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GeezerVison is showing github.com — errors: eliminate all overhead for hidden calls · nodejs/node@c844d22

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benchmark/misc
- hidestackframes.js
lib/internal
- errors.js
- fs
  - promises.js

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`‎benchmark/misc/hidestackframes.js‎`

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+45Lines changed: 45 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,45 @@`
	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+const common = require('../common.js');`
	`4`	`+`
	`5`	`+const bench = common.createBenchmark(main, {`
	`6`	`+ type: ['hide-stackframes-throw', 'direct-call-throw',`
	`7`	`+ 'hide-stackframes-noerr', 'direct-call-noerr'],`
	`8`	`+ n: [10e4]`
	`9`	`+}, {`
	`10`	`+ flags: ['--expose-internals']`
	`11`	`+});`
	`12`	`+`
	`13`	`+function main({ n, type }) {`
	`14`	`+ const {`
	`15`	`+ hideStackFrames,`
	`16`	`+ codes: {`
	`17`	`+ ERR_INVALID_ARG_TYPE,`
	`18`	`+ },`
	`19`	`+ } = require('internal/errors');`
	`20`	`+`
	`21`	`+ const testfn = (value) => {`
	`22`	`+ if (typeof value !== 'number') {`
	`23`	`+ throw new ERR_INVALID_ARG_TYPE('Benchmark', 'number', value);`
	`24`	`+ }`
	`25`	`+ };`
	`26`	`+`
	`27`	`+ let fn = testfn;`
	`28`	`+ if (type.startsWith('hide-stackframe'))`
	`29`	`+ fn = hideStackFrames(testfn);`
	`30`	`+ let value = 42;`
	`31`	`+ if (type.endsWith('-throw'))`
	`32`	`+ value = 'err';`
	`33`	`+`
	`34`	`+ bench.start();`
	`35`	`+`
	`36`	`+ for (let i = 0; i < n; i++) {`
	`37`	`+ try {`
	`38`	`+ fn(value);`
	`39`	`+ } catch {`
	`40`	`+ // No-op`
	`41`	`+ }`
	`42`	`+ }`
	`43`	`+`
	`44`	`+ bench.end(n);`
	`45`	`+}`

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