Files
xterm.js/test/benchmark/Event.benchmark.ts
T
Daniel ImmsandCursor 17ad33dc3d Remove TypeScript path mappings in favor of relative imports
Fixes https://github.com/xtermjs/xterm.js/issues/5896

TypeScript path mappings for common/*, browser/*, and headless/*
were not rewritten in emitted JavaScript, which forced webpack resolve
aliases and NODE_PATH workarounds so runtime could resolve modules.
That added build complexity and broke tooling such as ESLint import/no-cycle.

Changes:
- Convert ~750 imports across src/, addons/, and test/ to relative paths
- Remove common/browser/headless paths and src catch-all mappings from tsconfigs
  (keep @xterm/addon-* demo and addon typings paths)
- Remove webpack resolve.alias for common, browser, headless, and vs
- Drop NODE_PATH from unit tests, benchmarks, and VS Code launch config
- Fix addon-image IIPImageStorage to import ./Types after removing catch-all *

Verified: npm run build, esbuild, package, package-headless
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-31 09:16:10 -07:00

73 lines
1.9 KiB
TypeScript

/**
* Copyright (c) 2026 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { perfContext, before, RuntimeCase } from 'xterm-benchmark';
import { Emitter } from '../../src/common/Event';
const ITERATIONS = 1_000_000;
perfContext('Emitter.fire()', () => {
perfContext('0 listeners', () => {
let emitter: Emitter<number>;
before(() => {
emitter = new Emitter<number>();
});
new RuntimeCase('', () => {
for (let i = 0; i < ITERATIONS; i++) {
emitter.fire(i);
}
return { payloadSize: ITERATIONS };
}, { fork: false }).showAverageRuntime();
});
perfContext('1 listener', () => {
let emitter: Emitter<number>;
let sum = 0;
before(() => {
emitter = new Emitter<number>();
emitter.event(e => { sum += e; });
});
new RuntimeCase('', () => {
for (let i = 0; i < ITERATIONS; i++) {
emitter.fire(i);
}
return { payloadSize: ITERATIONS, sum };
}, { fork: false }).showAverageRuntime();
});
perfContext('2 listeners', () => {
let emitter: Emitter<number>;
let sum = 0;
before(() => {
emitter = new Emitter<number>();
emitter.event(e => { sum += e; });
emitter.event(e => { sum += e * 2; });
});
new RuntimeCase('', () => {
for (let i = 0; i < ITERATIONS; i++) {
emitter.fire(i);
}
return { payloadSize: ITERATIONS, sum };
}, { fork: false }).showAverageRuntime();
});
perfContext('5 listeners', () => {
let emitter: Emitter<number>;
let sum = 0;
before(() => {
emitter = new Emitter<number>();
for (let j = 0; j < 5; j++) {
emitter.event(e => { sum += e; });
}
});
new RuntimeCase('', () => {
for (let i = 0; i < ITERATIONS; i++) {
emitter.fire(i);
}
return { payloadSize: ITERATIONS, sum };
}, { fork: false }).showAverageRuntime();
});
});