All files / lib/internal/modules/cjs loader.js

93.93% Statements 1209/1287
93% Branches 319/343
92% Functions 46/50
93.93% Lines 1209/1287

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 176725x 176725x 176725x 127545x 127545x 127545x 148855x 176725x 43742x 43742x 43742x 148855x 176725x 167x 117089x 117089x 117089x 117089x 117089x 167x 167x 43825x 43825x 43825x 43825x 43825x 43825x 43825x 43825x 43825x 43825x 167x 167x 167x 48263x 15222x 15222x 48263x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 6x 167x 167x 167x 167x 167x 167x 167x 167x 167x 1x 1x 167x 167x 167x 1x 1x 1x 167x 167x 167x 167x 6x 167x 167x 167x       167x 167x 167x 167x 15x 167x 167x 167x 6x 6x 6x 167x 167x 167x 167x 167x 167x 13x 13x 13x 167x 1x 1x 1x 167x 167x 167x         167x 167x         167x 167x 167x 167x 5331x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 420325x 420325x 420325x 420325x 420325x 51336x 51336x 420325x 420325x 45997x 45997x 45997x 5339x 5339x 5339x 5339x 5339x 5339x 5339x 5339x 5339x 5339x 5339x 5339x 420325x 1x 1x 1x 1x 420325x 167x 90140x 90140x 90140x 90140x 400471x 400471x 400471x 400471x 400471x 400471x 54571x 54571x 54571x 90140x 35497x 90140x 167x 11125x 11125x 11125x 11125x 6309x 6309x 11120x 11120x 11124x 11125x 11125x 11125x 4x 4x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 4x 6742x 11125x 167x 167x 167x 167x 167x 167x 167x 167x 167x 167x 74773x 74773x 74773x 74773x 34x 34x 74638x 74773x 167x 54219x 54219x 54219x 54219x 54219x 167x 167x 43028x 43028x 69274x 69274x 69274x 30078x 30078x 69274x 12950x 43028x 167x 167x 167x 42243x 42243x 42243x 42243x 42243x 42243x 42340x 42340x 42338x 42338x 42340x 42243x 42243x 167x 53339x 53339x 53298x 53320x 48472x 53339x 65x 65x 65x 1x 1x 65x 53339x 167x 53339x 53339x 48536x 53339x 53339x 11846x 11846x 11846x 11846x 4x 11846x 4x 9012x 9012x 9012x 8x 8x 8x 8x 8x 135x 2x 2x 2x 2x 53339x 167x 167x 167x 167x 167x 41299x 41299x 41299x 41299x 41299x 41299x 41290x 41290x 41299x 721x 721x 721x 721x 721x 70x 70x 70x 70x 721x 41299x 167x 167x 167x 58144x 58144x 14899x 52243x 1x 1x 58144x 58144x 58144x 58144x 58144x 57975x 57975x 57975x 57975x 58144x 58144x 49419x 49419x 49612x 49612x 53467x 61374x 61374x 61374x 61365x 61373x 41299x 41299x 41299x 41299x 61374x 61374x 61374x 61374x 61374x 61374x 50454x 14132x 9347x 5x 9347x 9342x 9342x 14132x 7x 7x 7x 7x 7x 7x 7x 7x 7x 4785x 4778x 4778x 14132x 50454x 50454x 36322x 36322x 36322x 36322x 36322x 50454x 61374x 61374x 11125x 11125x 11125x 11125x 11125x 61374x 61374x 48813x 48813x 48813x 61374x 75x 75x 167x 167x 167x 167x 167x 167x                                                                                           167x 167x 167x 43207x 43207x 43207x 43207x 43207x 43207x 43207x 43207x 43207x 43207x 43207x 43207x 3912039x 3912039x 370307x 370307x 344933x 344933x 344933x 370307x 370307x 3912039x 748266x 403333x 748266x 344933x 344933x 748266x 3912039x 43207x 43207x 43207x 43207x 43207x 167x 167x 167x 167x 53718x 66x 66x 66x 53718x 53718x 53718x 36018x 36018x 36018x 53718x 17636x 17636x 17636x 12867x 12867x 17636x 17636x 17636x 17636x 36016x 36016x 53718x 20x 20x 20x 20x 20x 20x 20x 35996x 35996x 35996x 35996x 35996x 35996x 167x 167x 4x 4x 4x 4x 4x 4x 167x 167x 167x 167x 167x 5x 5x 5x 5x 5x 5x 167x 167x 167x           167x 167x 208x 208x 208x 208x 9x 9x 9x 9x 208x 8x 8x 8x 8x 208x 208x 208x 167x 167x 167x 167x 167x 167x 167x 167x 167x 195236x 195236x 190499x 190499x 190499x 190499x 190499x 190499x 190499x 62368x 62368x 62360x 62360x 62360x 62360x 62360x 62368x 62368x 190499x 195236x 195236x 195236x 4x 4x 4x 4x 4x 2x 2x 2x 2x 2x 132759x 132759x 195225x 10904x 10904x 271x 271x 271x 69x 10904x 10633x 10633x 10904x 195225x 195225x 195236x 42243x 42243x 195236x 195236x 195236x 4657x 4657x 4657x 42243x 42243x 42853x 42175x 42175x 42243x 42243x 42243x 42243x 42243x 44415x 42120x 196x 196x 191x 191x 191x 62x 62x 62x 62x 62x 191x 42119x 41924x 37580x 41924x 4x 4x 42120x 41924x 41924x 167x 167x 167x 133050x 133050x 79689x 79689x 132995x 132995x 132995x 133050x 10x 8x 8x 6x 8x 8x 8x 2x 8x 6x 6x 6x 6x 6x 26x 26x 26x 26x 26x 220x 220x 220x 26x 6x 10x 1x 1x 1x 1x 129825x 53351x 53351x 53360x 133050x 48493x 22x 22x 21x 21x 21x 21x 21x 21x 15x 15x 15x 15x 21x 22x 48493x 129825x 129825x 129825x 129825x 129825x 6x 6x 6x 6x 6x 129825x 129825x 129825x 129825x 59x 59x 59x 1332x 56x 56x 1694x 1694x 44x 44x 44x 1694x 1694x 1694x 1694x 1694x 167x 167x 692x 692x 692x 8x 692x 692x 692x 692x 692x 692x 692x 692x 167x 21x 21x 21x 21x 21x 21x 21x 21x 21x 167x 167x 167x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 42243x 167x 167x 167x 167x 167x 167x 190506x 190506x 1x 1x 1x 190500x 190500x 190500x 190500x 190494x 190494x 167x 167x 167x 167x 167x 167x 167x 167x 37607x 37607x 6x 6x 6x 6x 6x 6x       6x 6x 6x 37601x 37601x 37601x 37601x 37601x 37601x 37601x 37601x 37601x 37601x 98x 98x 98x 37601x 37601x 37607x 28x 28x 28x 28x 37607x 167x 167x 167x 167x 167x 167x 37585x 37585x 37585x 30x 30x 30x 30x 37585x 37585x 37585x 37585x 37585x 37585x 8x 4x 4x 4x 4x 4x         4x     4x 8x 8x 8x 4x 4x 4x 8x 37570x 37570x 37570x 37570x 37570x 37570x 37570x 37570x 4x 4x 37570x 37559x 37559x 37559x 37300x 37567x 37300x 167x 167x 167x 167x 37067x 37067x 37067x 37067x 67x 67x 37062x 37000x 37000x 37067x 36932x 36932x 36932x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x     3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 36932x 37064x 167x 167x 167x 167x 167x 5000x 5000x 5000x       5000x 5000x 5000x 5000x 14x 14x 14x 167x 167x 167x 167x 167x 169x 2x 2x 2x 2x 169x 169x 167x 167x 132x 132x 132x 132x 132x 132x 132x 132x 132x 132x 132x 132x 132x 132x 132x 132x 167x 167x 167x 167x 135x 135x 135x 135x 135x 115x 115x 115x 2x 2x 2x 135x 1x 20x 19x 19x 135x 135x 167x 167x 167x 167x 5483x 5483x 5483x 5483x 5483x 5483x 5483x 5483x 5483x 5483x 5483x 5483x 5482x 5482x 5482x 5483x 5483x 4x 4x 4x 4x 4x 5483x 5483x 5483x 5483x 5483x 167x 167x 167x 49x 49x 49x 49x 49x 49x 49x 49x 49x 49x 49x 49x 1x       1x 49x 49x 49x 167x 167x 167x 14x 4046x 924x 924x 4046x 167x 167x 167x 167x  
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
'use strict';
 
