feat(ext/cache_storage): cache storage

examples/cache_storage.ts

@@ -0,0 +1,45 @@
+const cache = await caches.open("test-cache-simple");
+console.log("✓ Opened cache successfully");
+
+const hasCache = await caches.has("test-cache-simple");
+console.log("✓ Cache exists:", hasCache);
+
+await cache.add("https://api.example.com/simple");
+console.log("✓ Added URL to cache: https://api.example.com/simple");
+const matchResult = await cache.match("https://api.example.com/simple");
+console.log("✓ Cache match result:", matchResult !== undefined);
+console.log("  Match type:", typeof matchResult);
+console.log("  Match value:", matchResult);
+
+await cache.add("https://api.example.com/data1");
+await cache.add("https://api.example.com/data2");
+await cache.add("https://api.example.com/data3");
+
+const match1 = await cache.match("https://api.example.com/data1");
+const match2 = await cache.match("https://api.example.com/data2");
+const match3 = await cache.match("https://api.example.com/data3");
+const nonMatch = await cache.match("https://api.example.com/nonexistent");
+
+console.log("✓ Match data1:", match1 !== undefined);
+console.log("✓ Match data2:", match2 !== undefined);
+console.log("✓ Match data3:", match3 !== undefined);
+console.log("✓ Non-existent match:", nonMatch === undefined);
+
+const keys = await cache.keys();
+console.log(
+    "✓ Cache keys count:",
+    Array.isArray(keys) ? keys.length : "not an array",
+);
+console.log("  Keys type:", typeof keys);
+const deleted = await cache.delete("https://api.example.com/data1");
+console.log("✓ Delete result:", deleted);
+
+const deletedMatch = await cache.match("https://api.example.com/data1");
+console.log("✓ Deleted URL no longer matches:", deletedMatch === undefined);
+await caches.open("another-cache");
+const cacheNames = await caches.keys();
+console.log("✓ Cache names:", cacheNames);
+const deletedCache = await caches.delete("test-cache-simple");
+const deletedAnother = await caches.delete("another-cache");
+console.log("✓ Deleted test-cache-simple:", deletedCache);
+console.log("✓ Deleted another-cache:", deletedAnother);

runtime/Cargo.toml

@@ -21,6 +21,7 @@ tokio.workspace = true
 oxc-miette.workspace = true
 oxc_diagnostics.workspace = true
 serde.workspace = true
+serde_json.workspace = true
 url.workspace = true
 base64-simd.workspace = true
 image = { workspace = true, optional = true }

runtime/src/ext/cache_storage/cache_storage.ts

@@ -0,0 +1,161 @@
+// deno-lint-ignore-file no-explicit-any
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+/**
+ * Implementation of the Cache and CacheStorage APIs for Andromeda
+ * Based on: https://developer.mozilla.org/en-US/docs/Web/API/CacheStorage
+ * Spec: https://w3c.github.io/ServiceWorker/#cache-interface
+ *
+ * Note: This is a simplified implementation that wraps the native sync functions
+ * in promises to maintain compatibility with the Web API specification.
+ */
+
+type RequestInfo = Request | string | URL;
+
+interface CacheQueryOptions {
+  ignoreSearch?: boolean;
+  ignoreMethod?: boolean;
+  ignoreVary?: boolean;
+}
+
+class Cache {
+  #cacheName: string;
+
+  constructor(cacheName: string) {
+    this.#cacheName = cacheName;
+  }
+
+  /**
+   * Returns a Promise that resolves to the response associated with the first matching request in the Cache object.
+   */
+  match(
+    request: RequestInfo,
+    options?: CacheQueryOptions,
+  ): Promise<Response | undefined> {
+    return Promise.resolve(
+      cache_match(this.#cacheName, request as any, options),
+    );
+  }
+
+  /**
+   * Returns a Promise that resolves to an array of all matching responses in the Cache object.
+   */
+  matchAll(
+    request?: RequestInfo,
+    options?: CacheQueryOptions,
+  ): Promise<Response[]> {
+    return Promise.resolve(
+      cache_matchAll(this.#cacheName, request as any, options),
+    );
+  }
+
+  /**
+   * Takes a URL, retrieves it and adds the resulting response object to the given cache.
+   */
+  add(request: RequestInfo): Promise<void> {
+    return Promise.resolve(cache_add(this.#cacheName, request as any));
+  }
+
+  /**
+   * Takes an array of URLs, retrieves them, and adds the resulting response objects to the given cache.
+   */
+  addAll(requests: RequestInfo[]): Promise<void> {
+    return Promise.resolve(cache_addAll(this.#cacheName, requests as any));
+  }
+
+  /**
+   * Takes both a request and its response and adds it to the given cache.
+   */
+  put(request: RequestInfo, response: Response): Promise<void> {
+    // Clone the response to ensure it can be consumed
+    const responseClone = response.clone();
+    return Promise.resolve(
+      cache_put(this.#cacheName, request as any, responseClone),
+    );
+  }
+
+  /**
+   * Finds the Cache entry whose key is the request, and if found, deletes the Cache entry and returns a Promise that resolves to true.
+   */
+  delete(
+    request: RequestInfo,
+    options?: CacheQueryOptions,
+  ): Promise<boolean> {
+    return Promise.resolve(
+      cache_delete(this.#cacheName, request as any, options),
+    );
+  }
+
+  /**
+   * Returns a Promise that resolves to an array of Cache keys.
+   */
+  keys(
+    request?: RequestInfo,
+    options?: CacheQueryOptions,
+  ): Promise<Request[]> {
+    return Promise.resolve(
+      cache_keys(this.#cacheName, request as any, options),
+    );
+  }
+}
+
+class CacheStorage {
+  /**
+   * Returns a Promise that resolves to the Cache object matching the cacheName.
+   */
+  open(cacheName: string): Promise<Cache> {
+    // Call the sync function
+    cacheStorage_open(cacheName);
+    return Promise.resolve(new Cache(cacheName));
+  }
+
+  /**
+   * Returns a Promise that resolves to true if a Cache object matching the cacheName exists.
+   */
+  has(cacheName: string): Promise<boolean> {
+    return Promise.resolve(cacheStorage_has(cacheName));
+  }
+
+  /**
+   * Finds the Cache object matching the cacheName, and if found, deletes the Cache object and returns a Promise that resolves to true.
+   */
+  delete(cacheName: string): Promise<boolean> {
+    return Promise.resolve(cacheStorage_delete(cacheName));
+  }
+
+  /**
+   * Returns a Promise that will resolve with an array containing strings corresponding to all of the named Cache objects.
+   */
+  keys(): Promise<string[]> {
+    return Promise.resolve(cacheStorage_keys());
+  }
+
+  /**
+   * Checks if a given Request is a key in any of the Cache objects that the CacheStorage object tracks.
+   */
+  match(
+    request: RequestInfo,
+    options?: CacheQueryOptions,
+  ): Promise<Response | undefined> {
+    return Promise.resolve(cacheStorage_match(request as any, options));
+  }
+}
+
+// Create global CacheStorage instance
+let cacheStorageInstance: CacheStorage | undefined;
+
+function getCacheStorage(): CacheStorage {
+  if (!cacheStorageInstance) {
+    cacheStorageInstance = new CacheStorage();
+  }
+  return cacheStorageInstance;
+}
+
+// Define the global 'caches' property
+Object.defineProperty(globalThis, "caches", {
+  get: () => getCacheStorage(),
+  configurable: true,
+  enumerable: true,
+});