source: node_modules/magic-string/dist/magic-string.umd.js@ 57e58a3

Last change on this file since 57e58a3 was 57e58a3, checked in by ste08 <sjovanoska@…>, 4 months ago

Initial commit
  • Property mode set to 100644
File size: 41.9 KB
Line 
1(function (global, factory) {
2 typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
3 typeof define === 'function' && define.amd ? define(factory) :
4 (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.MagicString = factory());
5})(this, (function () { 'use strict';
6
7 class BitSet {
8 constructor(arg) {
9 this.bits = arg instanceof BitSet ? arg.bits.slice() : [];
10 }
11
12 add(n) {
13 this.bits[n >> 5] |= 1 << (n & 31);
14 }
15
16 has(n) {
17 return !!(this.bits[n >> 5] & (1 << (n & 31)));
18 }
19 }
20
21 class Chunk {
22 constructor(start, end, content) {
23 this.start = start;
24 this.end = end;
25 this.original = content;
26
27 this.intro = '';
28 this.outro = '';
29
30 this.content = content;
31 this.storeName = false;
32 this.edited = false;
33
34 {
35 this.previous = null;
36 this.next = null;
37 }
38 }
39
40 appendLeft(content) {
41 this.outro += content;
42 }
43
44 appendRight(content) {
45 this.intro = this.intro + content;
46 }
47
48 clone() {
49 const chunk = new Chunk(this.start, this.end, this.original);
50
51 chunk.intro = this.intro;
52 chunk.outro = this.outro;
53 chunk.content = this.content;
54 chunk.storeName = this.storeName;
55 chunk.edited = this.edited;
56
57 return chunk;
58 }
59
60 contains(index) {
61 return this.start < index && index < this.end;
62 }
63
64 eachNext(fn) {
65 let chunk = this;
66 while (chunk) {
67 fn(chunk);
68 chunk = chunk.next;
69 }
70 }
71
72 eachPrevious(fn) {
73 let chunk = this;
74 while (chunk) {
75 fn(chunk);
76 chunk = chunk.previous;
77 }
78 }
79
80 edit(content, storeName, contentOnly) {
81 this.content = content;
82 if (!contentOnly) {
83 this.intro = '';
84 this.outro = '';
85 }
86 this.storeName = storeName;
87
88 this.edited = true;
89
90 return this;
91 }
92
93 prependLeft(content) {
94 this.outro = content + this.outro;
95 }
96
97 prependRight(content) {
98 this.intro = content + this.intro;
99 }
100
101 reset() {
102 this.intro = '';
103 this.outro = '';
104 if (this.edited) {
105 this.content = this.original;
106 this.storeName = false;
107 this.edited = false;
108 }
109 }
110
111 split(index) {
112 const sliceIndex = index - this.start;
113
114 const originalBefore = this.original.slice(0, sliceIndex);
115 const originalAfter = this.original.slice(sliceIndex);
116
117 this.original = originalBefore;
118
119 const newChunk = new Chunk(index, this.end, originalAfter);
120 newChunk.outro = this.outro;
121 this.outro = '';
122
123 this.end = index;
124
125 if (this.edited) {
126 // after split we should save the edit content record into the correct chunk
127 // to make sure sourcemap correct
128 // For example:
129 // ' test'.trim()
130 // split -> ' ' + 'test'
131 // ✔️ edit -> '' + 'test'
132 // ✖️ edit -> 'test' + ''
133 // TODO is this block necessary?...
134 newChunk.edit('', false);
135 this.content = '';
136 } else {
137 this.content = originalBefore;
138 }
139
140 newChunk.next = this.next;
141 if (newChunk.next) newChunk.next.previous = newChunk;
142 newChunk.previous = this;
143 this.next = newChunk;
144
145 return newChunk;
146 }
147
148 toString() {
149 return this.intro + this.content + this.outro;
150 }
151
152 trimEnd(rx) {
153 this.outro = this.outro.replace(rx, '');
154 if (this.outro.length) return true;
155
156 const trimmed = this.content.replace(rx, '');
157
158 if (trimmed.length) {
159 if (trimmed !== this.content) {
160 this.split(this.start + trimmed.length).edit('', undefined, true);
161 if (this.edited) {
162 // save the change, if it has been edited
163 this.edit(trimmed, this.storeName, true);
164 }
165 }
166 return true;
167 } else {
168 this.edit('', undefined, true);
169
170 this.intro = this.intro.replace(rx, '');
171 if (this.intro.length) return true;
172 }
173 }
174
175 trimStart(rx) {
176 this.intro = this.intro.replace(rx, '');
177 if (this.intro.length) return true;
178
179 const trimmed = this.content.replace(rx, '');
180
181 if (trimmed.length) {
182 if (trimmed !== this.content) {
183 const newChunk = this.split(this.end - trimmed.length);
184 if (this.edited) {
185 // save the change, if it has been edited
186 newChunk.edit(trimmed, this.storeName, true);
187 }
188 this.edit('', undefined, true);
189 }
190 return true;
191 } else {
192 this.edit('', undefined, true);
193
194 this.outro = this.outro.replace(rx, '');
195 if (this.outro.length) return true;
196 }
197 }
198 }
199
200 const comma = ','.charCodeAt(0);
201 const semicolon = ';'.charCodeAt(0);
202 const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
203 const intToChar = new Uint8Array(64); // 64 possible chars.
204 const charToInt = new Uint8Array(128); // z is 122 in ASCII
205 for (let i = 0; i < chars.length; i++) {
206 const c = chars.charCodeAt(i);
207 intToChar[i] = c;
208 charToInt[c] = i;
209 }
210 function encodeInteger(builder, num, relative) {
211 let delta = num - relative;
212 delta = delta < 0 ? (-delta << 1) | 1 : delta << 1;
213 do {
214 let clamped = delta & 0b011111;
215 delta >>>= 5;
216 if (delta > 0)
217 clamped |= 0b100000;
218 builder.write(intToChar[clamped]);
219 } while (delta > 0);
220 return num;
221 }
222
223 const bufLength = 1024 * 16;
224 // Provide a fallback for older environments.
