fixes microsoft#89295

joaomoreno · joaomoreno · commit bf15553f77aa · 2020-01-29T12:45:41.000+01:00
diff --git a/src/vs/base/browser/ui/tree/abstractTree.ts b/src/vs/base/browser/ui/tree/abstractTree.ts
@@ -1585,7 +1585,7 @@ export abstract class AbstractTree<T, TFilterData, TRef> implements IDisposable
 	}
 
 	open(elements: TRef[], browserEvent?: UIEvent): void {
-		const indexes = elements.map(e => this.model.getListIndex(e));
+		const indexes = elements.map(e => this.model.getListIndex(e)).filter(i => i >= 0);
 		this.view.open(indexes, browserEvent);
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -1585,7 +1585,7 @@ export abstract class AbstractTree<T, TFilterData, TRef> implements IDisposable`
`1585`	`1585`	`}`
`1586`	`1586`
`1587`	`1587`	`open(elements: TRef[], browserEvent?: UIEvent): void {`
`1588`		`- const indexes = elements.map(e => this.model.getListIndex(e));`
	`1588`	`+ const indexes = elements.map(e => this.model.getListIndex(e)).filter(i => i >= 0);`
`1589`	`1589`	`this.view.open(indexes, browserEvent);`
`1590`	`1590`	`}`
`1591`	`1591`