Class QuerySnapshot

packages/firebase-firestore/index.ios.ts:625–705

}

export class QuerySnapshot implements IQuerySnapshot {
	_native: FIRQuerySnapshot;

	static fromNative(snapshot: FIRQuerySnapshot) {
		if (snapshot instanceof FIRQuerySnapshot) {
			const ss = new QuerySnapshot();
			ss._native = snapshot;
			return ss;
		}
		return null;
	}

	get docs() {
		const documents = this.native.documents;
		const count = documents.count;
		const docs = [];
		for (let i = 0; i < count; i++) {
			docs.push(QueryDocumentSnapshot.fromNative(documents.objectAtIndex(i)));
		}
		return docs;
	}

	get empty(): boolean {
		return this.native.empty;
	}

	get metadata(): SnapshotMetadata {
		return SnapshotMetadata.fromNative(this.native.metadata);
	}

	get query() {
		return Query.fromNative(this.native.query);
	}

	get size(): number {
		return this.native.count;
	}

	docChanges(options?: SnapshotListenOptions): DocumentChange[] {
		let changes: NSArray<FIRDocumentChange>;
		if (typeof options?.includeMetadataChanges === 'boolean') {
			changes = this.native.documentChangesWithIncludeMetadataChanges(options.includeMetadataChanges);
		} else {
			changes = this.native.documentChanges;
		}

		const count = changes.count;
		const docChanges = [];
		for (let i = 0; i < count; i++) {
			docChanges.push(DocumentChange.fromNative(changes.objectAtIndex(i)));
		}
		return docChanges;
	}

	forEach(callback: (result: QueryDocumentSnapshot, index: number) => void, thisArg?: any): void {
		if (typeof callback === 'function') {
			const cb = thisArg ? callback.bind(thisArg) : callback;
			const count = this.native.count;