225 const td = typeof TextDecoder !== 'undefined'
226 ? /* #__PURE__ */ new TextDecoder()
227 : typeof Buffer !== 'undefined'
228 ? {
229 decode(buf) {
230 const out = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
231 return out.toString();
232 },
233 }
234 : {
235 decode(buf) {
236 let out = '';
237 for (let i = 0; i < buf.length; i++) {
238 out += String.fromCharCode(buf[i]);
239 }
240 return out;
241 },
242 };
243 class StringWriter {
244 constructor() {
245 this.pos = 0;
246 this.out = '';
247 this.buffer = new Uint8Array(bufLength);
248 }
249 write(v) {
250 const { buffer } = this;
251 buffer[this.pos++] = v;
252 if (this.pos === bufLength) {
253 this.out += td.decode(buffer);
254 this.pos = 0;
255 }
256 }
257 flush() {
258 const { buffer, out, pos } = this;
259 return pos > 0 ? out + td.decode(buffer.subarray(0, pos)) : out;
260 }
261 }
262 function encode(decoded) {
263 const writer = new StringWriter();
264 let sourcesIndex = 0;
265 let sourceLine = 0;
266 let sourceColumn = 0;
267 let namesIndex = 0;
268 for (let i = 0; i < decoded.length; i++) {
269 const line = decoded[i];
270 if (i > 0)
271 writer.write(semicolon);
272 if (line.length === 0)
273 continue;
274 let genColumn = 0;
275 for (let j = 0; j < line.length; j++) {
276 const segment = line[j];
277 if (j > 0)
278 writer.write(comma);
279 genColumn = encodeInteger(writer, segment[0], genColumn);
280 if (segment.length === 1)
281 continue;
282 sourcesIndex = encodeInteger(writer, segment[1], sourcesIndex);
283 sourceLine = encodeInteger(writer, segment[2], sourceLine);
284 sourceColumn = encodeInteger(writer, segment[3], sourceColumn);
285 if (segment.length === 4)
286 continue;
287 namesIndex = encodeInteger(writer, segment[4], namesIndex);
288 }
289 }
290 return writer.flush();
291 }
292
293 function getBtoa() {
294 if (typeof globalThis !== 'undefined' && typeof globalThis.btoa === 'function') {
295 return (str) => globalThis.btoa(unescape(encodeURIComponent(str)));
296 } else if (typeof Buffer === 'function') {
297 return (str) => Buffer.from(str, 'utf-8').toString('base64');
298 } else {
299 return () => {
300 throw new Error('Unsupported environment: `window.btoa` or `Buffer` should be supported.');
301 };
302 }
303 }
304
305 const btoa = /*#__PURE__*/ getBtoa();
306
307 class SourceMap {
308 constructor(properties) {
309 this.version = 3;
310 this.file = properties.file;
311 this.sources = properties.sources;
312 this.sourcesContent = properties.sourcesContent;
313 this.names = properties.names;
314 this.mappings = encode(properties.mappings);
315 if (typeof properties.x_google_ignoreList !== 'undefined') {
316 this.x_google_ignoreList = properties.x_google_ignoreList;
317 }
318 if (typeof properties.debugId !== 'undefined') {
319 this.debugId = properties.debugId;
320 }
321 }
322
323 toString() {
324 return JSON.stringify(this);
325 }
326
327 toUrl() {
328 return 'data:application/json;charset=utf-8;base64,' + btoa(this.toString());
329 }
330 }
331
332 function guessIndent(code) {
333 const lines = code.split('\n');
334
335 const tabbed = lines.filter((line) => /^\t+/.test(line));
336 const spaced = lines.filter((line) => /^ {2,}/.test(line));
337
338 if (tabbed.length === 0 && spaced.length === 0) {
339 return null;
340 }
341
342 // More lines tabbed than spaced? Assume tabs, and
343 // default to tabs in the case of a tie (or nothing
344 // to go on)
345 if (tabbed.length >= spaced.length) {
346 return '\t';
347 }
348
349 // Otherwise, we need to guess the multiple
350 const min = spaced.reduce((previous, current) => {
351 const numSpaces = /^ +/.exec(current)[0].length;
352 return Math.min(numSpaces, previous);
353 }, Infinity);
354
355 return new Array(min + 1).join(' ');
356 }
357
358 function getRelativePath(from, to) {
359 const fromParts = from.split(/[/\\]/);
360 const toParts = to.split(/[/\\]/);
361
362 fromParts.pop(); // get dirname
363
364 while (fromParts[0] === toParts[0]) {
365 fromParts.shift();
366 toParts.shift();
367 }
368
369 if (fromParts.length) {
370 let i = fromParts.length;
371 while (i--) fromParts[i] = '..';
372 }
373
374 return fromParts.concat(toParts).join('/');
375 }
376
377 const toString = Object.prototype.toString;
378
379 function isObject(thing) {
380 return toString.call(thing) === '[object Object]';
381 }
382
383 function getLocator(source) {
384 const originalLines = source.split('\n');
385 const lineOffsets = [];
386
387 for (let i = 0, pos = 0; i < originalLines.length; i++) {
388 lineOffsets.push(pos);
389 pos += originalLines[i].length + 1;
390 }
391
392 return function locate(index) {
393 let i = 0;
394 let j = lineOffsets.length;
395 while (i < j) {
396 const m = (i + j) >> 1;
397 if (index < lineOffsets[m]) {
398 j = m;
399 } else {
400 i = m + 1;
401 }
402 }
403 const line = i - 1;
404 const column = index - lineOffsets[line];
405 return { line, column };
406 };
407 }
408
409 const wordRegex = /\w/;
410
411 class Mappings {
412 constructor(hires) {
413 this.hires = hires;
414 this.generatedCodeLine = 0;
415 this.generatedCodeColumn = 0;
416 this.raw = [];
417 this.rawSegments = this.raw[this.generatedCodeLine] = [];
418 this.pending = null;
419 }
420
421 addEdit(sourceIndex, content, loc, nameIndex) {
422 if (content.length) {
423 const contentLengthMinusOne = content.length - 1;
424 let contentLineEnd = content.indexOf('\n', 0);
425 let previousContentLineEnd = -1;
426 // Loop through each line in the content and add a segment, but stop if the last line is empty,
427 // else code afterwards would fill one line too many
428 while (contentLineEnd >= 0 && contentLengthMinusOne > contentLineEnd) {
