fix: Jsii projects don't have tsconfig.json

Jsii generates tsconfig.json

src/turbo.ts

@@ -4,6 +4,7 @@ import {
   typescript,
   Project,
   javascript,
+  cdk,
   JsonFile,
   YamlFile,
   JsonPatch,
@@ -355,9 +356,13 @@ export class TurborepoProject extends typescript.TypeScriptProject {
           .filter(({ name }) => packageNames.includes(name))
           .map(({ name }) => packageNameSubProjectMap[name]);
 
-        const references = depProjects
-          .map(({ outdir }) => path.relative(subProject.outdir, outdir))
-          .map((p) => ({ path: p }));
+        const references = [];
+        for (const depProject of depProjects) {
+          let relPath = path.relative(subProject.outdir, depProject.outdir);
+          if (ProjectUtils.isNamedInstanceOf(depProject, cdk.JsiiProject))
+            relPath = path.join(relPath, "tsconfig.dev.json");
+          references.push({ path: relPath });
+        }
 
         const pathMappings: Record<string, string> = {};
         for (const depProject of depProjects) {

test/sub-projects.test.ts

@@ -2,7 +2,7 @@ import { javascript } from "projen";
 import {
   synthProjectSnapshot,
   createSubProject,
-  createJSIISubProject,
+  createJSIISubProject as createJsiiSubProject,
   createProject,
   parseYaml,
 } from "./util";
@@ -91,7 +91,7 @@ describe("TurborepoProject", () => {
       outdir: subProjectBarDir,
     });
     const subProjectFooDir = "packages/foo";
-    const subProjectFoo = createJSIISubProject({
+    const subProjectFoo = createJsiiSubProject({
       parent: project,
       outdir: subProjectFooDir,
       deps: [subProjectBar.package.packageName],
@@ -147,6 +147,35 @@ describe("TurborepoProject", () => {
     ]);
   });
 
+  it("should add JsiiProject references when turned on", () => {
+    expect.assertions(1);
+
+    const project = createProject({
+      projectReferences: true,
+    });
+
+    const subProjectBarDir = "packages/bar";
+    const subProjectBar = createJsiiSubProject({
+      parent: project,
+      outdir: subProjectBarDir,
+    });
+
+    const subProjectBazDir = "packages/baz";
+    createSubProject({
+      parent: project,
+      outdir: subProjectBazDir,
+      deps: [subProjectBar.package.packageName],
+    });
+
+    const synth = synthProjectSnapshot(project);
+
+    expect(synth["packages/baz/tsconfig.json"].references).toStrictEqual([
+      {
+        path: "../bar/tsconfig.dev.json", // JSII projects only have tsconfig.json
+      },
+    ]);
+  });
+
   it("should add moduleNameMapper for jest", () => {
     expect.assertions(1);