1 | function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
2 |
|
3 | function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
|
4 |
|
5 | function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
|
6 |
|
7 | function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
|
8 |
|
9 | function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }
|
10 |
|
11 | function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
|
12 |
|
13 | function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
|
14 |
|
15 | import { codeFrameFromSource } from "@webassemblyjs/helper-code-frame";
|
16 | import * as t from "@webassemblyjs/ast";
|
17 | import { parse32I } from "@webassemblyjs/helper-numbers";
|
18 | import { parseString } from "./string-literals";
|
19 | import { tokens, keywords } from "./tokenizer";
|
20 |
|
21 | function hasPlugin(name) {
|
22 | if (name !== "wast") throw new Error("unknow plugin");
|
23 | return true;
|
24 | }
|
25 |
|
26 | function isKeyword(token, id) {
|
27 | return token.type === tokens.keyword && token.value === id;
|
28 | }
|
29 |
|
30 | function tokenToString(token) {
|
31 | if (token.type === "keyword") {
|
32 | return "keyword (".concat(token.value, ")");
|
33 | }
|
34 |
|
35 | return token.type;
|
36 | }
|
37 |
|
38 | function identifierFromToken(token) {
|
39 | var _token$loc = token.loc,
|
40 | end = _token$loc.end,
|
41 | start = _token$loc.start;
|
42 | return t.withLoc(t.identifier(token.value), end, start);
|
43 | }
|
44 |
|
45 | export function parse(tokensList, source) {
|
46 | var current = 0;
|
47 | var getUniqueName = t.getUniqueNameGenerator();
|
48 | var state = {
|
49 | registredExportedElements: []
|
50 | };
|
51 |
|
52 |
|
53 | function walk() {
|
54 | var token = tokensList[current];
|
55 |
|
56 | function eatToken() {
|
57 | token = tokensList[++current];
|
58 | }
|
59 |
|
60 | function getEndLoc() {
|
61 | var currentToken = token;
|
62 |
|
63 | if (typeof currentToken === "undefined") {
|
64 | var lastToken = tokensList[tokensList.length - 1];
|
65 | currentToken = lastToken;
|
66 | }
|
67 |
|
68 | return currentToken.loc.end;
|
69 | }
|
70 |
|
71 | function getStartLoc() {
|
72 | return token.loc.start;
|
73 | }
|
74 |
|
75 | function eatTokenOfType(type) {
|
76 | if (token.type !== type) {
|
77 | throw new Error("\n" + codeFrameFromSource(source, token.loc) + "Assertion error: expected token of type " + type + ", given " + tokenToString(token));
|
78 | }
|
79 |
|
80 | eatToken();
|
81 | }
|
82 |
|
83 | function parseExportIndex(token) {
|
84 | if (token.type === tokens.identifier) {
|
85 | var index = identifierFromToken(token);
|
86 | eatToken();
|
87 | return index;
|
88 | } else if (token.type === tokens.number) {
|
89 | var _index = t.numberLiteralFromRaw(token.value);
|
90 |
|
91 | eatToken();
|
92 | return _index;
|
93 | } else {
|
94 | throw function () {
|
95 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "unknown export index" + ", given " + tokenToString(token));
|
96 | }();
|
97 | }
|
98 | }
|
99 |
|
100 | function lookaheadAndCheck() {
|
101 | var len = arguments.length;
|
102 |
|
103 | for (var i = 0; i < len; i++) {
|
104 | var tokenAhead = tokensList[current + i];
|
105 | var expectedToken = i < 0 || arguments.length <= i ? undefined : arguments[i];
|
106 |
|
107 | if (tokenAhead.type === "keyword") {
|
108 | if (isKeyword(tokenAhead, expectedToken) === false) {
|
109 | return false;
|
110 | }
|
111 | } else if (expectedToken !== tokenAhead.type) {
|
112 | return false;
|
113 | }
|
114 | }
|
115 |
|
116 | return true;
|
117 | }
|
118 |
|
119 |
|
120 |
|
121 | function maybeIgnoreComment() {
|
122 | if (typeof token === "undefined") {
|
123 |
|
124 | return;
|
125 | }
|
126 |
|
127 | while (token.type === tokens.comment) {
|
128 | eatToken();
|
129 |
|
130 | if (typeof token === "undefined") {
|
131 |
|
132 | break;
|
133 | }
|
134 | }
|
135 | }
|
136 | |
137 |
|
138 |
|
139 |
|
140 |
|
141 |
|
142 |
|
143 |
|
144 |
|
145 |
|
146 |
|
147 |
|
148 |
|
149 |
|
150 | function parseMemory() {
|
151 | var id = t.identifier(getUniqueName("memory"));
|
152 | var limits = t.limit(0);
|
153 |
|
154 | if (token.type === tokens.string || token.type === tokens.identifier) {
|
155 | id = t.identifier(token.value);
|
156 | eatToken();
|
157 | } else {
|
158 | id = t.withRaw(id, "");
|
159 | }
|
160 | |
161 |
|
162 |
|
163 |
|
164 |
|
165 | if (lookaheadAndCheck(tokens.openParen, keywords.data)) {
|
166 | eatToken();
|
167 |
|
168 | eatToken();
|
169 |
|
170 |
|
171 | var stringInitializer = token.value;
|
172 | eatTokenOfType(tokens.string);
|
173 |
|
174 | limits = t.limit(stringInitializer.length);
|
175 | eatTokenOfType(tokens.closeParen);
|
176 | }
|
177 | |
178 |
|
179 |
|
180 |
|
181 |
|
182 | if (lookaheadAndCheck(tokens.openParen, keywords["export"])) {
|
183 | eatToken();
|
184 |
|
185 | eatToken();
|
186 |
|
187 | if (token.type !== tokens.string) {
|
188 | throw function () {
|
189 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Expected string in export" + ", given " + tokenToString(token));
|
190 | }();
|
191 | }
|
192 |
|
193 | var name = token.value;
|
194 | eatToken();
|
195 | state.registredExportedElements.push({
|
196 | exportType: "Memory",
|
197 | name: name,
|
198 | id: id
|
199 | });
|
200 | eatTokenOfType(tokens.closeParen);
|
201 | }
|
202 | |
203 |
|
204 |
|
205 |
|
206 |
|
207 | if (token.type === tokens.number) {
|
208 | limits = t.limit(parse32I(token.value));
|
209 | eatToken();
|