429 const segment = [this.generatedCodeColumn, sourceIndex, loc.line, loc.column];
430 if (nameIndex >= 0) {
431 segment.push(nameIndex);
432 }
433 this.rawSegments.push(segment);
434
435 this.generatedCodeLine += 1;
436 this.raw[this.generatedCodeLine] = this.rawSegments = [];
437 this.generatedCodeColumn = 0;
438
439 previousContentLineEnd = contentLineEnd;
440 contentLineEnd = content.indexOf('\n', contentLineEnd + 1);
441 }
442
443 const segment = [this.generatedCodeColumn, sourceIndex, loc.line, loc.column];
444 if (nameIndex >= 0) {
445 segment.push(nameIndex);
446 }
447 this.rawSegments.push(segment);
448
449 this.advance(content.slice(previousContentLineEnd + 1));
450 } else if (this.pending) {
451 this.rawSegments.push(this.pending);
452 this.advance(content);
453 }
454
455 this.pending = null;
456 }
457
458 addUneditedChunk(sourceIndex, chunk, original, loc, sourcemapLocations) {
459 let originalCharIndex = chunk.start;
460 let first = true;
461 // when iterating each char, check if it's in a word boundary
462 let charInHiresBoundary = false;
463
464 while (originalCharIndex < chunk.end) {
465 if (original[originalCharIndex] === '\n') {
466 loc.line += 1;
467 loc.column = 0;
468 this.generatedCodeLine += 1;
469 this.raw[this.generatedCodeLine] = this.rawSegments = [];
470 this.generatedCodeColumn = 0;
471 first = true;
472 charInHiresBoundary = false;
473 } else {
474 if (this.hires || first || sourcemapLocations.has(originalCharIndex)) {
475 const segment = [this.generatedCodeColumn, sourceIndex, loc.line, loc.column];
476
477 if (this.hires === 'boundary') {
478 // in hires "boundary", group segments per word boundary than per char
479 if (wordRegex.test(original[originalCharIndex])) {
480 // for first char in the boundary found, start the boundary by pushing a segment
481 if (!charInHiresBoundary) {
482 this.rawSegments.push(segment);
483 charInHiresBoundary = true;
484 }
485 } else {
486 // for non-word char, end the boundary by pushing a segment
487 this.rawSegments.push(segment);
488 charInHiresBoundary = false;
489 }
490 } else {
491 this.rawSegments.push(segment);
492 }
493 }
494
495 loc.column += 1;
496 this.generatedCodeColumn += 1;
497 first = false;
498 }
499
500 originalCharIndex += 1;
501 }
502
503 this.pending = null;
504 }
505
506 advance(str) {
507 if (!str) return;
508
509 const lines = str.split('\n');
510
511 if (lines.length > 1) {
512 for (let i = 0; i < lines.length - 1; i++) {
513 this.generatedCodeLine++;
514 this.raw[this.generatedCodeLine] = this.rawSegments = [];
515 }
516 this.generatedCodeColumn = 0;
517 }
518
519 this.generatedCodeColumn += lines[lines.length - 1].length;
520 }
521 }
522
523 const n = '\n';
524
525 const warned = {
526 insertLeft: false,
527 insertRight: false,
528 storeName: false,
529 };
530
531 class MagicString {
532 constructor(string, options = {}) {
533 const chunk = new Chunk(0, string.length, string);
534
535 Object.defineProperties(this, {
536 original: { writable: true, value: string },
537 outro: { writable: true, value: '' },
538 intro: { writable: true, value: '' },
539 firstChunk: { writable: true, value: chunk },
540 lastChunk: { writable: true, value: chunk },
541 lastSearchedChunk: { writable: true, value: chunk },
542 byStart: { writable: true, value: {} },
543 byEnd: { writable: true, value: {} },
544 filename: { writable: true, value: options.filename },
545 indentExclusionRanges: { writable: true, value: options.indentExclusionRanges },
546 sourcemapLocations: { writable: true, value: new BitSet() },
547 storedNames: { writable: true, value: {} },
548 indentStr: { writable: true, value: undefined },
549 ignoreList: { writable: true, value: options.ignoreList },
550 offset: { writable: true, value: options.offset || 0 },
551 });
552
553 this.byStart[0] = chunk;
554 this.byEnd[string.length] = chunk;
555 }
556
557 addSourcemapLocation(char) {
558 this.sourcemapLocations.add(char);
559 }
560
561 append(content) {
562 if (typeof content !== 'string') throw new TypeError('outro content must be a string');
563
564 this.outro += content;
565 return this;
566 }
567
568 appendLeft(index, content) {
569 index = index + this.offset;
570
571 if (typeof content !== 'string') throw new TypeError('inserted content must be a string');
572
573 this._split(index);
574
575 const chunk = this.byEnd[index];
576
577 if (chunk) {
578 chunk.appendLeft(content);
579 } else {
580 this.intro += content;
581 }
582 return this;
583 }
584
585 appendRight(index, content) {
586 index = index + this.offset;
587
588 if (typeof content !== 'string') throw new TypeError('inserted content must be a string');
589
590 this._split(index);
591
592 const chunk = this.byStart[index];
593
594 if (chunk) {
595 chunk.appendRight(content);
596 } else {
597 this.outro += content;
598 }
599 return this;
600 }
601
602 clone() {
603 const cloned = new MagicString(this.original, { filename: this.filename, offset: this.offset });
604
605 let originalChunk = this.firstChunk;
606 let clonedChunk = (cloned.firstChunk = cloned.lastSearchedChunk = originalChunk.clone());
607
608 while (originalChunk) {
609 cloned.byStart[clonedChunk.start] = clonedChunk;
610 cloned.byEnd[clonedChunk.end] = clonedChunk;
611
612 const nextOriginalChunk = originalChunk.next;
613 const nextClonedChunk = nextOriginalChunk && nextOriginalChunk.clone();
614
615 if (nextClonedChunk) {
616 clonedChunk.next = nextClonedChunk;
617 nextClonedChunk.previous = clonedChunk;
618
619 clonedChunk = nextClonedChunk;
620 }
621
622 originalChunk = nextOriginalChunk;
623 }
624
625 cloned.lastChunk = clonedChunk;
