debt - replace asThenable with Promise.resolve

src/vs/base/common/async.ts

@@ -16,14 +16,6 @@ export function isThenable<T>(obj: any): obj is Thenable<T> {
 	return obj && typeof (<Thenable<any>>obj).then === 'function';
 }
 
-export function toThenable<T>(arg: T | Thenable<T>): Thenable<T> {
-	if (isThenable(arg)) {
-		return arg;
-	} else {
-		return TPromise.as(arg);
-	}
-}
-
 export interface CancelablePromise<T> extends Promise<T> {
 	cancel(): void;
 }

src/vs/editor/contrib/folding/syntaxRangeProvider.ts

@@ -7,7 +7,6 @@
 
 import { FoldingRangeProvider, FoldingRange, FoldingContext } from 'vs/editor/common/modes';
 import { onUnexpectedExternalError } from 'vs/base/common/errors';
-import { toThenable } from 'vs/base/common/async';
 import { ITextModel } from 'vs/editor/common/model';
 import { RangeProvider } from './folding';
 import { TPromise } from 'vs/base/common/winjs.base';
@@ -50,7 +49,7 @@ export class SyntaxRangeProvider implements RangeProvider {
 function collectSyntaxRanges(providers: FoldingRangeProvider[], model: ITextModel, cancellationToken: CancellationToken): Thenable<IFoldingRangeData[] | null> {
 	let rangeData: IFoldingRangeData[] = null;
 	let promises = providers.map((provider, i) => {
-		return toThenable(provider.provideFoldingRanges(model, foldingContext, cancellationToken)).then(ranges => {
+		return Promise.resolve(provider.provideFoldingRanges(model, foldingContext, cancellationToken)).then(ranges => {
 			if (cancellationToken.isCancellationRequested) {
 				return;
 			}
@@ -187,4 +186,4 @@ export function sanitizeRanges(rangeData: IFoldingRangeData[], limit: number): F
 		}
 	}
 	return collector.toIndentRanges();
-}
\ No newline at end of file
+}

src/vs/editor/standalone/browser/standaloneLanguages.ts

@@ -16,7 +16,6 @@ import { LanguageConfiguration, IndentAction } from 'vs/editor/common/modes/lang
 import { Position } from 'vs/editor/common/core/position';
 import { Range } from 'vs/editor/common/core/range';
 import { CancellationToken } from 'vs/base/common/cancellation';
-import { toThenable } from 'vs/base/common/async';
 import { compile } from 'vs/editor/standalone/common/monarch/monarchCompile';
 import { createTokenizationSupport } from 'vs/editor/standalone/common/monarch/monarchLexer';
 import { LanguageConfigurationRegistry } from 'vs/editor/common/modes/languageConfigurationRegistry';
@@ -352,7 +351,7 @@ export function registerHoverProvider(languageId: string, provider: modes.HoverP
 		provideHover: (model: model.ITextModel, position: Position, token: CancellationToken): Thenable<modes.Hover> => {
 			let word = model.getWordAtPosition(position);
 
-			return toThenable<modes.Hover>(provider.provideHover(model, position, token)).then((value) => {
+			return Promise.resolve<modes.Hover>(provider.provideHover(model, position, token)).then((value) => {
 				if (!value) {
 					return undefined;
 				}
@@ -779,7 +778,7 @@ class SuggestAdapter {
 
 	provideCompletionItems(model: model.ITextModel, position: Position, context: modes.SuggestContext, token: CancellationToken): Thenable<modes.ISuggestResult> {
 		const result = this._provider.provideCompletionItems(model, position, token, context);
-		return toThenable<CompletionItem[] | CompletionList>(result).then(value => {
+		return Promise.resolve<CompletionItem[] | CompletionList>(result).then(value => {
 			const result: modes.ISuggestResult = {
 				suggestions: []
 			};
@@ -830,7 +829,7 @@ class SuggestAdapter {
 			return TPromise.as(suggestion);
 		}
 
-		return toThenable(this._provider.resolveCompletionItem(item, token)).then(resolvedItem => {
+		return Promise.resolve(this._provider.resolveCompletionItem(item, token)).then(resolvedItem => {
 			let wordStartPos = position;
 			const word = model.getWordUntilPosition(position);
 			if (word) {

src/vs/workbench/api/node/extHostTextEditors.ts

@@ -5,7 +5,6 @@
 'use strict';
 
 import { Event, Emitter } from 'vs/base/common/event';
-import { toThenable } from 'vs/base/common/async';
 import { TextEditorSelectionChangeKind } from './extHostTypes';
 import * as TypeConverters from './extHostTypeConverters';
 import { TextEditorDecorationType, ExtHostTextEditor } from './extHostTextEditor';
@@ -149,6 +148,6 @@ export class ExtHostEditors implements ExtHostEditorsShape {
 	}
 
 	getDiffInformation(id: string): Thenable<vscode.LineChange[]> {
-		return toThenable(this._proxy.$getDiffInformation(id));
+		return Promise.resolve(this._proxy.$getDiffInformation(id));
 	}
 }