Skip to content

perf: use tsconfig cache for oxc transform in dev #21643

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
sapphi-red merged 1 commit into from
Feb 16, 2026
Merged

perf: use tsconfig cache for oxc transform in dev #21643

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 3 additions & 1 deletion packages/vite/src/node/plugins/esbuild.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -523,7 +523,9 @@ function prettifyMessage(m: EsbuildMessage, code: string): string {
let globalTSConfigResolutionCache: TsconfigCache | undefined
const tsconfigResolutionCacheMap = new WeakMap<ResolvedConfig, TsconfigCache>()

function getTSConfigResolutionCache(config?: ResolvedConfig) {
export function getTSConfigResolutionCache(
config?: ResolvedConfig,
): TsconfigCache {
if (!config) {
return (globalTSConfigResolutionCache ??= new TsconfigCache())
}
Expand Down
18 changes: 15 additions & 3 deletions packages/vite/src/node/plugins/oxc.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ import { type Environment, perEnvironmentPlugin } from '..'
import type { ViteDevServer } from '../server'
import { JS_TYPES_RE, VITE_PACKAGE_DIR } from '../constants'
import type { Logger } from '../logger'
import type { ESBuildOptions } from './esbuild'
import { type ESBuildOptions, getTSConfigResolutionCache } from './esbuild'

// IIFE content looks like `var MyLib = (function() {` or `this.nested.myLib = (function() {`.
export const IIFE_BEGIN_RE: RegExp =
Expand All @@ -31,7 +31,14 @@ const validExtensionRE = /\.\w+$/

export interface OxcOptions extends Omit<
OxcTransformOptions,
'cwd' | 'sourceType' | 'lang' | 'sourcemap' | 'helpers'
| 'cwd'
| 'sourceType'
| 'lang'
| 'sourcemap'
| 'helpers'
| 'inject'
| 'tsconfig'
| 'inputMap'
> {
include?: string | RegExp | ReadonlyArray<string | RegExp>
exclude?: string | RegExp | ReadonlyArray<string | RegExp>
Expand Down Expand Up @@ -143,7 +150,12 @@ export async function transformWithOxc(
lang,
}

const result = transformSync(filename, code, resolvedOptions)
const result = transformSync(
filename,
code,
resolvedOptions,
getTSConfigResolutionCache(config),
)
if (
watcher &&
config &&
Expand Down