From 7862f821de30b17ed035a3355e552d027429dc6b Mon Sep 17 00:00:00 2001
From: Sean Quah <8349537+squahtx@users.noreply.github.com>
Date: Thu, 25 Nov 2021 16:14:23 +0000
Subject: Annotate string constants in `synapse.api.constants` with `Final`
 (#11356)

This change makes mypy complain if the constants are ever reassigned,
and, more usefully, makes mypy type them as `Literal`s instead of `str`s,
allowing code of the following form to pass mypy:
```py
def do_something(membership: Literal["join", "leave"], ...): ...

do_something(Membership.JOIN, ...)
```
---
 changelog.d/11356.misc | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/11356.misc

(limited to 'changelog.d')

diff --git a/changelog.d/11356.misc b/changelog.d/11356.misc
new file mode 100644
index 0000000000..01ce6a306c
--- /dev/null
+++ b/changelog.d/11356.misc
@@ -0,0 +1 @@
+Add `Final` annotation to string constants in `synapse.api.constants` so that they get typed as `Literal`s.
-- 
cgit 1.4.1