feat: support caching options as object

Author: pi0

src/lib/setupContext.js

@@ -146,6 +146,7 @@ function resolveConfigPath(pathOrConfig) {
 }
 
 let configPathCache = new LRU({ maxSize: 100 })
+let lastTailwindConfigHash = null
 
 // Get the config object based on a path
 function getTailwindConfig(configOrPath) {
@@ -174,7 +175,7 @@ function getTailwindConfig(configOrPath) {
     configOrPath.config === undefined ? configOrPath : configOrPath.config
   )
 
-  return [newConfig, null, hash(newConfig)]
+  return [newConfig, null, newConfig.hash || hash(newConfig)]
 }
 
 let fileModifiedMap = new Map()
@@ -656,8 +657,10 @@ function setupContext(configOrPath) {
     if (!contextDependenciesChanged) {
       // If this file already has a context in the cache and we don't need to
       // reset the context, return the cached context.
-      if (isConfigFile && contextMap.has(sourcePath)) {
-        return contextMap.get(sourcePath)
+      if (contextMap.has(sourcePath)) {
+        if (isConfigFile || (lastTailwindConfigHash && tailwindConfigHash === lastTailwindConfigHash)) {
+          return contextMap.get(sourcePath)
+        }
       }
 
       // If the config used already exists in the cache, return that.
@@ -669,6 +672,8 @@ function setupContext(configOrPath) {
       }
     }
 
+    lastTailwindConfigHash = tailwindConfigHash
+
     // If this source is in the context map, get the old context.
     // Remove this source from the context sources for the old context,
     // and clean up that context if no one else is using it. This can be