explorerModel: do not use isEqualOrParent in find

isidorn · isidorn · commit 19a9d83d271f · 2018-08-21T17:14:55.000+02:00
diff --git a/src/vs/workbench/parts/files/common/explorerModel.ts b/src/vs/workbench/parts/files/common/explorerModel.ts
@@ -15,7 +15,7 @@ import { IWorkspaceContextService } from 'vs/platform/workspace/common/workspace
 import { toResource, IEditorIdentifier, IEditorInput } from 'vs/workbench/common/editor';
 import { IDisposable, dispose } from 'vs/base/common/lifecycle';
 import { Schemas } from 'vs/base/common/network';
-import { rtrim } from 'vs/base/common/strings';
+import { rtrim, startsWithIgnoreCase, startsWith } from 'vs/base/common/strings';
 import { IEditorGroup } from 'vs/workbench/services/group/common/editorGroupsService';
 
 export class Model {
@@ -342,7 +342,9 @@ export class ExplorerItem {
 	 */
 	public find(resource: URI): ExplorerItem {
 		// Return if path found
-		if (resource && resources.isEqualOrParent(resource, this.resource)) {
+		// For performance reasons try to do the comparison as fast as possible
+		if (resource && this.resource.scheme === resource.scheme && this.resource.authority === resource.authority &&
+			(resources.hasToIgnoreCase(resource) ? startsWithIgnoreCase(resource.path, this.resource.path) : startsWith(resource.path, this.resource.path))) {
 			return this.findByPath(rtrim(resource.path, paths.sep), this.resource.path.length);
 		}
 
