/opt/canhelp/node_modules/next/dist/esm/server/use-cache
Edit: /opt/canhelp/node_modules/next/dist/esm/server/use-cache/handlers.js (4748B)
import DefaultCacheHandler from '../lib/cache-handlers/default.external';
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.
* @returns `true` if the cache handlers were initialized, `false` if they were already initialized.
*/ export function initializeCacheHandlers() {
// 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 = DefaultCacheHandler;
}
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 {
debug == null ? void 0 : debug('setting "default" cache handler from default');
reference[handlersMapSymbol].set('default', DefaultCacheHandler);
debug == null ? void 0 : debug('setting "remote" cache handler from default');
reference[handlersMapSymbol].set('remote', DefaultCacheHandler);
}
// 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);
}
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