From 9782575684d12368c1dcce8f26e0a1534820007e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philippe=20Rivi=C3=A8re?= <fil@rezo.net>
Date: Fri, 29 Apr 2022 13:31:20 -0700
Subject: [PATCH] bail out if the inferred ordinal domain has more than 10k
 values (see
 https://github.com/observablehq/plot/pull/849#issuecomment-1105874552)

---
 src/scales/ordinal.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/scales/ordinal.js b/src/scales/ordinal.js
index 90ee306dec..03f19f8cc5 100644
--- a/src/scales/ordinal.js
+++ b/src/scales/ordinal.js
@@ -109,6 +109,7 @@ function inferDomain(channels) {
     if (value === undefined) continue;
     for (const v of value) values.add(v);
   }
+  if (values.size > 10e3) throw new Error("This ordinal domain would have more than 10,000 values. If this is intentional, set the domain explicitly.");
   return sort(values, ascendingDefined);
 }