From 8ceedb2dd64b7e99f6a6de7f6fb68ac65d66d862 Mon Sep 17 00:00:00 2001
From: Nick <zhongcheng509@gmail.com>
Date: Wed, 1 Sep 2021 23:01:15 +0800
Subject: [PATCH] fix: fix empty object error (#4903)

Co-authored-by: zhongcheng <zhongcheng@bytedance.com>
---
 src/plugins/animation.js        | 2 +-
 src/util/createUtilityPlugin.js | 2 +-
 src/util/flattenColorPalette.js | 2 +-
 src/util/processPlugins.js      | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/plugins/animation.js b/src/plugins/animation.js
index 9d51c80b414a..95bdba6c62c7 100644
--- a/src/plugins/animation.js
+++ b/src/plugins/animation.js
@@ -4,7 +4,7 @@ export default function () {
   return function ({ matchUtilities, theme, variants, prefix }) {
     let prefixName = (name) => prefix(`.${name}`).slice(1)
     let keyframes = Object.fromEntries(
-      Object.entries(theme('keyframes')).map(([key, value]) => {
+      Object.entries(theme('keyframes') || {}).map(([key, value]) => {
         return [
           key,
           [
diff --git a/src/util/createUtilityPlugin.js b/src/util/createUtilityPlugin.js
index ad87bc29460f..1eacf328cb1f 100644
--- a/src/util/createUtilityPlugin.js
+++ b/src/util/createUtilityPlugin.js
@@ -36,7 +36,7 @@ export default function createUtilityPlugin(
         {
           values: filterDefault
             ? Object.fromEntries(
-                Object.entries(theme(themeKey)).filter(([modifier]) => modifier !== 'DEFAULT')
+                Object.entries(theme(themeKey) || {}).filter(([modifier]) => modifier !== 'DEFAULT')
               )
             : theme(themeKey),
           variants: variants(themeKey),
diff --git a/src/util/flattenColorPalette.js b/src/util/flattenColorPalette.js
index 79b8dc3e83b7..ad5badfac2e6 100644
--- a/src/util/flattenColorPalette.js
+++ b/src/util/flattenColorPalette.js
@@ -1,7 +1,7 @@
 const flattenColorPalette = (colors) =>
   Object.assign(
     {},
-    ...Object.entries(colors).flatMap(([color, values]) =>
+    ...Object.entries(colors || {}).flatMap(([color, values]) =>
       typeof values == 'object'
         ? Object.entries(flattenColorPalette(values)).map(([number, hex]) => ({
             [color + (number === 'DEFAULT' ? '' : `-${number}`)]: hex,
diff --git a/src/util/processPlugins.js b/src/util/processPlugins.js
index afd5d51cf591..bbe3014d034a 100644
--- a/src/util/processPlugins.js
+++ b/src/util/processPlugins.js
@@ -106,7 +106,7 @@ export default function (plugins, config) {
       prefix: applyConfiguredPrefix,
       addUtilities,
       matchUtilities: (matches, { values, variants, respectPrefix, respectImportant }) => {
-        let modifierValues = Object.entries(values)
+        let modifierValues = Object.entries(values || {})
 
         let result = Object.entries(matches).flatMap(([name, utilityFunction]) => {
           return modifierValues