From 02d3856371794ea16c6dec27489e24f2b1b5249a Mon Sep 17 00:00:00 2001
From: Hiroki Osame <hiroki.osame@gmail.com>
Date: Sat, 8 Jun 2024 10:48:05 +0900
Subject: [PATCH] fix(cjs): resolve directory import relative to parent (#42)

fixes https://github.com/privatenumber/tsx/issues/583
---
 src/cjs/api/module-resolve-filename.ts | 5 +++--
 tests/fixtures.ts                      | 3 +++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/cjs/api/module-resolve-filename.ts b/src/cjs/api/module-resolve-filename.ts
index 61629c41f..5ac896b5d 100644
--- a/src/cjs/api/module-resolve-filename.ts
+++ b/src/cjs/api/module-resolve-filename.ts
@@ -164,7 +164,7 @@ export const createResolveFilename = (
 				 */
 				const resolved = (
 					tryExtensions(resolve, possiblePath)
-					|| tryExtensions(resolve, path.resolve(possiblePath, 'index'))
+					|| tryExtensions(resolve, `${request}${path.sep}index`)
 				);
 				if (resolved) {
 					return resolved + query;
@@ -187,7 +187,8 @@ export const createResolveFilename = (
 	} catch (error) {
 		const resolved = (
 			tryExtensions(resolve, request)
-			|| tryExtensions(resolve, path.resolve(request, 'index'))
+			// Default resolve handles resovling paths relative to the parent
+			|| tryExtensions(resolve, `${request}${path.sep}index`)
 		);
 		if (resolved) {
 			return resolved + query;
diff --git a/tests/fixtures.ts b/tests/fixtures.ts
index 90acdcbd9..a99f0e37d 100644
--- a/tests/fixtures.ts
+++ b/tests/fixtures.ts
@@ -136,6 +136,9 @@ export const files = {
 	${syntaxLowering}
 	${preserveName}
 	export const cjsContext = ${cjsContextCheck};
+
+	// Implicit directory import works outside of immedaite CWD child
+	import '../ts/'
 	`,
 
 	'json/index.json': JSON.stringify({ loaded: 'json' }),