From 928aad993db13afcc3161902fbaf5b5d32fce389 Mon Sep 17 00:00:00 2001
From: Chris Tate <chris@ctate.dev>
Date: Sun, 25 Oct 2026 06:40:14 -0500
Subject: [PATCH] Add island packages to the judged set without a union spread

The self-hosted compiler refuses spreading 'number[] | Set<string>' into
a string[] literal (SC1090), so pnpm build:native-compiler failed on
loadFrontend. The judged set now starts from the library packages and
adds each island package in a loop.
---
 packages/compiler/src/frontend/pipeline.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/compiler/src/frontend/pipeline.ts b/packages/compiler/src/frontend/pipeline.ts
index 27b2d3d88..c4bd921c3 100644
--- a/packages/compiler/src/frontend/pipeline.ts
+++ b/packages/compiler/src/frontend/pipeline.ts
@@ -545,7 +545,9 @@ function loadFrontend(
   // The shared preflight/lowering refusal and dependency-closure checks remain.
   // Node island packages are judged already: they stay out of the
   // program, typed by their declarations (scope-B NI-4).
-  const judged = new Set<string>([...libraryNpmStatic, ...(options.islandPackages ?? [])]);
+  const judged = new Set<string>(libraryNpmStatic);
+  if (options.islandPackages !== undefined)
+    for (const name of options.islandPackages) judged.add(name);
   let requested: string[] = [];
   let reusableScout: ReturnType<typeof loadProgram> | null = null;
   let reusablePreflight: ScrDiagnostic[] | null = null;