1/* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17import {AbsoluteFrameIndex} from './index_types'; 18import {Timestamp} from './timestamp'; 19import {TraceEntry} from './trace'; 20 21export class TracePosition { 22 static fromTimestamp(timestamp: Timestamp): TracePosition { 23 return new TracePosition(timestamp); 24 } 25 26 static fromTraceEntry(entry: TraceEntry<{}>): TracePosition { 27 let frame: AbsoluteFrameIndex | undefined; 28 if (entry.getFullTrace().hasFrameInfo()) { 29 const frames = entry.getFramesRange(); 30 frame = frames && frames.start < frames.end ? frames.start : undefined; 31 } 32 return new TracePosition(entry.getTimestamp(), frame, entry); 33 } 34 35 isEqual(other: TracePosition): boolean { 36 return ( 37 this.timestamp.getValueNs() === other.timestamp.getValueNs() && 38 this.frame === other.frame && 39 this.entry?.getFullTrace().type === other.entry?.getFullTrace().type && 40 this.entry?.getIndex() === other.entry?.getIndex() 41 ); 42 } 43 44 private constructor( 45 readonly timestamp: Timestamp, 46 readonly frame?: AbsoluteFrameIndex, 47 readonly entry?: TraceEntry<{}> 48 ) {} 49} 50