1 | ;
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2 | var __importDefault = (this && this.__importDefault) || function (mod) {
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3 | return (mod && mod.__esModule) ? mod : { "default": mod };
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4 | };
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5 | Object.defineProperty(exports, "__esModule", { value: true });
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6 | const testcafe_hammerhead_1 = __importDefault(require("testcafe-hammerhead"));
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7 | const asyncToGenerator_1 = __importDefault(require("babel-runtime/helpers/asyncToGenerator"));
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8 | const lodash_1 = require("lodash");
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9 | const load_babel_libs_1 = __importDefault(require("./load-babel-libs"));
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10 | const runtime_1 = require("../errors/runtime");
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11 | const types_1 = require("../errors/types");
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12 | const ANONYMOUS_FN_RE = /^function\s*\*?\s*\(/;
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13 | const ES6_OBJ_METHOD_NAME_RE = /^(\S+?)\s*\(/;
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14 | const USE_STRICT_RE = /^('|")use strict('|");?/;
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15 | const TRAILING_SEMICOLON_RE = /;\s*$/;
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16 | const REGENERATOR_FOOTPRINTS_RE = /(_index\d+\.default|_regenerator\d+\.default|regeneratorRuntime)\.wrap\(function _callee\$\(_context\)/;
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17 | const ASYNC_TO_GENERATOR_OUTPUT_CODE = asyncToGenerator_1.default(lodash_1.noop).toString();
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18 | const babelArtifactPolyfills = {
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19 | 'Promise': {
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20 | re: /_promise(\d+)\.default/,
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21 | getCode: match => `var _promise${match[1]} = { default: Promise };`,
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22 | removeMatchingCode: false
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23 | },
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24 | 'Object.keys()': {
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25 | re: /_keys(\d+)\.default/,
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26 | getCode: match => `var _keys${match[1]} = { default: Object.keys };`,
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27 | removeMatchingCode: false
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28 | },
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29 | 'JSON.stringify()': {
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30 | re: /_stringify(\d+)\.default/,
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31 | getCode: match => `var _stringify${match[1]} = { default: JSON.stringify };`,
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32 | removeMatchingCode: false
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33 | }
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34 | };
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35 | function getBabelOptions() {
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36 | const { presetFallback, transformForOfAsArray } = load_babel_libs_1.default();
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37 | return {
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38 | presets: [{ plugins: [transformForOfAsArray] }, presetFallback],
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39 | sourceMaps: false,
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40 | retainLines: true,
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41 | ast: false,
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42 | babelrc: false,
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43 | highlightCode: false
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44 | };
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45 | }
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46 | function downgradeES(fnCode) {
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47 | const { babel } = load_babel_libs_1.default();
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48 | const opts = getBabelOptions();
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49 | const compiled = babel.transform(fnCode, opts);
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50 | return compiled.code
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51 | .replace(USE_STRICT_RE, '')
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52 | .trim();
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53 | }
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54 | function addBabelArtifactsPolyfills(fnCode, dependenciesDefinition) {
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55 | let modifiedFnCode = fnCode;
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56 | const polyfills = Object
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57 | .values(babelArtifactPolyfills)
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58 | .reduce((polyfillsCode, polyfill) => {
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59 | const match = fnCode.match(polyfill.re);
|
60 | if (match) {
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61 | if (polyfill.removeMatchingCode)
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62 | modifiedFnCode = modifiedFnCode.replace(polyfill.re, '');
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63 | return polyfillsCode + polyfill.getCode(match);
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64 | }
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65 | return polyfillsCode;
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66 | }, '');
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67 | return `(function(){${dependenciesDefinition}${polyfills} return ${modifiedFnCode}})();`;
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68 | }
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69 | function getDependenciesDefinition(dependencies) {
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70 | return Object
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71 | .keys(dependencies)
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72 | .reduce((code, name) => {
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73 | return code + `var ${name}=__dependencies$['${name}'];`;
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74 | }, '');
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75 | }
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76 | function makeFnCodeSuitableForParsing(fnCode) {
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77 | // NOTE: 'function() {}' -> '(function() {})'
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78 | if (ANONYMOUS_FN_RE.test(fnCode))
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79 | return `(${fnCode})`;
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80 | // NOTE: 'myFn () {}' -> 'function myFn() {}'
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81 | const match = fnCode.match(ES6_OBJ_METHOD_NAME_RE);
|
82 | if (match && match[1] !== 'function')
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83 | return `function ${fnCode}`;
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84 | return fnCode;
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85 | }
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86 | function compileClientFunction(fnCode, dependencies, instantiationCallsiteName, compilationCallsiteName) {
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87 | if (fnCode === ASYNC_TO_GENERATOR_OUTPUT_CODE)
|
88 | throw new runtime_1.ClientFunctionAPIError(compilationCallsiteName, instantiationCallsiteName, types_1.RUNTIME_ERRORS.regeneratorInClientFunctionCode);
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89 | fnCode = makeFnCodeSuitableForParsing(fnCode);
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90 | // NOTE: we need to recompile ES6 code for the browser if we are on newer versions of Node.
