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denoland-deno/ext/node/polyfills/perf_hooks.ts
Bartek Iwańczuk d47147fb6a
feat(ext/node): embed std/node into the snapshot (#17724)
This commit moves "deno_std/node" in "ext/node" crate. The code is
transpiled and snapshotted during the build process.

During the first pass a minimal amount of work was done to create the
snapshot, a lot of code in "ext/node" depends on presence of "Deno"
global. This code will be gradually fixed in the follow up PRs to migrate
it to import relevant APIs from "internal:" modules.

Currently the code from snapshot is not used in any way, and all
Node/npm compatibility still uses code from 
"https://deno.land/std/node" (or from the location specified by 
"DENO_NODE_COMPAT_URL"). This will also be handled in a follow 
up PRs.

---------

Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
2023-02-14 17:38:45 +01:00

86 lines
2.5 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { notImplemented } from "internal:deno_node/polyfills/_utils.ts";
import {
performance as shimPerformance,
PerformanceEntry,
} from "internal:deno_web/15_performance.js";
// FIXME(bartlomieju)
const PerformanceObserver = undefined;
const constants = {};
const performance:
& Omit<
Performance,
"clearMeasures" | "getEntries" | "getEntriesByName" | "getEntriesByType"
>
& {
// deno-lint-ignore no-explicit-any
eventLoopUtilization: any;
nodeTiming: Record<string, string>;
// deno-lint-ignore no-explicit-any
timerify: any;
// deno-lint-ignore no-explicit-any
timeOrigin: any;
} = {
clearMarks: (markName: string) => shimPerformance.clearMarks(markName),
eventLoopUtilization: () =>
notImplemented("eventLoopUtilization from performance"),
mark: (markName: string) => shimPerformance.mark(markName),
measure: (
measureName: string,
startMark?: string | PerformanceMeasureOptions,
endMark?: string,
): PerformanceMeasure => {
if (endMark) {
return shimPerformance.measure(
measureName,
startMark as string,
endMark,
);
} else {
return shimPerformance.measure(
measureName,
startMark as PerformanceMeasureOptions,
);
}
},
nodeTiming: {},
now: () => shimPerformance.now(),
timerify: () => notImplemented("timerify from performance"),
// deno-lint-ignore no-explicit-any
timeOrigin: (shimPerformance as any).timeOrigin,
// @ts-ignore waiting on update in `deno`, but currently this is
// a circular dependency
toJSON: () => shimPerformance.toJSON(),
addEventListener: (
...args: Parameters<typeof shimPerformance.addEventListener>
) => shimPerformance.addEventListener(...args),
removeEventListener: (
...args: Parameters<typeof shimPerformance.removeEventListener>
) => shimPerformance.removeEventListener(...args),
dispatchEvent: (
...args: Parameters<typeof shimPerformance.dispatchEvent>
) => shimPerformance.dispatchEvent(...args),
};
const monitorEventLoopDelay = () =>
notImplemented(
"monitorEventLoopDelay from performance",
);
export default {
performance,
PerformanceObserver,
PerformanceEntry,
monitorEventLoopDelay,
constants,
};
export {
constants,
monitorEventLoopDelay,
performance,
PerformanceEntry,
PerformanceObserver,
};