Fix phpdoc using phpstan level 3

Signed-off-by: William Desportes <williamdes@wdes.fr>

src/Components/DataType.php

@@ -94,7 +94,7 @@ public function __construct(
      * @param TokensList $list    the list of tokens that are being parsed
      * @param array      $options parameters for parsing
      *
-     * @return DataType
+     * @return DataType|null
      */
     public static function parse(Parser $parser, TokensList $list, array $options = array())
     {

src/Components/Expression.php

@@ -153,7 +153,7 @@ public function __construct($database = null, $table = null, $column = null, $al
      * @param TokensList $list    the list of tokens that are being parsed
      * @param array      $options parameters for parsing
      *
-     * @return Expression
+     * @return Expression|null
      */
     public static function parse(Parser $parser, TokensList $list, array $options = array())
     {

src/Components/IntoKeyword.php

@@ -118,7 +118,7 @@ class IntoKeyword extends Component
      * @param array             $columns        column list of destination
      * @param array             $values         selected fields
      * @param OptionsArray      $fields_options options for FIELDS/COLUMNS keyword
-     * @param OptionsArray      $fields_keyword options for OPTINOS keyword
+     * @param bool              $fields_keyword options for OPTIONS keyword
      */
     public function __construct(
         $type = null,

src/Components/UnionKeyword.php

@@ -18,8 +18,8 @@
 class UnionKeyword extends Component
 {
     /**
-     * @param UnionKeyword[] $component the component to be built
-     * @param array          $options   parameters for building
+     * @param array<UnionKeyword[]> $component the component to be built
+     * @param array                 $options   parameters for building
      *
      * @return string
      */

src/Context.php

@@ -268,7 +268,7 @@ abstract class Context
      * @param string $str        string to be checked
      * @param bool   $isReserved checks if the keyword is reserved
      *
-     * @return int
+     * @return int|null
      */
     public static function isKeyword($str, $isReserved = false)
     {
@@ -293,7 +293,7 @@ public static function isKeyword($str, $isReserved = false)
      *
      * @param string $str string to be checked
      *
-     * @return int the appropriate flag for the operator
+     * @return int|null the appropriate flag for the operator
      */
     public static function isOperator($str)
     {
@@ -328,7 +328,7 @@ public static function isWhitespace($str)
      * @param string $str string to be checked
      * @param mixed  $end
      *
-     * @return int the appropriate flag for the comment type
+     * @return int|null the appropriate flag for the comment type
      */
     public static function isComment($str, $end = false)
     {
@@ -398,7 +398,7 @@ public static function isNumber($str)
      *
      * @param string $str string to be checked
      *
-     * @return int the appropriate flag for the symbol type
+     * @return int|null the appropriate flag for the symbol type
      */
     public static function isSymbol($str)
     {
@@ -424,7 +424,7 @@ public static function isSymbol($str)
      *
      * @param string $str string to be checked
      *
-     * @return int the appropriate flag for the string type
+     * @return int|null the appropriate flag for the string type
      */
     public static function isString($str)
     {
@@ -500,7 +500,7 @@ public static function load($context = '')
      * @param string $context name of the context or full class name that
      *                        defines the context
      *
-     * @return string The loaded context. `null` if no context was loaded.
+     * @return string|null The loaded context. `null` if no context was loaded.
      */
     public static function loadClosest($context = '')
     {
@@ -555,7 +555,7 @@ public static function setMode($mode = '')
      * @param array|string $str   the string to be escaped
      * @param string       $quote quote to be used when escaping
      *
-     * @return string
+     * @return string|array
      */
     public static function escape($str, $quote = '`')
     {

src/TokensList.php

@@ -93,7 +93,7 @@ public function add(Token $token)
      * Gets the next token. Skips any irrelevant token (whitespaces and
      * comments).
      *
-     * @return Token
+     * @return Token|null
      */
     public function getNext()
     {
@@ -113,7 +113,7 @@ public function getNext()
      *
      * @param int $type the type
      *
-     * @return Token
+     * @return Token|null
      */
     public function getNextOfType($type)
     {
@@ -132,7 +132,7 @@ public function getNextOfType($type)
      * @param int    $type  the type of the token
      * @param string $value the value of the token
      *
-     * @return Token
+     * @return Token|null
      */
     public function getNextOfTypeAndValue($type, $value)
     {

src/UtfString.php

@@ -99,7 +99,7 @@ public function offsetExists($offset)
      *
      * @param int $offset the offset to be returned
      *
-     * @return string
+     * @return string|null
      */
     public function offsetGet($offset)
     {

src/Utils/BufferedQuery.php

@@ -137,7 +137,7 @@ public function setDelimiter($delimiter)
      *
      * @param bool $end whether the end of the buffer was reached
      *
-     * @return string
+     * @return string|false
      */
     public function extract($end = false)
     {