@tsukiroku/tiny/dist/tiny/cli/repl.js

Tiny interpreter

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const prompt_sync_1 = __importDefault(require("prompt-sync"));
const colors_1 = __importDefault(require("colors"));
const Tiny = __importStar(require("../../index"));
const defaultFilename = '<REPL>';
class default_1 {
    env;
    option;
    promptSync = (0, prompt_sync_1.default)({ sigint: true });
    mode = 'repl';
    constructor(env, option) {
        this.env = env;
        this.option = option;
        colors_1.default.enabled = true;
    }
    executeCommand(input, lexer, parsed, env) {
        const [command, ...args] = input.split(' ');
        const commands = new Map([
            [
                '//mode',
                (...args) => {
                    if (!['repl', 'parser', 'lexer', 'env'].includes(args[0]) || args.length <= 0)
                        return 'Invalid mode. valid modes are `repl`, `parser`, `lexer`, and `env`';
                    this.mode = args[0];
                    return `Switched to '${this.mode}' mode`;
                },
            ],
            ['//exit', () => process.exit(0)],
        ]);
        if (commands.has(command))
            return commands.get(command)(...args);
        else {
            const result = new Tiny.Evaluator(parsed, env, {
                ...this.option,
                stdio: {
                    stdin: this.promptSync,
                    stdout: Tiny.stdout,
                    stderr: Tiny.stderr,
                },
                filename: defaultFilename,
                root: './',
            }).eval();
            switch (this.mode) {
                case 'repl':
                    return Tiny.objectStringify(result).gray;
                case 'parser':
                    return JSON.stringify(parsed, null, 2);
                case 'lexer':
                    const tokens = [];
                    let peekToken;
                    while ((peekToken = lexer.nextToken()).type !== Tiny.TokenType.EOF)
                        tokens.push(peekToken);
                    return tokens;
                case 'env':
                    return env;
            }
        }
    }
    start() {
        if (this.option.useStdLibAutomatically)
            new Tiny.Evaluator(new Tiny.Parser(new Tiny.Lexer(`import('@std/lib');`, {
                ...this.option,
                stderr: Tiny.stderr,
            }, defaultFilename), this.option).parseProgram(), this.env, {
                ...this.option,
                stdio: {
                    stdin: this.promptSync,
                    stdout: Tiny.stdout,
                    stderr: Tiny.stderr,
                },
                filename: defaultFilename,
                root: './',
            }).eval();
        while (true) {
            const input = this.promptSync(`${`[${this.mode.toUpperCase()}]`.white.bgBlack} ${`${this.env.store.size} Env(s)`.gray} ${'➜'.red} `);
            const parser = new Tiny.Parser(new Tiny.Lexer(input, {
                ...this.option,
                stderr: Tiny.stderr,
            }, defaultFilename), this.option);
            const executed = this.executeCommand(input, new Tiny.Lexer(input, {
                ...this.option,
                stderr: Tiny.stderr,
            }, defaultFilename), parser.parseProgram(), this.env);
            if (executed && parser.errors.length > 0)
                parser.errors.forEach((error) => Tiny.printError(error, defaultFilename, Tiny.stderr, this.option));
            console.log(executed, '\n');
        }
    }
}
exports.default = default_1;