a8e2ee1343
Now that the Angular LS is a proper tsserver plugin, it does not make sense for it to maintain its own language service API. This is part one of the effort to remove our custom LanguageService interface. This interface is cumbersome because we have to do two transformations: ng def -> ts def -> lsp definition The TS LS interface is more comprehensive, so this allows the Angular LS to return more information. PR Close #31972
56 lines
1.7 KiB
TypeScript
56 lines
1.7 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 ts from 'typescript'; // used as value and is provided at runtime
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import {TemplateInfo} from './common';
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import {locateSymbol} from './locate_symbol';
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import {Span} from './types';
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/**
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* Convert Angular Span to TypeScript TextSpan. Angular Span has 'start' and
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* 'end' whereas TS TextSpan has 'start' and 'length'.
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* @param span Angular Span
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*/
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function ngSpanToTsTextSpan(span: Span): ts.TextSpan {
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return {
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start: span.start,
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length: span.end - span.start,
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};
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}
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export function getDefinitionAndBoundSpan(info: TemplateInfo): ts.DefinitionInfoAndBoundSpan|
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undefined {
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const symbolInfo = locateSymbol(info);
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if (!symbolInfo) {
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return;
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}
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const textSpan = ngSpanToTsTextSpan(symbolInfo.span);
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const {symbol} = symbolInfo;
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const {container, definition: locations} = symbol;
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if (!locations || !locations.length) {
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// symbol.definition is really the locations of the symbol. There could be
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// more than one. No meaningful info could be provided without any location.
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return {textSpan};
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}
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const containerKind = container ? container.kind : ts.ScriptElementKind.unknown;
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const containerName = container ? container.name : '';
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const definitions = locations.map((location) => {
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return {
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kind: symbol.kind as ts.ScriptElementKind,
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name: symbol.name,
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containerKind: containerKind as ts.ScriptElementKind,
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containerName: containerName,
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textSpan: ngSpanToTsTextSpan(location.span),
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fileName: location.fileName,
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};
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});
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return {
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definitions, textSpan,
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};
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}
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