210 |
|
211 | if (token.type === tokens.number) {
|
212 | limits.max = parse32I(token.value);
|
213 | eatToken();
|
214 |
|
215 | if (token.type === tokens.keyword && token.value === "shared") {
|
216 | limits.shared = true;
|
217 | eatToken();
|
218 | }
|
219 | }
|
220 | }
|
221 |
|
222 | return t.memory(limits, id);
|
223 | }
|
224 | |
225 |
|
226 |
|
227 |
|
228 |
|
229 |
|
230 |
|
231 |
|
232 |
|
233 |
|
234 | function parseData() {
|
235 |
|
236 | var memidx = 0;
|
237 |
|
238 | if (token.type === tokens.number) {
|
239 | memidx = token.value;
|
240 | eatTokenOfType(tokens.number);
|
241 | }
|
242 |
|
243 | eatTokenOfType(tokens.openParen);
|
244 | var offset;
|
245 |
|
246 | if (token.type === tokens.valtype) {
|
247 | eatTokenOfType(tokens.valtype);
|
248 |
|
249 | eatTokenOfType(tokens.dot);
|
250 |
|
251 | if (token.value !== "const") {
|
252 | throw new Error("constant expression required");
|
253 | }
|
254 |
|
255 | eatTokenOfType(tokens.name);
|
256 |
|
257 | var numberLiteral = t.numberLiteralFromRaw(token.value, "i32");
|
258 | offset = t.objectInstruction("const", "i32", [numberLiteral]);
|
259 | eatToken();
|
260 | eatTokenOfType(tokens.closeParen);
|
261 | } else {
|
262 | eatTokenOfType(tokens.name);
|
263 |
|
264 | var _numberLiteral = t.numberLiteralFromRaw(token.value, "i32");
|
265 |
|
266 | offset = t.instruction("get_global", [_numberLiteral]);
|
267 | eatToken();
|
268 | eatTokenOfType(tokens.closeParen);
|
269 | }
|
270 |
|
271 | var byteArray = parseString(token.value);
|
272 | eatToken();
|
273 |
|
274 | return t.data(t.memIndexLiteral(memidx), offset, t.byteArray(byteArray));
|
275 | }
|
276 | |
277 |
|
278 |
|
279 |
|
280 |
|
281 |
|
282 |
|
283 |
|
284 |
|
285 |
|
286 |
|
287 |
|
288 |
|
289 |
|
290 |
|
291 |
|
292 |
|
293 |
|
294 | function parseTable() {
|
295 | var name = t.identifier(getUniqueName("table"));
|
296 | var limit = t.limit(0);
|
297 | var elemIndices = [];
|
298 | var elemType = "anyfunc";
|
299 |
|
300 | if (token.type === tokens.string || token.type === tokens.identifier) {
|
301 | name = identifierFromToken(token);
|
302 | eatToken();
|
303 | } else {
|
304 | name = t.withRaw(name, "");
|
305 | }
|
306 |
|
307 | while (token.type !== tokens.closeParen) {
|
308 | |
309 |
|
310 |
|
311 | if (lookaheadAndCheck(tokens.openParen, keywords.elem)) {
|
312 | eatToken();
|
313 |
|
314 | eatToken();
|
315 |
|
316 | while (token.type === tokens.identifier) {
|
317 | elemIndices.push(t.identifier(token.value));
|
318 | eatToken();
|
319 | }
|
320 |
|
321 | eatTokenOfType(tokens.closeParen);
|
322 | } else if (lookaheadAndCheck(tokens.openParen, keywords["export"])) {
|
323 | eatToken();
|
324 |
|
325 | eatToken();
|
326 |
|
327 | if (token.type !== tokens.string) {
|
328 | throw function () {
|
329 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Expected string in export" + ", given " + tokenToString(token));
|
330 | }();
|
331 | }
|
332 |
|
333 | var exportName = token.value;
|
334 | eatToken();
|
335 | state.registredExportedElements.push({
|
336 | exportType: "Table",
|
337 | name: exportName,
|
338 | id: name
|
339 | });
|
340 | eatTokenOfType(tokens.closeParen);
|
341 | } else if (isKeyword(token, keywords.anyfunc)) {
|
342 |
|
343 | eatToken();
|
344 | } else if (token.type === tokens.number) {
|
345 | |
346 |
|
347 |
|
348 | var min = parseInt(token.value);
|
349 | eatToken();
|
350 |
|
351 | if (token.type === tokens.number) {
|
352 | var max = parseInt(token.value);
|
353 | eatToken();
|
354 | limit = t.limit(min, max);
|
355 | } else {
|
356 | limit = t.limit(min);
|
357 | }
|
358 |
|
359 | eatToken();
|
360 | } else {
|
361 | throw function () {
|
362 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token" + ", given " + tokenToString(token));
|
363 | }();
|
364 | }
|
365 | }
|
366 |
|
367 | if (elemIndices.length > 0) {
|
368 | return t.table(elemType, limit, name, elemIndices);
|
369 | } else {
|
370 | return t.table(elemType, limit, name);
|
371 | }
|
372 | }
|
373 | |
374 |
|
375 |
|
376 |
|
377 |
|
378 |
|
379 |
|
380 |
|
381 |
|
382 |
|
383 |
|
384 |
|
385 |
|
386 |
|
387 |
|
388 | function parseImport() {
|
389 | if (token.type !== tokens.string) {
|
390 | throw new Error("Expected a string, " + token.type + " given.");
|
391 | }
|
392 |
|
393 | var moduleName = token.value;
|
394 | eatToken();
|
395 |
|
396 | if (token.type !== tokens.string) {
|
397 | throw new Error("Expected a string, " + token.type + " given.");
|
398 | }
|
399 |
|
400 | var name = token.value;
|
401 | eatToken();
|
402 | eatTokenOfType(tokens.openParen);
|
403 | var descr;
|
404 |
|
405 | if (isKeyword(token, keywords.func)) {
|
406 | eatToken();
|
407 |
|
408 | var fnParams = [];
|
409 | var fnResult = [];
|
410 | var typeRef;
|
411 | var fnName = t.identifier(getUniqueName("func"));
|
412 |
|
413 | if (token.type === tokens.identifier) {
|
414 | fnName = identifierFromToken(token);
|
415 | eatToken();
|
416 | }
|
417 |
|
418 | while (token.type === tokens.openParen) {
|
419 | eatToken();
|
420 |
|
421 | if (lookaheadAndCheck(keywords.type) === true) {
|
422 | eatToken();
|
423 | typeRef = parseTypeReference();
|
424 | } else if (lookaheadAndCheck(keywords.param) === true) {
|
425 | eatToken();
|
426 | fnParams.push.apply(fnParams, _toConsumableArray(parseFuncParam()));
|
427 | } else if (lookaheadAndCheck(keywords.result) === true) {
|
428 | eatToken();
|
429 | fnResult.push.apply(fnResult, _toConsumableArray(parseFuncResult()));
|
430 | } else {
