From 19232593ba495aa7ac6347b45a9a78d218e6e871 Mon Sep 17 00:00:00 2001
From: Sean Dewar <seandewar@users.noreply.github.com>
Date: Thu, 29 Jul 2021 22:32:22 +0100
Subject: fix(f_insert): partially port v8.2.0634

Fixes a crash in f_insert() when inserting into a NULL blob.
Include blob-related test changes and some other simple changes.
---
 src/nvim/eval/funcs.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/nvim/eval/funcs.c')

diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index 2b844af03f..b3afa332f8 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -4984,6 +4984,10 @@ static void f_insert(typval_T *argvars, typval_T *rettv, FunPtr fptr)
   bool error = false;
 
   if (argvars[0].v_type == VAR_BLOB) {
+    if (argvars[0].vval.v_blob == NULL) {
+      return;
+    }
+
     long before = 0;
     const int len = tv_blob_len(argvars[0].vval.v_blob);
 
-- 
cgit