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tsWorker.ts
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tsWorker.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
'use strict';
import * as ts from './lib/typescriptServices';
import { lib_dts, lib_es6_dts } from './lib/lib';
import Promise = monaco.Promise;
import IWorkerContext = monaco.worker.IWorkerContext;
const DEFAULT_LIB = {
NAME: 'defaultLib:lib.d.ts',
CONTENTS: lib_dts
};
const ES6_LIB = {
NAME: 'defaultLib:lib.es6.d.ts',
CONTENTS: lib_es6_dts
};
export class TypeScriptWorker implements ts.LanguageServiceHost {
// --- model sync -----------------------
private _ctx: IWorkerContext;
private _extraLibs: { [fileName: string]: string } = Object.create(null);
private _languageService = ts.createLanguageService(this);
private _compilerOptions: ts.CompilerOptions;
constructor(ctx: IWorkerContext, createData: ICreateData) {
this._ctx = ctx;
this._compilerOptions = createData.compilerOptions;
this._extraLibs = createData.extraLibs;
}
// --- language service host ---------------
getCompilationSettings(): ts.CompilerOptions {
return this._compilerOptions;
}
getScriptFileNames(): string[] {
let models = this._ctx.getMirrorModels().map(model => model.uri.toString());
return models.concat(Object.keys(this._extraLibs));
}
private _getModel(fileName: string): monaco.worker.IMirrorModel {
let models = this._ctx.getMirrorModels();
for (let i = 0; i < models.length; i++) {
if (models[i].uri.toString() === fileName) {
return models[i];
}
}
return null;
}
getScriptVersion(fileName: string): string {
let model = this._getModel(fileName);
if (model) {
return model.version.toString();
} else if (this.isDefaultLibFileName(fileName) || fileName in this._extraLibs) {
// extra lib and default lib are static
return '1';
}
}
getScriptSnapshot(fileName: string): ts.IScriptSnapshot {
let text: string;
let model = this._getModel(fileName);
if (model) {
// a true editor model
text = model.getValue();
} else if (fileName in this._extraLibs) {
// static extra lib
text = this._extraLibs[fileName];
} else if (fileName === DEFAULT_LIB.NAME) {
text = DEFAULT_LIB.CONTENTS;
} else if (fileName === ES6_LIB.NAME) {
text = ES6_LIB.CONTENTS;
} else {
return;
}
return <ts.IScriptSnapshot>{
getText: (start, end) => text.substring(start, end),
getLength: () => text.length,
getChangeRange: () => undefined
};
}
getScriptKind?(fileName: string): ts.ScriptKind {
const suffix = fileName.substr(fileName.lastIndexOf('.') + 1);
switch (suffix) {
case 'ts': return ts.ScriptKind.TS;
case 'tsx': return ts.ScriptKind.TSX;
case 'js': return ts.ScriptKind.JS;
case 'jsx': return ts.ScriptKind.JSX;
default: return this.getCompilationSettings().allowJs
? ts.ScriptKind.JS
: ts.ScriptKind.TS;
}
}
getCurrentDirectory(): string {
return '';
}
getDefaultLibFileName(options: ts.CompilerOptions): string {
// TODO@joh support lib.es7.d.ts
return options.target <= ts.ScriptTarget.ES5 ? DEFAULT_LIB.NAME : ES6_LIB.NAME;
}
isDefaultLibFileName(fileName: string): boolean {
return fileName === this.getDefaultLibFileName(this._compilerOptions);
}
// --- language features
private static clearFiles(diagnostics: ts.Diagnostic[]) {
// Clear the `file` field, which cannot be JSON'yfied because it
// contains cyclic data structures.
diagnostics.forEach(diag => {
diag.file = undefined;
const related = <ts.Diagnostic[]>diag.relatedInformation;
if (related) {
related.forEach(diag2 => diag2.file = undefined);
}
});
}
getSyntacticDiagnostics(fileName: string): Promise<ts.Diagnostic[]> {
const diagnostics = this._languageService.getSyntacticDiagnostics(fileName);
TypeScriptWorker.clearFiles(diagnostics);
return Promise.as(diagnostics);
}
getSemanticDiagnostics(fileName: string): Promise<ts.Diagnostic[]> {
const diagnostics = this._languageService.getSemanticDiagnostics(fileName);
TypeScriptWorker.clearFiles(diagnostics);
return Promise.as(diagnostics);
}
getCompilerOptionsDiagnostics(fileName: string): Promise<ts.Diagnostic[]> {
const diagnostics = this._languageService.getCompilerOptionsDiagnostics();
TypeScriptWorker.clearFiles(diagnostics);
return Promise.as(diagnostics);
}
getCompletionsAtPosition(fileName: string, position: number): Promise<ts.CompletionInfo> {
return Promise.as(this._languageService.getCompletionsAtPosition(fileName, position, undefined));
}
getCompletionEntryDetails(fileName: string, position: number, entry: string): Promise<ts.CompletionEntryDetails> {
return Promise.as(this._languageService.getCompletionEntryDetails(fileName, position, entry, undefined, undefined, undefined));
}
getSignatureHelpItems(fileName: string, position: number): Promise<ts.SignatureHelpItems> {
return Promise.as(this._languageService.getSignatureHelpItems(fileName, position, undefined));
}
getQuickInfoAtPosition(fileName: string, position: number): Promise<ts.QuickInfo> {
return Promise.as(this._languageService.getQuickInfoAtPosition(fileName, position));
}
getOccurrencesAtPosition(fileName: string, position: number): Promise<ts.ReferenceEntry[]> {
return Promise.as(this._languageService.getOccurrencesAtPosition(fileName, position));
}
getDefinitionAtPosition(fileName: string, position: number): Promise<ts.DefinitionInfo[]> {
return Promise.as(this._languageService.getDefinitionAtPosition(fileName, position));
}
getReferencesAtPosition(fileName: string, position: number): Promise<ts.ReferenceEntry[]> {
return Promise.as(this._languageService.getReferencesAtPosition(fileName, position));
}
getNavigationBarItems(fileName: string): Promise<ts.NavigationBarItem[]> {
return Promise.as(this._languageService.getNavigationBarItems(fileName));
}
getFormattingEditsForDocument(fileName: string, options: ts.FormatCodeOptions): Promise<ts.TextChange[]> {
return Promise.as(this._languageService.getFormattingEditsForDocument(fileName, options));
}
getFormattingEditsForRange(fileName: string, start: number, end: number, options: ts.FormatCodeOptions): Promise<ts.TextChange[]> {
return Promise.as(this._languageService.getFormattingEditsForRange(fileName, start, end, options));
}
getFormattingEditsAfterKeystroke(fileName: string, postion: number, ch: string, options: ts.FormatCodeOptions): Promise<ts.TextChange[]> {
return Promise.as(this._languageService.getFormattingEditsAfterKeystroke(fileName, postion, ch, options));
}
getEmitOutput(fileName: string): Promise<ts.EmitOutput> {
return Promise.as(this._languageService.getEmitOutput(fileName));
}
}
export interface ICreateData {
compilerOptions: ts.CompilerOptions;
extraLibs: { [path: string]: string };
}
export function create(ctx: IWorkerContext, createData: ICreateData): TypeScriptWorker {
return new TypeScriptWorker(ctx, createData);
}