|
431 | throw function () {
|
432 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in import of type" + ", given " + tokenToString(token));
|
433 | }();
|
434 | }
|
435 |
|
436 | eatTokenOfType(tokens.closeParen);
|
437 | }
|
438 |
|
439 | if (typeof fnName === "undefined") {
|
440 | throw new Error("Imported function must have a name");
|
441 | }
|
442 |
|
443 | descr = t.funcImportDescr(fnName, typeRef !== undefined ? typeRef : t.signature(fnParams, fnResult));
|
444 | } else if (isKeyword(token, keywords.global)) {
|
445 | eatToken();
|
446 |
|
447 | if (token.type === tokens.openParen) {
|
448 | eatToken();
|
449 |
|
450 | eatTokenOfType(tokens.keyword);
|
451 |
|
452 | var valtype = token.value;
|
453 | eatToken();
|
454 | descr = t.globalType(valtype, "var");
|
455 | eatTokenOfType(tokens.closeParen);
|
456 | } else {
|
457 | var _valtype = token.value;
|
458 | eatTokenOfType(tokens.valtype);
|
459 | descr = t.globalType(_valtype, "const");
|
460 | }
|
461 | } else if (isKeyword(token, keywords.memory) === true) {
|
462 | eatToken();
|
463 |
|
464 | descr = parseMemory();
|
465 | } else if (isKeyword(token, keywords.table) === true) {
|
466 | eatToken();
|
467 |
|
468 | descr = parseTable();
|
469 | } else {
|
470 | throw new Error("Unsupported import type: " + tokenToString(token));
|
471 | }
|
472 |
|
473 | eatTokenOfType(tokens.closeParen);
|
474 | return t.moduleImport(moduleName, name, descr);
|
475 | }
|
476 | |
477 |
|
478 |
|
479 |
|
480 |
|
481 |
|
482 |
|
483 |
|
484 |
|
485 |
|
486 |
|
487 |
|
488 | function parseBlock() {
|
489 | var label = t.identifier(getUniqueName("block"));
|
490 | var blockResult = null;
|
491 | var instr = [];
|
492 |
|
493 | if (token.type === tokens.identifier) {
|
494 | label = identifierFromToken(token);
|
495 | eatToken();
|
496 | } else {
|
497 | label = t.withRaw(label, "");
|
498 | }
|
499 |
|
500 | while (token.type === tokens.openParen) {
|
501 | eatToken();
|
502 |
|
503 | if (lookaheadAndCheck(keywords.result) === true) {
|
504 | eatToken();
|
505 | blockResult = token.value;
|
506 | eatToken();
|
507 | } else if (lookaheadAndCheck(tokens.name) === true || lookaheadAndCheck(tokens.valtype) === true || token.type === "keyword"
|
508 | ) {
|
509 |
|
510 | instr.push(parseFuncInstr());
|
511 | } else {
|
512 | throw function () {
|
513 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in block body of type" + ", given " + tokenToString(token));
|
514 | }();
|
515 | }
|
516 |
|
517 | maybeIgnoreComment();
|
518 | eatTokenOfType(tokens.closeParen);
|
519 | }
|
520 |
|
521 | return t.blockInstruction(label, instr, blockResult);
|
522 | }
|
523 | |
524 |
|
525 |
|
526 |
|
527 |
|
528 |
|
529 |
|
530 |
|
531 |
|
532 |
|
533 |
|
534 |
|
535 |
|
536 |
|
537 |
|
538 |
|
539 |
|
540 |
|
541 | function parseIf() {
|
542 | var blockResult = null;
|
543 | var label = t.identifier(getUniqueName("if"));
|
544 | var testInstrs = [];
|
545 | var consequent = [];
|
546 | var alternate = [];
|
547 |
|
548 | if (token.type === tokens.identifier) {
|
549 | label = identifierFromToken(token);
|
550 | eatToken();
|
551 | } else {
|
552 | label = t.withRaw(label, "");
|
553 | }
|
554 |
|
555 | while (token.type === tokens.openParen) {
|
556 | eatToken();
|
557 |
|
558 | |
559 |
|
560 |
|
561 |
|
562 | if (isKeyword(token, keywords.result) === true) {
|
563 | eatToken();
|
564 | blockResult = token.value;
|
565 | eatTokenOfType(tokens.valtype);
|
566 | eatTokenOfType(tokens.closeParen);
|
567 | continue;
|
568 | }
|
569 | |
570 |
|
571 |
|
572 |
|
573 |
|
574 | if (isKeyword(token, keywords.then) === true) {
|
575 | eatToken();
|
576 |
|
577 | while (token.type === tokens.openParen) {
|
578 | eatToken();
|
579 |
|
580 | if (lookaheadAndCheck(tokens.name) === true || lookaheadAndCheck(tokens.valtype) === true || token.type === "keyword"
|
581 | ) {
|
582 | consequent.push(parseFuncInstr());
|
583 | } else {
|
584 | throw function () {
|
585 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in consequent body of type" + ", given " + tokenToString(token));
|
586 | }();
|
587 | }
|
588 |
|
589 | eatTokenOfType(tokens.closeParen);
|
590 | }
|
591 |
|
592 | eatTokenOfType(tokens.closeParen);
|
593 | continue;
|
594 | }
|
595 | |
596 |
|
597 |
|
598 |
|
599 |
|
600 | if (isKeyword(token, keywords["else"])) {
|
601 | eatToken();
|
602 |
|
603 | while (token.type === tokens.openParen) {
|
604 | eatToken();
|
605 |
|
606 | if (lookaheadAndCheck(tokens.name) === true || lookaheadAndCheck(tokens.valtype) === true || token.type === "keyword"
|
607 | ) {
|
608 | alternate.push(parseFuncInstr());
|
609 | } else {
|
610 | throw function () {
|
611 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in alternate body of type" + ", given " + tokenToString(token));
|
612 | }();
|
613 | }
|
614 |
|
615 | eatTokenOfType(tokens.closeParen);
|
616 | }
|
617 |
|
618 | eatTokenOfType(tokens.closeParen);
|
619 | continue;
|
620 | }
|
621 | |
622 |
|
623 |
|
624 |
|
625 |
|
626 | if (lookaheadAndCheck(tokens.name) === true || lookaheadAndCheck(tokens.valtype) === true || token.type === "keyword"
|
627 | ) {
|
628 | testInstrs.push(parseFuncInstr());
|
629 | eatTokenOfType(tokens.closeParen);
|
630 | continue;
|
631 | }
|
632 |
|
633 | throw function () {
|
634 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in if body" + ", given " + tokenToString(token));
|
635 | }();
|
636 | }
|
637 |
|
638 | return t.ifInstruction(label, testInstrs, blockResult, consequent, alternate);
