Simple example to demonstrate ts-loader config issues

.gitignore

@@ -0,0 +1,3 @@
+node_modules
+dist
+tsconfig.tsbuildinfo

a/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "a",
+  "version": "1.0.0",
+  "main": "dist/index.js",
+  "license": "MIT",
+  "dependencies": {
+    "b": "1.0.0"
+  },
+  "devDependencies": {
+    "ts-loader": "^7.0.4",
+    "typescript": "^3.9.3",
+    "webpack": "^4.43.0",
+    "webpack-cli": "^3.3.11"
+  },
+  "scripts": {
+    "build": "webpack"
+  }
+}

a/src/index.ts

@@ -0,0 +1,3 @@
+import {getMeaningOfLife} from "b";
+
+console.log(getMeaningOfLife());

a/tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "extends": "../tsconfig-base.json",
+  "references": [
+    { "path": "../b" }
+  ],
+  "compilerOptions": {
+    "outDir": "dist",
+    "rootDir": "src"
+  }
+}

a/webpack.config.js

@@ -0,0 +1,25 @@
+const path = require( "path");
+
+module.exports = {
+  entry: './src/index.ts',
+  module: {
+    rules: [
+      {
+        test: /\.tsx?$/,
+        loader: 'ts-loader',
+        options: {
+          projectReferences: true
+        },
+        exclude: /node_modules/,
+      }
+    ],
+  },
+  resolve: {
+    extensions: [ '.tsx', '.ts' ],
+  },
+  output: {
+    filename: 'index.js',
+    path: path.resolve(__dirname, 'dist'),
+  },
+  mode: "development"
+}

b/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "b",
+  "version": "1.0.0",
+  "main": "dist/index.js",
+  "license": "MIT",
+  "devDependencies": {
+    "typescript": "^3.9.3"
+  }
+}

b/src/index.ts

@@ -0,0 +1 @@
+export const getMeaningOfLife = () => 45;

b/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "extends": "../tsconfig-base.json",
+  "compilerOptions": {
+    "outDir": "dist",
+    "rootDir": "src"
+  }
+}

package.json

@@ -0,0 +1,12 @@
+{
+  "name": "ts-loader-project-references",
+  "version": "1.0.0",
+  "main": "index.js",
+  "author": "Jed Thompson <jedster1111@hotmail.co.uk>",
+  "license": "MIT",
+  "private": true,
+  "workspaces": ["a", "b"],
+  "devDependencies": {
+    "typescript": "^3.9.3"
+  }
+}

tsconfig-base.json

@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+      "declaration": true,
+      "target": "es6",
+      "module": "commonjs",
+      "strict": true,
+      "noUnusedLocals": true,
+      "noUnusedParameters": true,
+      "noImplicitReturns": true,
+      "noFallthroughCasesInSwitch": true,
+      "composite": true,
+      "esModuleInterop": true
+  }
+}

tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    {"path": "./a"},
+    {"path": "./b"},
+  ]
+}