Disable composite for type declarations

src/utils/get-rollup-configs.ts

@@ -39,7 +39,7 @@
 	async type(
 		options: Options,
 	) {
 		const dts = await import('rollup-plugin-dts');
 
 		return {
 			input: [] as string[],
@@ -49,6 +49,7 @@
 				resolveTypescriptMjsCts(),
 				dts.default({
 					respectExternal: true,
+					compilerOptions: { composite: false },
 				}) as Plugin,
 			],
 			output: [] as unknown as Output,
@@ -117,7 +118,7 @@
 	[T in keyof GetConfig]?: Awaited<ReturnType<GetConfig[T]>>;
 };
 
 export async function getRollupConfigs(
 	sourceDirectoryPath: string,
 	distributionDirectoryPath: string,
 	inputs: {

tests/fixture-monorepo/packages/one/src/index.ts

@@ -0,0 +1 @@
+export { Name } from './name.js';

tests/fixture-monorepo/packages/one/src/name.ts

@@ -0,0 +1,3 @@
+declare const name: unique symbol;
+
+export type Name = string & { [name]: never };

tests/fixture-monorepo/packages/one/tsconfig.json

@@ -0,0 +1,9 @@
+{
+	"compilerOptions": {
+		"jsx": "react",
+		"moduleResolution": "node",
+		"composite": true,
+		"outDir": "dist"
+	},
+	"include": ["src/index.ts"]
+}

tests/fixture-monorepo/packages/two/src/index.ts

@@ -0,0 +1,5 @@
+import { Name } from '@org/one';
+
+export function sayHello(name: Name) {
+	console.log('Hello', name);
+}

tests/fixture-monorepo/packages/two/tsconfig.json

@@ -0,0 +1,10 @@
+{
+	"compilerOptions": {
+		"jsx": "react",
+		"moduleResolution": "node",
+		"composite": true,
+		"outDir": "dist"
+	},
+	"include": ["src/index.ts"],
+	"references": [{ "path": "../one" }]
+}

tests/fixture-monorepo/tsconfig.json

@@ -0,0 +1,6 @@
+{
+	"compilerOptions": {
+		"moduleResolution": "node"
+	},
+	"resources": [{ "path": "./packages/one" }, { "path": "./packages/two" }]
+}

tests/specs/builds/output-types.ts

@@ -219,5 +219,44 @@ export default testSuite(({ describe }, nodePath: string) => {
 			const content = await fixture.readFile('dist/dts.d.ts', 'utf8');
 			expect(content).toMatch('declare const');
 		});
+
+		test('handles types in composite monorepos correctly', async ({ onTestFinish }) => {
+			const fixture = await createFixture('./tests/fixture-monorepo');
+			onTestFinish(async () => await fixture.rm());
+
+			await installTypeScript(fixture.path);
+
+			await fixture.writeJson('package.json', {
+				workspaces: ['packages/*'],
+			});
+
+			await fixture.writeJson('packages/one/package.json', {
+				name: '@org/one',
+				type: 'module',
+				exports: { types: './dist/index.d.mts' },
+			});
+
+			const pkgrollOne = await pkgroll([], { cwd: `${fixture.path}/packages/one`, nodePath });
+			expect(pkgrollOne.exitCode).toBe(0);
+			expect(pkgrollOne.stderr).toBe('');
+
+			const contentOne = await fixture.readFile('packages/one/dist/index.d.mts', 'utf8');
+			expect(contentOne).toMatch('export type { Name };');
+
+			await fixture.writeJson('packages/two/package.json', {
+				main: './dist/index.mjs',
+				type: 'module',
+				dependencies: {
+					'@org/one': 'workspace:*',
+				},
+			});
+
+			const pkgrollTwo = await pkgroll([], { cwd: `${fixture.path}/packages/two`, nodePath });
+			expect(pkgrollTwo.exitCode).toBe(0);
+			expect(pkgrollTwo.stderr).toBe('');
+
+			const contentTwo = await fixture.readFile('packages/two/dist/index.mjs', 'utf8');
+			expect(contentTwo).toMatch('export { sayHello };');
+		});
 	});
 });