const {
  ArrayIsArray,
  ArrayPrototypeConcat,
  ArrayPrototypeFilter,
  ArrayPrototypeIncludes,
  ArrayPrototypeIndexOf,
  ArrayPrototypeJoin,
  ArrayPrototypePush,
  ArrayPrototypeSlice,
  ArrayPrototypeSplice,
  ArrayPrototypeUnshift,
  ArrayPrototypeUnshiftApply,
  Boolean,
  Error,
  JSONParse,
  ObjectCreate,
  ObjectDefineProperty,
  ObjectFreeze,
  ObjectGetOwnPropertyDescriptor,
  ObjectGetPrototypeOf,
  ObjectKeys,
  ObjectPrototype,
  ObjectPrototypeHasOwnProperty,
  ObjectSetPrototypeOf,
  Proxy,
  ReflectApply,
  ReflectSet,
  RegExpPrototypeExec,
  RegExpPrototypeTest,
  SafeMap,
  SafeWeakMap,
  String,
  StringPrototypeCharAt,
  StringPrototypeCharCodeAt,
  StringPrototypeEndsWith,
  StringPrototypeLastIndexOf,
  StringPrototypeIndexOf,
  StringPrototypeMatch,
  StringPrototypeRepeat,
  StringPrototypeSlice,
  StringPrototypeSplit,
  StringPrototypeStartsWith,
} = primordials;
 
// Map used to store CJS parsing data.
const cjsParseCache = new SafeWeakMap();
 
// Set first due to cycle with ESM loader functions.
module.exports = {
  wrapSafe, Module, toRealPath, readPackageScope, cjsParseCache,
  get hasLoadedAnyUserCJSModule() { return hasLoadedAnyUserCJSModule; }
};
 
const { NativeModule } = require('internal/bootstrap/loaders');
const {
  maybeCacheSourceMap,
} = require('internal/source_map/source_map_cache');
const { pathToFileURL, fileURLToPath, isURLInstance } = require('internal/url');
const { deprecate } = require('internal/util');
const vm = require('vm');
const assert = require('internal/assert');
const fs = require('fs');
const internalFS = require('internal/fs/utils');
const path = require('path');
const { sep } = path;
const { internalModuleStat } = internalBinding('fs');
const packageJsonReader = require('internal/modules/package_json_reader');
const { safeGetenv } = internalBinding('credentials');
const {
  cjsConditions,
  hasEsmSyntax,
  loadNativeModule,
  makeRequireFunction,
  normalizeReferrerURL,
  stripBOM,
} = require('internal/modules/cjs/helpers');
const { getOptionValue } = require('internal/options');
const preserveSymlinks = getOptionValue('--preserve-symlinks');
const preserveSymlinksMain = getOptionValue('--preserve-symlinks-main');
// Do not eagerly grab .manifest, it may be in TDZ
const policy = getOptionValue('--experimental-policy') ?
  require('internal/process/policy') :
  null;
 
