Experiment with allowing absolute paths for imports in core

package.json

@@ -9,6 +9,9 @@
   "main": "./out/main.js",
   "type": "module",
   "private": true,
+  "imports": {
+    "#vs/*.js": "./out/vs/*.js"
+  },
   "scripts": {
     "test": "echo Please run any of the test scripts from the scripts folder.",
     "test-browser": "npx playwright install && node test/unit/browser/index.js",

src/bootstrap-window.ts

@@ -32,7 +32,7 @@
 		globalThis._VSCODE_FILE_ROOT = baseUrl.toString();
 
 		// Dev only: CSS import map tricks
-		setupCSSImportMaps<T>(configuration, baseUrl);
+		setupDevImportMaps<T>(configuration, baseUrl);
 
 		// ESM Import
 		try {
@@ -181,13 +181,18 @@
 		return uri.replace(/#/g, '%23');
 	}
 
-	function setupCSSImportMaps<T extends ISandboxConfiguration>(configuration: T, baseUrl: URL) {
+	function setupDevImportMaps<T extends ISandboxConfiguration>(configuration: T, baseUrl: URL) {
 
 		// DEV ---------------------------------------------------------------------------------------
 		// DEV: This is for development and enables loading CSS via import-statements via import-maps.
 		// DEV: For each CSS modules that we have we defined an entry in the import map that maps to
 		// DEV: a blob URL that loads the CSS via a dynamic @import-rule.
 		// DEV ---------------------------------------------------------------------------------------
+		const importMap: { imports: Record<string, string> } = {
+			imports: {
+				'#vs/': baseUrl.href + '/vs/'
+			}
+		};
 
 		if (Array.isArray(configuration.cssModules) && configuration.cssModules.length > 0) {
 			performance.mark('code/willAddCssLoader');
@@ -202,25 +207,24 @@
 				style.textContent += `@import url(${url});\n`;
 			};
 
-			const importMap: { imports: Record<string, string> } = { imports: {} };
 			for (const cssModule of configuration.cssModules) {
 				const cssUrl = new URL(cssModule, baseUrl).href;
 				const jsSrc = `globalThis._VSCODE_CSS_LOAD('${cssUrl}');\n`;
 				const blob = new Blob([jsSrc], { type: 'application/javascript' });
 				importMap.imports[cssUrl] = URL.createObjectURL(blob);
 			}
+		}
 
-			const ttp = window.trustedTypes?.createPolicy('vscode-bootstrapImportMap', { createScript(value) { return value; }, });
-			const importMapSrc = JSON.stringify(importMap, undefined, 2);
-			const importMapScript = document.createElement('script');
-			importMapScript.type = 'importmap';
-			importMapScript.setAttribute('nonce', '0c6a828f1297');
-			// @ts-ignore
-			importMapScript.textContent = ttp?.createScript(importMapSrc) ?? importMapSrc;
-			document.head.appendChild(importMapScript);
+		const ttp = window.trustedTypes?.createPolicy('vscode-bootstrapImportMap', { createScript(value) { return value; }, });
+		const importMapSrc = JSON.stringify(importMap, undefined, 2);
+		const importMapScript = document.createElement('script');
+		importMapScript.type = 'importmap';
+		importMapScript.setAttribute('nonce', '0c6a828f1297');
+		// @ts-ignore
+		importMapScript.textContent = ttp?.createScript(importMapSrc) ?? importMapSrc;
+		document.head.appendChild(importMapScript);
 
-			performance.mark('code/didAddCssLoader');
-		}
+		performance.mark('code/didAddCssLoader');
 	}
 
 	(globalThis as any).MonacoBootstrapWindow = { load };

src/tsconfig.base.json

@@ -13,7 +13,7 @@
 		"forceConsistentCasingInFileNames": true,
 		"baseUrl": ".",
 		"paths": {
-			"vs/*": [
+			"#vs/*": [
 				"./vs/*"
 			]
 		},

src/vs/editor/common/codecs/baseToken.ts

@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import { IRange, Range } from '../../../editor/common/core/range.js';
+import { IRange, Range } from '#vs/editor/common/core/range.js';
 
 /**
  * Base class for all tokens with a `range` that

src/vs/platform/log/common/log.ts

@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import * as nls from '../../../nls.js';
+import * as nls from '#vs/nls.js';
 import { toErrorMessage } from '../../../base/common/errorMessage.js';
 import { Emitter, Event } from '../../../base/common/event.js';
 import { hash } from '../../../base/common/hash.js';

src/vs/platform/policy/node/nativePolicyService.ts

@@ -8,7 +8,7 @@ import { IStringDictionary } from '../../../base/common/collections.js';
 import { Throttler } from '../../../base/common/async.js';
 import type { PolicyUpdate, Watcher } from '@vscode/policy-watcher';
 import { MutableDisposable } from '../../../base/common/lifecycle.js';
-import { ILogService } from '../../log/common/log.js';
+import { ILogService } from '#vs/platform/log/common/log.js';
 
 export class NativePolicyService extends AbstractPolicyService implements IPolicyService {