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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 1129x 1129x 2x 2x 2x 2x 2x 2x 4x 4x 2x 2x 2x 2x 2x 2x 2x 30x 30x 2x 2x 2x 2x 2x 2x 2x 8539x 8539x 8539x 8539x 8539x 8539x 8539x 8539x 8539x 8539x 2x 2x 2x 2x 2x 2x 2x 2x 8737x 8737x 2x 2x 2x 2x 2x 2x 2x 20x 20x 2x 2x 2x 2x 2x 40x 40x 40x 2x 2x 2x 2x 2x 2x 2x 2x 896x 896x 2x 2x 2x 2x 2x 2x 21800x 21800x 2x 2x 2x 2x 2x 2x 2x 148x 148x 2x 2x 2x 2x 2x 2x 2x 57585x 57585x 57585x 57585x 57585x 57585x 57585x 81779x 6836x 6731x 6836x 105x 105x 81779x 74943x 74943x 81779x 57585x 57585x 57585x 57585x 57585x 57585x 57585x 57585x 2x 2x 2x 2x 2x 2x 2x 72x 72x 72x 72x 72x 72x 72x 72x 2x 2x 2x 2x 2x 2x 2x 88x 88x 2x 2x 2x 2x 2x 2x 2x 2x 145x 145x 2x 2x 2x 2x 2x 2x 2x 2x 1625x 1625x 2x 2x 2x 2x 2x 2x 2x 14221x 14221x 14221x 14221x 14221x 14221x 2x 2x 2x 2x 2x 2x 2x 20852x 20852x 20852x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 4984x 4984x 2x 2x 2x 2x 2x 2x 2x 2x 5032x 5032x 5032x 5032x 5032x 5032x 5032x 5032x 5032x 5032x 2x 2x 2x 2x 2x 2x 2x 2669x 2669x 2x 2x 2x 2x 2x 2x 144181x 144181x 2x 2x 2x 2x 2x 2x 68x 68x 2x 2x 2x 2x 2x 5009x 5009x 5009x 5009x 5009x 5009x 2x 2x 2x 2x 2x 2x 2x 4064x 4064x 2x 2x 2x 2x 2x 2x 41117x 41117x 41117x 2x 2x 2x 2x 2x 2x 2x 2x 2x 6099x 1995x 1995x 6099x 6099x 6099x 2x 2x 2x 2x 2x 2x 867x 867x 867x 867x 867x 867x 235x 235x 867x 867x 2x 2x 2x 2x 2x 2x 5337x 5337x 2x 2x 2x 2x 2x 2x 98x 98x 98x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 10049x 10049x 2x 2x 2x 2x 2x 2x 2x 2x 2x 75x 75x 2x 2x 2x 2x 2x 2x 2x 21799x 21799x 21799x 2x 2x 2x 2x 2x 2x 54x 54x 2x 2x 2x 2x 2x 2x 755x 755x 2x 2x 2x 2x 2x 2x 2x 2179x 2179x 2x 2x 2x 2x 2x 2x 381x 381x 2x 2x 2x 2x 2x 2x 31803x 31803x 2x 2x 2x 2x 2x 2x 2x 13414x 13414x 2x 2x 2x 2x 2x 2x 2x 5672x 5672x 5672x 5672x 2x 2x 2x 2x 2x 2x 2x 5986x 5986x 5986x 5986x 5986x 5986x 781x 116x 116x 781x 5986x 781x 781x 5205x 5205x 2x 2x 2x 2x 2x 2x 2x 148x 148x 148x 148x 148x 148x 148x 148x 148x 2x 2x 2x 2x 2x 2x 2x 2x 481x 481x 2x 2x 2x 2x 2x 2x 2x 88x 88x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 883x 883x 883x 2x 2x 2x 2x 2x 2x 1506x 1506x 1506x 2x 2x 2x 2x 2x 2x 11351x 11351x 11351x 2x 2x 2x 2x 2x 2x 2x 2x 2x 481x 481x 481x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 2x 2x 2x 2x 2x 2x 2x 2x 5265x 5265x 5265x 5265x 5265x 5265x 5265x 5265x 5265x 5265x 5265x 2x 2x 2x 2x 2x 2x 2x 561x 561x 561x 2x 2x 2x 2x 2x 2x 2x 5009x 5009x 5009x 5009x 5009x 5009x 2x 2x 2x 2x 2x 2x 2x 2441x 2441x 2441x 2441x 8x 8x 8x 2441x 2441x 2441x 2x 2x 2x 2x 2x 4034x 4034x 4034x 2x 2x 2x 2x 2x 2x 148x 148x 148x 148x 148x 2x 2x 2x 2x 2x 2x 2x 9557x 9557x | /** @import * as ESTree from 'estree' */
import { regex_is_valid_identifier } from '../phases/patterns.js';
import { sanitize_template_string } from './sanitize_template_string.js';
/**
* @param {Array<ESTree.Expression | ESTree.SpreadElement | null>} elements
* @returns {ESTree.ArrayExpression}
*/
export function array(elements = []) {
return { type: 'ArrayExpression', elements };
}
/**
* @param {Array<ESTree.Pattern | null>} elements
* @returns {ESTree.ArrayPattern}
*/
export function array_pattern(elements) {
return { type: 'ArrayPattern', elements };
}
/**
* @param {ESTree.Pattern} left
* @param {ESTree.Expression} right
* @returns {ESTree.AssignmentPattern}
*/
export function assignment_pattern(left, right) {
return { type: 'AssignmentPattern', left, right };
}
/**
* @param {Array<ESTree.Pattern>} params
* @param {ESTree.BlockStatement | ESTree.Expression} body
* @returns {ESTree.ArrowFunctionExpression}
*/
export function arrow(params, body) {
return {
type: 'ArrowFunctionExpression',