|
639 | }
|
640 | |
641 |
|
642 |
|
643 |
|
644 |
|
645 |
|
646 |
|
647 |
|
648 |
|
649 |
|
650 |
|
651 |
|
652 |
|
653 |
|
654 |
|
655 |
|
656 | function parseLoop() {
|
657 | var label = t.identifier(getUniqueName("loop"));
|
658 | var blockResult;
|
659 | var instr = [];
|
660 |
|
661 | if (token.type === tokens.identifier) {
|
662 | label = identifierFromToken(token);
|
663 | eatToken();
|
664 | } else {
|
665 | label = t.withRaw(label, "");
|
666 | }
|
667 |
|
668 | while (token.type === tokens.openParen) {
|
669 | eatToken();
|
670 |
|
671 | if (lookaheadAndCheck(keywords.result) === true) {
|
672 | eatToken();
|
673 | blockResult = token.value;
|
674 | eatToken();
|
675 | } else if (lookaheadAndCheck(tokens.name) === true || lookaheadAndCheck(tokens.valtype) === true || token.type === "keyword"
|
676 | ) {
|
677 |
|
678 | instr.push(parseFuncInstr());
|
679 | } else {
|
680 | throw function () {
|
681 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in loop body" + ", given " + tokenToString(token));
|
682 | }();
|
683 | }
|
684 |
|
685 | eatTokenOfType(tokens.closeParen);
|
686 | }
|
687 |
|
688 | return t.loopInstruction(label, blockResult, instr);
|
689 | }
|
690 |
|
691 | function parseCallIndirect() {
|
692 | var typeRef;
|
693 | var params = [];
|
694 | var results = [];
|
695 | var instrs = [];
|
696 |
|
697 | while (token.type !== tokens.closeParen) {
|
698 | if (lookaheadAndCheck(tokens.openParen, keywords.type)) {
|
699 | eatToken();
|
700 |
|
701 | eatToken();
|
702 |
|
703 | typeRef = parseTypeReference();
|
704 | } else if (lookaheadAndCheck(tokens.openParen, keywords.param)) {
|
705 | eatToken();
|
706 |
|
707 | eatToken();
|
708 |
|
709 | |
710 |
|
711 |
|
712 |
|
713 |
|
714 | if (token.type !== tokens.closeParen) {
|
715 | params.push.apply(params, _toConsumableArray(parseFuncParam()));
|
716 | }
|
717 | } else if (lookaheadAndCheck(tokens.openParen, keywords.result)) {
|
718 | eatToken();
|
719 |
|
720 | eatToken();
|
721 |
|
722 | |
723 |
|
724 |
|
725 |
|
726 |
|
727 | if (token.type !== tokens.closeParen) {
|
728 | results.push.apply(results, _toConsumableArray(parseFuncResult()));
|
729 | }
|
730 | } else {
|
731 | eatTokenOfType(tokens.openParen);
|
732 | instrs.push(parseFuncInstr());
|
733 | }
|
734 |
|
735 | eatTokenOfType(tokens.closeParen);
|
736 | }
|
737 |
|
738 | return t.callIndirectInstruction(typeRef !== undefined ? typeRef : t.signature(params, results), instrs);
|
739 | }
|
740 | |
741 |
|
742 |
|
743 |
|
744 |
|
745 |
|
746 |
|
747 |
|
748 |
|
749 |
|
750 |
|
751 |
|
752 |
|
753 |
|
754 |
|
755 | function parseExport() {
|
756 | if (token.type !== tokens.string) {
|
757 | throw new Error("Expected string after export, got: " + token.type);
|
758 | }
|
759 |
|
760 | var name = token.value;
|
761 | eatToken();
|
762 | var moduleExportDescr = parseModuleExportDescr();
|
763 | return t.moduleExport(name, moduleExportDescr);
|
764 | }
|
765 |
|
766 | function parseModuleExportDescr() {
|
767 | var startLoc = getStartLoc();
|
768 | var type = "";
|
769 | var index;
|
770 | eatTokenOfType(tokens.openParen);
|
771 |
|
772 | while (token.type !== tokens.closeParen) {
|
773 | if (isKeyword(token, keywords.func)) {
|
774 | type = "Func";
|
775 | eatToken();
|
776 | index = parseExportIndex(token);
|
777 | } else if (isKeyword(token, keywords.table)) {
|
778 | type = "Table";
|
779 | eatToken();
|
780 | index = parseExportIndex(token);
|
781 | } else if (isKeyword(token, keywords.global)) {
|
782 | type = "Global";
|
783 | eatToken();
|
784 | index = parseExportIndex(token);
|
785 | } else if (isKeyword(token, keywords.memory)) {
|
786 | type = "Memory";
|
787 | eatToken();
|
788 | index = parseExportIndex(token);
|
789 | }
|
790 |
|
791 | eatToken();
|
792 | }
|
793 |
|
794 | if (type === "") {
|
795 | throw new Error("Unknown export type");
|
796 | }
|
797 |
|
798 | if (index === undefined) {
|
799 | throw new Error("Exported function must have a name");
|
800 | }
|
801 |
|
802 | var node = t.moduleExportDescr(type, index);
|
803 | var endLoc = getEndLoc();
|
804 | eatTokenOfType(tokens.closeParen);
|
805 | return t.withLoc(node, endLoc, startLoc);
|
806 | }
|
807 |
|
808 | function parseModule() {
|
809 | var name = null;
|
810 | var isBinary = false;
|
811 | var isQuote = false;
|
812 | var moduleFields = [];
|
813 |
|
814 | if (token.type === tokens.identifier) {
|
815 | name = token.value;
|
816 | eatToken();
|
817 | }
|
818 |
|
819 | if (hasPlugin("wast") && token.type === tokens.name && token.value === "binary") {
|
820 | eatToken();
|
821 | isBinary = true;
|
822 | }
|
823 |
|
824 | if (hasPlugin("wast") && token.type === tokens.name && token.value === "quote") {
|
825 | eatToken();
|
826 | isQuote = true;
|
827 | }
|
828 |
|
829 | if (isBinary === true) {
|
830 | var blob = [];
|
831 |
|
832 | while (token.type === tokens.string) {
|
833 | blob.push(token.value);
|
834 | eatToken();
|
835 | maybeIgnoreComment();
|
836 | }
|
837 |
|
838 | eatTokenOfType(tokens.closeParen);
|
839 | return t.binaryModule(name, blob);
|
840 | }
|
841 |
|
842 | if (isQuote === true) {
|
843 | var string = [];
|
844 |
|
845 | while (token.type === tokens.string) {
|
846 | string.push(token.value);
|
847 | eatToken();
|
848 | }
|
849 |
|
850 | eatTokenOfType(tokens.closeParen);
|
851 | return t.quoteModule(name, string);
|
852 | }
|
853 |
|
854 | while (token.type !== tokens.closeParen) {
|
855 | moduleFields.push(walk());
|
856 |
|