// Whether any user-provided CJS modules had been loaded (executed).
// Used for internal assertions.
let hasLoadedAnyUserCJSModule = false;
 
const {
  codes: {
    ERR_INVALID_ARG_VALUE,
    ERR_INVALID_MODULE_SPECIFIER,
    ERR_REQUIRE_ESM,
    ERR_UNKNOWN_BUILTIN_MODULE,
  },
  setArrowMessage,
} = require('internal/errors');
const { validateString } = require('internal/validators');
const pendingDeprecation = getOptionValue('--pending-deprecation');
 
const {
  CHAR_FORWARD_SLASH,
  CHAR_BACKWARD_SLASH,
  CHAR_COLON
} = require('internal/constants');
 
const {
  isProxy
} = require('internal/util/types');
 
const asyncESM = require('internal/process/esm_loader');
const { enrichCJSError } = require('internal/modules/esm/translators');
const { kEvaluated } = internalBinding('module_wrap');
const {
  encodedSepRegEx,
  packageExportsResolve,
  packageImportsResolve
} = require('internal/modules/esm/resolve');
 
const isWindows = process.platform === 'win32';
 
const relativeResolveCache = ObjectCreate(null);
 
let requireDepth = 0;
let statCache = null;
let isPreloading = false;
 
function stat(filename) {
  filename = path.toNamespacedPath(filename);
  if (statCache !== null) {
    const result = statCache.get(filename);
    if (result !== undefined) return result;
  }
  const result = internalModuleStat(filename);
  if (statCache !== null && result >= 0) {
    // Only set cache when `internalModuleStat(filename)` succeeds.
    statCache.set(filename, result);
  }
  return result;
}
 
function updateChildren(parent, child, scan) {
  const children = parent?.children;
  if (children && !(scan && ArrayPrototypeIncludes(children, child)))
    ArrayPrototypePush(children, child);
}
 
const moduleParentCache = new SafeWeakMap();
function Module(id = '', parent) {
  this.id = id;
  this.path = path.dirname(id);
  this.exports = {};
  moduleParentCache.set(this, parent);
  updateChildren(parent, this, false);
  this.filename = null;
  this.loaded = false;
  this.children = [];
}
 
const builtinModules = [];
for (const { 0: id, 1: mod } of NativeModule.map) {
  if (mod.canBeRequiredByUsers) {
    ArrayPrototypePush(builtinModules, id);
  }
}
 
ObjectFreeze(builtinModules);
Module.builtinModules = builtinModules;
 
Module._cache = ObjectCreate(null);
Module._pathCache = ObjectCreate(null);
Module._extensions = ObjectCreate(null);
let modulePaths = [];
Module.globalPaths = [];
 
let patched = false;
 
// eslint-disable-next-line func-style
let wrap = function(script) {
  return Module.wrapper[0] + script + Module.wrapper[1];
};
 
const wrapper = [
  '(function (exports, require, module, __filename, __dirname) { ',
  '\n});',
];
 
let wrapperProxy = new Proxy(wrapper, {
  set(target, property, value, receiver) {
    patched = true;
    return ReflectSet(target, property, value, receiver);
  },
 
  defineProperty(target, property, descriptor) {
    patched = true;
    return ObjectDefineProperty(target, property, descriptor);
  }
});
 
ObjectDefineProperty(Module, 'wrap', {
  get() {
    return wrap;
  },
 
  set(value) {
    patched = true;
    wrap = value;
  }
});
 
ObjectDefineProperty(Module, 'wrapper', {
  get() {
    return wrapperProxy;
  },
 
  set(value) {
    patched = true;
    wrapperProxy = value;
  }
});
 
const isPreloadingDesc = { get() { return isPreloading; } };
ObjectDefineProperty(Module.prototype, 'isPreloading', isPreloadingDesc);
ObjectDefineProperty(NativeModule.prototype, 'isPreloading', isPreloadingDesc);
 
function getModuleParent() {
  return moduleParentCache.get(this);
}
 
function setModuleParent(value) {
  moduleParentCache.set(this, value);
}
 
ObjectDefineProperty(Module.prototype, 'parent', {
  get: pendingDeprecation ? deprecate(
    getModuleParent,
    'module.parent is deprecated due to accuracy issues. Please use ' +
      'require.main to find program entry point instead.',
    'DEP0144'
  ) : getModuleParent,
  set: pendingDeprecation ? deprecate(
    setModuleParent,
    'module.parent is deprecated due to accuracy issues. Please use ' +
      'require.main to find program entry point instead.',
    'DEP0144'
  ) : setModuleParent,
});
 
let debug = require('internal/util/debuglog').debuglog('module', (fn) => {
  debug = fn;
});
Module._debug = deprecate(debug, 'Module._debug is deprecated.', 'DEP0077');
 
// Given a module name, and a list of paths to test, returns the first
// matching file in the following precedence.
//
// require("a.<ext>")
//   -> a.<ext>
//
// require("a")
//   -> a
//   -> a.<ext>
//   -> a/index.<ext>
 
const packageJsonCache = new SafeMap();
 
function readPackage(requestPath) {
  const jsonPath = path.resolve(requestPath, 'package.json');
 
  const existing = packageJsonCache.get(jsonPath);
  if (existing !== undefined) return existing;
 
  const result = packageJsonReader.read(jsonPath);
  const json = result.containsKeys === false ? '{}' : result.string;
  if (json === undefined) {
    packageJsonCache.set(jsonPath, false);
    return false;
  }
 
  try {
    const parsed = JSONParse(json);
    const filtered = {
      name: parsed.name,
      main: parsed.main,
      exports: parsed.exports,
      imports: parsed.imports,
      type: parsed.type
    };
    packageJsonCache.set(jsonPath, filtered);
    return filtered;
  } catch (e) {
    e.path = jsonPath;
    e.message = 'Error parsing ' + jsonPath + ': ' + e.message;
    throw e;
  }
}
 
function readPackageScope(checkPath) {
  const rootSeparatorIndex = StringPrototypeIndexOf(checkPath, sep);
  let separatorIndex;
  do {
    separatorIndex = StringPrototypeLastIndexOf(checkPath, sep);
    checkPath = StringPrototypeSlice(checkPath, 0, separatorIndex);
    if (StringPrototypeEndsWith(checkPath, sep + 'node_modules'))
      return false;
    const pjson = readPackage(checkPath + sep);
    if (pjson) return {
      data: pjson,
      path: checkPath,
    };
  } while (separatorIndex > rootSeparatorIndex);
  return false;
}
 
function tryPackage(requestPath, exts, isMain, originalPath) {
  const pkg = readPackage(requestPath)?.main;
 
  if (!pkg) {
    return tryExtensions(path.resolve(requestPath, 'index'), exts, isMain);
  }
 
  const filename = path.resolve(requestPath, pkg);
  let actual = tryFile(filename, isMain) ||
    tryExtensions(filename, exts, isMain) ||
    tryExtensions(path.resolve(filename, 'index'), exts, isMain);
  if (actual === false) {
    actual = tryExtensions(path.resolve(requestPath, 'index'), exts, isMain);
    if (!actual) {
      // eslint-disable-next-line no-restricted-syntax
      const err = new Error(
        `Cannot find module '${filename}'. ` +
        'Please verify that the package.json has a valid "main" entry'
      );
      err.code = 'MODULE_NOT_FOUND';
      err.path = path.resolve(requestPath, 'package.json');
      err.requestPath = originalPath;
      // TODO(BridgeAR): Add the requireStack as well.
      throw err;
    } else {
      const jsonPath = path.resolve(requestPath, 'package.json');
      process.emitWarning(
        `Invalid 'main' field in '${jsonPath}' of '${pkg}'. ` +
          'Please either fix that or report it to the module author',
        'DeprecationWarning',
        'DEP0128'
      );
    }
  }
  return actual;
}
 
