chore: refactor reference.ts to one class per file

dev/src/bundle.ts

@@ -15,7 +15,7 @@
 import {firestore, google} from '../protos/firestore_v1_proto_api';
 
 import {DocumentSnapshot} from './document';
-import {QuerySnapshot} from './reference';
+import {QuerySnapshot} from './reference/query-snapshot';
 import {Timestamp} from './timestamp';
 import {
   invalidArgumentMessage,

dev/src/collection-group.ts

@@ -20,7 +20,8 @@ import * as protos from '../protos/firestore_v1_proto_api';
 import {QueryPartition} from './query-partition';
 import {requestTag} from './util';
 import {logger} from './logger';
-import {Query, QueryOptions} from './reference';
+import {Query} from './reference/query';
+import {QueryOptions} from './reference/query-options';
 import {FieldPath} from './path';
 import {Firestore} from './index';
 import {validateInteger} from './validate';

dev/src/document-reader.ts

@@ -15,7 +15,7 @@
  */
 
 import {DocumentSnapshot, DocumentSnapshotBuilder} from './document';
-import {DocumentReference} from './reference';
+import {DocumentReference} from './reference/document-reference';
 import {FieldPath} from './path';
 import {isPermanentRpcError} from './util';
 import {google} from '../protos/firestore_v1_proto_api';

dev/src/document.ts

@@ -23,7 +23,7 @@ import * as assert from 'assert';
 import {google} from '../protos/firestore_v1_proto_api';
 import {FieldTransform} from './field-value';
 import {FieldPath, validateFieldPath} from './path';
-import {DocumentReference} from './reference';
+import {DocumentReference} from './reference/document-reference';
 import {Serializer} from './serializer';
 import {Timestamp} from './timestamp';
 import {ApiMapValue, defaultConverter, UpdateMap} from './types';

dev/src/index.ts

@@ -42,7 +42,8 @@ import {
   validateResourcePath,
 } from './path';
 import {ClientPool} from './pool';
-import {CollectionReference, DocumentReference} from './reference';
+import {CollectionReference} from './reference/collection-reference';
+import {DocumentReference} from './reference/document-reference';
 import {Serializer} from './serializer';
 import {Timestamp} from './timestamp';
 import {parseGetAllArguments, Transaction} from './transaction';
@@ -85,18 +86,14 @@ import {
   RecursiveDelete,
 } from './recursive-delete';
 
-export {
-  CollectionReference,
-  DocumentReference,
-  QuerySnapshot,
-  Query,
-} from './reference';
-export type {
-  AggregateQuery,
-  AggregateQuerySnapshot,
-  VectorQuery,
-  VectorQuerySnapshot,
-} from './reference';
+export {CollectionReference} from './reference/collection-reference';
+export {DocumentReference} from './reference/document-reference';
+export {QuerySnapshot} from './reference/query-snapshot';
+export {Query} from './reference/query';
+export type {AggregateQuery} from './reference/aggregate-query';
+export type {AggregateQuerySnapshot} from './reference/aggregate-query-snapshot';
+export type {VectorQuery} from './reference/vector-query';
+export type {VectorQuerySnapshot} from './reference/vector-query-snapshot';
 export {BulkWriter} from './bulk-writer';
 export type {BulkWriterError} from './bulk-writer';
 export type {BundleBuilder} from './bundle';

dev/src/query-partition.ts

@@ -17,7 +17,9 @@
 import * as firestore from '@google-cloud/firestore';
 import * as protos from '../protos/firestore_v1_proto_api';
 
-import {FieldOrder, Query, QueryOptions} from './reference';
+import {FieldOrder} from './reference/field-order';
+import {Query} from './reference/query';
+import {QueryOptions} from './reference/query-options';
 import {FieldPath} from './path';
 import {Serializer} from './serializer';
 import {Firestore} from './index';

dev/src/recursive-delete.ts

@@ -28,7 +28,7 @@ import Firestore, {
 import {Deferred, wrapError} from './util';
 import type {GoogleError} from 'google-gax';
 import {BulkWriterError} from './bulk-writer';
-import {QueryOptions} from './reference';
+import {QueryOptions} from './reference/query-options';
 import {StatusCode} from './status-code';
 
 /*!