No need to expose snapshot.db

Author: vweevers

README.md

@@ -723,10 +723,6 @@ Free up underlying resources. Be sure to call this when the snapshot is no longe
 
 After `snapshot.close()` has been called, no further operations are allowed. For example, `db.get(key, { snapshot })` will throw an error with code [`LEVEL_SNAPSHOT_NOT_OPEN`](#level_snapshot_not_open).
 
-#### `snapshot.db`
-
-A reference to the database that created this snapshot. This refers to the [root database](#subleveldb) when the snapshot was created via a sublevel (which plays no role in snapshots).
-
 ### Encodings
 
 Any database method that takes a `key` argument, `value` argument or range options like `gte`, hereby jointly referred to as `data`, runs that `data` through an _encoding_. This means to encode input `data` and decode output `data`.
@@ -1774,7 +1770,7 @@ The default `_close()` returns a resolved promise. Overriding is optional.
 
 ### `snapshot = new AbstractSnapshot(db)`
 
-The first argument to this constructor must be an instance of the relevant `AbstractLevel` implementation. The constructor will set `snapshot.db` which ensures that `db` will not be garbage collected in case there are no other references to it.
+The first argument to this constructor must be an instance of the relevant `AbstractLevel` implementation.
 
 #### `snapshot._close()`
 

abstract-snapshot.js

@@ -16,14 +16,11 @@ class AbstractSnapshot {
       throw new TypeError(`The first argument must be an abstract-level database, received ${hint}`)
     }
 
+    // Also ensures db will not be garbage collected yet
     this.#root = db
     this.#root.attachResource(this)
   }
 
-  get db () {
-    return this.#root
-  }
-
   ref () {
     if (!this.#open) {
       throw new ModuleError('Snapshot is not open: cannot use snapshot after close()', {

types/abstract-level.d.ts

@@ -242,7 +242,7 @@ declare class AbstractLevel<TFormat, KDefault = string, VDefault = string>
    *
    * Don't forget to call `snapshot.close()` when done.
    */
-  snapshot (): AbstractSnapshot<typeof this>
+  snapshot (): AbstractSnapshot
 
   /**
    * Call the function {@link fn} at a later time when {@link status} changes to

types/abstract-snapshot.d.ts

@@ -1,15 +1,8 @@
 /**
  * A lightweight token that represents a version of a database at a particular point in
  * time.
- *
- * @template TDatabase Type of the database that created this snapshot.
  */
-export class AbstractSnapshot<TDatabase> {
-  /**
-   * A reference to the database that created this snapshot.
-   */
-  db: TDatabase
-
+export class AbstractSnapshot {
   /**
    * Increment reference count, to register work that should delay closing until
    * {@link unref} is called an equal amount of times. The promise that will be returned