From 60c2947af6e71bc85cabc95f114045d1e829b0e5 Mon Sep 17 00:00:00 2001
From: Charles Lyding <19598772+clydin@users.noreply.github.com>
Date: Wed, 9 Apr 2025 13:21:10 -0400
Subject: [PATCH] fix(@ngtools/webpack): disable TypeScript composite option
 with Angular compiler

The Angular compiler does not directly support the `composite` option within
a referenced `tsconfig` file. If this option is enabled, the Angular compiler
will crash due to the Angular compiler not leveraging the TypeScript
BuilderProgram infrastructure. Since the Angular compiler is not aware of
composite projects nor project references, the `composite` option is disabled
when options are passed to the Angular compiler. This has no effect on non-
Angular related usages of the `tsconfig`.
---
 packages/ngtools/webpack/src/ivy/plugin.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/ngtools/webpack/src/ivy/plugin.ts b/packages/ngtools/webpack/src/ivy/plugin.ts
index 6b054c605fe1..f46b1360f26a 100644
--- a/packages/ngtools/webpack/src/ivy/plugin.ts
+++ b/packages/ngtools/webpack/src/ivy/plugin.ts
@@ -410,6 +410,7 @@ export class AngularWebpackPlugin {
       this.pluginOptions.tsconfig,
       this.pluginOptions.compilerOptions,
     );
+    compilerOptions.composite = false;
     compilerOptions.noEmitOnError = false;
     compilerOptions.suppressOutputPathCheck = true;
     compilerOptions.outDir = undefined;