From da93937b1982e64baf76a9b44e7b187fb0c23c09 Mon Sep 17 00:00:00 2001
From: Ian Storm Taylor <ian@ianstormtaylor.com>
Date: Fri, 21 Sep 2018 09:56:20 -0700
Subject: [PATCH] fix benchmarks

---
 benchmark/slate-react/rendering/decoration.js | 4 +++-
 packages/slate/src/models/decoration.js       | 9 +++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/benchmark/slate-react/rendering/decoration.js b/benchmark/slate-react/rendering/decoration.js
index a811d1e60..4d7a59ec3 100644
--- a/benchmark/slate-react/rendering/decoration.js
+++ b/benchmark/slate-react/rendering/decoration.js
@@ -42,7 +42,9 @@ const decorations = texts.flatMap((t, index) => {
         key: t.key,
         offset: 1,
       },
-      marks: [{ type: 'underline' }],
+      mark: {
+        type: 'underline',
+      },
     },
   ]
 })
diff --git a/packages/slate/src/models/decoration.js b/packages/slate/src/models/decoration.js
index 287908041..5d79e2345 100644
--- a/packages/slate/src/models/decoration.js
+++ b/packages/slate/src/models/decoration.js
@@ -106,6 +106,15 @@ class Decoration extends Record(DEFAULTS) {
 
   static fromJSON(object) {
     const { anchor, focus, mark } = object
+
+    if (!mark) {
+      throw new Error(
+        `Decorations must be created with a \`mark\`, but you passed: ${JSON.stringify(
+          object
+        )}`
+      )
+    }
+
     const decoration = new Decoration({
       anchor: Point.fromJSON(anchor || {}),
       focus: Point.fromJSON(focus || {}),