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Copy pathhidestackframes-throw.js
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87 lines (72 loc) · 1.74 KB
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'use strict';
const common = require('../common.js');
const assert = require('assert');
const bench = common.createBenchmark(main, {
type: [
'hide-stackframes',
'direct-call',
],
double: ['true', 'false'],
n: [1e5],
}, {
flags: ['--expose-internals'],
});
function main({ n, type, double }) {
const {
hideStackFrames,
codes: {
ERR_INVALID_ARG_TYPE,
},
} = require('internal/errors');
const value = 'err';
const testfn = (value) => {
if (typeof value !== 'number') {
throw new ERR_INVALID_ARG_TYPE('Benchmark', 'number', value);
}
};
const hideStackFramesTestfn = hideStackFrames((value) => {
if (typeof value !== 'number') {
throw new ERR_INVALID_ARG_TYPE.HideStackFrameError('Benchmark', 'number', value);
}
});
function doubleTestfn(value) {
testfn(value);
}
const doubleHideStackFramesTestfn = hideStackFrames((value) => {
hideStackFramesTestfn.withoutStackTrace(value);
});
const fn = type === 'hide-stackframe' ?
double === 'true' ?
doubleHideStackFramesTestfn :
hideStackFramesTestfn :
double === 'true' ?
doubleTestfn :
testfn;
const length = 1024;
const array = [];
let errCase = false;
// Warm up.
for (let i = 0; i < length; ++i) {
try {
fn(value);
} catch (e) {
errCase = true;
array.push(e);
}
}
bench.start();
for (let i = 0; i < n; i++) {
const index = i % length;
try {
fn(value);
} catch (e) {
array[index] = e;
}
}
bench.end(n);
// Verify the entries to prevent dead code elimination from making
// the benchmark invalid.
for (let i = 0; i < length; ++i) {
assert.strictEqual(typeof array[i], errCase ? 'object' : 'undefined');
}
}