feat!: require TypeScript 6 and respect default tsconfig values

sxzz · sxzz · commit 1c0c8f06613b · 2026-04-28T01:37:19.000+09:00
BREAKING CHANGE: TypeScript 6.0 or higher is now required.
diff --git a/package.json b/package.json
@@ -56,7 +56,7 @@
     "@ts-macro/tsc": "^0.3.6",
     "@typescript/native-preview": ">=7.0.0-dev.20260325.1",
     "rolldown": "^1.0.0-rc.12",
-    "typescript": "^5.0.0 || ^6.0.0",
+    "typescript": "^6.0.0",
     "vue-tsc": "~3.2.0"
   },
   "peerDependenciesMeta": {
@@ -81,7 +81,7 @@
     "ast-kit": "^3.0.0-beta.1",
     "birpc": "^4.0.0",
     "dts-resolver": "^2.1.3",
-    "get-tsconfig": "^4.14.0",
+    "get-tsconfig": "^5.0.0-beta.4",
     "obug": "^2.1.1",
     "picomatch": "^4.0.4"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
diff --git a/src/internal.ts b/src/internal.ts
@@ -1,2 +1,2 @@
 export * from './filename.ts'
-export { parseTsconfig } from 'get-tsconfig'
+export { readTsconfig } from 'get-tsconfig'
diff --git a/src/options.ts b/src/options.ts
@@ -2,9 +2,9 @@ import path from 'node:path'
 import process from 'node:process'
 import {
   getTsconfig,
-  parseTsconfig,
-  type TsConfigJson,
-  type TsConfigJsonResolved,
+  readTsconfig,
+  type TsconfigJson,
+  type TsconfigJsonResolved,
 } from 'get-tsconfig'
 import type { IsolatedDeclarationsOptions } from 'rolldown/experimental'
 
@@ -59,14 +59,14 @@ export interface GeneralOptions {
    *
    * @see https://www.typescriptlang.org/tsconfig
    */
-  tsconfigRaw?: Omit<TsConfigJson, 'compilerOptions'>
+  tsconfigRaw?: Omit<TsconfigJson, 'compilerOptions'>
 
   /**
    * Override the `compilerOptions` specified in `tsconfig.json`.
    *
    * @see https://www.typescriptlang.org/tsconfig/#compilerOptions
    */
-  compilerOptions?: TsConfigJson.CompilerOptions
+  compilerOptions?: TsconfigJson.CompilerOptions
 
   /**
    * If `true`, the plugin will generate declaration maps (`.d.ts.map`) for `.d.ts` files.
@@ -242,7 +242,7 @@ export type OptionsResolved = Overwrite<
     entry?: string[]
     tsconfig?: string
     oxc: IsolatedDeclarationsOptions | false
-    tsconfigRaw: TsConfigJson
+    tsconfigRaw: TsconfigJson
     tsgo: Omit<TsgoOptions, 'enabled'> | false
   }
 >
@@ -282,14 +282,14 @@ export function resolveOptions({
     tsgo = false
   }
 
-  let resolvedTsconfig: TsConfigJsonResolved | undefined
+  let resolvedTsconfig: TsconfigJsonResolved | undefined
   if (tsconfig === true || tsconfig == null) {
     const { config, path } = getTsconfig(cwd) || {}
     tsconfig = path
     resolvedTsconfig = config
   } else if (typeof tsconfig === 'string') {
     tsconfig = path.resolve(cwd || process.cwd(), tsconfig)
-    resolvedTsconfig = parseTsconfig(tsconfig)
+    resolvedTsconfig = readTsconfig(tsconfig).config
   } else {
     tsconfig = undefined
   }
diff --git a/src/tsc/types.ts b/src/tsc/types.ts
@@ -1,5 +1,5 @@
 import type { TscContext } from './context.ts'
-import type { TsConfigJson } from 'get-tsconfig'
+import type { TsconfigJson } from 'get-tsconfig'
 import type { SourceMapInput } from 'rolldown'
 import type ts from 'typescript'
 
@@ -10,7 +10,7 @@ export interface TscModule {
 
 export interface TscOptions {
   tsconfig?: string
-  tsconfigRaw: TsConfigJson
+  tsconfigRaw: TsconfigJson
   cwd: string
   build: boolean
   incremental: boolean
diff --git a/tests/fixtures/resolve-dep.ts b/tests/fixtures/resolve-dep.ts
@@ -1,2 +1,2 @@
-export { TsConfigResult } from 'get-tsconfig'
+export { TsconfigResult } from 'get-tsconfig'
 export { build } from 'rolldown'
diff --git a/tests/index.test.ts b/tests/index.test.ts
@@ -34,7 +34,7 @@ test('resolve dependencies', async () => {
     ],
     { external: ['rolldown'] },
   )
-  expect(snapshot).contain('type TsConfigResult')
+  expect(snapshot).contain('type TsconfigResult')
   expect(snapshot).not.contain('node_modules/rolldown')
 })
 

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`export * from './filename.ts'`
`2`		`-export { parseTsconfig } from 'get-tsconfig'`
	`2`	`+export { readTsconfig } from 'get-tsconfig'`
Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`		`-export { TsConfigResult } from 'get-tsconfig'`
	`1`	`+export { TsconfigResult } from 'get-tsconfig'`
`2`	`2`	`export { build } from 'rolldown'`
Original file line number	Diff line number	Diff line change
`@@ -34,7 +34,7 @@ test('resolve dependencies', async () => {`
`34`	`34`	`],`
`35`	`35`	`{ external: ['rolldown'] },`
`36`	`36`	`)`
`37`		`- expect(snapshot).contain('type TsConfigResult')`
	`37`	`+ expect(snapshot).contain('type TsconfigResult')`
`38`	`38`	`expect(snapshot).not.contain('node_modules/rolldown')`
`39`	`39`	`})`
`40`	`40`