"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const testcafe_hammerhead_1 = __importDefault(require("testcafe-hammerhead"));
const asyncToGenerator_1 = __importDefault(require("@babel/runtime/helpers/asyncToGenerator"));
const lodash_1 = require("lodash");
const load_libs_1 = __importDefault(require("./babel/load-libs"));
const runtime_1 = require("../errors/runtime");
const types_1 = require("../errors/types");
const format_babel_produced_code_1 = __importDefault(require("./babel/format-babel-produced-code"));
const get_base_babel_options_1 = __importDefault(require("./babel/get-base-babel-options"));
const ANONYMOUS_FN_RE = /^function\s*\*?\s*\(/;
const ES6_OBJ_METHOD_NAME_RE = /^(\S+?)\s*\(/;
const USE_STRICT_RE = /^('|")use strict('|");?/;
const TRAILING_SEMICOLON_RE = /;\s*$/;
const REGENERATOR_FOOTPRINTS_RE = /(_index\d+\.default|_regenerator\d+\.default|regeneratorRuntime)(\(\))?\.wrap\(function func\$\(_context\)/;
const ASYNC_TO_GENERATOR_OUTPUT_CODE = (0, format_babel_produced_code_1.default)((0, asyncToGenerator_1.default)(lodash_1.noop).toString());
const CLIENT_FUNCTION_BODY_WRAPPER = code => `const func = (${code});`;
const CLIENT_FUNCTION_WRAPPER = ({ code, dependencies }) => `(function(){${dependencies} ${code} return func;})();`;
let loadedBabelOptions = null;
function getBabelOptions() {
    const { presetEnvForClientFunction, transformForOfAsArray } = (0, load_libs_1.default)();
    return Object.assign({}, get_base_babel_options_1.default, {
        presets: [{ plugins: [transformForOfAsArray] }, presetEnvForClientFunction],
    });
}
function ensureLoadedBabelOptions() {
    if (!loadedBabelOptions) {
        const { babel } = (0, load_libs_1.default)();
        const opts = getBabelOptions();
        loadedBabelOptions = babel.loadOptions(opts);
    }
    return loadedBabelOptions;
}
function downgradeES(fnCode) {
    const { babel } = (0, load_libs_1.default)();
    const opts = ensureLoadedBabelOptions();
    const compiled = babel.transform(fnCode, opts);
    return compiled.code
        .replace(USE_STRICT_RE, '')
        .trim();
}
function getDependenciesDefinition(dependencies) {
    return Object
        .keys(dependencies)
        .reduce((code, name) => {
        return code + `var ${name}=__dependencies$['${name}'];`;
    }, '');
}
function makeFnCodeSuitableForParsing(fnCode) {
    // NOTE: 'function() {}' -> '(function() {})'
    if (ANONYMOUS_FN_RE.test(fnCode))
        return `(${fnCode})`;
    // NOTE: 'myFn () {}' -> 'function myFn() {}'
    const match = fnCode.match(ES6_OBJ_METHOD_NAME_RE);
    if (match && match[1] !== 'function')
        return `function ${fnCode}`;
    return fnCode;
}
function containsAsyncToGeneratorOutputCode(code) {
    const formattedCode = (0, format_babel_produced_code_1.default)(code);
    return formattedCode.includes(ASYNC_TO_GENERATOR_OUTPUT_CODE);
}
function compileClientFunction(fnCode, dependencies, instantiationCallsiteName, compilationCallsiteName) {
    if (containsAsyncToGeneratorOutputCode(fnCode))
        throw new runtime_1.ClientFunctionAPIError(compilationCallsiteName, instantiationCallsiteName, types_1.RUNTIME_ERRORS.regeneratorInClientFunctionCode);
    fnCode = makeFnCodeSuitableForParsing(fnCode);
    fnCode = CLIENT_FUNCTION_BODY_WRAPPER(fnCode);
    // NOTE: we need to recompile ES6 code for the browser if we are on newer versions of Node.
