svelte-language-server
Version:
A language server for Svelte
75 lines • 3.17 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.HoverProviderImpl = void 0;
const typescript_1 = __importDefault(require("typescript"));
const documents_1 = require("../../../lib/documents");
const previewer_1 = require("../previewer");
const utils_1 = require("../utils");
const utils_2 = require("./utils");
class HoverProviderImpl {
constructor(lsAndTsDocResolver) {
this.lsAndTsDocResolver = lsAndTsDocResolver;
}
async doHover(document, position) {
const { lang, tsDoc, userPreferences } = await this.getLSAndTSDoc(document);
const eventHoverInfo = this.getEventHoverInfo(lang, document, tsDoc, position);
if (eventHoverInfo) {
return eventHoverInfo;
}
const offset = tsDoc.offsetAt(tsDoc.getGeneratedPosition(position));
const info = lang.getQuickInfoAtPosition(tsDoc.filePath, offset, userPreferences.maximumHoverLength);
if (!info) {
return null;
}
let declaration = typescript_1.default.displayPartsToString(info.displayParts);
if (tsDoc.isSvelte5Plus &&
declaration.includes('(alias)') &&
declaration.includes('__sveltets_2_IsomorphicComponent')) {
// info ends with "import ComponentName"
declaration = declaration.substring(declaration.lastIndexOf('import'));
}
const documentation = (0, previewer_1.getMarkdownDocumentation)(info.documentation, info.tags);
// https://microsoft.github.io/language-server-protocol/specification#textDocument_hover
const contents = ['```typescript', declaration, '```']
.concat(documentation ? ['---', documentation] : [])
.join('\n');
return (0, documents_1.mapObjWithRangeToOriginal)(tsDoc, {
range: (0, utils_1.convertRange)(tsDoc, info.textSpan),
contents
});
}
getEventHoverInfo(lang, doc, tsDoc, originalPosition) {
const possibleEventName = (0, documents_1.getWordAt)(doc.getText(), doc.offsetAt(originalPosition), {
left: /\S+$/,
right: /[\s=]/
});
if (!possibleEventName.startsWith('on:')) {
return null;
}
const component = (0, utils_2.getComponentAtPosition)(lang, doc, tsDoc, originalPosition);
if (!component) {
return null;
}
const eventName = possibleEventName.substr('on:'.length);
const event = component.getEvents().find((event) => event.name === eventName);
if (!event) {
return null;
}
return {
contents: [
'```typescript',
`${event.name}: ${event.type}`,
'```',
event.doc || ''
].join('\n')
};
}
async getLSAndTSDoc(document) {
return this.lsAndTsDocResolver.getLSAndTSDoc(document);
}
}
exports.HoverProviderImpl = HoverProviderImpl;
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