js-slang/dist/modules/loader/requireProvider.js

Javascript-based implementations of Source, written in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getRequireProvider = void 0;
const _ = require("lodash");
const jsslang = require("../..");
const interpreter = require("../../cse-machine/interpreter");
const parser = require("../../parser/parser");
const stdlib = require("../../stdlib");
const types = require("../../types");
const assert = require("../../utils/assert");
const stringify = require("../../utils/stringify");
/**
 * Returns a function that simulates the job of Node's `require`. The require
 * provider is then used by Source modules to access the context and js-slang standard
 * library
 */
const getRequireProvider = (context) => (x) => {
    const pathSegments = x.split('/');
    const recurser = (obj, segments) => {
        if (segments.length === 0)
            return obj;
        const currObj = obj[segments[0]];
        if (currObj !== undefined)
            return recurser(currObj, segments.splice(1));
        throw new Error(`Dynamic require of ${x} is not supported`);
    };
    const exports = {
        'js-slang': {
            ...jsslang,
            dist: {
                stdlib,
                types,
                utils: {
                    assert,
                    stringify
                },
                parser: {
                    parser
                },
                'cse-machine': {
                    interpreter
                }
            },
            context
        },
        lodash: _
    };
    return recurser(exports, pathSegments);
};
exports.getRequireProvider = getRequireProvider;
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