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fix(apm): Remove Performance references #2495

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Merged
HazAT merged 3 commits into from
Mar 13, 2020
Merged

fix(apm): Remove Performance references #2495

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a162b8c
fix: Calling Performance to not require dom
HazAT Mar 13, 2020
bca2154
meta: Changelog
HazAT Mar 13, 2020
acd1d6f
ref: Type
HazAT Mar 13, 2020
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
- "You miss 100 percent of the chances you don't take. — Wayne Gretzky" — Michael Scott

- [apm] fix: Use Performance API for timings when available, including Web Workers (#2492)
- [apm] fix: Remove Performance references (#2495)

## 5.14.1

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17 changes: 14 additions & 3 deletions packages/utils/src/misc.ts
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Expand Up @@ -349,7 +349,18 @@ function _htmlElementAsString(el: unknown): string {
const INITIAL_TIME = Date.now();
let prevNow = 0;

const performanceFallback: Pick<Performance, 'now' | 'timeOrigin'> = {
/**
* Cross platform compatible partial performance implementation
*/
interface CrossPlatformPerformance {
/**
* Returns the current timestamp in ms
*/
now(): number;
timeOrigin: number;
}

const performanceFallback: CrossPlatformPerformance = {
now(): number {
let now = Date.now() - INITIAL_TIME;
if (now < prevNow) {
Expand All @@ -361,10 +372,10 @@ const performanceFallback: Pick<Performance, 'now' | 'timeOrigin'> = {
timeOrigin: INITIAL_TIME,
};

export const crossPlatformPerformance: Pick<Performance, 'now' | 'timeOrigin'> = (() => {
export const crossPlatformPerformance: CrossPlatformPerformance = (() => {
if (isNodeEnv()) {
try {
const perfHooks = dynamicRequire(module, 'perf_hooks') as { performance: Performance };
const perfHooks = dynamicRequire(module, 'perf_hooks') as { performance: CrossPlatformPerformance };
return perfHooks.performance;
} catch (_) {
return performanceFallback;
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