    fnCode = downgradeES(fnCode);
    fnCode = testcafe_hammerhead_1.default.processScript(fnCode, false);
    // NOTE: check compiled code for regenerator injection
    if (REGENERATOR_FOOTPRINTS_RE.test(fnCode))
        throw new runtime_1.ClientFunctionAPIError(compilationCallsiteName, instantiationCallsiteName, types_1.RUNTIME_ERRORS.regeneratorInClientFunctionCode);
    if (!TRAILING_SEMICOLON_RE.test(fnCode))
        fnCode += ';';
    const dependenciesDefinition = dependencies ? getDependenciesDefinition(dependencies) : '';
    return CLIENT_FUNCTION_WRAPPER({ code: fnCode, dependencies: dependenciesDefinition });
}
exports.default = compileClientFunction;
module.exports = exports.default;
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hammerhead from 'testcafe-hammerhead';\nimport asyncToGenerator from '@babel/runtime/helpers/asyncToGenerator';\nimport { noop } from 'lodash';\nimport loadBabelLibs from './babel/load-libs';\nimport { ClientFunctionAPIError } from '../errors/runtime';\nimport { RUNTIME_ERRORS } from '../errors/types';\nimport formatBabelProducedCode from './babel/format-babel-produced-code';\nimport BASE_BABEL_OPTIONS from './babel/get-base-babel-options';\n\nconst ANONYMOUS_FN_RE                = /^function\\s*\\*?\\s*\\(/;\nconst ES6_OBJ_METHOD_NAME_RE         = /^(\\S+?)\\s*\\(/;\nconst USE_STRICT_RE                  = /^('|\")use strict('|\");?/;\nconst TRAILING_SEMICOLON_RE          = /;\\s*$/;\nconst REGENERATOR_FOOTPRINTS_RE      = /(_index\\d+\\.default|_regenerator\\d+\\.default|regeneratorRuntime)(\\(\\))?\\.wrap\\(function func\\$\\(_context\\)/;\nconst ASYNC_TO_GENERATOR_OUTPUT_CODE = formatBabelProducedCode(asyncToGenerator(noop).toString());\n\nconst CLIENT_FUNCTION_BODY_WRAPPER = code => `const func = (${code});`;\nconst CLIENT_FUNCTION_WRAPPER      = ({ code, dependencies }) => `(function(){${dependencies} ${code} return func;})();`;\n\nlet loadedBabelOptions = null;\n\nfunction getBabelOptions () {\n    const { presetEnvForClientFunction, transformForOfAsArray } = loadBabelLibs();\n\n    return Object.assign({}, BASE_BABEL_OPTIONS, {\n        presets: [{ plugins: [transformForOfAsArray] }, presetEnvForClientFunction],\n    });\n}\n\nfunction ensureLoadedBabelOptions () {\n    if (!loadedBabelOptions) {\n        const { babel } = loadBabelLibs();\n        const opts      = getBabelOptions();\n\n        loadedBabelOptions = babel.loadOptions(opts);\n    }\n\n    return loadedBabelOptions;\n}\n\nfunction downgradeES (fnCode) {\n    const { babel } = loadBabelLibs();\n    const opts      = ensureLoadedBabelOptions();\n    const compiled  = babel.transform(fnCode, opts);\n\n    return compiled.code\n        .replace(USE_STRICT_RE, '')\n        .trim();\n}\n\nfunction getDependenciesDefinition (dependencies) {\n    return Object\n        .keys(dependencies)\n        .reduce((code, name) => {\n            return code + `var ${name}=__dependencies$['${name}'];`;\n        }, '');\n}\n\nfunction makeFnCodeSuitableForParsing (fnCode) {\n    // NOTE: 'function() {}' -> '(function() {})'\n    if (ANONYMOUS_FN_RE.test(fnCode))\n        return `(${fnCode})`;\n\n    // NOTE: 'myFn () {}' -> 'function myFn() {}'\n    const match = fnCode.match(ES6_OBJ_METHOD_NAME_RE);\n\n    if (match && match[1] !== 'function')\n        return `function ${fnCode}`;\n\n    return fnCode;\n}\n\nfunction containsAsyncToGeneratorOutputCode (code) {\n    const formattedCode = formatBabelProducedCode(code);\n\n    return formattedCode.includes(ASYNC_TO_GENERATOR_OUTPUT_CODE);\n}\n\nexport default function compileClientFunction (fnCode, dependencies, instantiationCallsiteName, compilationCallsiteName) {\n    if (containsAsyncToGeneratorOutputCode(fnCode))\n        throw new ClientFunctionAPIError(compilationCallsiteName, instantiationCallsiteName, RUNTIME_ERRORS.regeneratorInClientFunctionCode);\n\n    fnCode = makeFnCodeSuitableForParsing(fnCode);\n\n\n    fnCode = CLIENT_FUNCTION_BODY_WRAPPER(fnCode);\n\n    // NOTE: we need to recompile ES6 code for the browser if we are on newer versions of Node.\n    fnCode = downgradeES(fnCode);\n    fnCode = hammerhead.processScript(fnCode, false);\n\n    // NOTE: check compiled code for regenerator injection\n    if (REGENERATOR_FOOTPRINTS_RE.test(fnCode))\n        throw new ClientFunctionAPIError(compilationCallsiteName, instantiationCallsiteName, RUNTIME_ERRORS.regeneratorInClientFunctionCode);\n\n    if (!TRAILING_SEMICOLON_RE.test(fnCode))\n        fnCode += ';';\n\n    const dependenciesDefinition = dependencies ? getDependenciesDefinition(dependencies) : '';\n\n    return CLIENT_FUNCTION_WRAPPER({ code: fnCode, dependencies: dependenciesDefinition });\n}\n"]}