From dab24bbd0f24a67d51e93c905f01c22ce418bf5d Mon Sep 17 00:00:00 2001
From: Dmitry Dodzin <d.dodzin@gmail.com>
Date: Sat, 8 Nov 2025 15:43:59 +0200
Subject: [PATCH] Allow passing null to contains function

---
 src/context/builtins.rs | 1 +
 src/lib.rs              | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/context/builtins.rs b/src/context/builtins.rs
index 3825de4..d26264e 100644
--- a/src/context/builtins.rs
+++ b/src/context/builtins.rs
@@ -17,6 +17,7 @@ use crate::error::{JsltError, Result};
 #[static_function]
 pub fn contains(element: &Value, sequence: &Value) -> Result<Value> {
   match sequence {
+    Value::Null => Ok(Value::Bool(false)),
     Value::Array(array) => Ok(array.contains(element).into()),
     Value::Object(object) => Ok(
       element
diff --git a/src/lib.rs b/src/lib.rs
index 363d965..101ce0b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -488,6 +488,7 @@ mod tests {
   #[case("\"no\"", "{\"no\" : false}", "true")]
   #[case("1", "{\"1\" : false}", "true")]
   #[case("\"ab\"", "\"abc\"", "true")]
+  #[case("\"ab\"", "null", "false")]
   fn function_contains(
     #[case] left: Value,
     #[case] right: Value,