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Fix null deref when activeEditor is undefined

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Fixes #44009
This commit is contained in:
Matt Bierner
2018-02-20 11:18:27 -08:00
parent ac6efe34cf
commit 508366e3fc
1 changed files with 1 additions and 1 deletions
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2
src/vs/workbench/api/electron-browser/mainThreadWebview.ts
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@@ -346,7 +346,7 @@ export class MainThreadWebview implements MainThreadWebviewShape {
private onEditorsChanged() {
const activeEditor = this._editorService.getActiveEditor();
let newActiveWebview: WebviewInput | undefined = undefined;
if (activeEditor.input instanceof WebviewInput) {
if (activeEditor && activeEditor.input instanceof WebviewInput) {
for (const handle of map.keys(this._webviews)) {
const input = this._webviews.get(handle);
if (input.matches(activeEditor.input)) {