.

node_modules/next/dist/esm/server/use-cache/handlers.js

@@ -0,0 +1,110 @@
+import { createDefaultCacheHandler } from '../lib/cache-handlers/default';
+const debug = process.env.NEXT_PRIVATE_DEBUG_CACHE ? (message, ...args)=>{
+    console.log(`use-cache: ${message}`, ...args);
+} : undefined;
+const handlersSymbol = Symbol.for('@next/cache-handlers');
+const handlersMapSymbol = Symbol.for('@next/cache-handlers-map');
+const handlersSetSymbol = Symbol.for('@next/cache-handlers-set');
+/**
+ * The reference to the cache handlers. We store the cache handlers on the
+ * global object so that we can access the same instance across different
+ * boundaries (such as different copies of the same module).
+ */ const reference = globalThis;
+/**
+ * Initialize the cache handlers.
+ * @param cacheMaxMemorySize - The maximum memory size of the cache in bytes, if
+ *  not provided, the default memory size will be used.
+ * @returns `true` if the cache handlers were initialized, `false` if they were already initialized.
+ */ export function initializeCacheHandlers(cacheMaxMemorySize) {
+    // If the cache handlers have already been initialized, don't do it again.
+    if (reference[handlersMapSymbol]) {
+        debug == null ? void 0 : debug('cache handlers already initialized');
+        return false;
+    }
+    debug == null ? void 0 : debug('initializing cache handlers');
+    reference[handlersMapSymbol] = new Map();
+    // Initialize the cache from the symbol contents first.
+    if (reference[handlersSymbol]) {
+        let fallback;
+        if (reference[handlersSymbol].DefaultCache) {
+            debug == null ? void 0 : debug('setting "default" cache handler from symbol');
+            fallback = reference[handlersSymbol].DefaultCache;
+        } else {
+            debug == null ? void 0 : debug('setting "default" cache handler from default');
+            fallback = createDefaultCacheHandler(cacheMaxMemorySize);
+        }
+        reference[handlersMapSymbol].set('default', fallback);
+        if (reference[handlersSymbol].RemoteCache) {
+            debug == null ? void 0 : debug('setting "remote" cache handler from symbol');
+            reference[handlersMapSymbol].set('remote', reference[handlersSymbol].RemoteCache);
+        } else {
+            debug == null ? void 0 : debug('setting "remote" cache handler from default');
+            reference[handlersMapSymbol].set('remote', fallback);
+        }
+    } else {
+        const handler = createDefaultCacheHandler(cacheMaxMemorySize);
+        debug == null ? void 0 : debug('setting "default" cache handler from default');
+        reference[handlersMapSymbol].set('default', handler);
+        debug == null ? void 0 : debug('setting "remote" cache handler from default');
+        reference[handlersMapSymbol].set('remote', handler);
+    }
+    // Create a set of the cache handlers.
+    reference[handlersSetSymbol] = new Set(reference[handlersMapSymbol].values());
+    return true;
+}
+/**
+ * Get a cache handler by kind.
+ * @param kind - The kind of cache handler to get.
+ * @returns The cache handler, or `undefined` if it does not exist.
+ * @throws If the cache handlers are not initialized.
+ */ export function getCacheHandler(kind) {
+    // This should never be called before initializeCacheHandlers.
+    if (!reference[handlersMapSymbol]) {
+        throw Object.defineProperty(new Error('Cache handlers not initialized'), "__NEXT_ERROR_CODE", {
+            value: "E649",
+            enumerable: false,
+            configurable: true
+        });
+    }
+    return reference[handlersMapSymbol].get(kind);
+}
+/**
+ * Get a set iterator over the cache handlers.
+ * @returns An iterator over the cache handlers, or `undefined` if they are not
+ * initialized.
+ */ export function getCacheHandlers() {
+    if (!reference[handlersSetSymbol]) {
+        return undefined;
+    }
+    return reference[handlersSetSymbol].values();
+}
+/**
+ * Get a map iterator over the cache handlers (keyed by kind).
+ * @returns An iterator over the cache handler entries, or `undefined` if they
+ * are not initialized.
+ * @throws If the cache handlers are not initialized.
+ */ export function getCacheHandlerEntries() {
+    if (!reference[handlersMapSymbol]) {
+        return undefined;
+    }
+    return reference[handlersMapSymbol].entries();
+}
+/**
+ * Set a cache handler by kind.
+ * @param kind - The kind of cache handler to set.
+ * @param cacheHandler - The cache handler to set.
+ */ export function setCacheHandler(kind, cacheHandler) {
+    // This should never be called before initializeCacheHandlers.
+    if (!reference[handlersMapSymbol] || !reference[handlersSetSymbol]) {
+        throw Object.defineProperty(new Error('Cache handlers not initialized'), "__NEXT_ERROR_CODE", {
+            value: "E649",
+            enumerable: false,
+            configurable: true
+        });
+    }
+    debug == null ? void 0 : debug('setting cache handler for "%s"', kind);
+    reference[handlersMapSymbol].set(kind, cacheHandler);
+    reference[handlersSetSymbol].add(cacheHandler);
+}
+
+//# sourceMappingURL=handlers.js.map