add node 20 to ci, workarounds for ts-node loader failing on node 20

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        node-version: [16.x, 18.x, 19.x]
+        node-version: [16.x, 18.x, 20.x]
         platform:
           - os: ubuntu-latest
             shell: bash

package.json

@@ -68,10 +68,10 @@
     "prettier": "^2.6.2",
     "size-limit": "^7.0.8",
     "tap": "^16.3.4",
-    "ts-node": "^10.7.0",
+    "ts-node": "^10.9.1",
     "tslib": "^2.4.0",
-    "typedoc": "^0.23.24",
-    "typescript": "^4.6.4"
+    "typedoc": "^0.24.6",
+    "typescript": "^5.0.4"
   },
   "license": "ISC",
   "files": [
@@ -95,9 +95,8 @@
     "coverage": false,
     "node-arg": [
       "--expose-gc",
-      "--no-warnings",
-      "--loader",
-      "ts-node/esm"
+      "-r",
+      "ts-node/register"
     ],
     "ts": false
   },

src/index.ts

@@ -437,8 +437,8 @@ export namespace LRUCache {
    * Options provided to {@link LRUCache#fetch} when the FC type is
    * `undefined` or `void`
    */
-  export interface FetchOptionsNoContext<K, V, FC>
-    extends FetchOptions<K, V, FC> {
+  export interface FetchOptionsNoContext<K, V>
+    extends FetchOptions<K, V, undefined> {
     context?: undefined
   }
 
@@ -1994,7 +1994,7 @@ export class LRUCache<K extends {}, V extends {}, FC = unknown> {
     fetchOptions: unknown extends FC
       ? LRUCache.FetchOptions<K, V, FC>
       : FC extends undefined | void
-      ? LRUCache.FetchOptionsNoContext<K, V, FC>
+      ? LRUCache.FetchOptionsNoContext<K, V>
       : LRUCache.FetchOptionsWithContext<K, V, FC>
   ): Promise<void | V>
   // this overload not allowed if context is required
@@ -2007,7 +2007,7 @@ export class LRUCache<K extends {}, V extends {}, FC = unknown> {
     fetchOptions?: unknown extends FC
       ? LRUCache.FetchOptions<K, V, FC>
       : FC extends undefined | void
-      ? LRUCache.FetchOptionsNoContext<K, V, FC>
+      ? LRUCache.FetchOptionsNoContext<K, V>
       : never
   ): Promise<void | V>
   async fetch(

tsconfig-base.json

@@ -1,5 +1,4 @@
 {
-  "exclude": ["./test", "./tap-snapshots"],
   "include": ["src/**/*.ts"],
   "compilerOptions": {
     "allowSyntheticDefaultImports": true,