// In order to minimize unnecessary lstat() calls,
// this cache is a list of known-real paths.
// Set to an empty Map to reset.
const realpathCache = new SafeMap();
 
// Check if the file exists and is not a directory
// if using --preserve-symlinks and isMain is false,
// keep symlinks intact, otherwise resolve to the
// absolute realpath.
function tryFile(requestPath, isMain) {
  const rc = stat(requestPath);
  if (rc !== 0) return;
  if (preserveSymlinks && !isMain) {
    return path.resolve(requestPath);
  }
  return toRealPath(requestPath);
}
 
function toRealPath(requestPath) {
  return fs.realpathSync(requestPath, {
    [internalFS.realpathCacheKey]: realpathCache
  });
}
 
// Given a path, check if the file exists with any of the set extensions
function tryExtensions(p, exts, isMain) {
  for (let i = 0; i < exts.length; i++) {
    const filename = tryFile(p + exts[i], isMain);
 
    if (filename) {
      return filename;
    }
  }
  return false;
}
 
// Find the longest (possibly multi-dot) extension registered in
// Module._extensions
function findLongestRegisteredExtension(filename) {
  const name = path.basename(filename);
  let currentExtension;
  let index;
  let startIndex = 0;
  while ((index = StringPrototypeIndexOf(name, '.', startIndex)) !== -1) {
    startIndex = index + 1;
    if (index === 0) continue; // Skip dotfiles like .gitignore
    currentExtension = StringPrototypeSlice(name, index);
    if (Module._extensions[currentExtension]) return currentExtension;
  }
  return '.js';
}
 
function trySelfParentPath(parent) {
  if (!parent) return false;
 
  if (parent.filename) {
    return parent.filename;
  } else if (parent.id === '<repl>' || parent.id === 'internal/preload') {
    try {
      return process.cwd() + path.sep;
    } catch {
      return false;
    }
  }
}
 
function trySelf(parentPath, request) {
  if (!parentPath) return false;
 
  const { data: pkg, path: pkgPath } = readPackageScope(parentPath) || {};
  if (!pkg || pkg.exports === undefined) return false;
  if (typeof pkg.name !== 'string') return false;
 
  let expansion;
  if (request === pkg.name) {
    expansion = '.';
  } else if (StringPrototypeStartsWith(request, `${pkg.name}/`)) {
    expansion = '.' + StringPrototypeSlice(request, pkg.name.length);
  } else {
    return false;
  }
 
  try {
    return finalizeEsmResolution(packageExportsResolve(
      pathToFileURL(pkgPath + '/package.json'), expansion, pkg,
      pathToFileURL(parentPath), cjsConditions), parentPath, pkgPath);
  } catch (e) {
    if (e.code === 'ERR_MODULE_NOT_FOUND')
      throw createEsmNotFoundErr(request, pkgPath + '/package.json');
    throw e;
  }
}
 
// This only applies to requests of a specific form:
// 1. name/.*
// 2. @scope/name/.*
const EXPORTS_PATTERN = /^((?:@[^/\\%]+\/)?[^./\\%][^/\\%]*)(\/.*)?$/;
function resolveExports(nmPath, request) {
  // The implementation's behavior is meant to mirror resolution in ESM.
  const { 1: name, 2: expansion = '' } =
    StringPrototypeMatch(request, EXPORTS_PATTERN) || [];
  if (!name)
    return;
  const pkgPath = path.resolve(nmPath, name);
  const pkg = readPackage(pkgPath);
  if (pkg?.exports != null) {
    try {
      return finalizeEsmResolution(packageExportsResolve(
        pathToFileURL(pkgPath + '/package.json'), '.' + expansion, pkg, null,
        cjsConditions), null, pkgPath);
    } catch (e) {
      if (e.code === 'ERR_MODULE_NOT_FOUND')
        throw createEsmNotFoundErr(request, pkgPath + '/package.json');
      throw e;
    }
  }
}
 
const trailingSlashRegex = /(?:^|\/)\.?\.$/;
Module._findPath = function(request, paths, isMain) {
  const absoluteRequest = path.isAbsolute(request);
  if (absoluteRequest) {
    paths = [''];
  } else if (!paths || paths.length === 0) {
    return false;
  }
 
  const cacheKey = request + '\x00' + ArrayPrototypeJoin(paths, '\x00');
  const entry = Module._pathCache[cacheKey];
  if (entry)
    return entry;
 
  let exts;
  let trailingSlash = request.length > 0 &&
    StringPrototypeCharCodeAt(request, request.length - 1) ===
    CHAR_FORWARD_SLASH;
  if (!trailingSlash) {
    trailingSlash = RegExpPrototypeTest(trailingSlashRegex, request);
  }
 
