@eagleoutice/flowr/engines.js

Static Dataflow Analyzer and Program Slicer for the R Programming Language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.retrieveEngineInstances = retrieveEngineInstances;
const config_1 = require("./config");
const shell_1 = require("./r-bridge/shell");
const ansi_1 = require("./util/text/ansi");
const tree_sitter_executor_1 = require("./r-bridge/lang-4.x/tree-sitter/tree-sitter-executor");
const log_1 = require("./util/log");
/**
 * Retrieve all requested engine instance.
 * Please make sure that if this includes the R engine, that you properly shut it down again!
 */
async function retrieveEngineInstances(config, defaultOnly = false) {
    const engines = {};
    if (config_1.FlowrConfig.getForEngine(config, 'r-shell') && (!defaultOnly || config.defaultEngine === 'r-shell')) {
        // we keep an active shell session to allow other parse investigations :)
        engines['r-shell'] = new shell_1.RShell(config_1.FlowrConfig.getForEngine(config, 'r-shell'), {
            revive: 2 /* RShellReviveOptions.Always */,
            onRevive: (code, signal) => {
                const signalText = signal == null ? '' : ` and signal ${signal}`;
                console.log(ansi_1.formatter.format(`R process exited with code ${code}${signalText}. Restarting...`, { color: 5 /* Colors.Magenta */, effect: ansi_1.ColorEffect.Foreground }));
                console.log((0, ansi_1.italic)(`If you want to exit, press either Ctrl+C twice, or enter ${(0, ansi_1.bold)(':quit')}`));
            }
        });
    }
    if (config_1.FlowrConfig.getForEngine(config, 'tree-sitter') && (!defaultOnly || config.defaultEngine === 'tree-sitter')) {
        await tree_sitter_executor_1.TreeSitterExecutor.initTreeSitter(config_1.FlowrConfig.getForEngine(config, 'tree-sitter'));
        engines['tree-sitter'] = new tree_sitter_executor_1.TreeSitterExecutor();
    }
    let defaultEngine = config.defaultEngine;
    if (!defaultEngine || !engines[defaultEngine]) {
        // if a default engine isn't specified, we just take the first one we have
        defaultEngine = Object.keys(engines)[0];
    }
    log_1.log.info(`Using engines ${Object.keys(engines).join(', ')} with default ${defaultEngine}`);
    return { engines, default: defaultEngine };
}
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