new lint: deprecated_is_null

1 files changed, 2 insertions, 0 deletions

diff --git a/notes.txt b/notes.txt
index 0e70373..bba644c 100644
--- a/notes.txt
+++ b/notes.txt
@@ -47,6 +47,8 @@ Lint ideas
   `_: expr`)
 - redundant pattern `{...} @ inputs : expr`, replace with
   `inputs: expr`
+- useless hasAttr: `if x ? a then x.a else default` can be
+  replaced with `x.a or default`
 
 Extensions
 ----------