Remove lodash dependencies

package.json

@@ -48,9 +48,6 @@
     "tailwindcss": "^3.2.2"
   },
   "dependencies": {
-    "lodash.castarray": "^4.4.0",
-    "lodash.isplainobject": "^4.0.6",
-    "lodash.merge": "^4.6.2",
     "postcss-selector-parser": "6.0.10"
   },
   "jest": {

src/index.js

@@ -1,8 +1,6 @@
 const plugin = require('tailwindcss/plugin')
-const merge = require('lodash.merge')
-const castArray = require('lodash.castarray')
 const styles = require('./styles')
-const { commonTrailingPseudos } = require('./utils')
+const { commonTrailingPseudos, isObject, isPlainObject, merge, castArray } = require('./utils')
 
 const computed = {
   // Reserved for future "magic properties", for example:
@@ -25,10 +23,6 @@ function inWhere(selector, { className, modifier, prefix }) {
   return `:where(${selectorPrefix}${selector}):not(:where([class~="${prefixedNot}"],[class~="${prefixedNot}"] *))`
 }
 
-function isObject(value) {
-  return typeof value === 'object' && value !== null
-}
-
 function configToCss(config = {}, { target, className, modifier, prefix }) {
   function updateSelector(k, v) {
     if (target === 'legacy') {
@@ -138,3 +132,4 @@ module.exports = plugin.withOptions(
     }
   }
 )
+

src/utils.js

@@ -1,9 +1,67 @@
-const isPlainObject = require('lodash.isplainobject')
-
 const parser = require('postcss-selector-parser')
 const parseSelector = parser()
 
+function isObject(value) {
+  return typeof value === 'object' && value !== null
+}
+
+function isPlainObject(value) {
+  if (typeof value !== 'object' || value === null) {
+    return false
+  }
+
+  if (Object.prototype.toString.call(value) !== '[object Object]') {
+    return false
+  }
+
+  if (Object.getPrototypeOf(value) === null) {
+    return true
+  }
+
+  let proto = value
+  while (Object.getPrototypeOf(proto) !== null) {
+    proto = Object.getPrototypeOf(proto)
+  }
+
+  return Object.getPrototypeOf(value) === proto
+}
+
+function merge(target, ...sources) {
+  if (!sources.length) return target
+  const source = sources.shift()
+
+  if (isObject(target) && isObject(source)) {
+    for (const key in source) {
+      if (Array.isArray(source[key])) {
+        if (!target[key]) target[key] = []
+        source[key].forEach((item, index) => {
+          if (isPlainObject(item) && isPlainObject(target[key][index])) {
+            target[key][index] = merge(target[key][index], item)
+          } else {
+            target[key][index] = item
+          }
+        })
+      } else if (isPlainObject(source[key])) {
+        if (!target[key]) target[key] = {}
+        merge(target[key], source[key])
+      } else {
+        target[key] = source[key]
+      }
+    }
+  }
+
+  return merge(target, ...sources)
+}
+
+function castArray(value) {
+  return Array.isArray(value) ? value : [value]
+}
+
 module.exports = {
+  isObject,
+  isPlainObject,
+  merge,
+  castArray,
   isUsableColor(color, values) {
     return isPlainObject(values) && color !== 'gray' && values[600]
   },