atom-languageclient/build/lib/adapters/signature-help-adapter.js

Integrate Language Servers with Atom

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const assert = require("assert");
const convert_1 = require("../convert");
const atom_1 = require("atom");
class SignatureHelpAdapter {
    constructor(server, grammarScopes) {
        this._disposables = new atom_1.CompositeDisposable();
        this._connection = server.connection;
        this._capabilities = server.capabilities;
        this._grammarScopes = grammarScopes;
    }
    /** @returns A {Boolean} indicating this adapter can adapt the server based on the given serverCapabilities. */
    static canAdapt(serverCapabilities) {
        return serverCapabilities.signatureHelpProvider != null;
    }
    dispose() {
        this._disposables.dispose();
    }
    attach(register) {
        const { signatureHelpProvider } = this._capabilities;
        assert(signatureHelpProvider != null);
        let triggerCharacters;
        if (signatureHelpProvider && Array.isArray(signatureHelpProvider.triggerCharacters)) {
            triggerCharacters = new Set(signatureHelpProvider.triggerCharacters);
        }
        this._disposables.add(register({
            priority: 1,
            grammarScopes: this._grammarScopes,
            triggerCharacters,
            getSignatureHelp: this.getSignatureHelp.bind(this),
        }));
    }
    /** Public: Retrieves signature help for a given editor and position. */
    getSignatureHelp(editor, point) {
        return this._connection.signatureHelp(convert_1.default.editorToTextDocumentPositionParams(editor, point));
    }
}
exports.default = SignatureHelpAdapter;
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