"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.evaluate = void 0;
const vm = require("vm");
const isBuffer = Buffer.isBuffer;
const requireLike = require("require-like");
function merge(a, b) {
    if (!a || !b)
        return a;
    var keys = Object.keys(b);
    for (var k, i = 0, n = keys.length; i < n; i++) {
        k = keys[i];
        a[k] = b[k];
    }
    return a;
}
// Return the exports/module.exports variable set in the content
// content (String|VmScript): required
const evaluate = (content, filename, scope, includeGlobals) => {
    if (typeof filename !== 'string') {
        if (typeof filename === 'object') {
            includeGlobals = scope;
            scope = filename;
            filename = '';
        }
        else if (typeof filename === 'boolean') {
            includeGlobals = filename;
            scope = {};
            filename = '';
        }
    }
    // Expose standard Node globals
    let sandbox = {};
    let exports = {};
    let _filename = filename || module.parent.filename;
    if (includeGlobals) {
        merge(sandbox, global);
        // console is non-enumerable in node v10 and above
        sandbox.console = global.console;
        // process is non-enumerable in node v12 and above
        sandbox.process = global.process;
        sandbox.URL = global.URL;
        sandbox.require = requireLike(_filename);
    }
    if (typeof scope === 'object') {
        merge(sandbox, scope);
    }
    sandbox.exports = exports;
    sandbox.module = {
        exports: exports,
        filename: _filename,
        id: _filename,
        parent: module.parent,
        require: sandbox.require || requireLike(_filename)
    };
    sandbox.global = sandbox;
    var options = {
        filename: filename,
        displayErrors: false
    };
    if (isBuffer(content)) {
        content = content.toString();
    }
    // Evaluate the content with the given scope
    if (typeof content === 'string') {
        var stringScript = content.replace(/^\#\!.*/, '');
        var script = new vm.Script(stringScript, options);
        script.runInNewContext(sandbox, options);
    }
    else {
        content.runInNewContext(sandbox, options);
    }
    return sandbox.module.exports;
};
exports.evaluate = evaluate;
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