params,
body,
expression: body.type !== 'BlockStatement',
generator: false,
async: false,
metadata: /** @type {any} */ (null) // should not be used by codegen
};
}
/**
* @param {ESTree.AssignmentOperator} operator
* @param {ESTree.Pattern} left
* @param {ESTree.Expression} right
* @returns {ESTree.AssignmentExpression}
*/
export function assignment(operator, left, right) {
return { type: 'AssignmentExpression', operator, left, right };
}
/**
* @template T
* @param {T & ESTree.BaseFunction} func
* @returns {T & ESTree.BaseFunction}
*/
export function async(func) {
return { ...func, async: true };
}
/**
* @param {ESTree.Expression} argument
* @returns {ESTree.AwaitExpression}
*/
function await_builder(argument) {
return { type: 'AwaitExpression', argument };
}
/**
* @param {ESTree.BinaryOperator} operator
* @param {ESTree.Expression} left
* @param {ESTree.Expression} right
* @returns {ESTree.BinaryExpression}
*/
export function binary(operator, left, right) {
return { type: 'BinaryExpression', operator, left, right };
}
/**
* @param {ESTree.Statement[]} body
* @returns {ESTree.BlockStatement}
*/
export function block(body) {
return { type: 'BlockStatement', body };
}
/**
* @param {string} name
* @param {ESTree.Statement} body
* @returns {ESTree.LabeledStatement}
*/
export function labeled(name, body) {
return { type: 'LabeledStatement', label: id(name), body };
}
/**
* @param {string | ESTree.Expression} callee
* @param {...(ESTree.Expression | ESTree.SpreadElement | false | undefined)} args
* @returns {ESTree.CallExpression}
*/
export function call(callee, ...args) {
if (typeof callee === 'string') callee = id(callee);
args = args.slice();
// replacing missing arguments with `undefined`, unless they're at the end in which case remove them
let i = args.length;
let popping = true;
while (i--) {
if (!args[i]) {
if (popping) {
args.pop();
} else {
args[i] = id('undefined');
}
} else {
popping = false;
}
}
return {
type: 'CallExpression',
callee,
arguments: /** @type {Array<ESTree.Expression | ESTree.SpreadElement>} */ (args),
optional: false
};
}
/**
* @param {string | ESTree.Expression} callee
* @param {...ESTree.Expression} args
* @returns {ESTree.ChainExpression}
*/
export function maybe_call(callee, ...args) {
const expression = /** @type {ESTree.SimpleCallExpression} */ (call(callee, ...args));
expression.optional = true;
return {
type: 'ChainExpression',
expression
};
}
/**
* @param {ESTree.UnaryOperator} operator
* @param {ESTree.Expression} argument
* @returns {ESTree.UnaryExpression}
*/
export function unary(operator, argument) {
return { type: 'UnaryExpression', argument, operator, prefix: true };
}
/**
* @param {ESTree.Expression} test
* @param {ESTree.Expression} consequent
* @param {ESTree.Expression} alternate
* @returns {ESTree.ConditionalExpression}
*/
export function conditional(test, consequent, alternate) {
return { type: 'ConditionalExpression', test, consequent, alternate };
}
/**
* @param {ESTree.LogicalOperator} operator
* @param {ESTree.Expression} left
* @param {ESTree.Expression} right
* @returns {ESTree.LogicalExpression}
*/
export function logical(operator, left, right) {
return { type: 'LogicalExpression', operator, left, right };
}
/**
* @param {'const' | 'let' | 'var'} kind
* @param {ESTree.VariableDeclarator[]} declarations
* @returns {ESTree.VariableDeclaration}
*/
export function declaration(kind, declarations) {
return {
type: 'VariableDeclaration',
kind,
declarations
};
}
/**
* @param {ESTree.Pattern | string} pattern
* @param {ESTree.Expression} [init]
* @returns {ESTree.VariableDeclarator}
*/
export function declarator(pattern, init) {
