From 294e606649078b7fd092ad7489a70a796694efa2 Mon Sep 17 00:00:00 2001
From: Nokome Bentley <nokome@stenci.la>
Date: Fri, 14 Jan 2022 11:50:14 +1300
Subject: [PATCH] fix(CodeExecutable): Remove `CodeExpression` variant from
 `codeDependencies`

---
 schema/CodeExecutable.schema.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/schema/CodeExecutable.schema.yaml b/schema/CodeExecutable.schema.yaml
index 108421c632..b3a6d2b353 100644
--- a/schema/CodeExecutable.schema.yaml
+++ b/schema/CodeExecutable.schema.yaml
@@ -16,8 +16,10 @@ properties:
     items:
       anyOf:
         - $ref: CodeChunk
-        - $ref: CodeExpression
         - $ref: Parameter
+    $comment: |
+      Note that this excludes `CodeExpression` nodes since they should not have side effects
+      (e.g. assigning variables) that would cause another node to be dependent upon them.
   codeDependents:
     '@id': stencila:codeDependents
     description: The downstream dependents of the code.