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denoland-deno/ext/node/polyfills/perf_hooks.ts
Bartek Iwańczuk b40086fd7d
refactor(core): include_js_files! 'dir' option doesn't change specifiers (#18019)
This commit changes "include_js_files!" macro from "deno_core"
in a way that "dir" option doesn't cause specifiers to be rewritten 
to include it.

Example:
```
include_js_files! {
  dir "js",
  "hello.js",
}
```

The above definition required embedders to use:
`import ... from "internal:<ext_name>/js/hello.js"`. 
But with this change, the "js" directory in which the files are stored
is an implementation detail, which for embedders results in: 
`import ... from "internal:<ext_name>/hello.js"`.

The directory the files are stored in, is an implementation detail and 
in some cases might result in a significant size difference for the 
snapshot. As an example, in "deno_node" extension, we store the 
source code in "polyfills" directory; which resulted in each specifier 
to look like "internal:deno_node/polyfills/<module_name>", but with 
this change it's "internal:deno_node/<module_name>". 

Given that "deno_node" has over 100 files, many of them having 
several import specifiers to the same extension, this change removes
10 characters from each import specifier.
2023-03-05 02:31:38 +00:00

86 lines
2.5 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { notImplemented } from "internal:deno_node/_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,
};