857 | if (state.registredExportedElements.length > 0) {
|
858 | state.registredExportedElements.forEach(function (decl) {
|
859 | moduleFields.push(t.moduleExport(decl.name, t.moduleExportDescr(decl.exportType, decl.id)));
|
860 | });
|
861 | state.registredExportedElements = [];
|
862 | }
|
863 |
|
864 | token = tokensList[current];
|
865 | }
|
866 |
|
867 | eatTokenOfType(tokens.closeParen);
|
868 | return t.module(name, moduleFields);
|
869 | }
|
870 | |
871 |
|
872 |
|
873 |
|
874 |
|
875 | function parseFuncInstrArguments(signature) {
|
876 | var args = [];
|
877 | var namedArgs = {};
|
878 | var signaturePtr = 0;
|
879 |
|
880 | while (token.type === tokens.name || isKeyword(token, keywords.offset)) {
|
881 | var key = token.value;
|
882 | eatToken();
|
883 | eatTokenOfType(tokens.equal);
|
884 | var value = void 0;
|
885 |
|
886 | if (token.type === tokens.number) {
|
887 | value = t.numberLiteralFromRaw(token.value);
|
888 | } else {
|
889 | throw new Error("Unexpected type for argument: " + token.type);
|
890 | }
|
891 |
|
892 | namedArgs[key] = value;
|
893 | eatToken();
|
894 | }
|
895 |
|
896 |
|
897 | var signatureLength = signature.vector ? Infinity : signature.length;
|
898 |
|
899 | while (token.type !== tokens.closeParen && (token.type === tokens.openParen || signaturePtr < signatureLength)) {
|
900 | if (token.type === tokens.identifier) {
|
901 | args.push(t.identifier(token.value));
|
902 | eatToken();
|
903 | } else if (token.type === tokens.valtype) {
|
904 |
|
905 | args.push(t.valtypeLiteral(token.value));
|
906 | eatToken();
|
907 | } else if (token.type === tokens.string) {
|
908 | args.push(t.stringLiteral(token.value));
|
909 | eatToken();
|
910 | } else if (token.type === tokens.number) {
|
911 | args.push(
|
912 |
|
913 | t.numberLiteralFromRaw(token.value,
|
914 | signature[signaturePtr] || "f64"));
|
915 |
|
916 | if (!signature.vector) {
|
917 | ++signaturePtr;
|
918 | }
|
919 |
|
920 | eatToken();
|
921 | } else if (token.type === tokens.openParen) {
|
922 | |
923 |
|
924 |
|
925 | eatToken();
|
926 |
|
927 | if (lookaheadAndCheck(tokens.name) === true || lookaheadAndCheck(tokens.valtype) === true || token.type === "keyword"
|
928 | ) {
|
929 |
|
930 | args.push(parseFuncInstr());
|
931 | } else {
|
932 | throw function () {
|
933 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in nested instruction" + ", given " + tokenToString(token));
|
934 | }();
|
935 | }
|
936 |
|
937 | if (token.type === tokens.closeParen) {
|
938 | eatToken();
|
939 | }
|
940 | } else {
|
941 | throw function () {
|
942 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in instruction argument" + ", given " + tokenToString(token));
|
943 | }();
|
944 | }
|
945 | }
|
946 |
|
947 | return {
|
948 | args: args,
|
949 | namedArgs: namedArgs
|
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 | function parseFuncInstr() {
|
1023 | var startLoc = getStartLoc();
|
1024 | maybeIgnoreComment();
|
1025 | |
1026 |
|
1027 |
|
1028 |
|
1029 | if (token.type === tokens.name || token.type === tokens.valtype) {
|
1030 | var name = token.value;
|
1031 | var object;
|
1032 | eatToken();
|
1033 |
|
1034 | if (token.type === tokens.dot) {
|
1035 | object = name;
|
1036 | var name_parts = [];
|
1037 |
|
1038 | do {
|
1039 | eatToken();
|
1040 |
|
1041 | if (token.type !== tokens.name) {
|
1042 | throw new TypeError("Unknown token: " + token.type + ", name expected");
|
1043 | }
|
1044 |
|
1045 | name_parts.push(token.value);
|
1046 | eatToken();
|
1047 | } while (token.type === tokens.dot);
|
1048 |
|
1049 | name = name_parts.join(".");
|
1050 | }
|
1051 |
|
1052 | if (token.type === tokens.closeParen) {
|
1053 | var _endLoc = token.loc.end;
|
1054 |
|
1055 | if (typeof object === "undefined") {
|
1056 | return t.withLoc(t.instruction(name), _endLoc, startLoc);
|
1057 | } else {
|
1058 | return t.withLoc(t.objectInstruction(name, object, []), _endLoc, startLoc);
|
1059 | }
|
1060 | }
|
1061 |
|
1062 | var signature = t.signatureForOpcode(object || "", name);
|
1063 |
|
1064 | var _parseFuncInstrArgume = parseFuncInstrArguments(signature),
|
1065 | args = _parseFuncInstrArgume.args,
|
1066 | namedArgs = _parseFuncInstrArgume.namedArgs;
|
1067 |
|
1068 | var endLoc = token.loc.end;
|
1069 |
|
1070 | if (typeof object === "undefined") {
|
1071 | return t.withLoc(t.instruction(name, args, namedArgs), endLoc, startLoc);
|
1072 | } else {
|
1073 | return t.withLoc(t.objectInstruction(name, object, args, namedArgs), endLoc, startLoc);
|
1074 | }
|
1075 | } else if (isKeyword(token, keywords.loop)) {
|
1076 | |
1077 |
|
1078 |
|
1079 | eatToken();
|
1080 |
|
1081 | return parseLoop();
|
1082 | } else if (isKeyword(token, keywords.block)) {
|
1083 | eatToken();
|
1084 |
|
1085 | return parseBlock();
|
1086 | } else if (isKeyword(token, keywords.call_indirect)) {
|
1087 | eatToken();
|
1088 |
|
1089 | return parseCallIndirect();
|
1090 | } else if (isKeyword(token, keywords.call)) {
|
1091 | eatToken();
|
1092 |
|
1093 | var index;
|
1094 |
|
1095 | if (token.type === tokens.identifier) {
|
1096 | index = identifierFromToken(token);
|
1097 | eatToken();
|
1098 | } else if (token.type === tokens.number) {
|
1099 | index = t.indexLiteral(token.value);
|
1100 | eatToken();
|
1101 | }
|
1102 |
|
1103 | var instrArgs = [];
|
1104 |
|
1105 | while (token.type === tokens.openParen) {
|
1106 | eatToken();
|
1107 | instrArgs.push(parseFuncInstr());
|
1108 | eatTokenOfType(tokens.closeParen);
|
1109 | }
|
1110 |
|
