5a562d8a0a
Part 3/3 of language-service refactoring: Change all language service APIs to return TS value since Angular LS will be a proper tsserver plugin. This reduces the need to transform results among Angular <--> TS <--> LSP. PR Close #32116
87 lines
3.2 KiB
TypeScript
87 lines
3.2 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import * as tss from 'typescript/lib/tsserverlibrary';
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import {getTemplateCompletions, ngCompletionToTsCompletionEntry} from './completions';
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import {getDefinitionAndBoundSpan} from './definitions';
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import {getDeclarationDiagnostics, getTemplateDiagnostics, ngDiagnosticToTsDiagnostic, uniqueBySpan} from './diagnostics';
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import {getHover} from './hover';
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import {Diagnostic, LanguageService} from './types';
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import {TypeScriptServiceHost} from './typescript_host';
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/**
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* Create an instance of an Angular `LanguageService`.
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*
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* @publicApi
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*/
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export function createLanguageService(host: TypeScriptServiceHost): LanguageService {
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return new LanguageServiceImpl(host);
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}
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class LanguageServiceImpl implements LanguageService {
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constructor(private readonly host: TypeScriptServiceHost) {}
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getTemplateReferences(): string[] {
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this.host.getAnalyzedModules(); // same role as 'synchronizeHostData'
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return this.host.getTemplateReferences();
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}
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getDiagnostics(fileName: string): tss.Diagnostic[] {
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const analyzedModules = this.host.getAnalyzedModules(); // same role as 'synchronizeHostData'
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const results: Diagnostic[] = [];
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const templates = this.host.getTemplates(fileName);
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for (const template of templates) {
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const ast = this.host.getTemplateAst(template, fileName);
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results.push(...getTemplateDiagnostics(template, ast));
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}
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const declarations = this.host.getDeclarations(fileName);
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if (declarations && declarations.length) {
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results.push(...getDeclarationDiagnostics(declarations, analyzedModules));
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}
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if (!results.length) {
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return [];
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}
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const sourceFile = fileName.endsWith('.ts') ? this.host.getSourceFile(fileName) : undefined;
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return uniqueBySpan(results).map(d => ngDiagnosticToTsDiagnostic(d, sourceFile));
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}
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getCompletionsAt(fileName: string, position: number): tss.CompletionInfo|undefined {
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this.host.getAnalyzedModules(); // same role as 'synchronizeHostData'
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const templateInfo = this.host.getTemplateAstAtPosition(fileName, position);
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if (!templateInfo) {
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return;
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}
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const results = getTemplateCompletions(templateInfo);
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if (!results || !results.length) {
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return;
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}
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return {
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isGlobalCompletion: false,
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isMemberCompletion: false,
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isNewIdentifierLocation: false,
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entries: results.map(ngCompletionToTsCompletionEntry),
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};
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}
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getDefinitionAt(fileName: string, position: number): tss.DefinitionInfoAndBoundSpan|undefined {
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this.host.getAnalyzedModules(); // same role as 'synchronizeHostData'
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const templateInfo = this.host.getTemplateAstAtPosition(fileName, position);
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if (templateInfo) {
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return getDefinitionAndBoundSpan(templateInfo);
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}
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}
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getHoverAt(fileName: string, position: number): tss.QuickInfo|undefined {
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this.host.getAnalyzedModules(); // same role as 'synchronizeHostData'
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const templateInfo = this.host.getTemplateAstAtPosition(fileName, position);
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if (templateInfo) {
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return getHover(templateInfo);
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}
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}
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}
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