added type hints

src/Database/Table/ActiveRow.php

@@ -260,7 +260,7 @@ public function offsetUnset($column): void
 	}
 
 
-	public function __set($column, $value)
+	public function __set(string $column, $value): void
 	{
 		throw new Nette\DeprecatedException('ActiveRow is read-only; use update() method instead.');
 	}
@@ -288,7 +288,7 @@ public function &__get(string $key)
 	}
 
 
-	public function __isset($key)
+	public function __isset(string $key): bool
 	{
 		if ($this->accessColumn($key)) {
 			return isset($this->data[$key]);
@@ -305,7 +305,7 @@ public function __isset($key)
 	}
 
 
-	public function __unset($key)
+	public function __unset(string $key): void
 	{
 		throw new Nette\DeprecatedException('ActiveRow is read-only.');
 	}
@@ -314,7 +314,7 @@ public function __unset($key)
 	/**
 	 * @internal
 	 */
-	public function accessColumn($key, bool $selectColumn = true): bool
+	public function accessColumn(?string $key, bool $selectColumn = true): bool
 	{
 		if ($this->table->accessColumn($key, $selectColumn) && !$this->dataRefreshed) {
 			if (!isset($this->table[$this->getSignature()])) {

src/Database/Table/GroupedSelection.php

@@ -66,7 +66,7 @@ public function setActive($active)
 	/**
 	 * @return static
 	 */
-	public function select($columns, ...$params)
+	public function select(string $columns, ...$params)
 	{
 		if (!$this->sqlBuilder->getSelect()) {
 			$this->sqlBuilder->addSelect("$this->name.$this->column");

src/Database/Table/Selection.php

@@ -275,7 +275,7 @@ public function fetchAssoc(string $path): array
 	 * @param  string  $columns  for example "column, MD5(column) AS column_md5"
 	 * @return static
 	 */
-	public function select($columns, ...$params)
+	public function select(string $columns, ...$params)
 	{
 		$this->emptyResultSet();
 		$this->sqlBuilder->addSelect($columns, ...$params);
@@ -337,7 +337,7 @@ public function joinWhere(string $tableChain, string $condition, ...$params)
 	 * Adds condition, more calls appends with AND.
 	 * @param  string|string[]  $condition  possibly containing ?
 	 */
-	protected function condition($condition, array $params, $tableChain = null): void
+	protected function condition($condition, array $params, ?string $tableChain = null): void
 	{
 		$this->emptyResultSet();
 		if (is_array($condition) && $params === []) { // where(['column1' => 1, 'column2 > ?' => 2])
@@ -894,9 +894,6 @@ public function update(iterable $data): int
 	{
 		if ($data instanceof \Traversable) {
 			$data = iterator_to_array($data);
-
-		} elseif (!is_array($data)) {
-			throw new Nette\InvalidArgumentException;
 		}
 
 		if (!$data) {

src/Database/Table/SqlBuilder.php

@@ -276,12 +276,8 @@ public function importGroupConditions(self $builder): bool
 	/********************* SQL selectors ****************d*g**/
 
 
-	public function addSelect($columns, ...$params): void
+	public function addSelect(string $columns, ...$params): void
 	{
-		if (is_array($columns)) {
-			throw new Nette\InvalidArgumentException('Select column must be a string.');
-		}
-
 		$this->select[] = $columns;
 		$this->parameters['select'] = array_merge($this->parameters['select'], $params);
 	}
@@ -323,7 +319,7 @@ protected function addCondition($condition, array $params, array &$conditions, a
 			return $this->addConditionComposition($condition, $params[0], $conditions, $conditionsParameters);
 		}
 
-		$hash = $this->getConditionHash($condition, $params);
+		$hash = $this->getConditionHash(is_string($condition) ? $condition : '', $params);
 		if (isset($this->conditions[$hash])) {
 			return false;
 		}
@@ -373,7 +369,7 @@ protected function addCondition($condition, array $params, array &$conditions, a
 					if (!$clone->getSqlBuilder()->select) {
 						try {
 							$clone->select($clone->getPrimary());
-						} catch (\LogicException $e) {
+						} catch (\LogicException | \TypeError $e) {
 							throw new Nette\InvalidArgumentException('Selection argument must have defined a select column.', 0, $e);
 						}
 					}
@@ -527,7 +523,7 @@ public function getGroup(): string
 	}
 
 
-	public function setHaving($having, ...$params): void
+	public function setHaving(string $having, ...$params): void
 	{
 		$this->having = $having;
 		$this->parameters['having'] = $params;
@@ -549,7 +545,7 @@ protected function buildSelect(array $columns): string
 	}
 
 
-	protected function parseJoinConditions(&$joins, $joinConditions): array
+	protected function parseJoinConditions(array &$joins, array $joinConditions): array
 	{
 		$tableJoins = $leftJoinDependency = $finalJoinConditions = [];
 		foreach ($joinConditions as $tableChain => $joinCondition) {
@@ -585,7 +581,12 @@ protected function parseJoinConditions(&$joins, $joinConditions): array
 	}
 
 
-	protected function getSortedJoins(string $table, &$leftJoinDependency, &$tableJoins, &$finalJoins): void
+	protected function getSortedJoins(
+		string $table,
+		array &$leftJoinDependency,
+		array &$tableJoins,
+		array &$finalJoins
+	): void
 	{
 		if (isset($this->expandingJoins[$table])) {
 			$path = implode("' => '", array_map(function (string $value): string { return $this->reservedTableNames[$value]; }, array_merge(array_keys($this->expandingJoins), [$table])));
@@ -630,7 +631,7 @@ protected function getSortedJoins(string $table, &$leftJoinDependency, &$tableJo
 	}
 
 
-	protected function parseJoins(&$joins, &$query): void
+	protected function parseJoins(array &$joins, string &$query): void
 	{
 		$query = preg_replace_callback($this->getColumnChainsRegxp(), function (array $match) use (&$joins): string {
 			return $this->parseJoinsCb($joins, $match);
@@ -646,7 +647,7 @@ private function getColumnChainsRegxp(): string
 	}
 
 
-	public function parseJoinsCb(&$joins, $match): string
+	public function parseJoinsCb(array &$joins, array $match): string
 	{
 		$chain = $match['chain'];
 		if (!empty($chain[0]) && ($chain[0] !== '.' && $chain[0] !== ':')) {
@@ -843,7 +844,7 @@ protected function addConditionComposition(
 	}
 
 
-	private function getConditionHash($condition, array $parameters): string
+	private function getConditionHash(string $condition, array $parameters): string
 	{
 		foreach ($parameters as $key => &$parameter) {
 			if ($parameter instanceof Selection) {
@@ -853,7 +854,7 @@ private function getConditionHash($condition, array $parameters): string
 			} elseif (is_object($parameter) && method_exists($parameter, '__toString')) {
 				$parameter = $parameter->__toString();
 			} elseif (is_array($parameter) || $parameter instanceof \ArrayAccess) {
-				$parameter = $this->getConditionHash($key, $parameter);
+				$parameter = $this->getConditionHash((string) $key, $parameter);
 			}
 		}