From 89621bf3ada0df8dd44c140991008d5d9e598fb6 Mon Sep 17 00:00:00 2001
From: Hiroki Osame <hiroki.osame@gmail.com>
Date: Sat, 8 Jun 2024 10:11:27 +0900
Subject: [PATCH] fix(esm): resolve .ts extension in imports map

fixes https://github.com/privatenumber/tsx/issues/579
---
 src/esm/hook/resolve.ts | 7 +++++--
 tests/fixtures.ts       | 6 +++++-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/esm/hook/resolve.ts b/src/esm/hook/resolve.ts
index 7a1959b81..2f6ca4ee1 100644
--- a/src/esm/hook/resolve.ts
+++ b/src/esm/hook/resolve.ts
@@ -161,8 +161,11 @@ export const resolve: resolve = async (
 	// If `allowJs` is set in `tsconfig.json`, then we'll apply the same resolution logic
 	// to files without a TypeScript extension.
 	if (
-		// Ignore if it's a bare package name and there's no subpath
-		!isBarePackageName.test(specifier)
+		(
+			specifier.startsWith('#')
+			// Ignore if it's a bare package name and there's no subpath
+			|| !isBarePackageName.test(specifier)
+		)
 		&& (
 			tsExtensionsPattern.test(context.parentURL!)
 			|| allowJs
diff --git a/tests/fixtures.ts b/tests/fixtures.ts
index 3afa2e5da..90acdcbd9 100644
--- a/tests/fixtures.ts
+++ b/tests/fixtures.ts
@@ -272,10 +272,14 @@ export const files = {
 			'package.json': createPackageJson({
 				type: 'module',
 				main: './index.js',
+				imports: {
+					'#*': './*',
+				},
 			}),
 			'index.js': `${syntaxLowering}\nexport * from "./empty-export"`,
-			'ts.ts': syntaxLowering,
 			'empty-export/index.js': 'export {}',
+			'ts.ts': `${syntaxLowering}\nexport * from "#empty.js"`,
+			'empty.ts': 'export {}',
 		},
 	},
 };