  // For each path
  for (let i = 0; i < paths.length; i++) {
    // Don't search further if path doesn't exist
    const curPath = paths[i];
    if (curPath && stat(curPath) < 1) continue;
 
    if (!absoluteRequest) {
      const exportsResolved = resolveExports(curPath, request);
      if (exportsResolved)
        return exportsResolved;
    }
 
    const basePath = path.resolve(curPath, request);
    let filename;
 
    const rc = stat(basePath);
    if (!trailingSlash) {
      if (rc === 0) {  // File.
        if (!isMain) {
          if (preserveSymlinks) {
            filename = path.resolve(basePath);
          } else {
            filename = toRealPath(basePath);
          }
        } else if (preserveSymlinksMain) {
          // For the main module, we use the preserveSymlinksMain flag instead
          // mainly for backward compatibility, as the preserveSymlinks flag
          // historically has not applied to the main module.  Most likely this
          // was intended to keep .bin/ binaries working, as following those
          // symlinks is usually required for the imports in the corresponding
          // files to resolve; that said, in some use cases following symlinks
          // causes bigger problems which is why the preserveSymlinksMain option
          // is needed.
          filename = path.resolve(basePath);
        } else {
          filename = toRealPath(basePath);
        }
      }
 
      if (!filename) {
        // Try it with each of the extensions
        if (exts === undefined)
          exts = ObjectKeys(Module._extensions);
        filename = tryExtensions(basePath, exts, isMain);
      }
    }
 
    if (!filename && rc === 1) {  // Directory.
      // try it with each of the extensions at "index"
      if (exts === undefined)
        exts = ObjectKeys(Module._extensions);
      filename = tryPackage(basePath, exts, isMain, request);
    }
 
    if (filename) {
      Module._pathCache[cacheKey] = filename;
      return filename;
    }
  }
 
  return false;
};
 
// 'node_modules' character codes reversed
const nmChars = [ 115, 101, 108, 117, 100, 111, 109, 95, 101, 100, 111, 110 ];
const nmLen = nmChars.length;
if (isWindows) {
  // 'from' is the __dirname of the module.
  Module._nodeModulePaths = function(from) {
    // Guarantee that 'from' is absolute.
    from = path.resolve(from);

    // note: this approach *only* works when the path is guaranteed
    // to be absolute.  Doing a fully-edge-case-correct path.split
    // that works on both Windows and Posix is non-trivial.

    // return root node_modules when path is 'D:\\'.
    // path.resolve will make sure from.length >=3 in Windows.
    if (StringPrototypeCharCodeAt(from, from.length - 1) ===
          CHAR_BACKWARD_SLASH &&
        StringPrototypeCharCodeAt(from, from.length - 2) === CHAR_COLON)
      return [from + 'node_modules'];

    const paths = [];
    for (let i = from.length - 1, p = 0, last = from.length; i >= 0; --i) {
      const code = StringPrototypeCharCodeAt(from, i);
      // The path segment separator check ('\' and '/') was used to get
      // node_modules path for every path segment.
      // Use colon as an extra condition since we can get node_modules
      // path for drive root like 'C:\node_modules' and don't need to
      // parse drive name.
      if (code === CHAR_BACKWARD_SLASH ||
          code === CHAR_FORWARD_SLASH ||
          code === CHAR_COLON) {
        if (p !== nmLen)
          ArrayPrototypePush(
            paths,
            StringPrototypeSlice(from, 0, last) + '\\node_modules'
          );
        last = i;
        p = 0;
      } else if (p !== -1) {
        if (nmChars[p] === code) {
          ++p;
        } else {
          p = -1;
        }
      }
    }

    return paths;
  };
} else { // posix
  // 'from' is the __dirname of the module.
  Module._nodeModulePaths = function(from) {
    // Guarantee that 'from' is absolute.
    from = path.resolve(from);
    // Return early not only to avoid unnecessary work, but to *avoid* returning
    // an array of two items for a root: [ '//node_modules', '/node_modules' ]
    if (from === '/')
      return ['/node_modules'];
 
    // note: this approach *only* works when the path is guaranteed
    // to be absolute.  Doing a fully-edge-case-correct path.split
    // that works on both Windows and Posix is non-trivial.
    const paths = [];
    for (let i = from.length - 1, p = 0, last = from.length; i >= 0; --i) {
      const code = StringPrototypeCharCodeAt(from, i);
      if (code === CHAR_FORWARD_SLASH) {
        if (p !== nmLen)
          ArrayPrototypePush(
            paths,
            StringPrototypeSlice(from, 0, last) + '/node_modules'
          );
        last = i;
        p = 0;
      } else if (p !== -1) {
        if (nmChars[p] === code) {
          ++p;
        } else {
          p = -1;
        }
      }
    }
 
    // Append /node_modules to handle root paths.
    ArrayPrototypePush(paths, '/node_modules');
 
    return paths;
  };
}
 
Module._resolveLookupPaths = function(request, parent) {
  if (NativeModule.canBeRequiredByUsers(request)) {
    debug('looking for %j in []', request);
    return null;
  }
 
  // Check for node modules paths.
  if (StringPrototypeCharAt(request, 0) !== '.' ||
      (request.length > 1 &&
      StringPrototypeCharAt(request, 1) !== '.' &&
      StringPrototypeCharAt(request, 1) !== '/' &&
      (!isWindows || StringPrototypeCharAt(request, 1) !== '\\'))) {
 
    let paths = modulePaths;
    if (parent?.paths?.length) {
      paths = ArrayPrototypeConcat(parent.paths, paths);
    }
 
    debug('looking for %j in %j', request, paths);
    return paths.length > 0 ? paths : null;
  }
 
  // In REPL, parent.filename is null.
  if (!parent || !parent.id || !parent.filename) {
    // Make require('./path/to/foo') work - normally the path is taken
    // from realpath(__filename) but in REPL there is no filename
    const mainPaths = ['.'];
 
    debug('looking for %j in %j', request, mainPaths);
    return mainPaths;
  }
 
  debug('RELATIVE: requested: %s from parent.id %s', request, parent.id);
 
  const parentDir = [path.dirname(parent.filename)];
  debug('looking for %j', parentDir);
  return parentDir;
};
 
function emitCircularRequireWarning(prop) {
  process.emitWarning(
    `Accessing non-existent property '${String(prop)}' of module exports ` +
    'inside circular dependency'
  );
}
 
