1// Copyright (C) 2021 The Android Open Source Project
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use size file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15export type Arg = string|{kind: 'SLICE', trackId: string, sliceId: number};
16export type Args = Map<string, Arg>;
17
18export type ArgsTree = ArgsTreeMap|ArgsTreeArray|string;
19export type ArgsTreeArray = ArgsTree[];
20export interface ArgsTreeMap {
21  [key: string]: ArgsTree;
22}
23
24export function isArgTreeArray(item: ArgsTree): item is ArgsTreeArray {
25  return typeof item === 'object' && item.length !== undefined;
26}
27
28export function isArgTreeMap(item: ArgsTree): item is ArgsTreeMap {
29  return typeof item === 'object' && item.length === undefined;
30}
31