626
627 if (this.indentExclusionRanges) {
628 cloned.indentExclusionRanges = this.indentExclusionRanges.slice();
629 }
630
631 cloned.sourcemapLocations = new BitSet(this.sourcemapLocations);
632
633 cloned.intro = this.intro;
634 cloned.outro = this.outro;
635
636 return cloned;
637 }
638
639 generateDecodedMap(options) {
640 options = options || {};
641
642 const sourceIndex = 0;
643 const names = Object.keys(this.storedNames);
644 const mappings = new Mappings(options.hires);
645
646 const locate = getLocator(this.original);
647
648 if (this.intro) {
649 mappings.advance(this.intro);
650 }
651
652 this.firstChunk.eachNext((chunk) => {
653 const loc = locate(chunk.start);
654
655 if (chunk.intro.length) mappings.advance(chunk.intro);
656
657 if (chunk.edited) {
658 mappings.addEdit(
659 sourceIndex,
660 chunk.content,
661 loc,
662 chunk.storeName ? names.indexOf(chunk.original) : -1,
663 );
664 } else {
665 mappings.addUneditedChunk(sourceIndex, chunk, this.original, loc, this.sourcemapLocations);
666 }
667
668 if (chunk.outro.length) mappings.advance(chunk.outro);
669 });
670
671 return {
672 file: options.file ? options.file.split(/[/\\]/).pop() : undefined,
673 sources: [
674 options.source ? getRelativePath(options.file || '', options.source) : options.file || '',
675 ],
676 sourcesContent: options.includeContent ? [this.original] : undefined,
677 names,
678 mappings: mappings.raw,
679 x_google_ignoreList: this.ignoreList ? [sourceIndex] : undefined,
680 };
681 }
682
683 generateMap(options) {
684 return new SourceMap(this.generateDecodedMap(options));
685 }
686
687 _ensureindentStr() {
688 if (this.indentStr === undefined) {
689 this.indentStr = guessIndent(this.original);
690 }
691 }
692
693 _getRawIndentString() {
694 this._ensureindentStr();
695 return this.indentStr;
696 }
697
698 getIndentString() {
699 this._ensureindentStr();
700 return this.indentStr === null ? '\t' : this.indentStr;
701 }
702
703 indent(indentStr, options) {
704 const pattern = /^[^\r\n]/gm;
705
706 if (isObject(indentStr)) {
707 options = indentStr;
708 indentStr = undefined;
709 }
710
711 if (indentStr === undefined) {
712 this._ensureindentStr();
713 indentStr = this.indentStr || '\t';
714 }
715
716 if (indentStr === '') return this; // noop
717
718 options = options || {};
719
720 // Process exclusion ranges
721 const isExcluded = {};
722
723 if (options.exclude) {
724 const exclusions =
725 typeof options.exclude[0] === 'number' ? [options.exclude] : options.exclude;
726 exclusions.forEach((exclusion) => {
727 for (let i = exclusion[0]; i < exclusion[1]; i += 1) {
728 isExcluded[i] = true;
729 }
730 });
731 }
732
733 let shouldIndentNextCharacter = options.indentStart !== false;
734 const replacer = (match) => {
735 if (shouldIndentNextCharacter) return `${indentStr}${match}`;
736 shouldIndentNextCharacter = true;
737 return match;
738 };
739
740 this.intro = this.intro.replace(pattern, replacer);
741
742 let charIndex = 0;
743 let chunk = this.firstChunk;
744
745 while (chunk) {
746 const end = chunk.end;
747
748 if (chunk.edited) {
749 if (!isExcluded[charIndex]) {
750 chunk.content = chunk.content.replace(pattern, replacer);
751
752 if (chunk.content.length) {
753 shouldIndentNextCharacter = chunk.content[chunk.content.length - 1] === '\n';
754 }
755 }
756 } else {
757 charIndex = chunk.start;
758
759 while (charIndex < end) {
760 if (!isExcluded[charIndex]) {
761 const char = this.original[charIndex];
762
763 if (char === '\n') {
764 shouldIndentNextCharacter = true;
765 } else if (char !== '\r' && shouldIndentNextCharacter) {
766 shouldIndentNextCharacter = false;
767
768 if (charIndex === chunk.start) {
769 chunk.prependRight(indentStr);
770 } else {
771 this._splitChunk(chunk, charIndex);
772 chunk = chunk.next;
773 chunk.prependRight(indentStr);
774 }
775 }
776 }
777
778 charIndex += 1;
779 }
780 }
781
782 charIndex = chunk.end;
783 chunk = chunk.next;
784 }
785
786 this.outro = this.outro.replace(pattern, replacer);
787
788 return this;
789 }
790
791 insert() {
792 throw new Error(
793 'magicString.insert(...) is deprecated. Use prependRight(...) or appendLeft(...)',
794 );
795 }
796
797 insertLeft(index, content) {
798 if (!warned.insertLeft) {
799 console.warn(
800 'magicString.insertLeft(...) is deprecated. Use magicString.appendLeft(...) instead',
801 );
802 warned.insertLeft = true;
803 }
804
805 return this.appendLeft(index, content);
806 }
807
808 insertRight(index, content) {
809 if (!warned.insertRight) {
810 console.warn(
811 'magicString.insertRight(...) is deprecated. Use magicString.prependRight(...) instead',
812 );
813 warned.insertRight = true;
814 }
815
816 return this.prependRight(index, content);
817 }
818
819 move(start, end, index) {
820 start = start + this.offset;
821 end = end + this.offset;
822 index = index + this.offset;
823
824 if (index >= start && index <= end) throw new Error('Cannot move a selection inside itself');
825
826 this._split(start);
827 this._split(end);
828 this._split(index);
829
830 const first = this.byStart[start];
831 const last = this.byEnd[end];
832
833 const oldLeft = first.previous;
834 const oldRight = last.next;
835
836 const newRight = this.byStart[index];
837 if (!newRight && last === this.lastChunk) return this;
838 const newLeft = newRight ? newRight.previous : this.lastChunk;
839
840 if (oldLeft) oldLeft.next = oldRight;
841 if (oldRight) oldRight.previous = oldLeft;
842
843 if (newLeft) newLeft.next = first;
844 if (newRight) newRight.previous = last;
845
846 if (!first.previous) this.firstChunk = last.next;
847 if (!last.next) {
848 this.lastChunk = first.previous;
