From 0bb8c124cae1b42aa6c242c9bc30ca24fa4f1972 Mon Sep 17 00:00:00 2001
From: "Meir Shpilraien (Spielrein)" <meir@redislabs.com>
Date: Sun, 22 Oct 2023 15:37:21 +0300
Subject: [PATCH] Avoid passing NULL into from_raw_parts in case there are zero
 arguments on module load. (#371)

---
 src/redismodule.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/redismodule.rs b/src/redismodule.rs
index 2584aed5..46ed3ec1 100644
--- a/src/redismodule.rs
+++ b/src/redismodule.rs
@@ -101,6 +101,9 @@ pub fn decode_args(
     argv: *mut *mut raw::RedisModuleString,
     argc: c_int,
 ) -> Vec<RedisString> {
+    if argv.is_null() {
+        return Vec::new();
+    }
     unsafe { slice::from_raw_parts(argv, argc as usize) }
         .iter()
         .map(|&arg| RedisString::new(NonNull::new(ctx), arg))