From 92a3bbf329269a1d123ea4513541d3a6a418dd2d Mon Sep 17 00:00:00 2001
From: Simon Buchan <simon.buchan.nz@gmail.com>
Date: Mon, 15 Jul 2024 16:35:57 +1200
Subject: [PATCH] fix(register): default TSCONFIG_PATH on windows. (#818)

---
 packages/register/esm.mts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/register/esm.mts b/packages/register/esm.mts
index 6f62babc0..ee23664c6 100644
--- a/packages/register/esm.mts
+++ b/packages/register/esm.mts
@@ -7,7 +7,7 @@ import {
   type ResolveHook,
   builtinModules,
 } from 'node:module'
-import { extname, join } from 'node:path'
+import { extname, isAbsolute, join } from 'node:path'
 import { fileURLToPath, parse as parseUrl, pathToFileURL } from 'node:url'
 
 import debugFactory from 'debug'
@@ -29,7 +29,7 @@ tsconfig.module = ts.ModuleKind.ESNext
 const TSCONFIG_PATH = (function () {
   const pathFromEnv =
     process.env.SWC_NODE_PROJECT ?? process.env.TS_NODE_PROJECT ?? join(process.cwd(), 'tsconfig.json')
-  if (!pathFromEnv.startsWith('/')) {
+  if (!isAbsolute(pathFromEnv)) {
     return join(process.cwd(), pathFromEnv)
   }
   return pathFromEnv