aws-cdk/lib/commands/lsp.js

AWS CDK Toolkit CLI, the command line tool for CDK apps

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.lsp = lsp;
const process = __importStar(require("process"));
const version_1 = require("../cli/version");
const explorer_1 = require("../private/explorer");
/**
 * Runs the CDK Language Server command.
 *
 * With `--features`, prints the LSP capability manifest as JSON and exits.
 * Otherwise starts the server, which speaks LSP/JSON-RPC on stdin/stdout -- in
 * that mode the command must not write anything else to stdout (CDK CLI logs go
 * to stderr, keeping the protocol channel clean). The server runs until the LSP
 * client closes the stdio channel (stdin end), then exits 0.
 */
async function lsp(options = {}) {
    // `--features` is a probe: print the capability manifest as JSON and exit
    // without starting the server, so a client can detect LSP presence and
    // features without opening a session.
    if (options.features) {
        process.stdout.write(JSON.stringify((0, explorer_1.cdkLspManifest)((0, version_1.versionNumber)())) + '\n');
        return 0;
    }
    (0, explorer_1.startLspServer)((0, version_1.versionNumber)());
    await new Promise((resolve) => {
        const done = () => resolve();
        process.stdin.once('end', done);
        process.stdin.once('close', done);
    });
    return 0;
}
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