if (typeof pattern === 'string') pattern = id(pattern);
return { type: 'VariableDeclarator', id: pattern, init };
}
/** @type {ESTree.EmptyStatement} */
export const empty = {
type: 'EmptyStatement'
};
/**
* @param {ESTree.Expression | ESTree.MaybeNamedClassDeclaration | ESTree.MaybeNamedFunctionDeclaration} declaration
* @returns {ESTree.ExportDefaultDeclaration}
*/
export function export_default(declaration) {
return { type: 'ExportDefaultDeclaration', declaration };
}
/**
* @param {ESTree.Identifier} id
* @param {ESTree.Pattern[]} params
* @param {ESTree.BlockStatement} body
* @returns {ESTree.FunctionDeclaration}
*/
export function function_declaration(id, params, body) {
return {
type: 'FunctionDeclaration',
id,
params,
body,
generator: false,
async: false,
metadata: /** @type {any} */ (null) // should not be used by codegen
};
}
/**
* @param {string} name
* @param {ESTree.Statement[]} body
* @returns {ESTree.Property & { value: ESTree.FunctionExpression}}}
*/
export function get(name, body) {
return prop('get', key(name), function_builder(null, [], block(body)));
}
/**
* @param {string} name
* @returns {ESTree.Identifier}
*/
export function id(name) {
return { type: 'Identifier', name };
}
/**
* @param {string} name
* @returns {ESTree.PrivateIdentifier}
*/
export function private_id(name) {
return { type: 'PrivateIdentifier', name };
}
/**
* @param {string} local
* @returns {ESTree.ImportNamespaceSpecifier}
*/
function import_namespace(local) {
return {
type: 'ImportNamespaceSpecifier',
local: id(local)
};
}
/**
* @param {string} name
* @param {ESTree.Expression} value
* @returns {ESTree.Property}
*/
export function init(name, value) {
return prop('init', key(name), value);
}
/**
* @param {string | boolean | null | number | RegExp} value
* @returns {ESTree.Literal}
*/
export function literal(value) {
// @ts-expect-error we don't want to muck around with bigint here
return { type: 'Literal', value };
}
/**
* @param {ESTree.Expression | ESTree.Super} object
* @param {string | ESTree.Expression | ESTree.PrivateIdentifier} property
* @param {boolean} computed
* @param {boolean} optional
* @returns {ESTree.MemberExpression}
*/
export function member(object, property, computed = false, optional = false) {
if (typeof property === 'string') {
property = id(property);
}
return { type: 'MemberExpression', object, property, computed, optional };
}
/**
* @param {string} path
* @returns {ESTree.Identifier | ESTree.MemberExpression}
*/
export function member_id(path) {
const parts = path.split('.');
/** @type {ESTree.Identifier | ESTree.MemberExpression} */
let expression = id(parts[0]);
for (let i = 1; i < parts.length; i += 1) {
expression = member(expression, id(parts[i]));
}
return expression;
}
/**
* @param {Array<ESTree.Property | ESTree.SpreadElement>} properties
* @returns {ESTree.ObjectExpression}
*/
export function object(properties) {
return { type: 'ObjectExpression', properties };
}
/**
* @param {Array<ESTree.RestElement | ESTree.AssignmentProperty | ESTree.Property>} properties
* @returns {ESTree.ObjectPattern}
*/
export function object_pattern(properties) {
// @ts-expect-error the types appear to be wrong
return { type: 'ObjectPattern', properties };
}
/**
* @template {ESTree.Expression} Value
* @param {'init' | 'get' | 'set'} kind
* @param {ESTree.Expression} key
* @param {Value} value
* @param {boolean} computed
* @returns {ESTree.Property & { value: Value }}
*/
export function prop(kind, key, value, computed = false) {
return { type: 'Property', kind, key, value, method: false, shorthand: false, computed };
}
/**
* @param {ESTree.Expression | ESTree.PrivateIdentifier} key