849 this.lastChunk.next = null;
850 }
851
852 first.previous = newLeft;
853 last.next = newRight || null;
854
855 if (!newLeft) this.firstChunk = first;
856 if (!newRight) this.lastChunk = last;
857 return this;
858 }
859
860 overwrite(start, end, content, options) {
861 options = options || {};
862 return this.update(start, end, content, { ...options, overwrite: !options.contentOnly });
863 }
864
865 update(start, end, content, options) {
866 start = start + this.offset;
867 end = end + this.offset;
868
869 if (typeof content !== 'string') throw new TypeError('replacement content must be a string');
870
871 if (this.original.length !== 0) {
872 while (start < 0) start += this.original.length;
873 while (end < 0) end += this.original.length;
874 }
875
876 if (end > this.original.length) throw new Error('end is out of bounds');
877 if (start === end)
878 throw new Error(
879 'Cannot overwrite a zero-length range – use appendLeft or prependRight instead',
880 );
881
882 this._split(start);
883 this._split(end);
884
885 if (options === true) {
886 if (!warned.storeName) {
887 console.warn(
888 'The final argument to magicString.overwrite(...) should be an options object. See https://github.com/rich-harris/magic-string',
889 );
890 warned.storeName = true;
891 }
892
893 options = { storeName: true };
894 }
895 const storeName = options !== undefined ? options.storeName : false;
896 const overwrite = options !== undefined ? options.overwrite : false;
897
898 if (storeName) {
899 const original = this.original.slice(start, end);
900 Object.defineProperty(this.storedNames, original, {
901 writable: true,
902 value: true,
903 enumerable: true,
904 });
905 }
906
907 const first = this.byStart[start];
908 const last = this.byEnd[end];
909
910 if (first) {
911 let chunk = first;
912 while (chunk !== last) {
913 if (chunk.next !== this.byStart[chunk.end]) {
914 throw new Error('Cannot overwrite across a split point');
915 }
916 chunk = chunk.next;
917 chunk.edit('', false);
918 }
919
920 first.edit(content, storeName, !overwrite);
921 } else {
922 // must be inserting at the end
923 const newChunk = new Chunk(start, end, '').edit(content, storeName);
924
925 // TODO last chunk in the array may not be the last chunk, if it's moved...
926 last.next = newChunk;
927 newChunk.previous = last;
928 }
929 return this;
930 }
931
932 prepend(content) {
933 if (typeof content !== 'string') throw new TypeError('outro content must be a string');
934
935 this.intro = content + this.intro;
936 return this;
937 }
938
939 prependLeft(index, content) {
940 index = index + this.offset;
941
942 if (typeof content !== 'string') throw new TypeError('inserted content must be a string');
943
944 this._split(index);
945
946 const chunk = this.byEnd[index];
947
948 if (chunk) {
949 chunk.prependLeft(content);
950 } else {
951 this.intro = content + this.intro;
952 }
953 return this;
954 }
955
956 prependRight(index, content) {
957 index = index + this.offset;
958
959 if (typeof content !== 'string') throw new TypeError('inserted content must be a string');
960
961 this._split(index);
962
963 const chunk = this.byStart[index];
964
965 if (chunk) {
966 chunk.prependRight(content);
967 } else {
968 this.outro = content + this.outro;
969 }
970 return this;
971 }
972
973 remove(start, end) {
974 start = start + this.offset;
975 end = end + this.offset;
976
977 if (this.original.length !== 0) {
978 while (start < 0) start += this.original.length;
979 while (end < 0) end += this.original.length;
980 }
981
982 if (start === end) return this;
983
984 if (start < 0 || end > this.original.length) throw new Error('Character is out of bounds');
985 if (start > end) throw new Error('end must be greater than start');
986
987 this._split(start);
988 this._split(end);
989
990 let chunk = this.byStart[start];
991
992 while (chunk) {
993 chunk.intro = '';
994 chunk.outro = '';
995 chunk.edit('');
996
997 chunk = end > chunk.end ? this.byStart[chunk.end] : null;
998 }
999 return this;
1000 }
1001
1002 reset(start, end) {
1003 start = start + this.offset;
1004 end = end + this.offset;
1005
1006 if (this.original.length !== 0) {
1007 while (start < 0) start += this.original.length;
1008 while (end < 0) end += this.original.length;
1009 }
1010
1011 if (start === end) return this;
1012
1013 if (start < 0 || end > this.original.length) throw new Error('Character is out of bounds');
1014 if (start > end) throw new Error('end must be greater than start');
1015
1016 this._split(start);
1017 this._split(end);
1018
1019 let chunk = this.byStart[start];
1020
1021 while (chunk) {
1022 chunk.reset();
1023
1024 chunk = end > chunk.end ? this.byStart[chunk.end] : null;
1025 }
1026 return this;
1027 }
1028
1029 lastChar() {
1030 if (this.outro.length) return this.outro[this.outro.length - 1];
1031 let chunk = this.lastChunk;
1032 do {
1033 if (chunk.outro.length) return chunk.outro[chunk.outro.length - 1];
1034 if (chunk.content.length) return chunk.content[chunk.content.length - 1];
1035 if (chunk.intro.length) return chunk.intro[chunk.intro.length - 1];
1036 } while ((chunk = chunk.previous));
1037 if (this.intro.length) return this.intro[this.intro.length - 1];
1038 return '';
1039 }
1040
1041 lastLine() {
1042 let lineIndex = this.outro.lastIndexOf(n);
1043 if (lineIndex !== -1) return this.outro.substr(lineIndex + 1);
1044 let lineStr = this.outro;
1045 let chunk = this.lastChunk;
1046 do {
1047 if (chunk.outro.length > 0) {
1048 lineIndex = chunk.outro.lastIndexOf(n);
1049 if (lineIndex !== -1) return chunk.outro.substr(lineIndex + 1) + lineStr;
