| 371 | } |
| 372 | |
| 373 | update(start, end, content, options) { |
| 374 | start = start + this.offset; |
| 375 | end = end + this.offset; |
| 376 | |
| 377 | if (typeof content !== 'string') throw new TypeError('replacement content must be a string'); |
| 378 | |
| 379 | if (this.original.length !== 0) { |
| 380 | while (start < 0) start += this.original.length; |
| 381 | while (end < 0) end += this.original.length; |
| 382 | } |
| 383 | |
| 384 | if (end > this.original.length) throw new Error('end is out of bounds'); |
| 385 | if (start === end) |
| 386 | throw new Error( |
| 387 | 'Cannot overwrite a zero-length range – use appendLeft or prependRight instead', |
| 388 | ); |
| 389 | |
| 390 | if (DEBUG) this.stats.time('overwrite'); |
| 391 | |
| 392 | this._split(start); |
| 393 | this._split(end); |
| 394 | |
| 395 | if (options === true) { |
| 396 | if (!warned.storeName) { |
| 397 | console.warn( |
| 398 | 'The final argument to magicString.overwrite(...) should be an options object. See https://github.com/rich-harris/magic-string', |
| 399 | ); |
| 400 | warned.storeName = true; |
| 401 | } |
| 402 | |
| 403 | options = { storeName: true }; |
| 404 | } |
| 405 | const storeName = options !== undefined ? options.storeName : false; |
| 406 | const overwrite = options !== undefined ? options.overwrite : false; |
| 407 | |
| 408 | if (storeName) { |
| 409 | const original = this.original.slice(start, end); |
| 410 | Object.defineProperty(this.storedNames, original, { |
| 411 | writable: true, |
| 412 | value: true, |
| 413 | enumerable: true, |
| 414 | }); |
| 415 | } |
| 416 | |
| 417 | const first = this.byStart[start]; |
| 418 | const last = this.byEnd[end]; |
| 419 | |
| 420 | if (first) { |
| 421 | let chunk = first; |
| 422 | while (chunk !== last) { |
| 423 | if (chunk.next !== this.byStart[chunk.end]) { |
| 424 | throw new Error('Cannot overwrite across a split point'); |
| 425 | } |
| 426 | chunk = chunk.next; |
| 427 | chunk.edit('', false); |
| 428 | } |
| 429 | |
| 430 | first.edit(content, storeName, !overwrite); |