// A Proxy that can be used as the prototype of a module.exports object and
// warns when non-existent properties are accessed.
const CircularRequirePrototypeWarningProxy = new Proxy({}, {
  get(target, prop) {
    // Allow __esModule access in any case because it is used in the output
    // of transpiled code to determine whether something comes from an
    // ES module, and is not used as a regular key of `module.exports`.
    if (prop in target || prop === '__esModule') return target[prop];
    emitCircularRequireWarning(prop);
    return undefined;
  },
 
  getOwnPropertyDescriptor(target, prop) {
    if (ObjectPrototypeHasOwnProperty(target, prop) || prop === '__esModule')
      return ObjectGetOwnPropertyDescriptor(target, prop);
    emitCircularRequireWarning(prop);
    return undefined;
  }
});
 
function getExportsForCircularRequire(module) {
  if (module.exports &&
      !isProxy(module.exports) &&
      ObjectGetPrototypeOf(module.exports) === ObjectPrototype &&
      // Exclude transpiled ES6 modules / TypeScript code because those may
      // employ unusual patterns for accessing 'module.exports'. That should
      // be okay because ES6 modules have a different approach to circular
      // dependencies anyway.
      !module.exports.__esModule) {
    // This is later unset once the module is done loading.
    ObjectSetPrototypeOf(
      module.exports, CircularRequirePrototypeWarningProxy);
  }
 
  return module.exports;
}
 
// Check the cache for the requested file.
// 1. If a module already exists in the cache: return its exports object.
// 2. If the module is native: call
//    `NativeModule.prototype.compileForPublicLoader()` and return the exports.
// 3. Otherwise, create a new module for the file and save it to the cache.
//    Then have it load  the file contents before returning its exports
//    object.
Module._load = function(request, parent, isMain) {
  let relResolveCacheIdentifier;
  if (parent) {
    debug('Module._load REQUEST %s parent: %s', request, parent.id);
    // Fast path for (lazy loaded) modules in the same directory. The indirect
    // caching is required to allow cache invalidation without changing the old
    // cache key names.
    relResolveCacheIdentifier = `${parent.path}\x00${request}`;
    const filename = relativeResolveCache[relResolveCacheIdentifier];
    if (filename !== undefined) {
      const cachedModule = Module._cache[filename];
      if (cachedModule !== undefined) {
        updateChildren(parent, cachedModule, true);
        if (!cachedModule.loaded)
          return getExportsForCircularRequire(cachedModule);
        return cachedModule.exports;
      }
      delete relativeResolveCache[relResolveCacheIdentifier];
    }
  }
 
  const filename = Module._resolveFilename(request, parent, isMain);
  if (StringPrototypeStartsWith(filename, 'node:')) {
    // Slice 'node:' prefix
    const id = StringPrototypeSlice(filename, 5);
 
    const module = loadNativeModule(id, request);
    if (!module?.canBeRequiredByUsers) {
      throw new ERR_UNKNOWN_BUILTIN_MODULE(filename);
    }
 
    return module.exports;
  }
 
  const cachedModule = Module._cache[filename];
  if (cachedModule !== undefined) {
    updateChildren(parent, cachedModule, true);
    if (!cachedModule.loaded) {
      const parseCachedModule = cjsParseCache.get(cachedModule);
      if (!parseCachedModule || parseCachedModule.loaded)
        return getExportsForCircularRequire(cachedModule);
      parseCachedModule.loaded = true;
    } else {
      return cachedModule.exports;
    }
  }
 
  const mod = loadNativeModule(filename, request);
  if (mod?.canBeRequiredByUsers) return mod.exports;
 
  // Don't call updateChildren(), Module constructor already does.
  const module = cachedModule || new Module(filename, parent);
 
  if (isMain) {
    process.mainModule = module;
    module.id = '.';
  }
 
  Module._cache[filename] = module;
  if (parent !== undefined) {
    relativeResolveCache[relResolveCacheIdentifier] = filename;
  }
 
  let threw = true;
  try {
    module.load(filename);
    threw = false;
  } finally {
    if (threw) {
      delete Module._cache[filename];
      if (parent !== undefined) {
        delete relativeResolveCache[relResolveCacheIdentifier];
        const children = parent?.children;
        if (ArrayIsArray(children)) {
          const index = ArrayPrototypeIndexOf(children, module);
          if (index !== -1) {
            ArrayPrototypeSplice(children, index, 1);
          }
        }
      }
    } else if (module.exports &&
               !isProxy(module.exports) &&
               ObjectGetPrototypeOf(module.exports) ===
                 CircularRequirePrototypeWarningProxy) {
      ObjectSetPrototypeOf(module.exports, ObjectPrototype);
    }
  }
 
  return module.exports;
};
 
Module._resolveFilename = function(request, parent, isMain, options) {
  if (StringPrototypeStartsWith(request, 'node:') ||
      NativeModule.canBeRequiredByUsers(request)) {
    return request;
  }
 
  let paths;
 
  if (typeof options === 'object' && options !== null) {
    if (ArrayIsArray(options.paths)) {
      const isRelative = StringPrototypeStartsWith(request, './') ||
          StringPrototypeStartsWith(request, '../') ||
          ((isWindows && StringPrototypeStartsWith(request, '.\\')) ||
          StringPrototypeStartsWith(request, '..\\'));
 
      if (isRelative) {
        paths = options.paths;
      } else {
        const fakeParent = new Module('', null);
 
        paths = [];
 
        for (let i = 0; i < options.paths.length; i++) {
          const path = options.paths[i];
          fakeParent.paths = Module._nodeModulePaths(path);
          const lookupPaths = Module._resolveLookupPaths(request, fakeParent);
 
          for (let j = 0; j < lookupPaths.length; j++) {
            if (!ArrayPrototypeIncludes(paths, lookupPaths[j]))
              ArrayPrototypePush(paths, lookupPaths[j]);
          }
        }
      }
    } else if (options.paths === undefined) {
      paths = Module._resolveLookupPaths(request, parent);
    } else {
      throw new ERR_INVALID_ARG_VALUE('options.paths', options.paths);
    }
  } else {
    paths = Module._resolveLookupPaths(request, parent);
  }
 
  if (parent?.filename) {
    if (request[0] === '#') {
      const pkg = readPackageScope(parent.filename) || {};
      if (pkg.data?.imports != null) {
        try {
          return finalizeEsmResolution(
            packageImportsResolve(request, pathToFileURL(parent.filename),
                                  cjsConditions), parent.filename,
            pkg.path);
        } catch (e) {
          if (e.code === 'ERR_MODULE_NOT_FOUND')
            throw createEsmNotFoundErr(request);
          throw e;
        }
      }
    }
  }
 
