++ b/smart_future.py
@@ -28,9 +28,11 @@ def wait_any(
     real_futures = []
     smart_future_by_real_future = {}
     completed_futures = set()
-    for _ in futures:
-        real_futures.append(_.wrapped_future)
-        smart_future_by_real_future[_.wrapped_future] = _
+    for f in futures:
+        assert type(f) == SmartFuture
+        real_futures.append(f.wrapped_future)
+        smart_future_by_real_future[f.wrapped_future] = f
+
     while len(completed_futures) != len(real_futures):
         newly_completed_futures = concurrent.futures.as_completed(real_futures)
         for f in newly_completed_futures:
@@ -56,7 +58,11 @@ def wait_all(
     *,
     log_exceptions: bool = True,
 ) -> None:
-    real_futures = [x.wrapped_future for x in futures]
+    real_futures = []
+    for f in futures:
+        assert type(f) == SmartFuture
+        real_futures.append(f.wrapped_future)
+
     (done, not_done) = concurrent.futures.wait(
         real_futures, timeout=None, return_when=concurrent.futures.ALL_COMPLETED
     )
@@ -83,6 +89,7 @@ class SmartFuture(DeferredOperand):
     """
 
     def __init__(self, wrapped_future: fut.Future) -> None:
+        assert type(wrapped_future) == fut.Future
         self.wrapped_future = wrapped_future
         self.id = id_generator.get("smart_future_id")
 
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