fix microsoft/vscode#108567

jrieken · jrieken · commit 8c8a83ce5279 · 2020-10-15T11:51:12.000+02:00
diff --git a/src/references/model.ts b/src/references/model.ts
@@ -338,9 +338,11 @@ export class ReferenceItem {
 		}
 		if (warmUpNext) {
 			// load next document once this document has been loaded
-			const next = <FileItem>this.file.model.next(this.file);
-			if (next !== this.file) {
+			const next = this.file.model.next(this.file);
+			if (next instanceof FileItem && next !== this.file) {
 				vscode.workspace.openTextDocument(next.uri);
+			} else if (next instanceof ReferenceItem) {
+				vscode.workspace.openTextDocument(next.location.uri);
 			}
 		}
 		return this._document;

Original file line number	Diff line number	Diff line change
`@@ -338,9 +338,11 @@ export class ReferenceItem {`
`338`	`338`	`}`
`339`	`339`	`if (warmUpNext) {`
`340`	`340`	`// load next document once this document has been loaded`
`341`		`- const next = <FileItem>this.file.model.next(this.file);`
`342`		`- if (next !== this.file) {`
	`341`	`+ const next = this.file.model.next(this.file);`
	`342`	`+ if (next instanceof FileItem && next !== this.file) {`
`343`	`343`	`vscode.workspace.openTextDocument(next.uri);`
	`344`	`+ } else if (next instanceof ReferenceItem) {`
	`345`	`+ vscode.workspace.openTextDocument(next.location.uri);`
`344`	`346`	`}`
`345`	`347`	`}`
`346`	`348`	`return this._document;`