Vihren Atlas

performance.ts ×6

Code frontier

unlabeled · c_c05fa909a67d

2907 tests · 3433 LOC · 19 files · introduces 0 tests · 84 LOC · 1 file

Introduces — evidence that enters the hierarchy at this concept

Code
6 ranges84 lines · 1 files
Tests
0 tests

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All code (extent)
475 ranges3433 lines · 19 files · Browse complete extent
All tests (intent)
2907 testsBrowse complete intent

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Introduced tests

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Introduced code

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1 file ranked by introduced lines: 84 introduced LOC across 6 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

src/vs/base/common/performance.ts 84 introduced LOC · 6 ranges

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1 > /*--------------------------------------------------------------------------------------------- performance.ts
2 > * Copyright (c) Microsoft Corporation. All rights reserved.
3 > * Licensed under the MIT License. See License.txt in the project root for license information.
4 > *--------------------------------------------------------------------------------------------*/
5 >
6 > import type { INodeProcess } from './platform.js';
7 >
8 > function _definePolyfillMarks(timeOrigin?: number) {
9 > const _data: [string?, number?] = [];
10 > if (typeof timeOrigin === 'number') {
11 > _data.push('code/timeOrigin', timeOrigin);
12 > }
13 >
14 > function mark(name: string, markOptions?: { startTime?: number }) {
15 _data.push(name, markOptions?.startTime ?? Date.now());
16 }
17 > function getMarks() { performance.ts
18 const result = [];
19 for (let i = 0; i < _data.length; i += 2) {
25 return result;
26 }
27 > function clearMarks(name?: string) { performance.ts
28 if (typeof name === 'undefined') {
29 const hasTimeOrigin = _data.length >= 2 && _data[0] === 'code/timeOrigin';
41 }
42 }
43 > return { mark, getMarks, clearMarks }; performance.ts
44 > }
45 >
46 > declare const process: INodeProcess;
47 >
48 > interface IPerformanceEntry {
49 > readonly name: string;
50 > readonly startTime: number;
51 > }
52 >
53 > interface IPerformanceTiming {
54 > readonly navigationStart?: number;
55 > readonly redirectStart?: number;
56 > readonly fetchStart?: number;
57 > }
58 >
59 > interface IPerformance {
60 > mark(name: string, markOptions?: { startTime?: number }): void;
61 > clearMarks(name?: string): void;
62 > getEntriesByType(type: string): IPerformanceEntry[];
63 > readonly timeOrigin: number;
64 > readonly timing: IPerformanceTiming;
65 > readonly nodeTiming?: any;
66 > }
67 >
68 > declare const performance: IPerformance;
69 >
70 > function _define() {
71 >
72 > // Identify browser environment when following property is not present
73 > // https://nodejs.org/dist/latest-v16.x/docs/api/perf_hooks.html#performancenodetiming
74 > // @ts-ignore
75 > if (typeof performance === 'object' && typeof performance.mark === 'function' && !performance.nodeTiming) {
76 // in a browser context, reuse performance-util
77
109 }
110
111 > } else if (typeof process === 'object') { performance.ts
112 > // node.js: use the normal polyfill but add the timeOrigin
113 > // from the node perf_hooks API as very first mark
114 > const timeOrigin = performance?.timeOrigin;
115 > return _definePolyfillMarks(timeOrigin);
116 >
117 > } else {
118 // unknown environment
119 console.trace('perf-util loaded in UNKNOWN environment');
120 return _definePolyfillMarks();
121 }
122 > } performance.ts
123 >
124 > function _factory(sharedObj: any) {
125 > if (!sharedObj.MonacoPerformanceMarks) {
126 > sharedObj.MonacoPerformanceMarks = _define();
127 > }
128 > return sharedObj.MonacoPerformanceMarks;
129 > }
130 >
131 > const perf = _factory(globalThis);
132 >
133 > export const mark: (name: string, markOptions?: { startTime?: number }) => void = perf.mark;
134 >
135 > /**
136 > * Clears performance marks. If a name is given, only marks with that exact
137 > * name are removed. If no name is given, all marks are removed.
138 > */
139 > export const clearMarks: (name?: string) => void = perf.clearMarks;
140 >
141 > export interface PerformanceMark {
142 > readonly name: string;
143 > readonly startTime: number;
144 > }
145 >
146 > /**
147 > * Returns all marks, sorted by `startTime`.
148 > */
149 > export const getMarks: () => PerformanceMark[] = perf.getMarks;

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