* @param {ESTree.Expression | null | undefined} value
* @param {boolean} computed
* @param {boolean} is_static
* @returns {ESTree.PropertyDefinition}
*/
export function prop_def(key, value, computed = false, is_static = false) {
return { type: 'PropertyDefinition', key, value, computed, static: is_static, decorators: [] };
}
/**
* @param {string} cooked
* @param {boolean} tail
* @returns {ESTree.TemplateElement}
*/
export function quasi(cooked, tail = false) {
const raw = sanitize_template_string(cooked);
return { type: 'TemplateElement', value: { raw, cooked }, tail };
}
/**
* @param {ESTree.Pattern} argument
* @returns {ESTree.RestElement}
*/
export function rest(argument) {
return { type: 'RestElement', argument };
}
/**
* @param {ESTree.Expression[]} expressions
* @returns {ESTree.SequenceExpression}
*/
export function sequence(expressions) {
return { type: 'SequenceExpression', expressions };
}
/**
* @param {string} name
* @param {ESTree.Statement[]} body
* @returns {ESTree.Property & { value: ESTree.FunctionExpression}}
*/
export function set(name, body) {
return prop('set', key(name), function_builder(null, [id('$$value')], block(body)));
}
/**
* @param {ESTree.Expression} argument
* @returns {ESTree.SpreadElement}
*/
export function spread(argument) {
return { type: 'SpreadElement', argument };
}
/**
* @param {ESTree.Expression} expression
* @returns {ESTree.ExpressionStatement}
*/
export function stmt(expression) {
return { type: 'ExpressionStatement', expression };
}
/**
* @param {ESTree.TemplateElement[]} elements
* @param {ESTree.Expression[]} expressions
* @returns {ESTree.TemplateLiteral}
*/
export function template(elements, expressions) {
return { type: 'TemplateLiteral', quasis: elements, expressions };
}
/**
* @param {ESTree.Expression | ESTree.BlockStatement} expression
* @param {boolean} [async]
* @returns {ESTree.Expression}
*/
export function thunk(expression, async = false) {
const fn = arrow([], expression);
if (async) fn.async = true;
return unthunk(fn);
}
/**
* Replace "(arg) => func(arg)" to "func"
* @param {ESTree.Expression} expression
* @returns {ESTree.Expression}
*/
export function unthunk(expression) {
if (
expression.type === 'ArrowFunctionExpression' &&
expression.async === false &&
expression.body.type === 'CallExpression' &&
expression.body.callee.type === 'Identifier' &&
expression.params.length === expression.body.arguments.length &&
expression.params.every((param, index) => {
const arg = /** @type {ESTree.SimpleCallExpression} */ (expression.body).arguments[index];
return param.type === 'Identifier' && arg.type === 'Identifier' && param.name === arg.name;
})
) {
return expression.body.callee;
}
return expression;
}
/**
*
* @param {string | ESTree.Expression} expression
* @param {...ESTree.Expression} args
* @returns {ESTree.NewExpression}
*/
function new_builder(expression, ...args) {
if (typeof expression === 'string') expression = id(expression);
return {
callee: expression,
arguments: args,
type: 'NewExpression'
};
}
/**
* @param {ESTree.UpdateOperator} operator
* @param {ESTree.Expression} argument
* @param {boolean} prefix
* @returns {ESTree.UpdateExpression}
*/
export function update(operator, argument, prefix = false) {
return { type: 'UpdateExpression', operator, argument, prefix };
}
/**
* @param {ESTree.Expression} test
* @param {ESTree.Statement} body
* @returns {ESTree.DoWhileStatement}
*/
export function do_while(test, body) {
return { type: 'DoWhileStatement', test, body };
}
const true_instance = literal(true);
const false_instance = literal(false);
const null_instane = literal(null);
/** @type {ESTree.DebuggerStatement} */
const debugger_builder = {