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91 | fnCode = downgradeES(fnCode);
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92 | fnCode = testcafe_hammerhead_1.default.processScript(fnCode, false);
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93 | // NOTE: check compiled code for regenerator injection: we have either generator
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94 | // recompiled in Node.js 4+ for client or async function declared in function code.
|
95 | if (REGENERATOR_FOOTPRINTS_RE.test(fnCode))
|
96 | throw new runtime_1.ClientFunctionAPIError(compilationCallsiteName, instantiationCallsiteName, types_1.RUNTIME_ERRORS.regeneratorInClientFunctionCode);
|
97 | if (!TRAILING_SEMICOLON_RE.test(fnCode))
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98 | fnCode += ';';
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99 | const dependenciesDefinition = dependencies ? getDependenciesDefinition(dependencies) : '';
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100 | return addBabelArtifactsPolyfills(fnCode, dependenciesDefinition);
|
101 | }
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102 | exports.default = compileClientFunction;
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103 | module.exports = exports.default;
|
104 | //# 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hammerhead from 'testcafe-hammerhead';\nimport asyncToGenerator from 'babel-runtime/helpers/asyncToGenerator';\nimport { noop } from 'lodash';\nimport loadBabelLibs from './load-babel-libs';\nimport { ClientFunctionAPIError } from '../errors/runtime';\nimport { RUNTIME_ERRORS } from '../errors/types';\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 _callee\\$\\(_context\\)/;\nconst ASYNC_TO_GENERATOR_OUTPUT_CODE = asyncToGenerator(noop).toString();\n\nconst babelArtifactPolyfills = {\n    'Promise': {\n        re:                 /_promise(\\d+)\\.default/,\n        getCode:            match => `var _promise${match[1]} = { default: Promise };`,\n        removeMatchingCode: false\n    },\n\n    'Object.keys()': {\n        re:                 /_keys(\\d+)\\.default/,\n        getCode:            match => `var _keys${match[1]} = { default: Object.keys };`,\n        removeMatchingCode: false\n    },\n\n    'JSON.stringify()': {\n        re:                 /_stringify(\\d+)\\.default/,\n        getCode:            match => `var _stringify${match[1]} = { default: JSON.stringify };`,\n        removeMatchingCode: false\n    }\n};\n\n\nfunction getBabelOptions () {\n    const { presetFallback, transformForOfAsArray } = loadBabelLibs();\n\n    return {\n        presets:       [{ plugins: [transformForOfAsArray] }, presetFallback],\n        sourceMaps:    false,\n        retainLines:   true,\n        ast:           false,\n        babelrc:       false,\n        highlightCode: false\n    };\n}\n\nfunction downgradeES (fnCode) {\n    const { babel } = loadBabelLibs();\n\n    const opts     = getBabelOptions();\n    const compiled = babel.transform(fnCode, opts);\n\n    return compiled.code\n        .replace(USE_STRICT_RE, '')\n        .trim();\n}\n\nfunction addBabelArtifactsPolyfills (fnCode, dependenciesDefinition) {\n    let modifiedFnCode = fnCode;\n\n    const polyfills = Object\n        .values(babelArtifactPolyfills)\n        .reduce((polyfillsCode, polyfill) => {\n            const match = fnCode.match(polyfill.re);\n\n            if (match) {\n                if (polyfill.removeMatchingCode)\n                    modifiedFnCode = modifiedFnCode.replace(polyfill.re, '');\n\n                return polyfillsCode + polyfill.getCode(match);\n            }\n\n            return polyfillsCode;\n        }, '');\n\n    return `(function(){${dependenciesDefinition}${polyfills} return ${modifiedFnCode}})();`;\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\nexport default function compileClientFunction (fnCode, dependencies, instantiationCallsiteName, compilationCallsiteName) {\n    if (fnCode === ASYNC_TO_GENERATOR_OUTPUT_CODE)\n        throw new ClientFunctionAPIError(compilationCallsiteName, instantiationCallsiteName, RUNTIME_ERRORS.regeneratorInClientFunctionCode);\n\n    fnCode = makeFnCodeSuitableForParsing(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: we have either generator\n    // recompiled in Node.js 4+ for client or async function declared in function code.\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 addBabelArtifactsPolyfills(fnCode, dependenciesDefinition);\n}\n"]} |
\ | No newline at end of file |