chore: Update typescript and fix types

.gitignore

@@ -114,5 +114,5 @@ dist
 .yarn/build-state.yml
 .pnp.*
 
-# Type declarations
+# Dist
 /dist

lib/core-index-stream.js

@@ -30,7 +30,7 @@ const kUpdateState = Symbol('updateState')
  * @extends {Readable<Entry<T>, Entry<T>, Entry<T>, true, false, Omit<import('./types').IndexStreamEvents<Entry<T>>, 'index-state'>>}
  */
 class CoreIndexStream extends Readable {
-  /** @type {Bitfield} */
+  /** @type {Bitfield | undefined} */
   #bitfield
   #core
   #storage
@@ -100,7 +100,7 @@ class CoreIndexStream extends Readable {
   async [kDestroyPromise]() {
     this.#core.removeListener('append', this[kHandleAppend])
     this.#core.removeListener('download', this[kHandleDownload])
-    await this.#bitfield.flush()
+    await this.#bitfield?.flush()
   }
 
   async [kOpenPromise]() {
@@ -141,7 +141,7 @@ class CoreIndexStream extends Readable {
       // If nothing was pushed, queue up another read
       await this[kReadPromise]()
     }
-    await this.#bitfield.flush()
+    await this.#bitfield?.flush()
   }
 
   /**
@@ -151,11 +151,11 @@ class CoreIndexStream extends Readable {
    * @returns {Promise<boolean>}
    */
   async [kPushEntry](index) {
-    const isIndexed = this.#bitfield.get(index)
+    const isIndexed = this.#bitfield?.get(index)
     if (isIndexed) return false
     const block = await this.#core.get(index, { wait: false })
     if (block === null) return false
-    this.#bitfield.set(index, true)
+    this.#bitfield?.set(index, true)
     const entry = { key: this.#core.key, block, index }
     this.#readBufferAvailable = this.push(entry)
     return true

lib/multi-core-index-stream.js

@@ -29,8 +29,6 @@ class MultiCoreIndexStream extends Readable {
   /** @type {Set<CoreIndexStream<T>>} */
   #readable = new Set()
   #pending = pDefer()
-  /** @type {ReturnType<typeof setTimeout>} */
-  #timeoutId
   #destroying = false
   /** @type {import('./types').IndexStateCurrent} */
   #state = 'idle'