1050 lineStr = chunk.outro + lineStr;
1051 }
1052
1053 if (chunk.content.length > 0) {
1054 lineIndex = chunk.content.lastIndexOf(n);
1055 if (lineIndex !== -1) return chunk.content.substr(lineIndex + 1) + lineStr;
1056 lineStr = chunk.content + lineStr;
1057 }
1058
1059 if (chunk.intro.length > 0) {
1060 lineIndex = chunk.intro.lastIndexOf(n);
1061 if (lineIndex !== -1) return chunk.intro.substr(lineIndex + 1) + lineStr;
1062 lineStr = chunk.intro + lineStr;
1063 }
1064 } while ((chunk = chunk.previous));
1065 lineIndex = this.intro.lastIndexOf(n);
1066 if (lineIndex !== -1) return this.intro.substr(lineIndex + 1) + lineStr;
1067 return this.intro + lineStr;
1068 }
1069
1070 slice(start = 0, end = this.original.length - this.offset) {
1071 start = start + this.offset;
1072 end = end + this.offset;
1073
1074 if (this.original.length !== 0) {
1075 while (start < 0) start += this.original.length;
1076 while (end < 0) end += this.original.length;
1077 }
1078
1079 let result = '';
1080
1081 // find start chunk
1082 let chunk = this.firstChunk;
1083 while (chunk && (chunk.start > start || chunk.end <= start)) {
1084 // found end chunk before start
1085 if (chunk.start < end && chunk.end >= end) {
1086 return result;
1087 }
1088
1089 chunk = chunk.next;
1090 }
1091
1092 if (chunk && chunk.edited && chunk.start !== start)
1093 throw new Error(`Cannot use replaced character ${start} as slice start anchor.`);
1094
1095 const startChunk = chunk;
1096 while (chunk) {
1097 if (chunk.intro && (startChunk !== chunk || chunk.start === start)) {
1098 result += chunk.intro;
1099 }
1100
1101 const containsEnd = chunk.start < end && chunk.end >= end;
1102 if (containsEnd && chunk.edited && chunk.end !== end)
1103 throw new Error(`Cannot use replaced character ${end} as slice end anchor.`);
1104
1105 const sliceStart = startChunk === chunk ? start - chunk.start : 0;
1106 const sliceEnd = containsEnd ? chunk.content.length + end - chunk.end : chunk.content.length;
1107
1108 result += chunk.content.slice(sliceStart, sliceEnd);
1109
1110 if (chunk.outro && (!containsEnd || chunk.end === end)) {
1111 result += chunk.outro;
1112 }
1113
1114 if (containsEnd) {
1115 break;
1116 }
1117
1118 chunk = chunk.next;
1119 }
1120
1121 return result;
1122 }
1123
1124 // TODO deprecate this? not really very useful
1125 snip(start, end) {
1126 const clone = this.clone();
1127 clone.remove(0, start);
1128 clone.remove(end, clone.original.length);
1129
1130 return clone;
1131 }
1132
1133 _split(index) {
1134 if (this.byStart[index] || this.byEnd[index]) return;
1135
1136 let chunk = this.lastSearchedChunk;
1137 const searchForward = index > chunk.end;
1138
1139 while (chunk) {
1140 if (chunk.contains(index)) return this._splitChunk(chunk, index);
1141
1142 chunk = searchForward ? this.byStart[chunk.end] : this.byEnd[chunk.start];
1143 }
1144 }
1145
1146 _splitChunk(chunk, index) {
1147 if (chunk.edited && chunk.content.length) {
1148 // zero-length edited chunks are a special case (overlapping replacements)
1149 const loc = getLocator(this.original)(index);
1150 throw new Error(
1151 `Cannot split a chunk that has already been edited (${loc.line}:${loc.column} – "${chunk.original}")`,
1152 );
1153 }
1154
1155 const newChunk = chunk.split(index);
1156
1157 this.byEnd[index] = chunk;
1158 this.byStart[index] = newChunk;
1159 this.byEnd[newChunk.end] = newChunk;
1160
1161 if (chunk === this.lastChunk) this.lastChunk = newChunk;
1162
1163 this.lastSearchedChunk = chunk;
1164 return true;
1165 }
1166
1167 toString() {
1168 let str = this.intro;
1169
1170 let chunk = this.firstChunk;
1171 while (chunk) {
1172 str += chunk.toString();
1173 chunk = chunk.next;
1174 }
1175
1176 return str + this.outro;
1177 }
1178
1179 isEmpty() {
1180 let chunk = this.firstChunk;
1181 do {
1182 if (
1183 (chunk.intro.length && chunk.intro.trim()) ||
1184 (chunk.content.length && chunk.content.trim()) ||
1185 (chunk.outro.length && chunk.outro.trim())
1186 )
1187 return false;
1188 } while ((chunk = chunk.next));
1189 return true;
1190 }
1191
1192 length() {
1193 let chunk = this.firstChunk;
1194 let length = 0;
1195 do {
1196 length += chunk.intro.length + chunk.content.length + chunk.outro.length;
1197 } while ((chunk = chunk.next));
1198 return length;
1199 }
1200
1201 trimLines() {
1202 return this.trim('[\\r\\n]');
1203 }
1204
1205 trim(charType) {
1206 return this.trimStart(charType).trimEnd(charType);
1207 }
1208
1209 trimEndAborted(charType) {
1210 const rx = new RegExp((charType || '\\s') + '+$');
1211
1212 this.outro = this.outro.replace(rx, '');
1213 if (this.outro.length) return true;
1214
1215 let chunk = this.lastChunk;
1216
1217 do {
1218 const end = chunk.end;
1219 const aborted = chunk.trimEnd(rx);
1220
1221 // if chunk was trimmed, we have a new lastChunk
1222 if (chunk.end !== end) {
1223 if (this.lastChunk === chunk) {
1224 this.lastChunk = chunk.next;
1225 }
1226
1227 this.byEnd[chunk.end] = chunk;
1228 this.byStart[chunk.next.start] = chunk.next;
1229 this.byEnd[chunk.next.end] = chunk.next;
1230 }
1231
1232 if (aborted) return true;
1233 chunk = chunk.previous;
1234 } while (chunk);
1235
1236 return false;
1237 }
1238
1239 trimEnd(charType) {
1240 this.trimEndAborted(charType);
1241 return this;
1242 }
1243 trimStartAborted(charType) {
1244 const rx = new RegExp('^' + (charType || '\\s') + '+');
1245
1246 this.intro = this.intro.replace(rx, '');
1247 if (this.intro.length) return true;
1248
1249 let chunk = this.firstChunk;
1250
1251 do {
1252 const end = chunk.end;
1253 const aborted = chunk.trimStart(rx);
1254
1255 if (chunk.end !== end) {
1256 // special case...
