1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18import { Field } from '../schema';
19import { Builder } from '../builder';
20import { DataType, Struct } from '../type';
21
22/** @ignore */
23export class StructBuilder<T extends { [key: string]: DataType } = any, TNull = any> extends Builder<Struct<T>, TNull> {
24    public addChild(child: Builder, name = `${this.numChildren}`) {
25        const childIndex = this.children.push(child);
26        this.type = new Struct([...this.type.children, new Field(name, child.type, true)]);
27        return childIndex;
28    }
29}
30