add main-side logging for save participants, #42013

src/vs/workbench/api/electron-browser/mainThreadSaveParticipant.ts

@@ -27,6 +27,7 @@ import { ICodeEditor } from 'vs/editor/browser/editorBrowser';
 import { IProgressService2, ProgressLocation } from 'vs/platform/progress/common/progress';
 import { localize } from 'vs/nls';
 import { isFalsyOrEmpty } from 'vs/base/common/arrays';
+import { ILogService } from 'vs/platform/log/common/log';
 
 export interface ISaveParticipantParticipant extends ISaveParticipant {
 	// progressMessage: string;
@@ -279,8 +280,9 @@ export class SaveParticipant implements ISaveParticipant {
 
 	constructor(
 		extHostContext: IExtHostContext,
+		@IInstantiationService instantiationService: IInstantiationService,
 		@IProgressService2 private _progressService: IProgressService2,
-		@IInstantiationService instantiationService: IInstantiationService
+		@ILogService private _logService: ILogService
 	) {
 		this._saveParticipants = [
 			instantiationService.createInstance(TrimWhitespaceParticipant),
@@ -303,7 +305,7 @@ export class SaveParticipant implements ISaveParticipant {
 			const promiseFactory = this._saveParticipants.map(p => () => {
 				return Promise.resolve(p.participate(model, env));
 			});
-			return sequence(promiseFactory).then(() => { });
+			return sequence(promiseFactory).then(() => { }, err => this._logService.error(err));
 		});
 	}
 }