1257 if (chunk === this.lastChunk) this.lastChunk = chunk.next;
1258
1259 this.byEnd[chunk.end] = chunk;
1260 this.byStart[chunk.next.start] = chunk.next;
1261 this.byEnd[chunk.next.end] = chunk.next;
1262 }
1263
1264 if (aborted) return true;
1265 chunk = chunk.next;
1266 } while (chunk);
1267
1268 return false;
1269 }
1270
1271 trimStart(charType) {
1272 this.trimStartAborted(charType);
1273 return this;
1274 }
1275
1276 hasChanged() {
1277 return this.original !== this.toString();
1278 }
1279
1280 _replaceRegexp(searchValue, replacement) {
1281 function getReplacement(match, str) {
1282 if (typeof replacement === 'string') {
1283 return replacement.replace(/\$(\$|&|\d+)/g, (_, i) => {
1284 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace#specifying_a_string_as_a_parameter
1285 if (i === '$') return '$';
1286 if (i === '&') return match[0];
1287 const num = +i;
1288 if (num < match.length) return match[+i];
1289 return `$${i}`;
1290 });
1291 } else {
1292 return replacement(...match, match.index, str, match.groups);
1293 }
1294 }
1295 function matchAll(re, str) {
1296 let match;
1297 const matches = [];
1298 while ((match = re.exec(str))) {
1299 matches.push(match);
1300 }
1301 return matches;
1302 }
1303 if (searchValue.global) {
1304 const matches = matchAll(searchValue, this.original);
1305 matches.forEach((match) => {
1306 if (match.index != null) {
1307 const replacement = getReplacement(match, this.original);
1308 if (replacement !== match[0]) {
1309 this.overwrite(match.index, match.index + match[0].length, replacement);
1310 }
1311 }
1312 });
1313 } else {
1314 const match = this.original.match(searchValue);
1315 if (match && match.index != null) {
1316 const replacement = getReplacement(match, this.original);
1317 if (replacement !== match[0]) {
1318 this.overwrite(match.index, match.index + match[0].length, replacement);
1319 }
1320 }
1321 }
1322 return this;
1323 }
1324
1325 _replaceString(string, replacement) {
1326 const { original } = this;
1327 const index = original.indexOf(string);
1328
1329 if (index !== -1) {
1330 this.overwrite(index, index + string.length, replacement);
1331 }
1332
1333 return this;
1334 }
1335
1336 replace(searchValue, replacement) {
1337 if (typeof searchValue === 'string') {
1338 return this._replaceString(searchValue, replacement);
1339 }
1340
1341 return this._replaceRegexp(searchValue, replacement);
1342 }
1343
1344 _replaceAllString(string, replacement) {
1345 const { original } = this;
1346 const stringLength = string.length;
1347 for (
1348 let index = original.indexOf(string);
1349 index !== -1;
1350 index = original.indexOf(string, index + stringLength)
1351 ) {
1352 const previous = original.slice(index, index + stringLength);
1353 if (previous !== replacement) this.overwrite(index, index + stringLength, replacement);
1354 }
1355
1356 return this;
1357 }
1358
1359 replaceAll(searchValue, replacement) {
1360 if (typeof searchValue === 'string') {
1361 return this._replaceAllString(searchValue, replacement);
1362 }
1363
1364 if (!searchValue.global) {
1365 throw new TypeError(
1366 'MagicString.prototype.replaceAll called with a non-global RegExp argument',
1367 );
1368 }
1369
1370 return this._replaceRegexp(searchValue, replacement);
1371 }
1372 }
1373
1374 const hasOwnProp = Object.prototype.hasOwnProperty;
1375
1376 class Bundle {
1377 constructor(options = {}) {
1378 this.intro = options.intro || '';
1379 this.separator = options.separator !== undefined ? options.separator : '\n';
1380 this.sources = [];
1381 this.uniqueSources = [];
1382 this.uniqueSourceIndexByFilename = {};
1383 }
1384
1385 addSource(source) {
1386 if (source instanceof MagicString) {
1387 return this.addSource({
1388 content: source,
1389 filename: source.filename,
1390 separator: this.separator,
1391 });
1392 }
1393
1394 if (!isObject(source) || !source.content) {
1395 throw new Error(
1396 'bundle.addSource() takes an object with a `content` property, which should be an instance of MagicString, and an optional `filename`',
1397 );
1398 }
1399
1400 ['filename', 'ignoreList', 'indentExclusionRanges', 'separator'].forEach((option) => {
1401 if (!hasOwnProp.call(source, option)) source[option] = source.content[option];
1402 });
1403
1404 if (source.separator === undefined) {
1405 // TODO there's a bunch of this sort of thing, needs cleaning up
1406 source.separator = this.separator;
1407 }
1408
1409 if (source.filename) {
1410 if (!hasOwnProp.call(this.uniqueSourceIndexByFilename, source.filename)) {
1411 this.uniqueSourceIndexByFilename[source.filename] = this.uniqueSources.length;
1412 this.uniqueSources.push({ filename: source.filename, content: source.content.original });
1413 } else {
1414 const uniqueSource = this.uniqueSources[this.uniqueSourceIndexByFilename[source.filename]];
1415 if (source.content.original !== uniqueSource.content) {
1416 throw new Error(`Illegal source: same filename (${source.filename}), different contents`);
1417 }
1418 }
1419 }
1420
1421 this.sources.push(source);
1422 return this;
1423 }
1424
1425 append(str, options) {
1426 this.addSource({
1427 content: new MagicString(str),
1428 separator: (options && options.separator) || '',
1429 });
1430
1431 return this;
1432 }
1433
1434 clone() {
1435 const bundle = new Bundle({
1436 intro: this.intro,
1437 separator: this.separator,
1438 });
1439
1440 this.sources.forEach((source) => {
1441 bundle.addSource({
1442 filename: source.filename,
1443 content: source.content.clone(),
1444 separator: source.separator,
1445 });
1446 });
1447
1448 return bundle;
1449 }
1450
1451 generateDecodedMap(options = {}) {
1452 const names = [];
1453 let x_google_ignoreList = undefined;
