Function loadTypeScript

src/ast/loader.ts:14–49

(projectRoot: string)

let cachedRoot: string = "";

export function loadTypeScript(projectRoot: string): any | null {
  if (cached !== undefined && cachedRoot === projectRoot) return cached;
  cachedRoot = projectRoot;

  // Strategy 1: createRequire from project root (works for npm/yarn)
  try {
    const req = createRequire(join(projectRoot, "package.json"));
    cached = req("typescript");
    return cached;
  } catch {}

  // Strategy 2: Direct path (works for pnpm with public-hoist-pattern)
  try {
    const directPath = join(projectRoot, "node_modules", "typescript");
    const req = createRequire(join(directPath, "package.json"));
    cached = req(directPath);
    return cached;
  } catch {}

  // Strategy 3: Find in pnpm .pnpm store (strict mode fallback)
  try {
    const pnpmDir = join(projectRoot, "node_modules", ".pnpm");
    const entries = readdirSync(pnpmDir);
    const tsDir = entries.find((e) => e.startsWith("typescript@"));
    if (tsDir) {
      const tsPath = join(pnpmDir, tsDir, "node_modules", "typescript");
      const req = createRequire(join(tsPath, "package.json"));
      cached = req(tsPath);
      return cached;
    }
  } catch {}

  // TypeScript not available — fall back to regex
  cached = null;
  return null;
}

export function resetCache(): void {
  cached = undefined;