src/vs/editor/common/languages/linkComputer.ts/Uint8Matrix/constructor
class Uint8Matrix:	constructor(rows: number, cols: number, defaultValue: number) {
		const data = new Uint8Array(rows * cols);
		for (let i = 0, len = rows * cols; i < len; i++) {
			data[i] = defaultValue;
		}

		this._data = data;
		this.rows = rows;
		this.cols = cols;
	}