  // Try module self resolution first
  const parentPath = trySelfParentPath(parent);
  const selfResolved = trySelf(parentPath, request);
  if (selfResolved) {
    const cacheKey = request + '\x00' +
         (paths.length === 1 ? paths[0] : ArrayPrototypeJoin(paths, '\x00'));
    Module._pathCache[cacheKey] = selfResolved;
    return selfResolved;
  }
 
  // Look up the filename first, since that's the cache key.
  const filename = Module._findPath(request, paths, isMain, false);
  if (filename) return filename;
  const requireStack = [];
  for (let cursor = parent;
    cursor;
    cursor = moduleParentCache.get(cursor)) {
    ArrayPrototypePush(requireStack, cursor.filename || cursor.id);
  }
  let message = `Cannot find module '${request}'`;
  if (requireStack.length > 0) {
    message = message + '\nRequire stack:\n- ' +
              ArrayPrototypeJoin(requireStack, '\n- ');
  }
  // eslint-disable-next-line no-restricted-syntax
  const err = new Error(message);
  err.code = 'MODULE_NOT_FOUND';
  err.requireStack = requireStack;
  throw err;
};
 
function finalizeEsmResolution(resolved, parentPath, pkgPath) {
  if (RegExpPrototypeTest(encodedSepRegEx, resolved))
    throw new ERR_INVALID_MODULE_SPECIFIER(
      resolved, 'must not include encoded "/" or "\\" characters', parentPath);
  const filename = fileURLToPath(resolved);
  const actual = tryFile(filename);
  if (actual)
    return actual;
  const err = createEsmNotFoundErr(filename,
                                   path.resolve(pkgPath, 'package.json'));
  throw err;
}
 
function createEsmNotFoundErr(request, path) {
  // eslint-disable-next-line no-restricted-syntax
  const err = new Error(`Cannot find module '${request}'`);
  err.code = 'MODULE_NOT_FOUND';
  if (path)
    err.path = path;
  // TODO(BridgeAR): Add the requireStack as well.
  return err;
}
 
// Given a file name, pass it to the proper extension handler.
Module.prototype.load = function(filename) {
  debug('load %j for module %j', filename, this.id);
 
  assert(!this.loaded);
  this.filename = filename;
  this.paths = Module._nodeModulePaths(path.dirname(filename));
 
  const extension = findLongestRegisteredExtension(filename);
  // allow .mjs to be overridden
  if (StringPrototypeEndsWith(filename, '.mjs') && !Module._extensions['.mjs'])
    throw new ERR_REQUIRE_ESM(filename, true);
 
  Module._extensions[extension](this, filename);
  this.loaded = true;
 
  const esmLoader = asyncESM.esmLoader;
  // Create module entry at load time to snapshot exports correctly
  const exports = this.exports;
  // Preemptively cache
  if ((module?.module === undefined ||
       module.module.getStatus() < kEvaluated) &&
      !esmLoader.cjsCache.has(this))
    esmLoader.cjsCache.set(this, exports);
};
 
 
// Loads a module at the given file path. Returns that module's
// `exports` property.
Module.prototype.require = function(id) {
  validateString(id, 'id');
  if (id === '') {
    throw new ERR_INVALID_ARG_VALUE('id', id,
                                    'must be a non-empty string');
  }
  requireDepth++;
  try {
    return Module._load(id, this, /* isMain */ false);
  } finally {
    requireDepth--;
  }
};
 
 
// Resolved path to process.argv[1] will be lazily placed here
// (needed for setting breakpoint when called with --inspect-brk)
let resolvedArgv;
let hasPausedEntry = false;
 
function wrapSafe(filename, content, cjsModuleInstance) {
  if (patched) {
    const wrapper = Module.wrap(content);
    return vm.runInThisContext(wrapper, {
      filename,
      lineOffset: 0,
      displayErrors: true,
      importModuleDynamically: async (specifier, _, importAssertions) => {
        const loader = asyncESM.esmLoader;
        return loader.import(specifier, normalizeReferrerURL(filename),
                             importAssertions);
      },
    });
  }
  try {
    return vm.compileFunction(content, [
      'exports',
      'require',
      'module',
      '__filename',
      '__dirname',
    ], {
      filename,
      importModuleDynamically(specifier, _, importAssertions) {
        const loader = asyncESM.esmLoader;
        return loader.import(specifier, normalizeReferrerURL(filename),
                             importAssertions);
      },
    });
  } catch (err) {
    if (process.mainModule === cjsModuleInstance)
      enrichCJSError(err, content);
    throw err;
  }
}
 
// Run the file contents in the correct scope or sandbox. Expose
// the correct helper variables (require, module, exports) to
// the file.
// Returns exception, if any.
Module.prototype._compile = function(content, filename) {
  let moduleURL;
  let redirects;
  if (policy?.manifest) {
    moduleURL = pathToFileURL(filename);
    redirects = policy.manifest.getDependencyMapper(moduleURL);
    policy.manifest.assertIntegrity(moduleURL, content);
  }
 
  maybeCacheSourceMap(filename, content, this);
  const compiledWrapper = wrapSafe(filename, content, this);
 
  let inspectorWrapper = null;
  if (getOptionValue('--inspect-brk') && process._eval == null) {
    if (!resolvedArgv) {
      // We enter the repl if we're not given a filename argument.
      if (process.argv[1]) {
        try {
          resolvedArgv = Module._resolveFilename(process.argv[1], null, false);
        } catch {
          // We only expect this codepath to be reached in the case of a
          // preloaded module (it will fail earlier with the main entry)
          assert(ArrayIsArray(getOptionValue('--require')));
        }
      } else {
        resolvedArgv = 'repl';
      }
    }
 
    // Set breakpoint on module start
    if (resolvedArgv && !hasPausedEntry && filename === resolvedArgv) {
      hasPausedEntry = true;
      inspectorWrapper = internalBinding('inspector').callAndPauseOnStart;
    }
  }
  const dirname = path.dirname(filename);
  const require = makeRequireFunction(this, redirects);
  let result;
  const exports = this.exports;
  const thisValue = exports;
  const module = this;
  if (requireDepth === 0) statCache = new SafeMap();
  if (inspectorWrapper) {
    result = inspectorWrapper(compiledWrapper, thisValue, exports,
                              require, module, filename, dirname);
  } else {
    result = ReflectApply(compiledWrapper, thisValue,
                          [exports, require, module, filename, dirname]);
  }
  hasLoadedAnyUserCJSModule = true;
  if (requireDepth === 0) statCache = null;
  return result;
};
 