type: 'DebuggerStatement'
};
/** @type {ESTree.ThisExpression} */
const this_instance = {
type: 'ThisExpression'
};
/**
* @param {string | ESTree.Pattern} pattern
* @param { ESTree.Expression} [init]
* @returns {ESTree.VariableDeclaration}
*/
function let_builder(pattern, init) {
return declaration('let', [declarator(pattern, init)]);
}
/**
* @param {string | ESTree.Pattern} pattern
* @param { ESTree.Expression} init
* @returns {ESTree.VariableDeclaration}
*/
function const_builder(pattern, init) {
return declaration('const', [declarator(pattern, init)]);
}
/**
* @param {string | ESTree.Pattern} pattern
* @param { ESTree.Expression} [init]
* @returns {ESTree.VariableDeclaration}
*/
function var_builder(pattern, init) {
return declaration('var', [declarator(pattern, init)]);
}
/**
*
* @param {ESTree.VariableDeclaration | ESTree.Expression | null} init
* @param {ESTree.Expression} test
* @param {ESTree.Expression} update
* @param {ESTree.Statement} body
* @returns {ESTree.ForStatement}
*/
function for_builder(init, test, update, body) {
return { type: 'ForStatement', init, test, update, body };
}
/**
*
* @param {'constructor' | 'method' | 'get' | 'set'} kind
* @param {ESTree.Expression | ESTree.PrivateIdentifier} key
* @param {ESTree.Pattern[]} params
* @param {ESTree.Statement[]} body
* @param {boolean} computed
* @param {boolean} is_static
* @returns {ESTree.MethodDefinition}
*/
export function method(kind, key, params, body, computed = false, is_static = false) {
return {
type: 'MethodDefinition',
key,
kind,
value: function_builder(null, params, block(body)),
computed,
static: is_static,
decorators: []
};
}
/**
*
* @param {ESTree.Identifier | null} id
* @param {ESTree.Pattern[]} params
* @param {ESTree.BlockStatement} body
* @returns {ESTree.FunctionExpression}
*/
function function_builder(id, params, body) {
return {
type: 'FunctionExpression',
id,
params,
body,
generator: false,
async: false,
metadata: /** @type {any} */ (null) // should not be used by codegen
};
}
/**
* @param {ESTree.Expression} test
* @param {ESTree.Statement} consequent
* @param {ESTree.Statement} [alternate]
* @returns {ESTree.IfStatement}
*/
function if_builder(test, consequent, alternate) {
return { type: 'IfStatement', test, consequent, alternate };
}
/**
* @param {string} as
* @param {string} source
* @returns {ESTree.ImportDeclaration}
*/
export function import_all(as, source) {
return {
type: 'ImportDeclaration',
source: literal(source),
specifiers: [import_namespace(as)]
};
}
/**
* @param {Array<[string, string]>} parts
* @param {string} source
* @returns {ESTree.ImportDeclaration}
*/
export function imports(parts, source) {
return {
type: 'ImportDeclaration',
source: literal(source),
specifiers: parts.map((p) => ({
type: 'ImportSpecifier',
imported: id(p[0]),
local: id(p[1])
}))
};
}
/**
* @param {ESTree.Expression | null} argument
* @returns {ESTree.ReturnStatement}
*/
function return_builder(argument = null) {
return { type: 'ReturnStatement', argument };
}
/**
* @param {string} str
* @returns {ESTree.ThrowStatement}
*/
export function throw_error(str) {
return {
type: 'ThrowStatement',
argument: new_builder('Error', literal(str))
};
}
export {
await_builder as await,
let_builder as let,
const_builder as const,
var_builder as var,
true_instance as true,
false_instance as false,
for_builder as for,
function_builder as function,
return_builder as return,
if_builder as if,
this_instance as this,
null_instane as null,
debugger_builder as debugger
};
/**
* @param {string} name
* @returns {ESTree.Expression}
*/
export function key(name) {
return regex_is_valid_identifier.test(name) ? id(name) : literal(name);
}
|