From a71e86b5a97e6e250f54853b04060c86b40aed9a Mon Sep 17 00:00:00 2001
From: Henry Schreiner <henryschreineriii@gmail.com>
Date: Fri, 22 Dec 2023 15:57:05 -0500
Subject: [PATCH] fix: better error if requires is not a set

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
---
 src/repo_review/processor.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/repo_review/processor.py b/src/repo_review/processor.py
index 53ee3e2..b4918dc 100644
--- a/src/repo_review/processor.py
+++ b/src/repo_review/processor.py
@@ -199,6 +199,11 @@ def process(
     graph: dict[str, set[str]] = {
         n: getattr(t, "requires", set()) for n, t in tasks.items()
     }
+    for name, s in graph.items():
+        if not isinstance(s, set):
+            msg = f"requires must be a set, got {s!r} for {name!r}"  # type: ignore[unreachable]
+            raise TypeError(msg)
+
     # Keep track of which checks have been completed
     completed: dict[str, str | None] = {}