From a7c32b36d63d98df1123b96c497848c51d853b1b Mon Sep 17 00:00:00 2001
From: Cameron Ross <elpenguino@gmail.com>
Date: Thu, 5 Oct 2023 17:49:02 -0300
Subject: [PATCH] fix #325 - null simple keys not properly nullified

---
 source/dyaml/loader.d  | 5 +++++
 source/dyaml/scanner.d | 7 +++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/source/dyaml/loader.d b/source/dyaml/loader.d
index 2433a05..f0eda36 100644
--- a/source/dyaml/loader.d
+++ b/source/dyaml/loader.d
@@ -370,3 +370,8 @@ EOS";
     auto e = loader.load().collectException!ScannerException(unused);
     assert(e.mark.name == filename);
 }
+/// https://github.com/dlang-community/D-YAML/issues/325
+@safe unittest
+{
+    assert(Loader.fromString("--- {x: a}").load()["x"] == "a");
+}
diff --git a/source/dyaml/scanner.d b/source/dyaml/scanner.d
index e0ff74d..0a28523 100644
--- a/source/dyaml/scanner.d
+++ b/source/dyaml/scanner.d
@@ -313,8 +313,11 @@ struct Scanner
             {
                 const oldLength = possibleSimpleKeys_.length;
                 possibleSimpleKeys_.length = flowLevel_ + 1;
-                //No need to initialize the last element, it's already done in the next line.
-                possibleSimpleKeys_[oldLength .. flowLevel_] = SimpleKey.init;
+                // Make sure all the empty keys are null
+                foreach (ref emptyKey; possibleSimpleKeys_[oldLength .. flowLevel_])
+                {
+                    emptyKey.isNull = true;
+                }
             }
             possibleSimpleKeys_[flowLevel_] = key;
         }