1111 | if (typeof index === "undefined") {
|
1112 | throw new Error("Missing argument in call instruciton");
|
1113 | }
|
1114 |
|
1115 | if (instrArgs.length > 0) {
|
1116 | return t.callInstruction(index, instrArgs);
|
1117 | } else {
|
1118 | return t.callInstruction(index);
|
1119 | }
|
1120 | } else if (isKeyword(token, keywords["if"])) {
|
1121 | eatToken();
|
1122 |
|
1123 | return parseIf();
|
1124 | } else if (isKeyword(token, keywords.module) && hasPlugin("wast")) {
|
1125 | eatToken();
|
1126 |
|
1127 |
|
1128 |
|
1129 | var module = parseModule();
|
1130 | return module;
|
1131 | } else {
|
1132 | throw function () {
|
1133 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected instruction in function body" + ", given " + tokenToString(token));
|
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 | function parseFunc() {
|
1160 | var fnName = t.identifier(getUniqueName("func"));
|
1161 | var typeRef;
|
1162 | var fnBody = [];
|
1163 | var fnParams = [];
|
1164 | var fnResult = [];
|
1165 |
|
1166 | if (token.type === tokens.identifier) {
|
1167 | fnName = identifierFromToken(token);
|
1168 | eatToken();
|
1169 | } else {
|
1170 | fnName = t.withRaw(fnName, "");
|
1171 | }
|
1172 |
|
1173 | maybeIgnoreComment();
|
1174 |
|
1175 | while (token.type === tokens.openParen || token.type === tokens.name || token.type === tokens.valtype) {
|
1176 |
|
1177 | if (token.type === tokens.name || token.type === tokens.valtype) {
|
1178 | fnBody.push(parseFuncInstr());
|
1179 | continue;
|
1180 | }
|
1181 |
|
1182 | eatToken();
|
1183 |
|
1184 | if (lookaheadAndCheck(keywords.param) === true) {
|
1185 | eatToken();
|
1186 | fnParams.push.apply(fnParams, _toConsumableArray(parseFuncParam()));
|
1187 | } else if (lookaheadAndCheck(keywords.result) === true) {
|
1188 | eatToken();
|
1189 | fnResult.push.apply(fnResult, _toConsumableArray(parseFuncResult()));
|
1190 | } else if (lookaheadAndCheck(keywords["export"]) === true) {
|
1191 | eatToken();
|
1192 | parseFuncExport(fnName);
|
1193 | } else if (lookaheadAndCheck(keywords.type) === true) {
|
1194 | eatToken();
|
1195 | typeRef = parseTypeReference();
|
1196 | } else if (lookaheadAndCheck(tokens.name) === true || lookaheadAndCheck(tokens.valtype) === true || token.type === "keyword"
|
1197 | ) {
|
1198 |
|
1199 | fnBody.push(parseFuncInstr());
|
1200 | } else {
|
1201 | throw function () {
|
1202 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in func body" + ", given " + tokenToString(token));
|
1203 | }();
|
1204 | }
|
1205 |
|
1206 | eatTokenOfType(tokens.closeParen);
|
1207 | }
|
1208 |
|
1209 | return t.func(fnName, typeRef !== undefined ? typeRef : t.signature(fnParams, fnResult), fnBody);
|
1210 | }
|
1211 | |
1212 |
|
1213 |
|
1214 |
|
1215 |
|
1216 |
|
1217 |
|
1218 | function parseFuncExport(funcId) {
|
1219 | if (token.type !== tokens.string) {
|
1220 | throw function () {
|
1221 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Function export expected a string" + ", given " + tokenToString(token));
|
1222 | }();
|
1223 | }
|
1224 |
|
1225 | var name = token.value;
|
1226 | eatToken();
|
1227 | |
1228 |
|
1229 |
|
1230 |
|
1231 |
|
1232 |
|
1233 |
|
1234 | var id = t.identifier(funcId.value);
|
1235 | state.registredExportedElements.push({
|
1236 | exportType: "Func",
|
1237 | name: name,
|
1238 | id: id
|
1239 | });
|
1240 | }
|
1241 | |
1242 |
|
1243 |
|
1244 |
|
1245 |
|
1246 |
|
1247 |
|
1248 |
|
1249 |
|
1250 | function parseType() {
|
1251 | var id;
|
1252 | var params = [];
|
1253 | var result = [];
|
1254 |
|
1255 | if (token.type === tokens.identifier) {
|
1256 | id = identifierFromToken(token);
|
1257 | eatToken();
|
1258 | }
|
1259 |
|
1260 | if (lookaheadAndCheck(tokens.openParen, keywords.func)) {
|
1261 | eatToken();
|
1262 |
|
1263 | eatToken();
|
1264 |
|
1265 | if (token.type === tokens.closeParen) {
|
1266 | eatToken();
|
1267 |
|
1268 | return t.typeInstruction(id, t.signature([], []));
|
1269 | }
|
1270 |
|
1271 | if (lookaheadAndCheck(tokens.openParen, keywords.param)) {
|
1272 | eatToken();
|
1273 |
|
1274 | eatToken();
|
1275 |
|
1276 | params = parseFuncParam();
|
1277 | eatTokenOfType(tokens.closeParen);
|
1278 | }
|
1279 |
|
1280 | if (lookaheadAndCheck(tokens.openParen, keywords.result)) {
|
1281 | eatToken();
|
1282 |
|
1283 | eatToken();
|
1284 |
|
1285 | result = parseFuncResult();
|
1286 | eatTokenOfType(tokens.closeParen);
|
1287 | }
|
1288 |
|
1289 | eatTokenOfType(tokens.closeParen);
|
1290 | }
|
1291 |
|
1292 | return t.typeInstruction(id, t.signature(params, result));
|
1293 | }
|
1294 | |
1295 |
|
1296 |
|
1297 |
|
1298 |
|
1299 |
|
1300 |
|
1301 |
|
1302 |
|
1303 | function parseFuncResult() {
|
1304 | var results = [];
|
1305 |
|
1306 | while (token.type !== tokens.closeParen) {
|
1307 | if (token.type !== tokens.valtype) {
|
1308 | throw function () {
|
1309 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unexpected token in func result" + ", given " + tokenToString(token));
|
1310 | }();
|
1311 | }
|
1312 |
|
1313 | var valtype = token.value;
|
1314 | eatToken();
|
1315 | results.push(valtype);
|
1316 | }
|
1317 |
|
1318 | return results;
|
1319 | }
|
1320 | |
1321 |
|
1322 |
|
1323 |
|
1324 |
|
1325 |
|
1326 | function parseTypeReference() {
|
1327 | var ref;
|
1328 |
|
1329 | if (token.type === tokens.identifier) {
|
1330 | ref = identifierFromToken(token);
|
1331 | eatToken();
|
1332 | } else if (token.type === tokens.number) {
|
1333 | ref = t.numberLiteralFromRaw(token.value);
