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mockLanguageServer.ts
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148 lines (136 loc) · 4.17 KB
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
'use strict';
import {
CancellationToken,
CodeLens,
CompletionContext,
CompletionItem,
CompletionList,
DocumentSymbol,
Hover,
Location,
LocationLink,
Position,
ProviderResult,
ReferenceContext,
SignatureHelp,
SignatureHelpContext,
SymbolInformation,
TextDocument,
TextDocumentContentChangeEvent,
WorkspaceEdit
} from 'vscode';
import { ILanguageServer } from '../../client/activation/types';
import { createDeferred, Deferred } from '../../client/common/utils/async';
import { noop } from '../../client/common/utils/misc';
// tslint:disable:no-any unified-signatures
export class MockLanguageServer implements ILanguageServer {
private notificationPromise: Deferred<void> | undefined;
private contents = '';
private versionId: number = 0;
public waitForNotification(): Promise<void> {
this.notificationPromise = createDeferred();
return this.notificationPromise.promise;
}
public getDocumentContents(): string {
return this.contents;
}
public getVersionId(): number | null {
return this.versionId;
}
public handleChanges(document: TextDocument, changes: TextDocumentContentChangeEvent[]) {
this.versionId = document.version;
this.applyChanges(changes);
this.resolveNotificationPromise();
}
public handleOpen(_document: TextDocument) {
noop();
}
public provideRenameEdits(
_document: TextDocument,
_position: Position,
_newName: string,
_token: CancellationToken
): ProviderResult<WorkspaceEdit> {
this.resolveNotificationPromise();
return null;
}
public provideDefinition(
_document: TextDocument,
_position: Position,
_token: CancellationToken
): ProviderResult<Location | Location[] | LocationLink[]> {
this.resolveNotificationPromise();
return null;
}
public provideHover(
_document: TextDocument,
_position: Position,
_token: CancellationToken
): ProviderResult<Hover> {
this.resolveNotificationPromise();
return null;
}
public provideReferences(
_document: TextDocument,
_position: Position,
_context: ReferenceContext,
_token: CancellationToken
): ProviderResult<Location[]> {
this.resolveNotificationPromise();
return null;
}
public provideCompletionItems(
_document: TextDocument,
_position: Position,
_token: CancellationToken,
_context: CompletionContext
): ProviderResult<CompletionItem[] | CompletionList> {
this.resolveNotificationPromise();
return null;
}
public provideCodeLenses(_document: TextDocument, _token: CancellationToken): ProviderResult<CodeLens[]> {
this.resolveNotificationPromise();
return null;
}
public provideDocumentSymbols(
_document: TextDocument,
_token: CancellationToken
): ProviderResult<SymbolInformation[] | DocumentSymbol[]> {
this.resolveNotificationPromise();
return null;
}
public provideSignatureHelp(
_document: TextDocument,
_position: Position,
_token: CancellationToken,
_context: SignatureHelpContext
): ProviderResult<SignatureHelp> {
this.resolveNotificationPromise();
return null;
}
public dispose(): void {
noop();
}
public disconnect(): void {
noop();
}
public reconnect(): void {
noop();
}
private applyChanges(changes: TextDocumentContentChangeEvent[]) {
changes.forEach((c) => {
const before = this.contents.substr(0, c.rangeOffset);
const after = this.contents.substr(c.rangeOffset + c.rangeLength);
this.contents = `${before}${c.text}${after}`;
});
this.versionId = this.versionId + 1;
}
private resolveNotificationPromise() {
if (this.notificationPromise) {
this.notificationPromise.resolve();
this.notificationPromise = undefined;
}
}
}