1// Copyright (C) 2019 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this 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 Column = (StringColumn|TimestampColumn|NumberColumn|StateColumn)& 16 {title: string, columnId: string}; 17 18export interface StringColumn { 19 kind: 'STRING'; 20 data: Uint16Array; 21} 22 23export interface TimestampColumn { 24 kind: 'TIMESTAMP_NS'; 25 data: Float64Array; 26} 27 28export interface NumberColumn { 29 kind: 'NUMBER'; 30 data: Uint16Array; 31} 32 33export interface StateColumn { 34 kind: 'STATE'; 35 data: Uint16Array; 36} 37 38type TypedArrayConstructor = Uint16ArrayConstructor|Float64ArrayConstructor; 39export interface ColumnDef { 40 title: string; 41 kind: string; 42 columnConstructor: TypedArrayConstructor; 43 columnId: string; 44} 45 46export interface AggregateData { 47 tabName: string; 48 columns: Column[]; 49 // For string interning. 50 strings: string[]; 51}