|
1334 | eatToken();
|
1335 | }
|
1336 |
|
1337 | return ref;
|
1338 | }
|
1339 | |
1340 |
|
1341 |
|
1342 |
|
1343 |
|
1344 |
|
1345 |
|
1346 |
|
1347 |
|
1348 |
|
1349 |
|
1350 |
|
1351 |
|
1352 |
|
1353 | function parseGlobal() {
|
1354 | var name = t.identifier(getUniqueName("global"));
|
1355 | var type;
|
1356 |
|
1357 | var importing = null;
|
1358 | maybeIgnoreComment();
|
1359 |
|
1360 | if (token.type === tokens.identifier) {
|
1361 | name = identifierFromToken(token);
|
1362 | eatToken();
|
1363 | } else {
|
1364 | name = t.withRaw(name, "");
|
1365 | }
|
1366 | |
1367 |
|
1368 |
|
1369 |
|
1370 |
|
1371 | if (lookaheadAndCheck(tokens.openParen, keywords["export"])) {
|
1372 | eatToken();
|
1373 |
|
1374 | eatToken();
|
1375 |
|
1376 | var exportName = token.value;
|
1377 | eatTokenOfType(tokens.string);
|
1378 | state.registredExportedElements.push({
|
1379 | exportType: "Global",
|
1380 | name: exportName,
|
1381 | id: name
|
1382 | });
|
1383 | eatTokenOfType(tokens.closeParen);
|
1384 | }
|
1385 | |
1386 |
|
1387 |
|
1388 |
|
1389 |
|
1390 | if (lookaheadAndCheck(tokens.openParen, keywords["import"])) {
|
1391 | eatToken();
|
1392 |
|
1393 | eatToken();
|
1394 |
|
1395 | var moduleName = token.value;
|
1396 | eatTokenOfType(tokens.string);
|
1397 | var _name = token.value;
|
1398 | eatTokenOfType(tokens.string);
|
1399 | importing = {
|
1400 | module: moduleName,
|
1401 | name: _name,
|
1402 | descr: undefined
|
1403 | };
|
1404 | eatTokenOfType(tokens.closeParen);
|
1405 | }
|
1406 | |
1407 |
|
1408 |
|
1409 |
|
1410 |
|
1411 | if (token.type === tokens.valtype) {
|
1412 | type = t.globalType(token.value, "const");
|
1413 | eatToken();
|
1414 | } else if (token.type === tokens.openParen) {
|
1415 | eatToken();
|
1416 |
|
1417 | if (isKeyword(token, keywords.mut) === false) {
|
1418 | throw function () {
|
1419 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unsupported global type, expected mut" + ", given " + tokenToString(token));
|
1420 | }();
|
1421 | }
|
1422 |
|
1423 | eatToken();
|
1424 |
|
1425 | type = t.globalType(token.value, "var");
|
1426 | eatToken();
|
1427 | eatTokenOfType(tokens.closeParen);
|
1428 | }
|
1429 |
|
1430 | if (type === undefined) {
|
1431 | throw function () {
|
1432 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Could not determine global type" + ", given " + tokenToString(token));
|
1433 | }();
|
1434 | }
|
1435 |
|
1436 | maybeIgnoreComment();
|
1437 | var init = [];
|
1438 |
|
1439 | if (importing != null) {
|
1440 | importing.descr = type;
|
1441 | init.push(t.moduleImport(importing.module, importing.name, importing.descr));
|
1442 | }
|
1443 | |
1444 |
|
1445 |
|
1446 |
|
1447 |
|
1448 | while (token.type === tokens.openParen) {
|
1449 | eatToken();
|
1450 | init.push(parseFuncInstr());
|
1451 | eatTokenOfType(tokens.closeParen);
|
1452 | }
|
1453 |
|
1454 | return t.global(type, init, name);
|
1455 | }
|
1456 | |
1457 |
|
1458 |
|
1459 |
|
1460 |
|
1461 |
|
1462 |
|
1463 |
|
1464 |
|
1465 | function parseFuncParam() {
|
1466 | var params = [];
|
1467 | var id;
|
1468 | var valtype;
|
1469 |
|
1470 | if (token.type === tokens.identifier) {
|
1471 | id = token.value;
|
1472 | eatToken();
|
1473 | }
|
1474 |
|
1475 | if (token.type === tokens.valtype) {
|
1476 | valtype = token.value;
|
1477 | eatToken();
|
1478 | params.push({
|
1479 | id: id,
|
1480 | valtype: valtype
|
1481 | });
|
1482 | |
1483 |
|
1484 |
|
1485 |
|
1486 |
|
1487 |
|
1488 | if (id === undefined) {
|
1489 | while (token.type === tokens.valtype) {
|
1490 | valtype = token.value;
|
1491 | eatToken();
|
1492 | params.push({
|
1493 | id: undefined,
|
1494 | valtype: valtype
|
1495 | });
|
1496 | }
|
1497 | }
|
1498 | } else {
|
1499 | }
|
1500 |
|
1501 | return params;
|
1502 | }
|
1503 | |
1504 |
|
1505 |
|
1506 |
|
1507 |
|
1508 |
|
1509 |
|
1510 |
|
1511 |
|
1512 |
|
1513 |
|
1514 |
|
1515 | function parseElem() {
|
1516 | var tableIndex = t.indexLiteral(0);
|
1517 | var offset = [];
|
1518 | var funcs = [];
|
1519 |
|
1520 | if (token.type === tokens.identifier) {
|
1521 | tableIndex = identifierFromToken(token);
|
1522 | eatToken();
|
1523 | }
|
1524 |
|
1525 | if (token.type === tokens.number) {
|
1526 | tableIndex = t.indexLiteral(token.value);
|
1527 | eatToken();
|
1528 | }
|
1529 |
|
1530 | while (token.type !== tokens.closeParen) {
|
1531 | if (lookaheadAndCheck(tokens.openParen, keywords.offset)) {
|
1532 | eatToken();
|
1533 |
|
1534 | eatToken();
|
1535 |
|
1536 | while (token.type !== tokens.closeParen) {
|
1537 | eatTokenOfType(tokens.openParen);
|
1538 | offset.push(parseFuncInstr());
|
1539 | eatTokenOfType(tokens.closeParen);
|
1540 | }
|
1541 |
|
1542 | eatTokenOfType(tokens.closeParen);
|
1543 | } else if (token.type === tokens.identifier) {
|
1544 | funcs.push(t.identifier(token.value));
|
1545 | eatToken();
|
1546 | } else if (token.type === tokens.number) {
|
1547 | funcs.push(t.indexLiteral(token.value));
|
1548 | eatToken();
|
1549 | } else if (token.type === tokens.openParen) {
|
1550 | eatToken();
|
1551 |
|
1552 | offset.push(parseFuncInstr());
|
1553 | eatTokenOfType(tokens.closeParen);
|
1554 | } else {
|
1555 | throw function () {
|
1556 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unsupported token in elem" + ", given " + tokenToString(token));
|
1557 | }();
|
1558 | }
|
1559 | }
|
1560 |
|
1561 | return t.elem(tableIndex, offset, funcs);
|
1562 | }
|
1563 | |
1564 |
|
1565 |
|
1566 |
|
1567 |
|
1568 |
|
1569 |
|