// Native extension for .js
Module._extensions['.js'] = function(module, filename) {
  // If already analyzed the source, then it will be cached.
  const cached = cjsParseCache.get(module);
  let content;
  if (cached?.source) {
    content = cached.source;
    cached.source = undefined;
  } else {
    content = fs.readFileSync(filename, 'utf8');
  }
  if (StringPrototypeEndsWith(filename, '.js')) {
    const pkg = readPackageScope(filename);
    // Function require shouldn't be used in ES modules.
    if (pkg?.data?.type === 'module') {
      const parent = moduleParentCache.get(module);
      const parentPath = parent?.filename;
      const packageJsonPath = path.resolve(pkg.path, 'package.json');
      const usesEsm = hasEsmSyntax(content);
      const err = new ERR_REQUIRE_ESM(filename, usesEsm, parentPath,
                                      packageJsonPath);
      // Attempt to reconstruct the parent require frame.
      if (Module._cache[parentPath]) {
        let parentSource;
        try {
          parentSource = fs.readFileSync(parentPath, 'utf8');
        } catch {
          // Continue regardless of error.
        }
        if (parentSource) {
          const errLine = StringPrototypeSplit(
            StringPrototypeSlice(err.stack, StringPrototypeIndexOf(
              err.stack, '    at ')), '\n', 1)[0];
          const { 1: line, 2: col } =
              RegExpPrototypeExec(/(\d+):(\d+)\)/, errLine) || [];
          if (line && col) {
            const srcLine = StringPrototypeSplit(parentSource, '\n')[line - 1];
            const frame = `${parentPath}:${line}\n${srcLine}\n${
              StringPrototypeRepeat(' ', col - 1)}^\n`;
            setArrowMessage(err, frame);
          }
        }
      }
      throw err;
    }
  }
  module._compile(content, filename);
};
 
 
// Native extension for .json
Module._extensions['.json'] = function(module, filename) {
  const content = fs.readFileSync(filename, 'utf8');
 
  if (policy?.manifest) {
    const moduleURL = pathToFileURL(filename);
    policy.manifest.assertIntegrity(moduleURL, content);
  }
 
  try {
    module.exports = JSONParse(stripBOM(content));
  } catch (err) {
    err.message = filename + ': ' + err.message;
    throw err;
  }
};
 
 
// Native extension for .node
Module._extensions['.node'] = function(module, filename) {
  if (policy?.manifest) {
    const content = fs.readFileSync(filename);
    const moduleURL = pathToFileURL(filename);
    policy.manifest.assertIntegrity(moduleURL, content);
  }
  // Be aware this doesn't use `content`
  return process.dlopen(module, path.toNamespacedPath(filename));
};
 
function createRequireFromPath(filename) {
  // Allow a directory to be passed as the filename
  const trailingSlash =
    StringPrototypeEndsWith(filename, '/') ||
    (isWindows && StringPrototypeEndsWith(filename, '\\'));
 
  const proxyPath = trailingSlash ?
    path.join(filename, 'noop.js') :
    filename;
 
  const m = new Module(proxyPath);
  m.filename = proxyPath;
 
  m.paths = Module._nodeModulePaths(m.path);
  return makeRequireFunction(m, null);
}
 
const createRequireError = 'must be a file URL object, file URL string, or ' +
  'absolute path string';
 
function createRequire(filename) {
  let filepath;
 
  if (isURLInstance(filename) ||
      (typeof filename === 'string' && !path.isAbsolute(filename))) {
    try {
      filepath = fileURLToPath(filename);
    } catch {
      throw new ERR_INVALID_ARG_VALUE('filename', filename,
                                      createRequireError);
    }
  } else if (typeof filename !== 'string') {
    throw new ERR_INVALID_ARG_VALUE('filename', filename, createRequireError);
  } else {
    filepath = filename;
  }
  return createRequireFromPath(filepath);
}
 
Module.createRequire = createRequire;
 
Module._initPaths = function() {
  const homeDir = isWindows ? process.env.USERPROFILE : safeGetenv('HOME');
  const nodePath = isWindows ? process.env.NODE_PATH : safeGetenv('NODE_PATH');
 
  // process.execPath is $PREFIX/bin/node except on Windows where it is
  // $PREFIX\node.exe where $PREFIX is the root of the Node.js installation.
  const prefixDir = isWindows ?
    path.resolve(process.execPath, '..') :
    path.resolve(process.execPath, '..', '..');
 
  const paths = [path.resolve(prefixDir, 'lib', 'node')];
 
  if (homeDir) {
    ArrayPrototypeUnshift(paths, path.resolve(homeDir, '.node_libraries'));
    ArrayPrototypeUnshift(paths, path.resolve(homeDir, '.node_modules'));
  }
 
  if (nodePath) {
    ArrayPrototypeUnshiftApply(paths, ArrayPrototypeFilter(
      StringPrototypeSplit(nodePath, path.delimiter),
      Boolean
    ));
  }
 
  modulePaths = paths;
 
  // Clone as a shallow copy, for introspection.
  Module.globalPaths = ArrayPrototypeSlice(modulePaths);
};
 
Module._preloadModules = function(requests) {
  if (!ArrayIsArray(requests))
    return;
 
  isPreloading = true;
 
  // Preloaded modules have a dummy parent module which is deemed to exist
  // in the current working directory. This seeds the search path for
  // preloaded modules.
  const parent = new Module('internal/preload', null);
  try {
    parent.paths = Module._nodeModulePaths(process.cwd());
  } catch (e) {
    if (e.code !== 'ENOENT') {
      isPreloading = false;
      throw e;
    }
  }
  for (let n = 0; n < requests.length; n++)
    parent.require(requests[n]);
  isPreloading = false;
};
 
Module.syncBuiltinESMExports = function syncBuiltinESMExports() {
  for (const mod of NativeModule.map.values()) {
    if (mod.canBeRequiredByUsers) {
      mod.syncExports();
    }
  }
};
 
// Backwards compatibility
Module.Module = Module;