Cherry-pick PR #36993 into release-3.8 (#37020)

Component commits: 7721570 Harden telemetryOnOpenFile 9535e7b Merge branch 'master' of https://github.com/RyanCavanaugh/TypeScript into fix36984 Co-authored-by: Ryan Cavanaugh <RyanCavanaugh@users.noreply.github.com>
microsoft · Feb 25, 2020 · d76a45a · d76a45a
1 parent 98fc075
commit d76a45a
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/server/editorServices.ts b/src/server/editorServices.ts
@@ -3117,8 +3117,9 @@ namespace ts.server {
                 return;
             }
 
-            const info: OpenFileInfo = { checkJs: !!project.getSourceFile(scriptInfo.path)!.checkJsDirective };
-            this.eventHandler({ eventName: OpenFileInfoTelemetryEvent, data: { info } });
+            const sourceFile = project.getSourceFile(scriptInfo.path);
+            const checkJs = !!sourceFile && !!sourceFile.checkJsDirective;
+            this.eventHandler({ eventName: OpenFileInfoTelemetryEvent, data: { info: { checkJs } } });
         }
 
         /**