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feat: improve overall typescript performance (#435)
Aside from general performance improvements, I added a `profile` option to be able to measure timings and compare them with other tools, like tsc. BREAKING CHANGE: 🧨 Changed default TypeScript compiler options to incremental: true and the default mode to write-tsbuildinfo
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| import { performance } from 'perf_hooks'; | ||
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|
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| interface Performance { | ||
| enable(): void; | ||
| disable(): void; | ||
| mark(name: string): void; | ||
| markStart(name: string): void; | ||
| markEnd(name: string): void; | ||
| measure(name: string, startMark?: string, endMark?: string): void; | ||
| print(): void; | ||
| } | ||
|
|
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| function createPerformance(): Performance { | ||
| let enabled = false; | ||
| let timeOrigin: number; | ||
| let marks: Map<string, number>; | ||
| let measurements: Map<string, number>; | ||
|
|
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| function enable() { | ||
| enabled = true; | ||
| marks = new Map(); | ||
| measurements = new Map(); | ||
| timeOrigin = performance.now(); | ||
| } | ||
|
|
||
| function disable() { | ||
| enabled = false; | ||
| } | ||
|
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| function mark(name: string) { | ||
| if (enabled) { | ||
| marks.set(name, performance.now()); | ||
| } | ||
| } | ||
|
|
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| function measure(name: string, startMark?: string, endMark?: string) { | ||
| if (enabled) { | ||
| const start = (startMark && marks.get(startMark)) || timeOrigin; | ||
| const end = (endMark && marks.get(endMark)) || performance.now(); | ||
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| measurements.set(name, (measurements.get(name) || 0) + (end - start)); | ||
| } | ||
| } | ||
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| function markStart(name: string) { | ||
| if (enabled) { | ||
| mark(`${name} start`); | ||
| } | ||
| } | ||
|
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| function markEnd(name: string) { | ||
| if (enabled) { | ||
| mark(`${name} end`); | ||
| measure(name, `${name} start`, `${name} end`); | ||
| } | ||
| } | ||
|
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| function formatName(name: string, width = 0) { | ||
| return `${name}:`.padEnd(width); | ||
| } | ||
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| function formatDuration(duration: number, width = 0) { | ||
| return `${(duration / 1000).toFixed(2)} s`.padStart(width); | ||
| } | ||
|
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| function print() { | ||
| if (enabled) { | ||
| let nameWidth = 0; | ||
| let durationWidth = 0; | ||
|
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| measurements.forEach((duration, name) => { | ||
| nameWidth = Math.max(nameWidth, formatName(name).length); | ||
| durationWidth = Math.max(durationWidth, formatDuration(duration).length); | ||
| }); | ||
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| measurements.forEach((duration, name) => { | ||
| console.log(`${formatName(name, nameWidth)} ${formatDuration(duration, durationWidth)}`); | ||
| }); | ||
| } | ||
| } | ||
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| return { enable, disable, mark, markStart, markEnd, measure, print }; | ||
| } | ||
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| export { Performance, createPerformance }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| import * as ts from 'typescript'; | ||
| import { Performance } from '../../profile/Performance'; | ||
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| interface TypeScriptPerformance { | ||
| enable(): void; | ||
| disable(): void; | ||
| mark(name: string): void; | ||
| measure(name: string, startMark?: string, endMark?: string): void; | ||
| } | ||
|
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| function getTypeScriptPerformance(): TypeScriptPerformance | undefined { | ||
| // eslint-disable-next-line @typescript-eslint/no-explicit-any | ||
| return (ts as any).performance; | ||
| } | ||
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| function connectTypeScriptPerformance(performance: Performance): Performance { | ||
| const typeScriptPerformance = getTypeScriptPerformance(); | ||
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|
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| if (typeScriptPerformance) { | ||
| const { mark, measure } = typeScriptPerformance; | ||
| const { enable, disable } = performance; | ||
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| typeScriptPerformance.mark = (name) => { | ||
| mark(name); | ||
| performance.mark(name); | ||
| }; | ||
| typeScriptPerformance.measure = (name, startMark, endMark) => { | ||
| measure(name, startMark, endMark); | ||
| performance.measure(name, startMark, endMark); | ||
| }; | ||
|
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| return { | ||
| ...performance, | ||
| enable() { | ||
| enable(); | ||
| typeScriptPerformance.enable(); | ||
| }, | ||
| disable() { | ||
| disable(); | ||
| typeScriptPerformance.disable(); | ||
| }, | ||
| }; | ||
| } else { | ||
| return performance; | ||
| } | ||
| } | ||
|
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| export { TypeScriptPerformance, connectTypeScriptPerformance }; |
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