From e1ce293a48721500a19247201cc81a3cc41099d3 Mon Sep 17 00:00:00 2001
From: Tim <tim.reichen@gmail.com>
Date: Tue, 27 Aug 2024 13:50:02 +0200
Subject: [PATCH 1/2] initial commit

---
 yaml/_type/omap.ts | 32 ++++++++++----------------------
 1 file changed, 10 insertions(+), 22 deletions(-)

diff --git a/yaml/_type/omap.ts b/yaml/_type/omap.ts
index 74084ce68960..2c79dd040194 100644
--- a/yaml/_type/omap.ts
+++ b/yaml/_type/omap.ts
@@ -7,30 +7,18 @@ import type { Type } from "../_type.ts";
 import { getObjectTypeString } from "../_utils.ts";
 
 function resolveYamlOmap(data: Record<string, unknown>[]): boolean {
-  const objectKeys: string[] = [];
-  let pairKey = "";
-  let pairHasKey = false;
-
-  for (const pair of data) {
-    pairHasKey = false;
-
-    if (getObjectTypeString(pair) !== "[object Object]") {
-      return false;
-    }
-
-    for (pairKey in pair) {
-      if (Object.hasOwn(pair, pairKey)) {
-        if (!pairHasKey) pairHasKey = true;
-        else return false;
-      }
+  if (!data.length) return false;
+
+  const objectKeys = new Set();
+  for (const object of data) {
+    if (getObjectTypeString(object) !== "[object Object]") return false;
+    const keys = Object.keys(object);
+    if (keys.length !== 1) return false;
+    for (const key of keys) {
+      if (objectKeys.has(key)) return false;
+      objectKeys.add(key);
     }
-
-    if (!pairHasKey) return false;
-
-    if (!objectKeys.includes(pairKey)) objectKeys.push(pairKey);
-    else return false;
   }
-
   return true;
 }
 

From 5ece346b091bd365d5da7b3e569400a792fddbb4 Mon Sep 17 00:00:00 2001
From: Tim <tim.reichen@gmail.com>
Date: Tue, 27 Aug 2024 14:56:05 +0200
Subject: [PATCH 2/2] update

---
 yaml/_type/omap.ts | 2 --
 1 file changed, 2 deletions(-)

diff --git a/yaml/_type/omap.ts b/yaml/_type/omap.ts
index 2c79dd040194..88682338a9d9 100644
--- a/yaml/_type/omap.ts
+++ b/yaml/_type/omap.ts
@@ -7,8 +7,6 @@ import type { Type } from "../_type.ts";
 import { getObjectTypeString } from "../_utils.ts";
 
 function resolveYamlOmap(data: Record<string, unknown>[]): boolean {
-  if (!data.length) return false;
-
   const objectKeys = new Set();
   for (const object of data) {
     if (getObjectTypeString(object) !== "[object Object]") return false;