Method _splitChunk

src/MagicString.js:682–702

(chunk, index)

	}

	_splitChunk(chunk, index) {
		if (chunk.edited && chunk.content.length) {
			// zero-length edited chunks are a special case (overlapping replacements)
			const loc = getLocator(this.original)(index);
			throw new Error(
				`Cannot split a chunk that has already been edited (${loc.line}:${loc.column} – "${chunk.original}")`,
			);
		}

		const newChunk = chunk.split(index);

		this.byEnd[index] = chunk;
		this.byStart[index] = newChunk;
		this.byEnd[newChunk.end] = newChunk;

		if (chunk === this.lastChunk) this.lastChunk = newChunk;

		this.lastSearchedChunk = chunk;
		if (DEBUG) this.stats.timeEnd('_split');
		return true;
	}

	toString() {
		let str = this.intro;