1454 this.sources.forEach((source) => {
1455 Object.keys(source.content.storedNames).forEach((name) => {
1456 if (!~names.indexOf(name)) names.push(name);
1457 });
1458 });
1459
1460 const mappings = new Mappings(options.hires);
1461
1462 if (this.intro) {
1463 mappings.advance(this.intro);
1464 }
1465
1466 this.sources.forEach((source, i) => {
1467 if (i > 0) {
1468 mappings.advance(this.separator);
1469 }
1470
1471 const sourceIndex = source.filename ? this.uniqueSourceIndexByFilename[source.filename] : -1;
1472 const magicString = source.content;
1473 const locate = getLocator(magicString.original);
1474
1475 if (magicString.intro) {
1476 mappings.advance(magicString.intro);
1477 }
1478
1479 magicString.firstChunk.eachNext((chunk) => {
1480 const loc = locate(chunk.start);
1481
1482 if (chunk.intro.length) mappings.advance(chunk.intro);
1483
1484 if (source.filename) {
1485 if (chunk.edited) {
1486 mappings.addEdit(
1487 sourceIndex,
1488 chunk.content,
1489 loc,
1490 chunk.storeName ? names.indexOf(chunk.original) : -1,
1491 );
1492 } else {
1493 mappings.addUneditedChunk(
1494 sourceIndex,
1495 chunk,
1496 magicString.original,
1497 loc,
1498 magicString.sourcemapLocations,
1499 );
1500 }
1501 } else {
1502 mappings.advance(chunk.content);
1503 }
1504
1505 if (chunk.outro.length) mappings.advance(chunk.outro);
1506 });
1507
1508 if (magicString.outro) {
1509 mappings.advance(magicString.outro);
1510 }
1511
1512 if (source.ignoreList && sourceIndex !== -1) {
1513 if (x_google_ignoreList === undefined) {
1514 x_google_ignoreList = [];
1515 }
1516 x_google_ignoreList.push(sourceIndex);
1517 }
1518 });
1519
1520 return {
1521 file: options.file ? options.file.split(/[/\\]/).pop() : undefined,
1522 sources: this.uniqueSources.map((source) => {
1523 return options.file ? getRelativePath(options.file, source.filename) : source.filename;
1524 }),
1525 sourcesContent: this.uniqueSources.map((source) => {
1526 return options.includeContent ? source.content : null;
1527 }),
1528 names,
1529 mappings: mappings.raw,
1530 x_google_ignoreList,
1531 };
1532 }
1533
1534 generateMap(options) {
1535 return new SourceMap(this.generateDecodedMap(options));
1536 }
1537
1538 getIndentString() {
1539 const indentStringCounts = {};
1540
1541 this.sources.forEach((source) => {
1542 const indentStr = source.content._getRawIndentString();
1543
1544 if (indentStr === null) return;
1545
1546 if (!indentStringCounts[indentStr]) indentStringCounts[indentStr] = 0;
1547 indentStringCounts[indentStr] += 1;
1548 });
1549
1550 return (
1551 Object.keys(indentStringCounts).sort((a, b) => {
1552 return indentStringCounts[a] - indentStringCounts[b];
1553 })[0] || '\t'
1554 );
1555 }
1556
1557 indent(indentStr) {
1558 if (!arguments.length) {
1559 indentStr = this.getIndentString();
1560 }
1561
1562 if (indentStr === '') return this; // noop
1563
1564 let trailingNewline = !this.intro || this.intro.slice(-1) === '\n';
1565
1566 this.sources.forEach((source, i) => {
1567 const separator = source.separator !== undefined ? source.separator : this.separator;
1568 const indentStart = trailingNewline || (i > 0 && /\r?\n$/.test(separator));
1569
1570 source.content.indent(indentStr, {
1571 exclude: source.indentExclusionRanges,
1572 indentStart, //: trailingNewline || /\r?\n$/.test( separator ) //true///\r?\n/.test( separator )
1573 });
1574
1575 trailingNewline = source.content.lastChar() === '\n';
1576 });
1577
1578 if (this.intro) {
1579 this.intro =
1580 indentStr +
1581 this.intro.replace(/^[^\n]/gm, (match, index) => {
1582 return index > 0 ? indentStr + match : match;
1583 });
1584 }
1585
1586 return this;
1587 }
1588
1589 prepend(str) {
1590 this.intro = str + this.intro;
1591 return this;
1592 }
1593
1594 toString() {
1595 const body = this.sources
1596 .map((source, i) => {
1597 const separator = source.separator !== undefined ? source.separator : this.separator;
1598 const str = (i > 0 ? separator : '') + source.content.toString();
1599
1600 return str;
1601 })
1602 .join('');
1603
1604 return this.intro + body;
1605 }
1606
1607 isEmpty() {
1608 if (this.intro.length && this.intro.trim()) return false;
1609 if (this.sources.some((source) => !source.content.isEmpty())) return false;
1610 return true;
1611 }
1612
1613 length() {
1614 return this.sources.reduce(
1615 (length, source) => length + source.content.length(),
1616 this.intro.length,
1617 );
1618 }
1619
1620 trimLines() {
1621 return this.trim('[\\r\\n]');
1622 }
1623
1624 trim(charType) {
1625 return this.trimStart(charType).trimEnd(charType);
1626 }
1627
1628 trimStart(charType) {
1629 const rx = new RegExp('^' + (charType || '\\s') + '+');
1630 this.intro = this.intro.replace(rx, '');
1631
1632 if (!this.intro) {
1633 let source;
1634 let i = 0;
1635
1636 do {
1637 source = this.sources[i++];
1638 if (!source) {
1639 break;
1640 }
1641 } while (!source.content.trimStartAborted(charType));
1642 }
1643
1644 return this;
1645 }
1646
1647 trimEnd(charType) {
1648 const rx = new RegExp((charType || '\\s') + '+$');
1649
1650 let source;
1651 let i = this.sources.length - 1;
1652
1653 do {
1654 source = this.sources[i--];
1655 if (!source) {
1656 this.intro = this.intro.replace(rx, '');
1657 break;
1658 }
1659 } while (!source.content.trimEndAborted(charType));
1660
1661 return this;
1662 }
1663 }
1664
1665 MagicString.Bundle = Bundle;
1666 MagicString.SourceMap = SourceMap;
1667 MagicString.default = MagicString; // work around TypeScript bug https://github.com/Rich-Harris/magic-string/pull/121
1668
1669 return MagicString;
1670
1671}));
1672//# sourceMappingURL=magic-string.umd.js.map
Note: See TracBrowser for help on using the repository browser.