1570 |
|
1571 |
|
1572 |
|
1573 |
|
1574 |
|
1575 |
|
1576 | function parseStart() {
|
1577 | if (token.type === tokens.identifier) {
|
1578 | var index = identifierFromToken(token);
|
1579 | eatToken();
|
1580 | return t.start(index);
|
1581 | }
|
1582 |
|
1583 | if (token.type === tokens.number) {
|
1584 | var _index2 = t.indexLiteral(token.value);
|
1585 |
|
1586 | eatToken();
|
1587 | return t.start(_index2);
|
1588 | }
|
1589 |
|
1590 | throw new Error("Unknown start, token: " + tokenToString(token));
|
1591 | }
|
1592 |
|
1593 | if (token.type === tokens.openParen) {
|
1594 | eatToken();
|
1595 | var startLoc = getStartLoc();
|
1596 |
|
1597 | if (isKeyword(token, keywords["export"])) {
|
1598 | eatToken();
|
1599 | var node = parseExport();
|
1600 |
|
1601 | var _endLoc2 = getEndLoc();
|
1602 |
|
1603 | return t.withLoc(node, _endLoc2, startLoc);
|
1604 | }
|
1605 |
|
1606 | if (isKeyword(token, keywords.loop)) {
|
1607 | eatToken();
|
1608 |
|
1609 | var _node = parseLoop();
|
1610 |
|
1611 | var _endLoc3 = getEndLoc();
|
1612 |
|
1613 | return t.withLoc(_node, _endLoc3, startLoc);
|
1614 | }
|
1615 |
|
1616 | if (isKeyword(token, keywords.func)) {
|
1617 | eatToken();
|
1618 |
|
1619 | var _node2 = parseFunc();
|
1620 |
|
1621 | var _endLoc4 = getEndLoc();
|
1622 |
|
1623 | maybeIgnoreComment();
|
1624 | eatTokenOfType(tokens.closeParen);
|
1625 | return t.withLoc(_node2, _endLoc4, startLoc);
|
1626 | }
|
1627 |
|
1628 | if (isKeyword(token, keywords.module)) {
|
1629 | eatToken();
|
1630 |
|
1631 | var _node3 = parseModule();
|
1632 |
|
1633 | var _endLoc5 = getEndLoc();
|
1634 |
|
1635 | return t.withLoc(_node3, _endLoc5, startLoc);
|
1636 | }
|
1637 |
|
1638 | if (isKeyword(token, keywords["import"])) {
|
1639 | eatToken();
|
1640 |
|
1641 | var _node4 = parseImport();
|
1642 |
|
1643 | var _endLoc6 = getEndLoc();
|
1644 |
|
1645 | eatTokenOfType(tokens.closeParen);
|
1646 | return t.withLoc(_node4, _endLoc6, startLoc);
|
1647 | }
|
1648 |
|
1649 | if (isKeyword(token, keywords.block)) {
|
1650 | eatToken();
|
1651 |
|
1652 | var _node5 = parseBlock();
|
1653 |
|
1654 | var _endLoc7 = getEndLoc();
|
1655 |
|
1656 | eatTokenOfType(tokens.closeParen);
|
1657 | return t.withLoc(_node5, _endLoc7, startLoc);
|
1658 | }
|
1659 |
|
1660 | if (isKeyword(token, keywords.memory)) {
|
1661 | eatToken();
|
1662 |
|
1663 | var _node6 = parseMemory();
|
1664 |
|
1665 | var _endLoc8 = getEndLoc();
|
1666 |
|
1667 | eatTokenOfType(tokens.closeParen);
|
1668 | return t.withLoc(_node6, _endLoc8, startLoc);
|
1669 | }
|
1670 |
|
1671 | if (isKeyword(token, keywords.data)) {
|
1672 | eatToken();
|
1673 |
|
1674 | var _node7 = parseData();
|
1675 |
|
1676 | var _endLoc9 = getEndLoc();
|
1677 |
|
1678 | eatTokenOfType(tokens.closeParen);
|
1679 | return t.withLoc(_node7, _endLoc9, startLoc);
|
1680 | }
|
1681 |
|
1682 | if (isKeyword(token, keywords.table)) {
|
1683 | eatToken();
|
1684 |
|
1685 | var _node8 = parseTable();
|
1686 |
|
1687 | var _endLoc10 = getEndLoc();
|
1688 |
|
1689 | eatTokenOfType(tokens.closeParen);
|
1690 | return t.withLoc(_node8, _endLoc10, startLoc);
|
1691 | }
|
1692 |
|
1693 | if (isKeyword(token, keywords.global)) {
|
1694 | eatToken();
|
1695 |
|
1696 | var _node9 = parseGlobal();
|
1697 |
|
1698 | var _endLoc11 = getEndLoc();
|
1699 |
|
1700 | eatTokenOfType(tokens.closeParen);
|
1701 | return t.withLoc(_node9, _endLoc11, startLoc);
|
1702 | }
|
1703 |
|
1704 | if (isKeyword(token, keywords.type)) {
|
1705 | eatToken();
|
1706 |
|
1707 | var _node10 = parseType();
|
1708 |
|
1709 | var _endLoc12 = getEndLoc();
|
1710 |
|
1711 | eatTokenOfType(tokens.closeParen);
|
1712 | return t.withLoc(_node10, _endLoc12, startLoc);
|
1713 | }
|
1714 |
|
1715 | if (isKeyword(token, keywords.start)) {
|
1716 | eatToken();
|
1717 |
|
1718 | var _node11 = parseStart();
|
1719 |
|
1720 | var _endLoc13 = getEndLoc();
|
1721 |
|
1722 | eatTokenOfType(tokens.closeParen);
|
1723 | return t.withLoc(_node11, _endLoc13, startLoc);
|
1724 | }
|
1725 |
|
1726 | if (isKeyword(token, keywords.elem)) {
|
1727 | eatToken();
|
1728 |
|
1729 | var _node12 = parseElem();
|
1730 |
|
1731 | var _endLoc14 = getEndLoc();
|
1732 |
|
1733 | eatTokenOfType(tokens.closeParen);
|
1734 | return t.withLoc(_node12, _endLoc14, startLoc);
|
1735 | }
|
1736 |
|
1737 | var instruction = parseFuncInstr();
|
1738 | var endLoc = getEndLoc();
|
1739 | maybeIgnoreComment();
|
1740 |
|
1741 | if (_typeof(instruction) === "object") {
|
1742 | if (typeof token !== "undefined") {
|
1743 | eatTokenOfType(tokens.closeParen);
|
1744 | }
|
1745 |
|
1746 | return t.withLoc(instruction, endLoc, startLoc);
|
1747 | }
|
1748 | }
|
1749 |
|
1750 | if (token.type === tokens.comment) {
|
1751 | var _startLoc = getStartLoc();
|
1752 |
|
1753 | var builder = token.opts.type === "leading" ? t.leadingComment : t.blockComment;
|
1754 |
|
1755 | var _node13 = builder(token.value);
|
1756 |
|
1757 | eatToken();
|
1758 |
|
1759 | var _endLoc15 = getEndLoc();
|
1760 |
|
1761 | return t.withLoc(_node13, _endLoc15, _startLoc);
|
1762 | }
|
1763 |
|
1764 | throw function () {
|
1765 | return new Error("\n" + codeFrameFromSource(source, token.loc) + "\n" + "Unknown token" + ", given " + tokenToString(token));
|
1766 | }();
|
1767 | }
|
1768 |
|
1769 | var body = [];
|
1770 |
|
1771 | while (current < tokensList.length) {
|
1772 | body.push(walk());
|
1773 | }
|
1774 |
|
1775 | return t.program(body);
|
1776 | } |
\ | No newline at end of file |